diff options
Diffstat (limited to 'lib/psutil')
30 files changed, 22837 insertions, 0 deletions
diff --git a/lib/psutil/__init__.py b/lib/psutil/__init__.py new file mode 100644 index 0000000..5674279 --- /dev/null +++ b/lib/psutil/__init__.py @@ -0,0 +1,2421 @@ +# -*- coding: utf-8 -*- + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""psutil is a cross-platform library for retrieving information on +running processes and system utilization (CPU, memory, disks, network, +sensors) in Python. Supported platforms: + + - Linux + - Windows + - macOS + - FreeBSD + - OpenBSD + - NetBSD + - Sun Solaris + - AIX + +Works with Python versions 2.7 and 3.4+. +""" + +from __future__ import division + +import collections +import contextlib +import datetime +import functools +import os +import signal +import subprocess +import sys +import threading +import time + + +try: + import pwd +except ImportError: + pwd = None + +from . import _common +from ._common import AIX +from ._common import BSD +from ._common import CONN_CLOSE +from ._common import CONN_CLOSE_WAIT +from ._common import CONN_CLOSING +from ._common import CONN_ESTABLISHED +from ._common import CONN_FIN_WAIT1 +from ._common import CONN_FIN_WAIT2 +from ._common import CONN_LAST_ACK +from ._common import CONN_LISTEN +from ._common import CONN_NONE +from ._common import CONN_SYN_RECV +from ._common import CONN_SYN_SENT +from ._common import CONN_TIME_WAIT +from ._common import FREEBSD # NOQA +from ._common import LINUX +from ._common import MACOS +from ._common import NETBSD # NOQA +from ._common import NIC_DUPLEX_FULL +from ._common import NIC_DUPLEX_HALF +from ._common import NIC_DUPLEX_UNKNOWN +from ._common import OPENBSD # NOQA +from ._common import OSX # deprecated alias +from ._common import POSIX # NOQA +from ._common import POWER_TIME_UNKNOWN +from ._common import POWER_TIME_UNLIMITED +from ._common import STATUS_DEAD +from ._common import STATUS_DISK_SLEEP +from ._common import STATUS_IDLE +from ._common import STATUS_LOCKED +from ._common import STATUS_PARKED +from ._common import STATUS_RUNNING +from ._common import STATUS_SLEEPING +from ._common import STATUS_STOPPED +from ._common import STATUS_TRACING_STOP +from ._common import STATUS_WAITING +from ._common import STATUS_WAKING +from ._common import STATUS_ZOMBIE +from ._common import SUNOS +from ._common import WINDOWS +from ._common import AccessDenied +from ._common import Error +from ._common import NoSuchProcess +from ._common import TimeoutExpired +from ._common import ZombieProcess +from ._common import memoize_when_activated +from ._common import wrap_numbers as _wrap_numbers +from ._compat import PY3 as _PY3 +from ._compat import PermissionError +from ._compat import ProcessLookupError +from ._compat import SubprocessTimeoutExpired as _SubprocessTimeoutExpired +from ._compat import long + + +if LINUX: + # This is public API and it will be retrieved from _pslinux.py + # via sys.modules. + PROCFS_PATH = "/proc" + + from . import _pslinux as _psplatform + from ._pslinux import IOPRIO_CLASS_BE # NOQA + from ._pslinux import IOPRIO_CLASS_IDLE # NOQA + from ._pslinux import IOPRIO_CLASS_NONE # NOQA + from ._pslinux import IOPRIO_CLASS_RT # NOQA + +elif WINDOWS: + from . import _pswindows as _psplatform + from ._psutil_windows import ABOVE_NORMAL_PRIORITY_CLASS # NOQA + from ._psutil_windows import BELOW_NORMAL_PRIORITY_CLASS # NOQA + from ._psutil_windows import HIGH_PRIORITY_CLASS # NOQA + from ._psutil_windows import IDLE_PRIORITY_CLASS # NOQA + from ._psutil_windows import NORMAL_PRIORITY_CLASS # NOQA + from ._psutil_windows import REALTIME_PRIORITY_CLASS # NOQA + from ._pswindows import CONN_DELETE_TCB # NOQA + from ._pswindows import IOPRIO_HIGH # NOQA + from ._pswindows import IOPRIO_LOW # NOQA + from ._pswindows import IOPRIO_NORMAL # NOQA + from ._pswindows import IOPRIO_VERYLOW # NOQA + +elif MACOS: + from . import _psosx as _psplatform + +elif BSD: + from . import _psbsd as _psplatform + +elif SUNOS: + from . import _pssunos as _psplatform + from ._pssunos import CONN_BOUND # NOQA + from ._pssunos import CONN_IDLE # NOQA + + # This is public writable API which is read from _pslinux.py and + # _pssunos.py via sys.modules. + PROCFS_PATH = "/proc" + +elif AIX: + from . import _psaix as _psplatform + + # This is public API and it will be retrieved from _pslinux.py + # via sys.modules. + PROCFS_PATH = "/proc" + +else: # pragma: no cover + raise NotImplementedError('platform %s is not supported' % sys.platform) + + +__all__ = [ + # exceptions + "Error", "NoSuchProcess", "ZombieProcess", "AccessDenied", + "TimeoutExpired", + + # constants + "version_info", "__version__", + + "STATUS_RUNNING", "STATUS_IDLE", "STATUS_SLEEPING", "STATUS_DISK_SLEEP", + "STATUS_STOPPED", "STATUS_TRACING_STOP", "STATUS_ZOMBIE", "STATUS_DEAD", + "STATUS_WAKING", "STATUS_LOCKED", "STATUS_WAITING", "STATUS_LOCKED", + "STATUS_PARKED", + + "CONN_ESTABLISHED", "CONN_SYN_SENT", "CONN_SYN_RECV", "CONN_FIN_WAIT1", + "CONN_FIN_WAIT2", "CONN_TIME_WAIT", "CONN_CLOSE", "CONN_CLOSE_WAIT", + "CONN_LAST_ACK", "CONN_LISTEN", "CONN_CLOSING", "CONN_NONE", + # "CONN_IDLE", "CONN_BOUND", + + "AF_LINK", + + "NIC_DUPLEX_FULL", "NIC_DUPLEX_HALF", "NIC_DUPLEX_UNKNOWN", + + "POWER_TIME_UNKNOWN", "POWER_TIME_UNLIMITED", + + "BSD", "FREEBSD", "LINUX", "NETBSD", "OPENBSD", "MACOS", "OSX", "POSIX", + "SUNOS", "WINDOWS", "AIX", + + # "RLIM_INFINITY", "RLIMIT_AS", "RLIMIT_CORE", "RLIMIT_CPU", "RLIMIT_DATA", + # "RLIMIT_FSIZE", "RLIMIT_LOCKS", "RLIMIT_MEMLOCK", "RLIMIT_NOFILE", + # "RLIMIT_NPROC", "RLIMIT_RSS", "RLIMIT_STACK", "RLIMIT_MSGQUEUE", + # "RLIMIT_NICE", "RLIMIT_RTPRIO", "RLIMIT_RTTIME", "RLIMIT_SIGPENDING", + + # classes + "Process", "Popen", + + # functions + "pid_exists", "pids", "process_iter", "wait_procs", # proc + "virtual_memory", "swap_memory", # memory + "cpu_times", "cpu_percent", "cpu_times_percent", "cpu_count", # cpu + "cpu_stats", # "cpu_freq", "getloadavg" + "net_io_counters", "net_connections", "net_if_addrs", # network + "net_if_stats", + "disk_io_counters", "disk_partitions", "disk_usage", # disk + # "sensors_temperatures", "sensors_battery", "sensors_fans" # sensors + "users", "boot_time", # others +] + + +__all__.extend(_psplatform.__extra__all__) + +# Linux, FreeBSD +if hasattr(_psplatform.Process, "rlimit"): + # Populate global namespace with RLIM* constants. + from . import _psutil_posix + + _globals = globals() + _name = None + for _name in dir(_psutil_posix): + if _name.startswith('RLIM') and _name.isupper(): + _globals[_name] = getattr(_psutil_posix, _name) + __all__.append(_name) + del _globals, _name + +AF_LINK = _psplatform.AF_LINK + +__author__ = "Giampaolo Rodola'" +__version__ = "5.9.4" +version_info = tuple([int(num) for num in __version__.split('.')]) + +_timer = getattr(time, 'monotonic', time.time) +_TOTAL_PHYMEM = None +_LOWEST_PID = None +_SENTINEL = object() + +# Sanity check in case the user messed up with psutil installation +# or did something weird with sys.path. In this case we might end +# up importing a python module using a C extension module which +# was compiled for a different version of psutil. +# We want to prevent that by failing sooner rather than later. +# See: https://github.com/giampaolo/psutil/issues/564 +if (int(__version__.replace('.', '')) != + getattr(_psplatform.cext, 'version', None)): + msg = "version conflict: %r C extension module was built for another " \ + "version of psutil" % _psplatform.cext.__file__ + if hasattr(_psplatform.cext, 'version'): + msg += " (%s instead of %s)" % ( + '.'.join([x for x in str(_psplatform.cext.version)]), __version__) + else: + msg += " (different than %s)" % __version__ + msg += "; you may try to 'pip uninstall psutil', manually remove %s" % ( + getattr(_psplatform.cext, "__file__", + "the existing psutil install directory")) + msg += " or clean the virtual env somehow, then reinstall" + raise ImportError(msg) + + +# ===================================================================== +# --- Utils +# ===================================================================== + + +if hasattr(_psplatform, 'ppid_map'): + # Faster version (Windows and Linux). + _ppid_map = _psplatform.ppid_map +else: # pragma: no cover + def _ppid_map(): + """Return a {pid: ppid, ...} dict for all running processes in + one shot. Used to speed up Process.children(). + """ + ret = {} + for pid in pids(): + try: + ret[pid] = _psplatform.Process(pid).ppid() + except (NoSuchProcess, ZombieProcess): + pass + return ret + + +def _assert_pid_not_reused(fun): + """Decorator which raises NoSuchProcess in case a process is no + longer running or its PID has been reused. + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + if not self.is_running(): + if self._pid_reused: + msg = "process no longer exists and its PID has been reused" + else: + msg = None + raise NoSuchProcess(self.pid, self._name, msg=msg) + return fun(self, *args, **kwargs) + return wrapper + + +def _pprint_secs(secs): + """Format seconds in a human readable form.""" + now = time.time() + secs_ago = int(now - secs) + if secs_ago < 60 * 60 * 24: + fmt = "%H:%M:%S" + else: + fmt = "%Y-%m-%d %H:%M:%S" + return datetime.datetime.fromtimestamp(secs).strftime(fmt) + + +# ===================================================================== +# --- Process class +# ===================================================================== + + +class Process(object): + """Represents an OS process with the given PID. + If PID is omitted current process PID (os.getpid()) is used. + Raise NoSuchProcess if PID does not exist. + + Note that most of the methods of this class do not make sure + the PID of the process being queried has been reused over time. + That means you might end up retrieving an information referring + to another process in case the original one this instance + refers to is gone in the meantime. + + The only exceptions for which process identity is pre-emptively + checked and guaranteed are: + + - parent() + - children() + - nice() (set) + - ionice() (set) + - rlimit() (set) + - cpu_affinity (set) + - suspend() + - resume() + - send_signal() + - terminate() + - kill() + + To prevent this problem for all other methods you can: + - use is_running() before querying the process + - if you're continuously iterating over a set of Process + instances use process_iter() which pre-emptively checks + process identity for every yielded instance + """ + + def __init__(self, pid=None): + self._init(pid) + + def _init(self, pid, _ignore_nsp=False): + if pid is None: + pid = os.getpid() + else: + if not _PY3 and not isinstance(pid, (int, long)): + raise TypeError('pid must be an integer (got %r)' % pid) + if pid < 0: + raise ValueError('pid must be a positive integer (got %s)' + % pid) + self._pid = pid + self._name = None + self._exe = None + self._create_time = None + self._gone = False + self._pid_reused = False + self._hash = None + self._lock = threading.RLock() + # used for caching on Windows only (on POSIX ppid may change) + self._ppid = None + # platform-specific modules define an _psplatform.Process + # implementation class + self._proc = _psplatform.Process(pid) + self._last_sys_cpu_times = None + self._last_proc_cpu_times = None + self._exitcode = _SENTINEL + # cache creation time for later use in is_running() method + try: + self.create_time() + except AccessDenied: + # We should never get here as AFAIK we're able to get + # process creation time on all platforms even as a + # limited user. + pass + except ZombieProcess: + # Zombies can still be queried by this class (although + # not always) and pids() return them so just go on. + pass + except NoSuchProcess: + if not _ignore_nsp: + raise NoSuchProcess(pid, msg='process PID not found') + else: + self._gone = True + # This pair is supposed to identify a Process instance + # univocally over time (the PID alone is not enough as + # it might refer to a process whose PID has been reused). + # This will be used later in __eq__() and is_running(). + self._ident = (self.pid, self._create_time) + + def __str__(self): + info = collections.OrderedDict() + info["pid"] = self.pid + if self._name: + info['name'] = self._name + with self.oneshot(): + try: + info["name"] = self.name() + info["status"] = self.status() + except ZombieProcess: + info["status"] = "zombie" + except NoSuchProcess: + info["status"] = "terminated" + except AccessDenied: + pass + if self._exitcode not in (_SENTINEL, None): + info["exitcode"] = self._exitcode + if self._create_time: + info['started'] = _pprint_secs(self._create_time) + return "%s.%s(%s)" % ( + self.__class__.__module__, + self.__class__.__name__, + ", ".join(["%s=%r" % (k, v) for k, v in info.items()])) + + __repr__ = __str__ + + def __eq__(self, other): + # Test for equality with another Process object based + # on PID and creation time. + if not isinstance(other, Process): + return NotImplemented + return self._ident == other._ident + + def __ne__(self, other): + return not self == other + + def __hash__(self): + if self._hash is None: + self._hash = hash(self._ident) + return self._hash + + @property + def pid(self): + """The process PID.""" + return self._pid + + # --- utility methods + + @contextlib.contextmanager + def oneshot(self): + """Utility context manager which considerably speeds up the + retrieval of multiple process information at the same time. + + Internally different process info (e.g. name, ppid, uids, + gids, ...) may be fetched by using the same routine, but + only one information is returned and the others are discarded. + When using this context manager the internal routine is + executed once (in the example below on name()) and the + other info are cached. + + The cache is cleared when exiting the context manager block. + The advice is to use this every time you retrieve more than + one information about the process. If you're lucky, you'll + get a hell of a speedup. + + >>> import psutil + >>> p = psutil.Process() + >>> with p.oneshot(): + ... p.name() # collect multiple info + ... p.cpu_times() # return cached value + ... p.cpu_percent() # return cached value + ... p.create_time() # return cached value + ... + >>> + """ + with self._lock: + if hasattr(self, "_cache"): + # NOOP: this covers the use case where the user enters the + # context twice: + # + # >>> with p.oneshot(): + # ... with p.oneshot(): + # ... + # + # Also, since as_dict() internally uses oneshot() + # I expect that the code below will be a pretty common + # "mistake" that the user will make, so let's guard + # against that: + # + # >>> with p.oneshot(): + # ... p.as_dict() + # ... + yield + else: + try: + # cached in case cpu_percent() is used + self.cpu_times.cache_activate(self) + # cached in case memory_percent() is used + self.memory_info.cache_activate(self) + # cached in case parent() is used + self.ppid.cache_activate(self) + # cached in case username() is used + if POSIX: + self.uids.cache_activate(self) + # specific implementation cache + self._proc.oneshot_enter() + yield + finally: + self.cpu_times.cache_deactivate(self) + self.memory_info.cache_deactivate(self) + self.ppid.cache_deactivate(self) + if POSIX: + self.uids.cache_deactivate(self) + self._proc.oneshot_exit() + + def as_dict(self, attrs=None, ad_value=None): + """Utility method returning process information as a + hashable dictionary. + If *attrs* is specified it must be a list of strings + reflecting available Process class' attribute names + (e.g. ['cpu_times', 'name']) else all public (read + only) attributes are assumed. + *ad_value* is the value which gets assigned in case + AccessDenied or ZombieProcess exception is raised when + retrieving that particular process information. + """ + valid_names = _as_dict_attrnames + if attrs is not None: + if not isinstance(attrs, (list, tuple, set, frozenset)): + raise TypeError("invalid attrs type %s" % type(attrs)) + attrs = set(attrs) + invalid_names = attrs - valid_names + if invalid_names: + raise ValueError("invalid attr name%s %s" % ( + "s" if len(invalid_names) > 1 else "", + ", ".join(map(repr, invalid_names)))) + + retdict = dict() + ls = attrs or valid_names + with self.oneshot(): + for name in ls: + try: + if name == 'pid': + ret = self.pid + else: + meth = getattr(self, name) + ret = meth() + except (AccessDenied, ZombieProcess): + ret = ad_value + except NotImplementedError: + # in case of not implemented functionality (may happen + # on old or exotic systems) we want to crash only if + # the user explicitly asked for that particular attr + if attrs: + raise + continue + retdict[name] = ret + return retdict + + def parent(self): + """Return the parent process as a Process object pre-emptively + checking whether PID has been reused. + If no parent is known return None. + """ + lowest_pid = _LOWEST_PID if _LOWEST_PID is not None else pids()[0] + if self.pid == lowest_pid: + return None + ppid = self.ppid() + if ppid is not None: + ctime = self.create_time() + try: + parent = Process(ppid) + if parent.create_time() <= ctime: + return parent + # ...else ppid has been reused by another process + except NoSuchProcess: + pass + + def parents(self): + """Return the parents of this process as a list of Process + instances. If no parents are known return an empty list. + """ + parents = [] + proc = self.parent() + while proc is not None: + parents.append(proc) + proc = proc.parent() + return parents + + def is_running(self): + """Return whether this process is running. + It also checks if PID has been reused by another process in + which case return False. + """ + if self._gone or self._pid_reused: + return False + try: + # Checking if PID is alive is not enough as the PID might + # have been reused by another process: we also want to + # verify process identity. + # Process identity / uniqueness over time is guaranteed by + # (PID + creation time) and that is verified in __eq__. + self._pid_reused = self != Process(self.pid) + return not self._pid_reused + except ZombieProcess: + # We should never get here as it's already handled in + # Process.__init__; here just for extra safety. + return True + except NoSuchProcess: + self._gone = True + return False + + # --- actual API + + @memoize_when_activated + def ppid(self): + """The process parent PID. + On Windows the return value is cached after first call. + """ + # On POSIX we don't want to cache the ppid as it may unexpectedly + # change to 1 (init) in case this process turns into a zombie: + # https://github.com/giampaolo/psutil/issues/321 + # http://stackoverflow.com/questions/356722/ + + # XXX should we check creation time here rather than in + # Process.parent()? + if POSIX: + return self._proc.ppid() + else: # pragma: no cover + self._ppid = self._ppid or self._proc.ppid() + return self._ppid + + def name(self): + """The process name. The return value is cached after first call.""" + # Process name is only cached on Windows as on POSIX it may + # change, see: + # https://github.com/giampaolo/psutil/issues/692 + if WINDOWS and self._name is not None: + return self._name + name = self._proc.name() + if POSIX and len(name) >= 15: + # On UNIX the name gets truncated to the first 15 characters. + # If it matches the first part of the cmdline we return that + # one instead because it's usually more explicative. + # Examples are "gnome-keyring-d" vs. "gnome-keyring-daemon". + try: + cmdline = self.cmdline() + except AccessDenied: + pass + else: + if cmdline: + extended_name = os.path.basename(cmdline[0]) + if extended_name.startswith(name): + name = extended_name + self._name = name + self._proc._name = name + return name + + def exe(self): + """The process executable as an absolute path. + May also be an empty string. + The return value is cached after first call. + """ + def guess_it(fallback): + # try to guess exe from cmdline[0] in absence of a native + # exe representation + cmdline = self.cmdline() + if cmdline and hasattr(os, 'access') and hasattr(os, 'X_OK'): + exe = cmdline[0] # the possible exe + # Attempt to guess only in case of an absolute path. + # It is not safe otherwise as the process might have + # changed cwd. + if (os.path.isabs(exe) and + os.path.isfile(exe) and + os.access(exe, os.X_OK)): + return exe + if isinstance(fallback, AccessDenied): + raise fallback + return fallback + + if self._exe is None: + try: + exe = self._proc.exe() + except AccessDenied as err: + return guess_it(fallback=err) + else: + if not exe: + # underlying implementation can legitimately return an + # empty string; if that's the case we don't want to + # raise AD while guessing from the cmdline + try: + exe = guess_it(fallback=exe) + except AccessDenied: + pass + self._exe = exe + return self._exe + + def cmdline(self): + """The command line this process has been called with.""" + return self._proc.cmdline() + + def status(self): + """The process current status as a STATUS_* constant.""" + try: + return self._proc.status() + except ZombieProcess: + return STATUS_ZOMBIE + + def username(self): + """The name of the user that owns the process. + On UNIX this is calculated by using *real* process uid. + """ + if POSIX: + if pwd is None: + # might happen if python was installed from sources + raise ImportError( + "requires pwd module shipped with standard python") + real_uid = self.uids().real + try: + return pwd.getpwuid(real_uid).pw_name + except KeyError: + # the uid can't be resolved by the system + return str(real_uid) + else: + return self._proc.username() + + def create_time(self): + """The process creation time as a floating point number + expressed in seconds since the epoch. + The return value is cached after first call. + """ + if self._create_time is None: + self._create_time = self._proc.create_time() + return self._create_time + + def cwd(self): + """Process current working directory as an absolute path.""" + return self._proc.cwd() + + def nice(self, value=None): + """Get or set process niceness (priority).""" + if value is None: + return self._proc.nice_get() + else: + if not self.is_running(): + raise NoSuchProcess(self.pid, self._name) + self._proc.nice_set(value) + + if POSIX: + + @memoize_when_activated + def uids(self): + """Return process UIDs as a (real, effective, saved) + namedtuple. + """ + return self._proc.uids() + + def gids(self): + """Return process GIDs as a (real, effective, saved) + namedtuple. + """ + return self._proc.gids() + + def terminal(self): + """The terminal associated with this process, if any, + else None. + """ + return self._proc.terminal() + + def num_fds(self): + """Return the number of file descriptors opened by this + process (POSIX only). + """ + return self._proc.num_fds() + + # Linux, BSD, AIX and Windows only + if hasattr(_psplatform.Process, "io_counters"): + + def io_counters(self): + """Return process I/O statistics as a + (read_count, write_count, read_bytes, write_bytes) + namedtuple. + Those are the number of read/write calls performed and the + amount of bytes read and written by the process. + """ + return self._proc.io_counters() + + # Linux and Windows + if hasattr(_psplatform.Process, "ionice_get"): + + def ionice(self, ioclass=None, value=None): + """Get or set process I/O niceness (priority). + + On Linux *ioclass* is one of the IOPRIO_CLASS_* constants. + *value* is a number which goes from 0 to 7. The higher the + value, the lower the I/O priority of the process. + + On Windows only *ioclass* is used and it can be set to 2 + (normal), 1 (low) or 0 (very low). + + Available on Linux and Windows > Vista only. + """ + if ioclass is None: + if value is not None: + raise ValueError("'ioclass' argument must be specified") + return self._proc.ionice_get() + else: + return self._proc.ionice_set(ioclass, value) + + # Linux / FreeBSD only + if hasattr(_psplatform.Process, "rlimit"): + + def rlimit(self, resource, limits=None): + """Get or set process resource limits as a (soft, hard) + tuple. + + *resource* is one of the RLIMIT_* constants. + *limits* is supposed to be a (soft, hard) tuple. + + See "man prlimit" for further info. + Available on Linux and FreeBSD only. + """ + return self._proc.rlimit(resource, limits) + + # Windows, Linux and FreeBSD only + if hasattr(_psplatform.Process, "cpu_affinity_get"): + + def cpu_affinity(self, cpus=None): + """Get or set process CPU affinity. + If specified, *cpus* must be a list of CPUs for which you + want to set the affinity (e.g. [0, 1]). + If an empty list is passed, all egible CPUs are assumed + (and set). + (Windows, Linux and BSD only). + """ + if cpus is None: + return sorted(set(self._proc.cpu_affinity_get())) + else: + if not cpus: + if hasattr(self._proc, "_get_eligible_cpus"): + cpus = self._proc._get_eligible_cpus() + else: + cpus = tuple(range(len(cpu_times(percpu=True)))) + self._proc.cpu_affinity_set(list(set(cpus))) + + # Linux, FreeBSD, SunOS + if hasattr(_psplatform.Process, "cpu_num"): + + def cpu_num(self): + """Return what CPU this process is currently running on. + The returned number should be <= psutil.cpu_count() + and <= len(psutil.cpu_percent(percpu=True)). + It may be used in conjunction with + psutil.cpu_percent(percpu=True) to observe the system + workload distributed across CPUs. + """ + return self._proc.cpu_num() + + # All platforms has it, but maybe not in the future. + if hasattr(_psplatform.Process, "environ"): + + def environ(self): + """The environment variables of the process as a dict. Note: this + might not reflect changes made after the process started. """ + return self._proc.environ() + + if WINDOWS: + + def num_handles(self): + """Return the number of handles opened by this process + (Windows only). + """ + return self._proc.num_handles() + + def num_ctx_switches(self): + """Return the number of voluntary and involuntary context + switches performed by this process. + """ + return self._proc.num_ctx_switches() + + def num_threads(self): + """Return the number of threads used by this process.""" + return self._proc.num_threads() + + if hasattr(_psplatform.Process, "threads"): + + def threads(self): + """Return threads opened by process as a list of + (id, user_time, system_time) namedtuples representing + thread id and thread CPU times (user/system). + On OpenBSD this method requires root access. + """ + return self._proc.threads() + + @_assert_pid_not_reused + def children(self, recursive=False): + """Return the children of this process as a list of Process + instances, pre-emptively checking whether PID has been reused. + If *recursive* is True return all the parent descendants. + + Example (A == this process): + + A ─┐ + │ + ├─ B (child) ─┐ + │ └─ X (grandchild) ─┐ + │ └─ Y (great grandchild) + ├─ C (child) + └─ D (child) + + >>> import psutil + >>> p = psutil.Process() + >>> p.children() + B, C, D + >>> p.children(recursive=True) + B, X, Y, C, D + + Note that in the example above if process X disappears + process Y won't be listed as the reference to process A + is lost. + """ + ppid_map = _ppid_map() + ret = [] + if not recursive: + for pid, ppid in ppid_map.items(): + if ppid == self.pid: + try: + child = Process(pid) + # if child happens to be older than its parent + # (self) it means child's PID has been reused + if self.create_time() <= child.create_time(): + ret.append(child) + except (NoSuchProcess, ZombieProcess): + pass + else: + # Construct a {pid: [child pids]} dict + reverse_ppid_map = collections.defaultdict(list) + for pid, ppid in ppid_map.items(): + reverse_ppid_map[ppid].append(pid) + # Recursively traverse that dict, starting from self.pid, + # such that we only call Process() on actual children + seen = set() + stack = [self.pid] + while stack: + pid = stack.pop() + if pid in seen: + # Since pids can be reused while the ppid_map is + # constructed, there may be rare instances where + # there's a cycle in the recorded process "tree". + continue + seen.add(pid) + for child_pid in reverse_ppid_map[pid]: + try: + child = Process(child_pid) + # if child happens to be older than its parent + # (self) it means child's PID has been reused + intime = self.create_time() <= child.create_time() + if intime: + ret.append(child) + stack.append(child_pid) + except (NoSuchProcess, ZombieProcess): + pass + return ret + + def cpu_percent(self, interval=None): + """Return a float representing the current process CPU + utilization as a percentage. + + When *interval* is 0.0 or None (default) compares process times + to system CPU times elapsed since last call, returning + immediately (non-blocking). That means that the first time + this is called it will return a meaningful 0.0 value. + + When *interval* is > 0.0 compares process times to system CPU + times elapsed before and after the interval (blocking). + + In this case is recommended for accuracy that this function + be called with at least 0.1 seconds between calls. + + A value > 100.0 can be returned in case of processes running + multiple threads on different CPU cores. + + The returned value is explicitly NOT split evenly between + all available logical CPUs. This means that a busy loop process + running on a system with 2 logical CPUs will be reported as + having 100% CPU utilization instead of 50%. + + Examples: + + >>> import psutil + >>> p = psutil.Process(os.getpid()) + >>> # blocking + >>> p.cpu_percent(interval=1) + 2.0 + >>> # non-blocking (percentage since last call) + >>> p.cpu_percent(interval=None) + 2.9 + >>> + """ + blocking = interval is not None and interval > 0.0 + if interval is not None and interval < 0: + raise ValueError("interval is not positive (got %r)" % interval) + num_cpus = cpu_count() or 1 + + def timer(): + return _timer() * num_cpus + + if blocking: + st1 = timer() + pt1 = self._proc.cpu_times() + time.sleep(interval) + st2 = timer() + pt2 = self._proc.cpu_times() + else: + st1 = self._last_sys_cpu_times + pt1 = self._last_proc_cpu_times + st2 = timer() + pt2 = self._proc.cpu_times() + if st1 is None or pt1 is None: + self._last_sys_cpu_times = st2 + self._last_proc_cpu_times = pt2 + return 0.0 + + delta_proc = (pt2.user - pt1.user) + (pt2.system - pt1.system) + delta_time = st2 - st1 + # reset values for next call in case of interval == None + self._last_sys_cpu_times = st2 + self._last_proc_cpu_times = pt2 + + try: + # This is the utilization split evenly between all CPUs. + # E.g. a busy loop process on a 2-CPU-cores system at this + # point is reported as 50% instead of 100%. + overall_cpus_percent = ((delta_proc / delta_time) * 100) + except ZeroDivisionError: + # interval was too low + return 0.0 + else: + # Note 1: + # in order to emulate "top" we multiply the value for the num + # of CPU cores. This way the busy process will be reported as + # having 100% (or more) usage. + # + # Note 2: + # taskmgr.exe on Windows differs in that it will show 50% + # instead. + # + # Note 3: + # a percentage > 100 is legitimate as it can result from a + # process with multiple threads running on different CPU + # cores (top does the same), see: + # http://stackoverflow.com/questions/1032357 + # https://github.com/giampaolo/psutil/issues/474 + single_cpu_percent = overall_cpus_percent * num_cpus + return round(single_cpu_percent, 1) + + @memoize_when_activated + def cpu_times(self): + """Return a (user, system, children_user, children_system) + namedtuple representing the accumulated process time, in + seconds. + This is similar to os.times() but per-process. + On macOS and Windows children_user and children_system are + always set to 0. + """ + return self._proc.cpu_times() + + @memoize_when_activated + def memory_info(self): + """Return a namedtuple with variable fields depending on the + platform, representing memory information about the process. + + The "portable" fields available on all platforms are `rss` and `vms`. + + All numbers are expressed in bytes. + """ + return self._proc.memory_info() + + @_common.deprecated_method(replacement="memory_info") + def memory_info_ex(self): + return self.memory_info() + + def memory_full_info(self): + """This method returns the same information as memory_info(), + plus, on some platform (Linux, macOS, Windows), also provides + additional metrics (USS, PSS and swap). + The additional metrics provide a better representation of actual + process memory usage. + + Namely USS is the memory which is unique to a process and which + would be freed if the process was terminated right now. + + It does so by passing through the whole process address. + As such it usually requires higher user privileges than + memory_info() and is considerably slower. + """ + return self._proc.memory_full_info() + + def memory_percent(self, memtype="rss"): + """Compare process memory to total physical system memory and + calculate process memory utilization as a percentage. + *memtype* argument is a string that dictates what type of + process memory you want to compare against (defaults to "rss"). + The list of available strings can be obtained like this: + + >>> psutil.Process().memory_info()._fields + ('rss', 'vms', 'shared', 'text', 'lib', 'data', 'dirty', 'uss', 'pss') + """ + valid_types = list(_psplatform.pfullmem._fields) + if memtype not in valid_types: + raise ValueError("invalid memtype %r; valid types are %r" % ( + memtype, tuple(valid_types))) + fun = self.memory_info if memtype in _psplatform.pmem._fields else \ + self.memory_full_info + metrics = fun() + value = getattr(metrics, memtype) + + # use cached value if available + total_phymem = _TOTAL_PHYMEM or virtual_memory().total + if not total_phymem > 0: + # we should never get here + raise ValueError( + "can't calculate process memory percent because " + "total physical system memory is not positive (%r)" + % total_phymem) + return (value / float(total_phymem)) * 100 + + if hasattr(_psplatform.Process, "memory_maps"): + def memory_maps(self, grouped=True): + """Return process' mapped memory regions as a list of namedtuples + whose fields are variable depending on the platform. + + If *grouped* is True the mapped regions with the same 'path' + are grouped together and the different memory fields are summed. + + If *grouped* is False every mapped region is shown as a single + entity and the namedtuple will also include the mapped region's + address space ('addr') and permission set ('perms'). + """ + it = self._proc.memory_maps() + if grouped: + d = {} + for tupl in it: + path = tupl[2] + nums = tupl[3:] + try: + d[path] = map(lambda x, y: x + y, d[path], nums) + except KeyError: + d[path] = nums + nt = _psplatform.pmmap_grouped + return [nt(path, *d[path]) for path in d] # NOQA + else: + nt = _psplatform.pmmap_ext + return [nt(*x) for x in it] + + def open_files(self): + """Return files opened by process as a list of + (path, fd) namedtuples including the absolute file name + and file descriptor number. + """ + return self._proc.open_files() + + def connections(self, kind='inet'): + """Return socket connections opened by process as a list of + (fd, family, type, laddr, raddr, status) namedtuples. + The *kind* parameter filters for connections that match the + following criteria: + + +------------+----------------------------------------------------+ + | Kind Value | Connections using | + +------------+----------------------------------------------------+ + | inet | IPv4 and IPv6 | + | inet4 | IPv4 | + | inet6 | IPv6 | + | tcp | TCP | + | tcp4 | TCP over IPv4 | + | tcp6 | TCP over IPv6 | + | udp | UDP | + | udp4 | UDP over IPv4 | + | udp6 | UDP over IPv6 | + | unix | UNIX socket (both UDP and TCP protocols) | + | all | the sum of all the possible families and protocols | + +------------+----------------------------------------------------+ + """ + return self._proc.connections(kind) + + # --- signals + + if POSIX: + def _send_signal(self, sig): + assert not self.pid < 0, self.pid + if self.pid == 0: + # see "man 2 kill" + raise ValueError( + "preventing sending signal to process with PID 0 as it " + "would affect every process in the process group of the " + "calling process (os.getpid()) instead of PID 0") + try: + os.kill(self.pid, sig) + except ProcessLookupError: + if OPENBSD and pid_exists(self.pid): + # We do this because os.kill() lies in case of + # zombie processes. + raise ZombieProcess(self.pid, self._name, self._ppid) + else: + self._gone = True + raise NoSuchProcess(self.pid, self._name) + except PermissionError: + raise AccessDenied(self.pid, self._name) + + @_assert_pid_not_reused + def send_signal(self, sig): + """Send a signal *sig* to process pre-emptively checking + whether PID has been reused (see signal module constants) . + On Windows only SIGTERM is valid and is treated as an alias + for kill(). + """ + if POSIX: + self._send_signal(sig) + else: # pragma: no cover + self._proc.send_signal(sig) + + @_assert_pid_not_reused + def suspend(self): + """Suspend process execution with SIGSTOP pre-emptively checking + whether PID has been reused. + On Windows this has the effect of suspending all process threads. + """ + if POSIX: + self._send_signal(signal.SIGSTOP) + else: # pragma: no cover + self._proc.suspend() + + @_assert_pid_not_reused + def resume(self): + """Resume process execution with SIGCONT pre-emptively checking + whether PID has been reused. + On Windows this has the effect of resuming all process threads. + """ + if POSIX: + self._send_signal(signal.SIGCONT) + else: # pragma: no cover + self._proc.resume() + + @_assert_pid_not_reused + def terminate(self): + """Terminate the process with SIGTERM pre-emptively checking + whether PID has been reused. + On Windows this is an alias for kill(). + """ + if POSIX: + self._send_signal(signal.SIGTERM) + else: # pragma: no cover + self._proc.kill() + + @_assert_pid_not_reused + def kill(self): + """Kill the current process with SIGKILL pre-emptively checking + whether PID has been reused. + """ + if POSIX: + self._send_signal(signal.SIGKILL) + else: # pragma: no cover + self._proc.kill() + + def wait(self, timeout=None): + """Wait for process to terminate and, if process is a children + of os.getpid(), also return its exit code, else None. + On Windows there's no such limitation (exit code is always + returned). + + If the process is already terminated immediately return None + instead of raising NoSuchProcess. + + If *timeout* (in seconds) is specified and process is still + alive raise TimeoutExpired. + + To wait for multiple Process(es) use psutil.wait_procs(). + """ + if timeout is not None and not timeout >= 0: + raise ValueError("timeout must be a positive integer") + if self._exitcode is not _SENTINEL: + return self._exitcode + self._exitcode = self._proc.wait(timeout) + return self._exitcode + + +# The valid attr names which can be processed by Process.as_dict(). +_as_dict_attrnames = set( + [x for x in dir(Process) if not x.startswith('_') and x not in + ['send_signal', 'suspend', 'resume', 'terminate', 'kill', 'wait', + 'is_running', 'as_dict', 'parent', 'parents', 'children', 'rlimit', + 'memory_info_ex', 'oneshot']]) + + +# ===================================================================== +# --- Popen class +# ===================================================================== + + +class Popen(Process): + """Same as subprocess.Popen, but in addition it provides all + psutil.Process methods in a single class. + For the following methods which are common to both classes, psutil + implementation takes precedence: + + * send_signal() + * terminate() + * kill() + + This is done in order to avoid killing another process in case its + PID has been reused, fixing BPO-6973. + + >>> import psutil + >>> from subprocess import PIPE + >>> p = psutil.Popen(["python", "-c", "print 'hi'"], stdout=PIPE) + >>> p.name() + 'python' + >>> p.uids() + user(real=1000, effective=1000, saved=1000) + >>> p.username() + 'giampaolo' + >>> p.communicate() + ('hi\n', None) + >>> p.terminate() + >>> p.wait(timeout=2) + 0 + >>> + """ + + def __init__(self, *args, **kwargs): + # Explicitly avoid to raise NoSuchProcess in case the process + # spawned by subprocess.Popen terminates too quickly, see: + # https://github.com/giampaolo/psutil/issues/193 + self.__subproc = subprocess.Popen(*args, **kwargs) + self._init(self.__subproc.pid, _ignore_nsp=True) + + def __dir__(self): + return sorted(set(dir(Popen) + dir(subprocess.Popen))) + + def __enter__(self): + if hasattr(self.__subproc, '__enter__'): + self.__subproc.__enter__() + return self + + def __exit__(self, *args, **kwargs): + if hasattr(self.__subproc, '__exit__'): + return self.__subproc.__exit__(*args, **kwargs) + else: + if self.stdout: + self.stdout.close() + if self.stderr: + self.stderr.close() + try: + # Flushing a BufferedWriter may raise an error. + if self.stdin: + self.stdin.close() + finally: + # Wait for the process to terminate, to avoid zombies. + self.wait() + + def __getattribute__(self, name): + try: + return object.__getattribute__(self, name) + except AttributeError: + try: + return object.__getattribute__(self.__subproc, name) + except AttributeError: + raise AttributeError("%s instance has no attribute '%s'" + % (self.__class__.__name__, name)) + + def wait(self, timeout=None): + if self.__subproc.returncode is not None: + return self.__subproc.returncode + ret = super(Popen, self).wait(timeout) + self.__subproc.returncode = ret + return ret + + +# ===================================================================== +# --- system processes related functions +# ===================================================================== + + +def pids(): + """Return a list of current running PIDs.""" + global _LOWEST_PID + ret = sorted(_psplatform.pids()) + _LOWEST_PID = ret[0] + return ret + + +def pid_exists(pid): + """Return True if given PID exists in the current process list. + This is faster than doing "pid in psutil.pids()" and + should be preferred. + """ + if pid < 0: + return False + elif pid == 0 and POSIX: + # On POSIX we use os.kill() to determine PID existence. + # According to "man 2 kill" PID 0 has a special meaning + # though: it refers to <<every process in the process + # group of the calling process>> and that is not we want + # to do here. + return pid in pids() + else: + return _psplatform.pid_exists(pid) + + +_pmap = {} + + +def process_iter(attrs=None, ad_value=None): + """Return a generator yielding a Process instance for all + running processes. + + Every new Process instance is only created once and then cached + into an internal table which is updated every time this is used. + + Cached Process instances are checked for identity so that you're + safe in case a PID has been reused by another process, in which + case the cached instance is updated. + + The sorting order in which processes are yielded is based on + their PIDs. + + *attrs* and *ad_value* have the same meaning as in + Process.as_dict(). If *attrs* is specified as_dict() is called + and the resulting dict is stored as a 'info' attribute attached + to returned Process instance. + If *attrs* is an empty list it will retrieve all process info + (slow). + """ + global _pmap + + def add(pid): + proc = Process(pid) + if attrs is not None: + proc.info = proc.as_dict(attrs=attrs, ad_value=ad_value) + pmap[proc.pid] = proc + return proc + + def remove(pid): + pmap.pop(pid, None) + + pmap = _pmap.copy() + a = set(pids()) + b = set(pmap.keys()) + new_pids = a - b + gone_pids = b - a + for pid in gone_pids: + remove(pid) + try: + ls = sorted(list(pmap.items()) + list(dict.fromkeys(new_pids).items())) + for pid, proc in ls: + try: + if proc is None: # new process + yield add(pid) + else: + # use is_running() to check whether PID has been + # reused by another process in which case yield a + # new Process instance + if proc.is_running(): + if attrs is not None: + proc.info = proc.as_dict( + attrs=attrs, ad_value=ad_value) + yield proc + else: + yield add(pid) + except NoSuchProcess: + remove(pid) + except AccessDenied: + # Process creation time can't be determined hence there's + # no way to tell whether the pid of the cached process + # has been reused. Just return the cached version. + if proc is None and pid in pmap: + try: + yield pmap[pid] + except KeyError: + # If we get here it is likely that 2 threads were + # using process_iter(). + pass + else: + raise + finally: + _pmap = pmap + + +def wait_procs(procs, timeout=None, callback=None): + """Convenience function which waits for a list of processes to + terminate. + + Return a (gone, alive) tuple indicating which processes + are gone and which ones are still alive. + + The gone ones will have a new *returncode* attribute indicating + process exit status (may be None). + + *callback* is a function which gets called every time a process + terminates (a Process instance is passed as callback argument). + + Function will return as soon as all processes terminate or when + *timeout* occurs. + Differently from Process.wait() it will not raise TimeoutExpired if + *timeout* occurs. + + Typical use case is: + + - send SIGTERM to a list of processes + - give them some time to terminate + - send SIGKILL to those ones which are still alive + + Example: + + >>> def on_terminate(proc): + ... print("process {} terminated".format(proc)) + ... + >>> for p in procs: + ... p.terminate() + ... + >>> gone, alive = wait_procs(procs, timeout=3, callback=on_terminate) + >>> for p in alive: + ... p.kill() + """ + def check_gone(proc, timeout): + try: + returncode = proc.wait(timeout=timeout) + except TimeoutExpired: + pass + except _SubprocessTimeoutExpired: + pass + else: + if returncode is not None or not proc.is_running(): + # Set new Process instance attribute. + proc.returncode = returncode + gone.add(proc) + if callback is not None: + callback(proc) + + if timeout is not None and not timeout >= 0: + msg = "timeout must be a positive integer, got %s" % timeout + raise ValueError(msg) + gone = set() + alive = set(procs) + if callback is not None and not callable(callback): + raise TypeError("callback %r is not a callable" % callable) + if timeout is not None: + deadline = _timer() + timeout + + while alive: + if timeout is not None and timeout <= 0: + break + for proc in alive: + # Make sure that every complete iteration (all processes) + # will last max 1 sec. + # We do this because we don't want to wait too long on a + # single process: in case it terminates too late other + # processes may disappear in the meantime and their PID + # reused. + max_timeout = 1.0 / len(alive) + if timeout is not None: + timeout = min((deadline - _timer()), max_timeout) + if timeout <= 0: + break + check_gone(proc, timeout) + else: + check_gone(proc, max_timeout) + alive = alive - gone + + if alive: + # Last attempt over processes survived so far. + # timeout == 0 won't make this function wait any further. + for proc in alive: + check_gone(proc, 0) + alive = alive - gone + + return (list(gone), list(alive)) + + +# ===================================================================== +# --- CPU related functions +# ===================================================================== + + +def cpu_count(logical=True): + """Return the number of logical CPUs in the system (same as + os.cpu_count() in Python 3.4). + + If *logical* is False return the number of physical cores only + (e.g. hyper thread CPUs are excluded). + + Return None if undetermined. + + The return value is cached after first call. + If desired cache can be cleared like this: + + >>> psutil.cpu_count.cache_clear() + """ + if logical: + ret = _psplatform.cpu_count_logical() + else: + ret = _psplatform.cpu_count_cores() + if ret is not None and ret < 1: + ret = None + return ret + + +def cpu_times(percpu=False): + """Return system-wide CPU times as a namedtuple. + Every CPU time represents the seconds the CPU has spent in the + given mode. The namedtuple's fields availability varies depending on the + platform: + + - user + - system + - idle + - nice (UNIX) + - iowait (Linux) + - irq (Linux, FreeBSD) + - softirq (Linux) + - steal (Linux >= 2.6.11) + - guest (Linux >= 2.6.24) + - guest_nice (Linux >= 3.2.0) + + When *percpu* is True return a list of namedtuples for each CPU. + First element of the list refers to first CPU, second element + to second CPU and so on. + The order of the list is consistent across calls. + """ + if not percpu: + return _psplatform.cpu_times() + else: + return _psplatform.per_cpu_times() + + +try: + _last_cpu_times = cpu_times() +except Exception: + # Don't want to crash at import time. + _last_cpu_times = None + +try: + _last_per_cpu_times = cpu_times(percpu=True) +except Exception: + # Don't want to crash at import time. + _last_per_cpu_times = None + + +def _cpu_tot_time(times): + """Given a cpu_time() ntuple calculates the total CPU time + (including idle time). + """ + tot = sum(times) + if LINUX: + # On Linux guest times are already accounted in "user" or + # "nice" times, so we subtract them from total. + # Htop does the same. References: + # https://github.com/giampaolo/psutil/pull/940 + # http://unix.stackexchange.com/questions/178045 + # https://github.com/torvalds/linux/blob/ + # 447976ef4fd09b1be88b316d1a81553f1aa7cd07/kernel/sched/ + # cputime.c#L158 + tot -= getattr(times, "guest", 0) # Linux 2.6.24+ + tot -= getattr(times, "guest_nice", 0) # Linux 3.2.0+ + return tot + + +def _cpu_busy_time(times): + """Given a cpu_time() ntuple calculates the busy CPU time. + We do so by subtracting all idle CPU times. + """ + busy = _cpu_tot_time(times) + busy -= times.idle + # Linux: "iowait" is time during which the CPU does not do anything + # (waits for IO to complete). On Linux IO wait is *not* accounted + # in "idle" time so we subtract it. Htop does the same. + # References: + # https://github.com/torvalds/linux/blob/ + # 447976ef4fd09b1be88b316d1a81553f1aa7cd07/kernel/sched/cputime.c#L244 + busy -= getattr(times, "iowait", 0) + return busy + + +def _cpu_times_deltas(t1, t2): + assert t1._fields == t2._fields, (t1, t2) + field_deltas = [] + for field in _psplatform.scputimes._fields: + field_delta = getattr(t2, field) - getattr(t1, field) + # CPU times are always supposed to increase over time + # or at least remain the same and that's because time + # cannot go backwards. + # Surprisingly sometimes this might not be the case (at + # least on Windows and Linux), see: + # https://github.com/giampaolo/psutil/issues/392 + # https://github.com/giampaolo/psutil/issues/645 + # https://github.com/giampaolo/psutil/issues/1210 + # Trim negative deltas to zero to ignore decreasing fields. + # top does the same. Reference: + # https://gitlab.com/procps-ng/procps/blob/v3.3.12/top/top.c#L5063 + field_delta = max(0, field_delta) + field_deltas.append(field_delta) + return _psplatform.scputimes(*field_deltas) + + +def cpu_percent(interval=None, percpu=False): + """Return a float representing the current system-wide CPU + utilization as a percentage. + + When *interval* is > 0.0 compares system CPU times elapsed before + and after the interval (blocking). + + When *interval* is 0.0 or None compares system CPU times elapsed + since last call or module import, returning immediately (non + blocking). That means the first time this is called it will + return a meaningless 0.0 value which you should ignore. + In this case is recommended for accuracy that this function be + called with at least 0.1 seconds between calls. + + When *percpu* is True returns a list of floats representing the + utilization as a percentage for each CPU. + First element of the list refers to first CPU, second element + to second CPU and so on. + The order of the list is consistent across calls. + + Examples: + + >>> # blocking, system-wide + >>> psutil.cpu_percent(interval=1) + 2.0 + >>> + >>> # blocking, per-cpu + >>> psutil.cpu_percent(interval=1, percpu=True) + [2.0, 1.0] + >>> + >>> # non-blocking (percentage since last call) + >>> psutil.cpu_percent(interval=None) + 2.9 + >>> + """ + global _last_cpu_times + global _last_per_cpu_times + blocking = interval is not None and interval > 0.0 + if interval is not None and interval < 0: + raise ValueError("interval is not positive (got %r)" % interval) + + def calculate(t1, t2): + times_delta = _cpu_times_deltas(t1, t2) + all_delta = _cpu_tot_time(times_delta) + busy_delta = _cpu_busy_time(times_delta) + + try: + busy_perc = (busy_delta / all_delta) * 100 + except ZeroDivisionError: + return 0.0 + else: + return round(busy_perc, 1) + + # system-wide usage + if not percpu: + if blocking: + t1 = cpu_times() + time.sleep(interval) + else: + t1 = _last_cpu_times + if t1 is None: + # Something bad happened at import time. We'll + # get a meaningful result on the next call. See: + # https://github.com/giampaolo/psutil/pull/715 + t1 = cpu_times() + _last_cpu_times = cpu_times() + return calculate(t1, _last_cpu_times) + # per-cpu usage + else: + ret = [] + if blocking: + tot1 = cpu_times(percpu=True) + time.sleep(interval) + else: + tot1 = _last_per_cpu_times + if tot1 is None: + # Something bad happened at import time. We'll + # get a meaningful result on the next call. See: + # https://github.com/giampaolo/psutil/pull/715 + tot1 = cpu_times(percpu=True) + _last_per_cpu_times = cpu_times(percpu=True) + for t1, t2 in zip(tot1, _last_per_cpu_times): + ret.append(calculate(t1, t2)) + return ret + + +# Use separate global vars for cpu_times_percent() so that it's +# independent from cpu_percent() and they can both be used within +# the same program. +_last_cpu_times_2 = _last_cpu_times +_last_per_cpu_times_2 = _last_per_cpu_times + + +def cpu_times_percent(interval=None, percpu=False): + """Same as cpu_percent() but provides utilization percentages + for each specific CPU time as is returned by cpu_times(). + For instance, on Linux we'll get: + + >>> cpu_times_percent() + cpupercent(user=4.8, nice=0.0, system=4.8, idle=90.5, iowait=0.0, + irq=0.0, softirq=0.0, steal=0.0, guest=0.0, guest_nice=0.0) + >>> + + *interval* and *percpu* arguments have the same meaning as in + cpu_percent(). + """ + global _last_cpu_times_2 + global _last_per_cpu_times_2 + blocking = interval is not None and interval > 0.0 + if interval is not None and interval < 0: + raise ValueError("interval is not positive (got %r)" % interval) + + def calculate(t1, t2): + nums = [] + times_delta = _cpu_times_deltas(t1, t2) + all_delta = _cpu_tot_time(times_delta) + # "scale" is the value to multiply each delta with to get percentages. + # We use "max" to avoid division by zero (if all_delta is 0, then all + # fields are 0 so percentages will be 0 too. all_delta cannot be a + # fraction because cpu times are integers) + scale = 100.0 / max(1, all_delta) + for field_delta in times_delta: + field_perc = field_delta * scale + field_perc = round(field_perc, 1) + # make sure we don't return negative values or values over 100% + field_perc = min(max(0.0, field_perc), 100.0) + nums.append(field_perc) + return _psplatform.scputimes(*nums) + + # system-wide usage + if not percpu: + if blocking: + t1 = cpu_times() + time.sleep(interval) + else: + t1 = _last_cpu_times_2 + if t1 is None: + # Something bad happened at import time. We'll + # get a meaningful result on the next call. See: + # https://github.com/giampaolo/psutil/pull/715 + t1 = cpu_times() + _last_cpu_times_2 = cpu_times() + return calculate(t1, _last_cpu_times_2) + # per-cpu usage + else: + ret = [] + if blocking: + tot1 = cpu_times(percpu=True) + time.sleep(interval) + else: + tot1 = _last_per_cpu_times_2 + if tot1 is None: + # Something bad happened at import time. We'll + # get a meaningful result on the next call. See: + # https://github.com/giampaolo/psutil/pull/715 + tot1 = cpu_times(percpu=True) + _last_per_cpu_times_2 = cpu_times(percpu=True) + for t1, t2 in zip(tot1, _last_per_cpu_times_2): + ret.append(calculate(t1, t2)) + return ret + + +def cpu_stats(): + """Return CPU statistics.""" + return _psplatform.cpu_stats() + + +if hasattr(_psplatform, "cpu_freq"): + + def cpu_freq(percpu=False): + """Return CPU frequency as a namedtuple including current, + min and max frequency expressed in Mhz. + + If *percpu* is True and the system supports per-cpu frequency + retrieval (Linux only) a list of frequencies is returned for + each CPU. If not a list with one element is returned. + """ + ret = _psplatform.cpu_freq() + if percpu: + return ret + else: + num_cpus = float(len(ret)) + if num_cpus == 0: + return None + elif num_cpus == 1: + return ret[0] + else: + currs, mins, maxs = 0.0, 0.0, 0.0 + set_none = False + for cpu in ret: + currs += cpu.current + # On Linux if /proc/cpuinfo is used min/max are set + # to None. + if LINUX and cpu.min is None: + set_none = True + continue + mins += cpu.min + maxs += cpu.max + + current = currs / num_cpus + + if set_none: + min_ = max_ = None + else: + min_ = mins / num_cpus + max_ = maxs / num_cpus + + return _common.scpufreq(current, min_, max_) + + __all__.append("cpu_freq") + + +if hasattr(os, "getloadavg") or hasattr(_psplatform, "getloadavg"): + # Perform this hasattr check once on import time to either use the + # platform based code or proxy straight from the os module. + if hasattr(os, "getloadavg"): + getloadavg = os.getloadavg + else: + getloadavg = _psplatform.getloadavg + + __all__.append("getloadavg") + + +# ===================================================================== +# --- system memory related functions +# ===================================================================== + + +def virtual_memory(): + """Return statistics about system memory usage as a namedtuple + including the following fields, expressed in bytes: + + - total: + total physical memory available. + + - available: + the memory that can be given instantly to processes without the + system going into swap. + This is calculated by summing different memory values depending + on the platform and it is supposed to be used to monitor actual + memory usage in a cross platform fashion. + + - percent: + the percentage usage calculated as (total - available) / total * 100 + + - used: + memory used, calculated differently depending on the platform and + designed for informational purposes only: + macOS: active + wired + BSD: active + wired + cached + Linux: total - free + + - free: + memory not being used at all (zeroed) that is readily available; + note that this doesn't reflect the actual memory available + (use 'available' instead) + + Platform-specific fields: + + - active (UNIX): + memory currently in use or very recently used, and so it is in RAM. + + - inactive (UNIX): + memory that is marked as not used. + + - buffers (BSD, Linux): + cache for things like file system metadata. + + - cached (BSD, macOS): + cache for various things. + + - wired (macOS, BSD): + memory that is marked to always stay in RAM. It is never moved to disk. + + - shared (BSD): + memory that may be simultaneously accessed by multiple processes. + + The sum of 'used' and 'available' does not necessarily equal total. + On Windows 'available' and 'free' are the same. + """ + global _TOTAL_PHYMEM + ret = _psplatform.virtual_memory() + # cached for later use in Process.memory_percent() + _TOTAL_PHYMEM = ret.total + return ret + + +def swap_memory(): + """Return system swap memory statistics as a namedtuple including + the following fields: + + - total: total swap memory in bytes + - used: used swap memory in bytes + - free: free swap memory in bytes + - percent: the percentage usage + - sin: no. of bytes the system has swapped in from disk (cumulative) + - sout: no. of bytes the system has swapped out from disk (cumulative) + + 'sin' and 'sout' on Windows are meaningless and always set to 0. + """ + return _psplatform.swap_memory() + + +# ===================================================================== +# --- disks/paritions related functions +# ===================================================================== + + +def disk_usage(path): + """Return disk usage statistics about the given *path* as a + namedtuple including total, used and free space expressed in bytes + plus the percentage usage. + """ + return _psplatform.disk_usage(path) + + +def disk_partitions(all=False): + """Return mounted partitions as a list of + (device, mountpoint, fstype, opts) namedtuple. + 'opts' field is a raw string separated by commas indicating mount + options which may vary depending on the platform. + + If *all* parameter is False return physical devices only and ignore + all others. + """ + def pathconf(path, name): + try: + return os.pathconf(path, name) + except (OSError, AttributeError): + pass + + ret = _psplatform.disk_partitions(all) + if POSIX: + new = [] + for item in ret: + nt = item._replace( + maxfile=pathconf(item.mountpoint, 'PC_NAME_MAX'), + maxpath=pathconf(item.mountpoint, 'PC_PATH_MAX')) + new.append(nt) + return new + else: + return ret + + +def disk_io_counters(perdisk=False, nowrap=True): + """Return system disk I/O statistics as a namedtuple including + the following fields: + + - read_count: number of reads + - write_count: number of writes + - read_bytes: number of bytes read + - write_bytes: number of bytes written + - read_time: time spent reading from disk (in ms) + - write_time: time spent writing to disk (in ms) + + Platform specific: + + - busy_time: (Linux, FreeBSD) time spent doing actual I/Os (in ms) + - read_merged_count (Linux): number of merged reads + - write_merged_count (Linux): number of merged writes + + If *perdisk* is True return the same information for every + physical disk installed on the system as a dictionary + with partition names as the keys and the namedtuple + described above as the values. + + If *nowrap* is True it detects and adjust the numbers which overflow + and wrap (restart from 0) and add "old value" to "new value" so that + the returned numbers will always be increasing or remain the same, + but never decrease. + "disk_io_counters.cache_clear()" can be used to invalidate the + cache. + + On recent Windows versions 'diskperf -y' command may need to be + executed first otherwise this function won't find any disk. + """ + kwargs = dict(perdisk=perdisk) if LINUX else {} + rawdict = _psplatform.disk_io_counters(**kwargs) + if not rawdict: + return {} if perdisk else None + if nowrap: + rawdict = _wrap_numbers(rawdict, 'psutil.disk_io_counters') + nt = getattr(_psplatform, "sdiskio", _common.sdiskio) + if perdisk: + for disk, fields in rawdict.items(): + rawdict[disk] = nt(*fields) + return rawdict + else: + return nt(*(sum(x) for x in zip(*rawdict.values()))) + + +disk_io_counters.cache_clear = functools.partial( + _wrap_numbers.cache_clear, 'psutil.disk_io_counters') +disk_io_counters.cache_clear.__doc__ = "Clears nowrap argument cache" + + +# ===================================================================== +# --- network related functions +# ===================================================================== + + +def net_io_counters(pernic=False, nowrap=True): + """Return network I/O statistics as a namedtuple including + the following fields: + + - bytes_sent: number of bytes sent + - bytes_recv: number of bytes received + - packets_sent: number of packets sent + - packets_recv: number of packets received + - errin: total number of errors while receiving + - errout: total number of errors while sending + - dropin: total number of incoming packets which were dropped + - dropout: total number of outgoing packets which were dropped + (always 0 on macOS and BSD) + + If *pernic* is True return the same information for every + network interface installed on the system as a dictionary + with network interface names as the keys and the namedtuple + described above as the values. + + If *nowrap* is True it detects and adjust the numbers which overflow + and wrap (restart from 0) and add "old value" to "new value" so that + the returned numbers will always be increasing or remain the same, + but never decrease. + "disk_io_counters.cache_clear()" can be used to invalidate the + cache. + """ + rawdict = _psplatform.net_io_counters() + if not rawdict: + return {} if pernic else None + if nowrap: + rawdict = _wrap_numbers(rawdict, 'psutil.net_io_counters') + if pernic: + for nic, fields in rawdict.items(): + rawdict[nic] = _common.snetio(*fields) + return rawdict + else: + return _common.snetio(*[sum(x) for x in zip(*rawdict.values())]) + + +net_io_counters.cache_clear = functools.partial( + _wrap_numbers.cache_clear, 'psutil.net_io_counters') +net_io_counters.cache_clear.__doc__ = "Clears nowrap argument cache" + + +def net_connections(kind='inet'): + """Return system-wide socket connections as a list of + (fd, family, type, laddr, raddr, status, pid) namedtuples. + In case of limited privileges 'fd' and 'pid' may be set to -1 + and None respectively. + The *kind* parameter filters for connections that fit the + following criteria: + + +------------+----------------------------------------------------+ + | Kind Value | Connections using | + +------------+----------------------------------------------------+ + | inet | IPv4 and IPv6 | + | inet4 | IPv4 | + | inet6 | IPv6 | + | tcp | TCP | + | tcp4 | TCP over IPv4 | + | tcp6 | TCP over IPv6 | + | udp | UDP | + | udp4 | UDP over IPv4 | + | udp6 | UDP over IPv6 | + | unix | UNIX socket (both UDP and TCP protocols) | + | all | the sum of all the possible families and protocols | + +------------+----------------------------------------------------+ + + On macOS this function requires root privileges. + """ + return _psplatform.net_connections(kind) + + +def net_if_addrs(): + """Return the addresses associated to each NIC (network interface + card) installed on the system as a dictionary whose keys are the + NIC names and value is a list of namedtuples for each address + assigned to the NIC. Each namedtuple includes 5 fields: + + - family: can be either socket.AF_INET, socket.AF_INET6 or + psutil.AF_LINK, which refers to a MAC address. + - address: is the primary address and it is always set. + - netmask: and 'broadcast' and 'ptp' may be None. + - ptp: stands for "point to point" and references the + destination address on a point to point interface + (typically a VPN). + - broadcast: and *ptp* are mutually exclusive. + + Note: you can have more than one address of the same family + associated with each interface. + """ + has_enums = sys.version_info >= (3, 4) + if has_enums: + import socket + rawlist = _psplatform.net_if_addrs() + rawlist.sort(key=lambda x: x[1]) # sort by family + ret = collections.defaultdict(list) + for name, fam, addr, mask, broadcast, ptp in rawlist: + if has_enums: + try: + fam = socket.AddressFamily(fam) + except ValueError: + if WINDOWS and fam == -1: + fam = _psplatform.AF_LINK + elif (hasattr(_psplatform, "AF_LINK") and + _psplatform.AF_LINK == fam): + # Linux defines AF_LINK as an alias for AF_PACKET. + # We re-set the family here so that repr(family) + # will show AF_LINK rather than AF_PACKET + fam = _psplatform.AF_LINK + if fam == _psplatform.AF_LINK: + # The underlying C function may return an incomplete MAC + # address in which case we fill it with null bytes, see: + # https://github.com/giampaolo/psutil/issues/786 + separator = ":" if POSIX else "-" + while addr.count(separator) < 5: + addr += "%s00" % separator + ret[name].append(_common.snicaddr(fam, addr, mask, broadcast, ptp)) + return dict(ret) + + +def net_if_stats(): + """Return information about each NIC (network interface card) + installed on the system as a dictionary whose keys are the + NIC names and value is a namedtuple with the following fields: + + - isup: whether the interface is up (bool) + - duplex: can be either NIC_DUPLEX_FULL, NIC_DUPLEX_HALF or + NIC_DUPLEX_UNKNOWN + - speed: the NIC speed expressed in mega bits (MB); if it can't + be determined (e.g. 'localhost') it will be set to 0. + - mtu: the maximum transmission unit expressed in bytes. + """ + return _psplatform.net_if_stats() + + +# ===================================================================== +# --- sensors +# ===================================================================== + + +# Linux, macOS +if hasattr(_psplatform, "sensors_temperatures"): + + def sensors_temperatures(fahrenheit=False): + """Return hardware temperatures. Each entry is a namedtuple + representing a certain hardware sensor (it may be a CPU, an + hard disk or something else, depending on the OS and its + configuration). + All temperatures are expressed in celsius unless *fahrenheit* + is set to True. + """ + def convert(n): + if n is not None: + return (float(n) * 9 / 5) + 32 if fahrenheit else n + + ret = collections.defaultdict(list) + rawdict = _psplatform.sensors_temperatures() + + for name, values in rawdict.items(): + while values: + label, current, high, critical = values.pop(0) + current = convert(current) + high = convert(high) + critical = convert(critical) + + if high and not critical: + critical = high + elif critical and not high: + high = critical + + ret[name].append( + _common.shwtemp(label, current, high, critical)) + + return dict(ret) + + __all__.append("sensors_temperatures") + + +# Linux +if hasattr(_psplatform, "sensors_fans"): + + def sensors_fans(): + """Return fans speed. Each entry is a namedtuple + representing a certain hardware sensor. + All speed are expressed in RPM (rounds per minute). + """ + return _psplatform.sensors_fans() + + __all__.append("sensors_fans") + + +# Linux, Windows, FreeBSD, macOS +if hasattr(_psplatform, "sensors_battery"): + + def sensors_battery(): + """Return battery information. If no battery is installed + returns None. + + - percent: battery power left as a percentage. + - secsleft: a rough approximation of how many seconds are left + before the battery runs out of power. May be + POWER_TIME_UNLIMITED or POWER_TIME_UNLIMITED. + - power_plugged: True if the AC power cable is connected. + """ + return _psplatform.sensors_battery() + + __all__.append("sensors_battery") + + +# ===================================================================== +# --- other system related functions +# ===================================================================== + + +def boot_time(): + """Return the system boot time expressed in seconds since the epoch.""" + # Note: we are not caching this because it is subject to + # system clock updates. + return _psplatform.boot_time() + + +def users(): + """Return users currently connected on the system as a list of + namedtuples including the following fields. + + - user: the name of the user + - terminal: the tty or pseudo-tty associated with the user, if any. + - host: the host name associated with the entry, if any. + - started: the creation time as a floating point number expressed in + seconds since the epoch. + """ + return _psplatform.users() + + +# ===================================================================== +# --- Windows services +# ===================================================================== + + +if WINDOWS: + + def win_service_iter(): + """Return a generator yielding a WindowsService instance for all + Windows services installed. + """ + return _psplatform.win_service_iter() + + def win_service_get(name): + """Get a Windows service by *name*. + Raise NoSuchProcess if no service with such name exists. + """ + return _psplatform.win_service_get(name) + + +# ===================================================================== + + +def _set_debug(value): + """Enable or disable PSUTIL_DEBUG option, which prints debugging + messages to stderr. + """ + import psutil._common + psutil._common.PSUTIL_DEBUG = bool(value) + _psplatform.cext.set_debug(bool(value)) + + +def test(): # pragma: no cover + from ._common import bytes2human + from ._compat import get_terminal_size + + today_day = datetime.date.today() + templ = "%-10s %5s %5s %7s %7s %5s %6s %6s %6s %s" + attrs = ['pid', 'memory_percent', 'name', 'cmdline', 'cpu_times', + 'create_time', 'memory_info', 'status', 'nice', 'username'] + print(templ % ("USER", "PID", "%MEM", "VSZ", "RSS", "NICE", # NOQA + "STATUS", "START", "TIME", "CMDLINE")) + for p in process_iter(attrs, ad_value=None): + if p.info['create_time']: + ctime = datetime.datetime.fromtimestamp(p.info['create_time']) + if ctime.date() == today_day: + ctime = ctime.strftime("%H:%M") + else: + ctime = ctime.strftime("%b%d") + else: + ctime = '' + if p.info['cpu_times']: + cputime = time.strftime("%M:%S", + time.localtime(sum(p.info['cpu_times']))) + else: + cputime = '' + + user = p.info['username'] or '' + if not user and POSIX: + try: + user = p.uids()[0] + except Error: + pass + if user and WINDOWS and '\\' in user: + user = user.split('\\')[1] + user = user[:9] + vms = bytes2human(p.info['memory_info'].vms) if \ + p.info['memory_info'] is not None else '' + rss = bytes2human(p.info['memory_info'].rss) if \ + p.info['memory_info'] is not None else '' + memp = round(p.info['memory_percent'], 1) if \ + p.info['memory_percent'] is not None else '' + nice = int(p.info['nice']) if p.info['nice'] else '' + if p.info['cmdline']: + cmdline = ' '.join(p.info['cmdline']) + else: + cmdline = p.info['name'] + status = p.info['status'][:5] if p.info['status'] else '' + + line = templ % ( + user[:10], + p.info['pid'], + memp, + vms, + rss, + nice, + status, + ctime, + cputime, + cmdline) + print(line[:get_terminal_size()[0]]) # NOQA + + +del memoize_when_activated, division +if sys.version_info[0] < 3: + del num, x + +if __name__ == "__main__": + test() diff --git a/lib/psutil/_common.py b/lib/psutil/_common.py new file mode 100644 index 0000000..3414e8c --- /dev/null +++ b/lib/psutil/_common.py @@ -0,0 +1,899 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Common objects shared by __init__.py and _ps*.py modules.""" + +# Note: this module is imported by setup.py so it should not import +# psutil or third-party modules. + +from __future__ import division +from __future__ import print_function + +import collections +import contextlib +import errno +import functools +import os +import socket +import stat +import sys +import threading +import warnings +from collections import namedtuple +from socket import AF_INET +from socket import SOCK_DGRAM +from socket import SOCK_STREAM + + +try: + from socket import AF_INET6 +except ImportError: + AF_INET6 = None +try: + from socket import AF_UNIX +except ImportError: + AF_UNIX = None + +if sys.version_info >= (3, 4): + import enum +else: + enum = None + + +# can't take it from _common.py as this script is imported by setup.py +PY3 = sys.version_info[0] == 3 +PSUTIL_DEBUG = bool(os.getenv('PSUTIL_DEBUG', 0)) +_DEFAULT = object() + +__all__ = [ + # OS constants + 'FREEBSD', 'BSD', 'LINUX', 'NETBSD', 'OPENBSD', 'MACOS', 'OSX', 'POSIX', + 'SUNOS', 'WINDOWS', + # connection constants + 'CONN_CLOSE', 'CONN_CLOSE_WAIT', 'CONN_CLOSING', 'CONN_ESTABLISHED', + 'CONN_FIN_WAIT1', 'CONN_FIN_WAIT2', 'CONN_LAST_ACK', 'CONN_LISTEN', + 'CONN_NONE', 'CONN_SYN_RECV', 'CONN_SYN_SENT', 'CONN_TIME_WAIT', + # net constants + 'NIC_DUPLEX_FULL', 'NIC_DUPLEX_HALF', 'NIC_DUPLEX_UNKNOWN', + # process status constants + 'STATUS_DEAD', 'STATUS_DISK_SLEEP', 'STATUS_IDLE', 'STATUS_LOCKED', + 'STATUS_RUNNING', 'STATUS_SLEEPING', 'STATUS_STOPPED', 'STATUS_SUSPENDED', + 'STATUS_TRACING_STOP', 'STATUS_WAITING', 'STATUS_WAKE_KILL', + 'STATUS_WAKING', 'STATUS_ZOMBIE', 'STATUS_PARKED', + # other constants + 'ENCODING', 'ENCODING_ERRS', 'AF_INET6', + # named tuples + 'pconn', 'pcputimes', 'pctxsw', 'pgids', 'pio', 'pionice', 'popenfile', + 'pthread', 'puids', 'sconn', 'scpustats', 'sdiskio', 'sdiskpart', + 'sdiskusage', 'snetio', 'snicaddr', 'snicstats', 'sswap', 'suser', + # utility functions + 'conn_tmap', 'deprecated_method', 'isfile_strict', 'memoize', + 'parse_environ_block', 'path_exists_strict', 'usage_percent', + 'supports_ipv6', 'sockfam_to_enum', 'socktype_to_enum', "wrap_numbers", + 'open_text', 'open_binary', 'cat', 'bcat', + 'bytes2human', 'conn_to_ntuple', 'debug', + # shell utils + 'hilite', 'term_supports_colors', 'print_color', +] + + +# =================================================================== +# --- OS constants +# =================================================================== + + +POSIX = os.name == "posix" +WINDOWS = os.name == "nt" +LINUX = sys.platform.startswith("linux") +MACOS = sys.platform.startswith("darwin") +OSX = MACOS # deprecated alias +FREEBSD = sys.platform.startswith(("freebsd", "midnightbsd")) +OPENBSD = sys.platform.startswith("openbsd") +NETBSD = sys.platform.startswith("netbsd") +BSD = FREEBSD or OPENBSD or NETBSD +SUNOS = sys.platform.startswith(("sunos", "solaris")) +AIX = sys.platform.startswith("aix") + + +# =================================================================== +# --- API constants +# =================================================================== + + +# Process.status() +STATUS_RUNNING = "running" +STATUS_SLEEPING = "sleeping" +STATUS_DISK_SLEEP = "disk-sleep" +STATUS_STOPPED = "stopped" +STATUS_TRACING_STOP = "tracing-stop" +STATUS_ZOMBIE = "zombie" +STATUS_DEAD = "dead" +STATUS_WAKE_KILL = "wake-kill" +STATUS_WAKING = "waking" +STATUS_IDLE = "idle" # Linux, macOS, FreeBSD +STATUS_LOCKED = "locked" # FreeBSD +STATUS_WAITING = "waiting" # FreeBSD +STATUS_SUSPENDED = "suspended" # NetBSD +STATUS_PARKED = "parked" # Linux + +# Process.connections() and psutil.net_connections() +CONN_ESTABLISHED = "ESTABLISHED" +CONN_SYN_SENT = "SYN_SENT" +CONN_SYN_RECV = "SYN_RECV" +CONN_FIN_WAIT1 = "FIN_WAIT1" +CONN_FIN_WAIT2 = "FIN_WAIT2" +CONN_TIME_WAIT = "TIME_WAIT" +CONN_CLOSE = "CLOSE" +CONN_CLOSE_WAIT = "CLOSE_WAIT" +CONN_LAST_ACK = "LAST_ACK" +CONN_LISTEN = "LISTEN" +CONN_CLOSING = "CLOSING" +CONN_NONE = "NONE" + +# net_if_stats() +if enum is None: + NIC_DUPLEX_FULL = 2 + NIC_DUPLEX_HALF = 1 + NIC_DUPLEX_UNKNOWN = 0 +else: + class NicDuplex(enum.IntEnum): + NIC_DUPLEX_FULL = 2 + NIC_DUPLEX_HALF = 1 + NIC_DUPLEX_UNKNOWN = 0 + + globals().update(NicDuplex.__members__) + +# sensors_battery() +if enum is None: + POWER_TIME_UNKNOWN = -1 + POWER_TIME_UNLIMITED = -2 +else: + class BatteryTime(enum.IntEnum): + POWER_TIME_UNKNOWN = -1 + POWER_TIME_UNLIMITED = -2 + + globals().update(BatteryTime.__members__) + +# --- others + +ENCODING = sys.getfilesystemencoding() +if not PY3: + ENCODING_ERRS = "replace" +else: + try: + ENCODING_ERRS = sys.getfilesystemencodeerrors() # py 3.6 + except AttributeError: + ENCODING_ERRS = "surrogateescape" if POSIX else "replace" + + +# =================================================================== +# --- namedtuples +# =================================================================== + +# --- for system functions + +# psutil.swap_memory() +sswap = namedtuple('sswap', ['total', 'used', 'free', 'percent', 'sin', + 'sout']) +# psutil.disk_usage() +sdiskusage = namedtuple('sdiskusage', ['total', 'used', 'free', 'percent']) +# psutil.disk_io_counters() +sdiskio = namedtuple('sdiskio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes', + 'read_time', 'write_time']) +# psutil.disk_partitions() +sdiskpart = namedtuple('sdiskpart', ['device', 'mountpoint', 'fstype', 'opts', + 'maxfile', 'maxpath']) +# psutil.net_io_counters() +snetio = namedtuple('snetio', ['bytes_sent', 'bytes_recv', + 'packets_sent', 'packets_recv', + 'errin', 'errout', + 'dropin', 'dropout']) +# psutil.users() +suser = namedtuple('suser', ['name', 'terminal', 'host', 'started', 'pid']) +# psutil.net_connections() +sconn = namedtuple('sconn', ['fd', 'family', 'type', 'laddr', 'raddr', + 'status', 'pid']) +# psutil.net_if_addrs() +snicaddr = namedtuple('snicaddr', + ['family', 'address', 'netmask', 'broadcast', 'ptp']) +# psutil.net_if_stats() +snicstats = namedtuple('snicstats', + ['isup', 'duplex', 'speed', 'mtu', 'flags']) +# psutil.cpu_stats() +scpustats = namedtuple( + 'scpustats', ['ctx_switches', 'interrupts', 'soft_interrupts', 'syscalls']) +# psutil.cpu_freq() +scpufreq = namedtuple('scpufreq', ['current', 'min', 'max']) +# psutil.sensors_temperatures() +shwtemp = namedtuple( + 'shwtemp', ['label', 'current', 'high', 'critical']) +# psutil.sensors_battery() +sbattery = namedtuple('sbattery', ['percent', 'secsleft', 'power_plugged']) +# psutil.sensors_fans() +sfan = namedtuple('sfan', ['label', 'current']) + +# --- for Process methods + +# psutil.Process.cpu_times() +pcputimes = namedtuple('pcputimes', + ['user', 'system', 'children_user', 'children_system']) +# psutil.Process.open_files() +popenfile = namedtuple('popenfile', ['path', 'fd']) +# psutil.Process.threads() +pthread = namedtuple('pthread', ['id', 'user_time', 'system_time']) +# psutil.Process.uids() +puids = namedtuple('puids', ['real', 'effective', 'saved']) +# psutil.Process.gids() +pgids = namedtuple('pgids', ['real', 'effective', 'saved']) +# psutil.Process.io_counters() +pio = namedtuple('pio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes']) +# psutil.Process.ionice() +pionice = namedtuple('pionice', ['ioclass', 'value']) +# psutil.Process.ctx_switches() +pctxsw = namedtuple('pctxsw', ['voluntary', 'involuntary']) +# psutil.Process.connections() +pconn = namedtuple('pconn', ['fd', 'family', 'type', 'laddr', 'raddr', + 'status']) + +# psutil.connections() and psutil.Process.connections() +addr = namedtuple('addr', ['ip', 'port']) + + +# =================================================================== +# --- Process.connections() 'kind' parameter mapping +# =================================================================== + + +conn_tmap = { + "all": ([AF_INET, AF_INET6, AF_UNIX], [SOCK_STREAM, SOCK_DGRAM]), + "tcp": ([AF_INET, AF_INET6], [SOCK_STREAM]), + "tcp4": ([AF_INET], [SOCK_STREAM]), + "udp": ([AF_INET, AF_INET6], [SOCK_DGRAM]), + "udp4": ([AF_INET], [SOCK_DGRAM]), + "inet": ([AF_INET, AF_INET6], [SOCK_STREAM, SOCK_DGRAM]), + "inet4": ([AF_INET], [SOCK_STREAM, SOCK_DGRAM]), + "inet6": ([AF_INET6], [SOCK_STREAM, SOCK_DGRAM]), +} + +if AF_INET6 is not None: + conn_tmap.update({ + "tcp6": ([AF_INET6], [SOCK_STREAM]), + "udp6": ([AF_INET6], [SOCK_DGRAM]), + }) + +if AF_UNIX is not None: + conn_tmap.update({ + "unix": ([AF_UNIX], [SOCK_STREAM, SOCK_DGRAM]), + }) + + +# ===================================================================== +# --- Exceptions +# ===================================================================== + + +class Error(Exception): + """Base exception class. All other psutil exceptions inherit + from this one. + """ + __module__ = 'psutil' + + def _infodict(self, attrs): + info = collections.OrderedDict() + for name in attrs: + value = getattr(self, name, None) + if value: + info[name] = value + elif name == "pid" and value == 0: + info[name] = value + return info + + def __str__(self): + # invoked on `raise Error` + info = self._infodict(("pid", "ppid", "name")) + if info: + details = "(%s)" % ", ".join( + ["%s=%r" % (k, v) for k, v in info.items()]) + else: + details = None + return " ".join([x for x in (getattr(self, "msg", ""), details) if x]) + + def __repr__(self): + # invoked on `repr(Error)` + info = self._infodict(("pid", "ppid", "name", "seconds", "msg")) + details = ", ".join(["%s=%r" % (k, v) for k, v in info.items()]) + return "psutil.%s(%s)" % (self.__class__.__name__, details) + + +class NoSuchProcess(Error): + """Exception raised when a process with a certain PID doesn't + or no longer exists. + """ + __module__ = 'psutil' + + def __init__(self, pid, name=None, msg=None): + Error.__init__(self) + self.pid = pid + self.name = name + self.msg = msg or "process no longer exists" + + +class ZombieProcess(NoSuchProcess): + """Exception raised when querying a zombie process. This is + raised on macOS, BSD and Solaris only, and not always: depending + on the query the OS may be able to succeed anyway. + On Linux all zombie processes are querable (hence this is never + raised). Windows doesn't have zombie processes. + """ + __module__ = 'psutil' + + def __init__(self, pid, name=None, ppid=None, msg=None): + NoSuchProcess.__init__(self, pid, name, msg) + self.ppid = ppid + self.msg = msg or "PID still exists but it's a zombie" + + +class AccessDenied(Error): + """Exception raised when permission to perform an action is denied.""" + __module__ = 'psutil' + + def __init__(self, pid=None, name=None, msg=None): + Error.__init__(self) + self.pid = pid + self.name = name + self.msg = msg or "" + + +class TimeoutExpired(Error): + """Raised on Process.wait(timeout) if timeout expires and process + is still alive. + """ + __module__ = 'psutil' + + def __init__(self, seconds, pid=None, name=None): + Error.__init__(self) + self.seconds = seconds + self.pid = pid + self.name = name + self.msg = "timeout after %s seconds" % seconds + + +# =================================================================== +# --- utils +# =================================================================== + + +def usage_percent(used, total, round_=None): + """Calculate percentage usage of 'used' against 'total'.""" + try: + ret = (float(used) / total) * 100 + except ZeroDivisionError: + return 0.0 + else: + if round_ is not None: + ret = round(ret, round_) + return ret + + +def memoize(fun): + """A simple memoize decorator for functions supporting (hashable) + positional arguments. + It also provides a cache_clear() function for clearing the cache: + + >>> @memoize + ... def foo() + ... return 1 + ... + >>> foo() + 1 + >>> foo.cache_clear() + >>> + """ + @functools.wraps(fun) + def wrapper(*args, **kwargs): + key = (args, frozenset(sorted(kwargs.items()))) + try: + return cache[key] + except KeyError: + ret = cache[key] = fun(*args, **kwargs) + return ret + + def cache_clear(): + """Clear cache.""" + cache.clear() + + cache = {} + wrapper.cache_clear = cache_clear + return wrapper + + +def memoize_when_activated(fun): + """A memoize decorator which is disabled by default. It can be + activated and deactivated on request. + For efficiency reasons it can be used only against class methods + accepting no arguments. + + >>> class Foo: + ... @memoize + ... def foo() + ... print(1) + ... + >>> f = Foo() + >>> # deactivated (default) + >>> foo() + 1 + >>> foo() + 1 + >>> + >>> # activated + >>> foo.cache_activate(self) + >>> foo() + 1 + >>> foo() + >>> foo() + >>> + """ + @functools.wraps(fun) + def wrapper(self): + try: + # case 1: we previously entered oneshot() ctx + ret = self._cache[fun] + except AttributeError: + # case 2: we never entered oneshot() ctx + return fun(self) + except KeyError: + # case 3: we entered oneshot() ctx but there's no cache + # for this entry yet + ret = fun(self) + try: + self._cache[fun] = ret + except AttributeError: + # multi-threading race condition, see: + # https://github.com/giampaolo/psutil/issues/1948 + pass + return ret + + def cache_activate(proc): + """Activate cache. Expects a Process instance. Cache will be + stored as a "_cache" instance attribute.""" + proc._cache = {} + + def cache_deactivate(proc): + """Deactivate and clear cache.""" + try: + del proc._cache + except AttributeError: + pass + + wrapper.cache_activate = cache_activate + wrapper.cache_deactivate = cache_deactivate + return wrapper + + +def isfile_strict(path): + """Same as os.path.isfile() but does not swallow EACCES / EPERM + exceptions, see: + http://mail.python.org/pipermail/python-dev/2012-June/120787.html + """ + try: + st = os.stat(path) + except OSError as err: + if err.errno in (errno.EPERM, errno.EACCES): + raise + return False + else: + return stat.S_ISREG(st.st_mode) + + +def path_exists_strict(path): + """Same as os.path.exists() but does not swallow EACCES / EPERM + exceptions, see: + http://mail.python.org/pipermail/python-dev/2012-June/120787.html + """ + try: + os.stat(path) + except OSError as err: + if err.errno in (errno.EPERM, errno.EACCES): + raise + return False + else: + return True + + +@memoize +def supports_ipv6(): + """Return True if IPv6 is supported on this platform.""" + if not socket.has_ipv6 or AF_INET6 is None: + return False + try: + sock = socket.socket(AF_INET6, socket.SOCK_STREAM) + with contextlib.closing(sock): + sock.bind(("::1", 0)) + return True + except socket.error: + return False + + +def parse_environ_block(data): + """Parse a C environ block of environment variables into a dictionary.""" + # The block is usually raw data from the target process. It might contain + # trailing garbage and lines that do not look like assignments. + ret = {} + pos = 0 + + # localize global variable to speed up access. + WINDOWS_ = WINDOWS + while True: + next_pos = data.find("\0", pos) + # nul byte at the beginning or double nul byte means finish + if next_pos <= pos: + break + # there might not be an equals sign + equal_pos = data.find("=", pos, next_pos) + if equal_pos > pos: + key = data[pos:equal_pos] + value = data[equal_pos + 1:next_pos] + # Windows expects environment variables to be uppercase only + if WINDOWS_: + key = key.upper() + ret[key] = value + pos = next_pos + 1 + + return ret + + +def sockfam_to_enum(num): + """Convert a numeric socket family value to an IntEnum member. + If it's not a known member, return the numeric value itself. + """ + if enum is None: + return num + else: # pragma: no cover + try: + return socket.AddressFamily(num) + except ValueError: + return num + + +def socktype_to_enum(num): + """Convert a numeric socket type value to an IntEnum member. + If it's not a known member, return the numeric value itself. + """ + if enum is None: + return num + else: # pragma: no cover + try: + return socket.SocketKind(num) + except ValueError: + return num + + +def conn_to_ntuple(fd, fam, type_, laddr, raddr, status, status_map, pid=None): + """Convert a raw connection tuple to a proper ntuple.""" + if fam in (socket.AF_INET, AF_INET6): + if laddr: + laddr = addr(*laddr) + if raddr: + raddr = addr(*raddr) + if type_ == socket.SOCK_STREAM and fam in (AF_INET, AF_INET6): + status = status_map.get(status, CONN_NONE) + else: + status = CONN_NONE # ignore whatever C returned to us + fam = sockfam_to_enum(fam) + type_ = socktype_to_enum(type_) + if pid is None: + return pconn(fd, fam, type_, laddr, raddr, status) + else: + return sconn(fd, fam, type_, laddr, raddr, status, pid) + + +def deprecated_method(replacement): + """A decorator which can be used to mark a method as deprecated + 'replcement' is the method name which will be called instead. + """ + def outer(fun): + msg = "%s() is deprecated and will be removed; use %s() instead" % ( + fun.__name__, replacement) + if fun.__doc__ is None: + fun.__doc__ = msg + + @functools.wraps(fun) + def inner(self, *args, **kwargs): + warnings.warn(msg, category=DeprecationWarning, stacklevel=2) + return getattr(self, replacement)(*args, **kwargs) + return inner + return outer + + +class _WrapNumbers: + """Watches numbers so that they don't overflow and wrap + (reset to zero). + """ + + def __init__(self): + self.lock = threading.Lock() + self.cache = {} + self.reminders = {} + self.reminder_keys = {} + + def _add_dict(self, input_dict, name): + assert name not in self.cache + assert name not in self.reminders + assert name not in self.reminder_keys + self.cache[name] = input_dict + self.reminders[name] = collections.defaultdict(int) + self.reminder_keys[name] = collections.defaultdict(set) + + def _remove_dead_reminders(self, input_dict, name): + """In case the number of keys changed between calls (e.g. a + disk disappears) this removes the entry from self.reminders. + """ + old_dict = self.cache[name] + gone_keys = set(old_dict.keys()) - set(input_dict.keys()) + for gone_key in gone_keys: + for remkey in self.reminder_keys[name][gone_key]: + del self.reminders[name][remkey] + del self.reminder_keys[name][gone_key] + + def run(self, input_dict, name): + """Cache dict and sum numbers which overflow and wrap. + Return an updated copy of `input_dict` + """ + if name not in self.cache: + # This was the first call. + self._add_dict(input_dict, name) + return input_dict + + self._remove_dead_reminders(input_dict, name) + + old_dict = self.cache[name] + new_dict = {} + for key in input_dict.keys(): + input_tuple = input_dict[key] + try: + old_tuple = old_dict[key] + except KeyError: + # The input dict has a new key (e.g. a new disk or NIC) + # which didn't exist in the previous call. + new_dict[key] = input_tuple + continue + + bits = [] + for i in range(len(input_tuple)): + input_value = input_tuple[i] + old_value = old_tuple[i] + remkey = (key, i) + if input_value < old_value: + # it wrapped! + self.reminders[name][remkey] += old_value + self.reminder_keys[name][key].add(remkey) + bits.append(input_value + self.reminders[name][remkey]) + + new_dict[key] = tuple(bits) + + self.cache[name] = input_dict + return new_dict + + def cache_clear(self, name=None): + """Clear the internal cache, optionally only for function 'name'.""" + with self.lock: + if name is None: + self.cache.clear() + self.reminders.clear() + self.reminder_keys.clear() + else: + self.cache.pop(name, None) + self.reminders.pop(name, None) + self.reminder_keys.pop(name, None) + + def cache_info(self): + """Return internal cache dicts as a tuple of 3 elements.""" + with self.lock: + return (self.cache, self.reminders, self.reminder_keys) + + +def wrap_numbers(input_dict, name): + """Given an `input_dict` and a function `name`, adjust the numbers + which "wrap" (restart from zero) across different calls by adding + "old value" to "new value" and return an updated dict. + """ + with _wn.lock: + return _wn.run(input_dict, name) + + +_wn = _WrapNumbers() +wrap_numbers.cache_clear = _wn.cache_clear +wrap_numbers.cache_info = _wn.cache_info + + +# The read buffer size for open() builtin. This (also) dictates how +# much data we read(2) when iterating over file lines as in: +# >>> with open(file) as f: +# ... for line in f: +# ... ... +# Default per-line buffer size for binary files is 1K. For text files +# is 8K. We use a bigger buffer (32K) in order to have more consistent +# results when reading /proc pseudo files on Linux, see: +# https://github.com/giampaolo/psutil/issues/2050 +# On Python 2 this also speeds up the reading of big files: +# (namely /proc/{pid}/smaps and /proc/net/*): +# https://github.com/giampaolo/psutil/issues/708 +FILE_READ_BUFFER_SIZE = 32 * 1024 + + +def open_binary(fname): + return open(fname, "rb", buffering=FILE_READ_BUFFER_SIZE) + + +def open_text(fname): + """On Python 3 opens a file in text mode by using fs encoding and + a proper en/decoding errors handler. + On Python 2 this is just an alias for open(name, 'rt'). + """ + if not PY3: + return open(fname, "rt", buffering=FILE_READ_BUFFER_SIZE) + + # See: + # https://github.com/giampaolo/psutil/issues/675 + # https://github.com/giampaolo/psutil/pull/733 + fobj = open(fname, "rt", buffering=FILE_READ_BUFFER_SIZE, + encoding=ENCODING, errors=ENCODING_ERRS) + try: + # Dictates per-line read(2) buffer size. Defaults is 8k. See: + # https://github.com/giampaolo/psutil/issues/2050#issuecomment-1013387546 + fobj._CHUNK_SIZE = FILE_READ_BUFFER_SIZE + except AttributeError: + pass + except Exception: + fobj.close() + raise + + return fobj + + +def cat(fname, fallback=_DEFAULT, _open=open_text): + """Read entire file content and return it as a string. File is + opened in text mode. If specified, `fallback` is the value + returned in case of error, either if the file does not exist or + it can't be read(). + """ + if fallback is _DEFAULT: + with _open(fname) as f: + return f.read() + else: + try: + with _open(fname) as f: + return f.read() + except (IOError, OSError): + return fallback + + +def bcat(fname, fallback=_DEFAULT): + """Same as above but opens file in binary mode.""" + return cat(fname, fallback=fallback, _open=open_binary) + + +def bytes2human(n, format="%(value).1f%(symbol)s"): + """Used by various scripts. See: + http://goo.gl/zeJZl + + >>> bytes2human(10000) + '9.8K' + >>> bytes2human(100001221) + '95.4M' + """ + symbols = ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y') + prefix = {} + for i, s in enumerate(symbols[1:]): + prefix[s] = 1 << (i + 1) * 10 + for symbol in reversed(symbols[1:]): + if n >= prefix[symbol]: + value = float(n) / prefix[symbol] + return format % locals() + return format % dict(symbol=symbols[0], value=n) + + +def get_procfs_path(): + """Return updated psutil.PROCFS_PATH constant.""" + return sys.modules['psutil'].PROCFS_PATH + + +if PY3: + def decode(s): + return s.decode(encoding=ENCODING, errors=ENCODING_ERRS) +else: + def decode(s): + return s + + +# ===================================================================== +# --- shell utils +# ===================================================================== + + +@memoize +def term_supports_colors(file=sys.stdout): # pragma: no cover + if os.name == 'nt': + return True + try: + import curses + assert file.isatty() + curses.setupterm() + assert curses.tigetnum("colors") > 0 + except Exception: + return False + else: + return True + + +def hilite(s, color=None, bold=False): # pragma: no cover + """Return an highlighted version of 'string'.""" + if not term_supports_colors(): + return s + attr = [] + colors = dict(green='32', red='91', brown='33', yellow='93', blue='34', + violet='35', lightblue='36', grey='37', darkgrey='30') + colors[None] = '29' + try: + color = colors[color] + except KeyError: + raise ValueError("invalid color %r; choose between %s" % ( + list(colors.keys()))) + attr.append(color) + if bold: + attr.append('1') + return '\x1b[%sm%s\x1b[0m' % (';'.join(attr), s) + + +def print_color( + s, color=None, bold=False, file=sys.stdout): # pragma: no cover + """Print a colorized version of string.""" + if not term_supports_colors(): + print(s, file=file) # NOQA + elif POSIX: + print(hilite(s, color, bold), file=file) # NOQA + else: + import ctypes + + DEFAULT_COLOR = 7 + GetStdHandle = ctypes.windll.Kernel32.GetStdHandle + SetConsoleTextAttribute = \ + ctypes.windll.Kernel32.SetConsoleTextAttribute + + colors = dict(green=2, red=4, brown=6, yellow=6) + colors[None] = DEFAULT_COLOR + try: + color = colors[color] + except KeyError: + raise ValueError("invalid color %r; choose between %r" % ( + color, list(colors.keys()))) + if bold and color <= 7: + color += 8 + + handle_id = -12 if file is sys.stderr else -11 + GetStdHandle.restype = ctypes.c_ulong + handle = GetStdHandle(handle_id) + SetConsoleTextAttribute(handle, color) + try: + print(s, file=file) # NOQA + finally: + SetConsoleTextAttribute(handle, DEFAULT_COLOR) + + +def debug(msg): + """If PSUTIL_DEBUG env var is set, print a debug message to stderr.""" + if PSUTIL_DEBUG: + import inspect + fname, lineno, func_name, lines, index = inspect.getframeinfo( + inspect.currentframe().f_back) + if isinstance(msg, Exception): + if isinstance(msg, (OSError, IOError, EnvironmentError)): + # ...because str(exc) may contain info about the file name + msg = "ignoring %s" % msg + else: + msg = "ignoring %r" % msg + print("psutil-debug [%s:%s]> %s" % (fname, lineno, msg), # NOQA + file=sys.stderr) diff --git a/lib/psutil/_compat.py b/lib/psutil/_compat.py new file mode 100644 index 0000000..52e762b --- /dev/null +++ b/lib/psutil/_compat.py @@ -0,0 +1,450 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Module which provides compatibility with older Python versions. +This is more future-compatible rather than the opposite (prefer latest +Python 3 way of doing things). +""" + +import collections +import contextlib +import errno +import functools +import os +import sys +import types + + +__all__ = [ + # constants + "PY3", + # builtins + "long", "range", "super", "unicode", "basestring", + # literals + "u", "b", + # collections module + "lru_cache", + # shutil module + "which", "get_terminal_size", + # contextlib module + "redirect_stderr", + # python 3 exceptions + "FileNotFoundError", "PermissionError", "ProcessLookupError", + "InterruptedError", "ChildProcessError", "FileExistsError"] + + +PY3 = sys.version_info[0] == 3 +_SENTINEL = object() + +if PY3: + long = int + xrange = range + unicode = str + basestring = str + range = range + + def u(s): + return s + + def b(s): + return s.encode("latin-1") +else: + long = long + range = xrange + unicode = unicode + basestring = basestring + + def u(s): + return unicode(s, "unicode_escape") + + def b(s): + return s + + +# --- builtins + + +# Python 3 super(). +# Taken from "future" package. +# Credit: Ryan Kelly +if PY3: + super = super +else: + _builtin_super = super + + def super(type_=_SENTINEL, type_or_obj=_SENTINEL, framedepth=1): + """Like Python 3 builtin super(). If called without any arguments + it attempts to infer them at runtime. + """ + if type_ is _SENTINEL: + f = sys._getframe(framedepth) + try: + # Get the function's first positional argument. + type_or_obj = f.f_locals[f.f_code.co_varnames[0]] + except (IndexError, KeyError): + raise RuntimeError('super() used in a function with no args') + try: + # Get the MRO so we can crawl it. + mro = type_or_obj.__mro__ + except (AttributeError, RuntimeError): + try: + mro = type_or_obj.__class__.__mro__ + except AttributeError: + raise RuntimeError('super() used in a non-newstyle class') + for type_ in mro: + # Find the class that owns the currently-executing method. + for meth in type_.__dict__.values(): + # Drill down through any wrappers to the underlying func. + # This handles e.g. classmethod() and staticmethod(). + try: + while not isinstance(meth, types.FunctionType): + if isinstance(meth, property): + # Calling __get__ on the property will invoke + # user code which might throw exceptions or + # have side effects + meth = meth.fget + else: + try: + meth = meth.__func__ + except AttributeError: + meth = meth.__get__(type_or_obj, type_) + except (AttributeError, TypeError): + continue + if meth.func_code is f.f_code: + break # found + else: + # Not found. Move onto the next class in MRO. + continue + break # found + else: + raise RuntimeError('super() called outside a method') + + # Dispatch to builtin super(). + if type_or_obj is not _SENTINEL: + return _builtin_super(type_, type_or_obj) + return _builtin_super(type_) + + +# --- exceptions + + +if PY3: + FileNotFoundError = FileNotFoundError # NOQA + PermissionError = PermissionError # NOQA + ProcessLookupError = ProcessLookupError # NOQA + InterruptedError = InterruptedError # NOQA + ChildProcessError = ChildProcessError # NOQA + FileExistsError = FileExistsError # NOQA +else: + # https://github.com/PythonCharmers/python-future/blob/exceptions/ + # src/future/types/exceptions/pep3151.py + import platform + + def _instance_checking_exception(base_exception=Exception): + def wrapped(instance_checker): + class TemporaryClass(base_exception): + + def __init__(self, *args, **kwargs): + if len(args) == 1 and isinstance(args[0], TemporaryClass): + unwrap_me = args[0] + for attr in dir(unwrap_me): + if not attr.startswith('__'): + setattr(self, attr, getattr(unwrap_me, attr)) + else: + super(TemporaryClass, self).__init__(*args, **kwargs) + + class __metaclass__(type): + def __instancecheck__(cls, inst): + return instance_checker(inst) + + def __subclasscheck__(cls, classinfo): + value = sys.exc_info()[1] + return isinstance(value, cls) + + TemporaryClass.__name__ = instance_checker.__name__ + TemporaryClass.__doc__ = instance_checker.__doc__ + return TemporaryClass + + return wrapped + + @_instance_checking_exception(EnvironmentError) + def FileNotFoundError(inst): + return getattr(inst, 'errno', _SENTINEL) == errno.ENOENT + + @_instance_checking_exception(EnvironmentError) + def ProcessLookupError(inst): + return getattr(inst, 'errno', _SENTINEL) == errno.ESRCH + + @_instance_checking_exception(EnvironmentError) + def PermissionError(inst): + return getattr(inst, 'errno', _SENTINEL) in ( + errno.EACCES, errno.EPERM) + + @_instance_checking_exception(EnvironmentError) + def InterruptedError(inst): + return getattr(inst, 'errno', _SENTINEL) == errno.EINTR + + @_instance_checking_exception(EnvironmentError) + def ChildProcessError(inst): + return getattr(inst, 'errno', _SENTINEL) == errno.ECHILD + + @_instance_checking_exception(EnvironmentError) + def FileExistsError(inst): + return getattr(inst, 'errno', _SENTINEL) == errno.EEXIST + + if platform.python_implementation() != "CPython": + try: + raise OSError(errno.EEXIST, "perm") + except FileExistsError: + pass + except OSError: + raise RuntimeError( + "broken or incompatible Python implementation, see: " + "https://github.com/giampaolo/psutil/issues/1659") + + +# --- stdlib additions + + +# py 3.2 functools.lru_cache +# Taken from: http://code.activestate.com/recipes/578078 +# Credit: Raymond Hettinger +try: + from functools import lru_cache +except ImportError: + try: + from threading import RLock + except ImportError: + from dummy_threading import RLock + + _CacheInfo = collections.namedtuple( + "CacheInfo", ["hits", "misses", "maxsize", "currsize"]) + + class _HashedSeq(list): + __slots__ = 'hashvalue' + + def __init__(self, tup, hash=hash): + self[:] = tup + self.hashvalue = hash(tup) + + def __hash__(self): + return self.hashvalue + + def _make_key(args, kwds, typed, + kwd_mark=(_SENTINEL, ), + fasttypes=set((int, str, frozenset, type(None))), # noqa + sorted=sorted, tuple=tuple, type=type, len=len): + key = args + if kwds: + sorted_items = sorted(kwds.items()) + key += kwd_mark + for item in sorted_items: + key += item + if typed: + key += tuple(type(v) for v in args) + if kwds: + key += tuple(type(v) for k, v in sorted_items) + elif len(key) == 1 and type(key[0]) in fasttypes: + return key[0] + return _HashedSeq(key) + + def lru_cache(maxsize=100, typed=False): + """Least-recently-used cache decorator, see: + http://docs.python.org/3/library/functools.html#functools.lru_cache + """ + def decorating_function(user_function): + cache = dict() + stats = [0, 0] + HITS, MISSES = 0, 1 + make_key = _make_key + cache_get = cache.get + _len = len + lock = RLock() + root = [] + root[:] = [root, root, None, None] + nonlocal_root = [root] + PREV, NEXT, KEY, RESULT = 0, 1, 2, 3 + if maxsize == 0: + def wrapper(*args, **kwds): + result = user_function(*args, **kwds) + stats[MISSES] += 1 + return result + elif maxsize is None: + def wrapper(*args, **kwds): + key = make_key(args, kwds, typed) + result = cache_get(key, root) + if result is not root: + stats[HITS] += 1 + return result + result = user_function(*args, **kwds) + cache[key] = result + stats[MISSES] += 1 + return result + else: + def wrapper(*args, **kwds): + if kwds or typed: + key = make_key(args, kwds, typed) + else: + key = args + lock.acquire() + try: + link = cache_get(key) + if link is not None: + root, = nonlocal_root + link_prev, link_next, key, result = link + link_prev[NEXT] = link_next + link_next[PREV] = link_prev + last = root[PREV] + last[NEXT] = root[PREV] = link + link[PREV] = last + link[NEXT] = root + stats[HITS] += 1 + return result + finally: + lock.release() + result = user_function(*args, **kwds) + lock.acquire() + try: + root, = nonlocal_root + if key in cache: + pass + elif _len(cache) >= maxsize: + oldroot = root + oldroot[KEY] = key + oldroot[RESULT] = result + root = nonlocal_root[0] = oldroot[NEXT] + oldkey = root[KEY] + root[KEY] = root[RESULT] = None + del cache[oldkey] + cache[key] = oldroot + else: + last = root[PREV] + link = [last, root, key, result] + last[NEXT] = root[PREV] = cache[key] = link + stats[MISSES] += 1 + finally: + lock.release() + return result + + def cache_info(): + """Report cache statistics""" + lock.acquire() + try: + return _CacheInfo(stats[HITS], stats[MISSES], maxsize, + len(cache)) + finally: + lock.release() + + def cache_clear(): + """Clear the cache and cache statistics""" + lock.acquire() + try: + cache.clear() + root = nonlocal_root[0] + root[:] = [root, root, None, None] + stats[:] = [0, 0] + finally: + lock.release() + + wrapper.__wrapped__ = user_function + wrapper.cache_info = cache_info + wrapper.cache_clear = cache_clear + return functools.update_wrapper(wrapper, user_function) + + return decorating_function + + +# python 3.3 +try: + from shutil import which +except ImportError: + def which(cmd, mode=os.F_OK | os.X_OK, path=None): + """Given a command, mode, and a PATH string, return the path which + conforms to the given mode on the PATH, or None if there is no such + file. + + `mode` defaults to os.F_OK | os.X_OK. `path` defaults to the result + of os.environ.get("PATH"), or can be overridden with a custom search + path. + """ + def _access_check(fn, mode): + return (os.path.exists(fn) and os.access(fn, mode) and + not os.path.isdir(fn)) + + if os.path.dirname(cmd): + if _access_check(cmd, mode): + return cmd + return None + + if path is None: + path = os.environ.get("PATH", os.defpath) + if not path: + return None + path = path.split(os.pathsep) + + if sys.platform == "win32": + if os.curdir not in path: + path.insert(0, os.curdir) + + pathext = os.environ.get("PATHEXT", "").split(os.pathsep) + if any(cmd.lower().endswith(ext.lower()) for ext in pathext): + files = [cmd] + else: + files = [cmd + ext for ext in pathext] + else: + files = [cmd] + + seen = set() + for dir in path: + normdir = os.path.normcase(dir) + if normdir not in seen: + seen.add(normdir) + for thefile in files: + name = os.path.join(dir, thefile) + if _access_check(name, mode): + return name + return None + + +# python 3.3 +try: + from shutil import get_terminal_size +except ImportError: + def get_terminal_size(fallback=(80, 24)): + try: + import fcntl + import struct + import termios + except ImportError: + return fallback + else: + try: + # This should work on Linux. + res = struct.unpack( + 'hh', fcntl.ioctl(1, termios.TIOCGWINSZ, '1234')) + return (res[1], res[0]) + except Exception: + return fallback + + +# python 3.3 +try: + from subprocess import TimeoutExpired as SubprocessTimeoutExpired +except ImportError: + class SubprocessTimeoutExpired: + pass + + +# python 3.5 +try: + from contextlib import redirect_stderr +except ImportError: + @contextlib.contextmanager + def redirect_stderr(new_target): + original = sys.stderr + try: + sys.stderr = new_target + yield new_target + finally: + sys.stderr = original diff --git a/lib/psutil/_psaix.py b/lib/psutil/_psaix.py new file mode 100644 index 0000000..2391478 --- /dev/null +++ b/lib/psutil/_psaix.py @@ -0,0 +1,555 @@ +# Copyright (c) 2009, Giampaolo Rodola' +# Copyright (c) 2017, Arnon Yaari +# All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""AIX platform implementation.""" + +import functools +import glob +import os +import re +import subprocess +import sys +from collections import namedtuple + +from . import _common +from . import _psposix +from . import _psutil_aix as cext +from . import _psutil_posix as cext_posix +from ._common import NIC_DUPLEX_FULL +from ._common import NIC_DUPLEX_HALF +from ._common import NIC_DUPLEX_UNKNOWN +from ._common import AccessDenied +from ._common import NoSuchProcess +from ._common import ZombieProcess +from ._common import conn_to_ntuple +from ._common import get_procfs_path +from ._common import memoize_when_activated +from ._common import usage_percent +from ._compat import PY3 +from ._compat import FileNotFoundError +from ._compat import PermissionError +from ._compat import ProcessLookupError + + +__extra__all__ = ["PROCFS_PATH"] + + +# ===================================================================== +# --- globals +# ===================================================================== + + +HAS_THREADS = hasattr(cext, "proc_threads") +HAS_NET_IO_COUNTERS = hasattr(cext, "net_io_counters") +HAS_PROC_IO_COUNTERS = hasattr(cext, "proc_io_counters") + +PAGE_SIZE = cext_posix.getpagesize() +AF_LINK = cext_posix.AF_LINK + +PROC_STATUSES = { + cext.SIDL: _common.STATUS_IDLE, + cext.SZOMB: _common.STATUS_ZOMBIE, + cext.SACTIVE: _common.STATUS_RUNNING, + cext.SSWAP: _common.STATUS_RUNNING, # TODO what status is this? + cext.SSTOP: _common.STATUS_STOPPED, +} + +TCP_STATUSES = { + cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED, + cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT, + cext.TCPS_SYN_RCVD: _common.CONN_SYN_RECV, + cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1, + cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2, + cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT, + cext.TCPS_CLOSED: _common.CONN_CLOSE, + cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT, + cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK, + cext.TCPS_LISTEN: _common.CONN_LISTEN, + cext.TCPS_CLOSING: _common.CONN_CLOSING, + cext.PSUTIL_CONN_NONE: _common.CONN_NONE, +} + +proc_info_map = dict( + ppid=0, + rss=1, + vms=2, + create_time=3, + nice=4, + num_threads=5, + status=6, + ttynr=7) + + +# ===================================================================== +# --- named tuples +# ===================================================================== + + +# psutil.Process.memory_info() +pmem = namedtuple('pmem', ['rss', 'vms']) +# psutil.Process.memory_full_info() +pfullmem = pmem +# psutil.Process.cpu_times() +scputimes = namedtuple('scputimes', ['user', 'system', 'idle', 'iowait']) +# psutil.virtual_memory() +svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free']) + + +# ===================================================================== +# --- memory +# ===================================================================== + + +def virtual_memory(): + total, avail, free, pinned, inuse = cext.virtual_mem() + percent = usage_percent((total - avail), total, round_=1) + return svmem(total, avail, percent, inuse, free) + + +def swap_memory(): + """Swap system memory as a (total, used, free, sin, sout) tuple.""" + total, free, sin, sout = cext.swap_mem() + used = total - free + percent = usage_percent(used, total, round_=1) + return _common.sswap(total, used, free, percent, sin, sout) + + +# ===================================================================== +# --- CPU +# ===================================================================== + + +def cpu_times(): + """Return system-wide CPU times as a named tuple""" + ret = cext.per_cpu_times() + return scputimes(*[sum(x) for x in zip(*ret)]) + + +def per_cpu_times(): + """Return system per-CPU times as a list of named tuples""" + ret = cext.per_cpu_times() + return [scputimes(*x) for x in ret] + + +def cpu_count_logical(): + """Return the number of logical CPUs in the system.""" + try: + return os.sysconf("SC_NPROCESSORS_ONLN") + except ValueError: + # mimic os.cpu_count() behavior + return None + + +def cpu_count_cores(): + cmd = "lsdev -Cc processor" + p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + stdout, stderr = p.communicate() + if PY3: + stdout, stderr = [x.decode(sys.stdout.encoding) + for x in (stdout, stderr)] + if p.returncode != 0: + raise RuntimeError("%r command error\n%s" % (cmd, stderr)) + processors = stdout.strip().splitlines() + return len(processors) or None + + +def cpu_stats(): + """Return various CPU stats as a named tuple.""" + ctx_switches, interrupts, soft_interrupts, syscalls = cext.cpu_stats() + return _common.scpustats( + ctx_switches, interrupts, soft_interrupts, syscalls) + + +# ===================================================================== +# --- disks +# ===================================================================== + + +disk_io_counters = cext.disk_io_counters +disk_usage = _psposix.disk_usage + + +def disk_partitions(all=False): + """Return system disk partitions.""" + # TODO - the filtering logic should be better checked so that + # it tries to reflect 'df' as much as possible + retlist = [] + partitions = cext.disk_partitions() + for partition in partitions: + device, mountpoint, fstype, opts = partition + if device == 'none': + device = '' + if not all: + # Differently from, say, Linux, we don't have a list of + # common fs types so the best we can do, AFAIK, is to + # filter by filesystem having a total size > 0. + if not disk_usage(mountpoint).total: + continue + maxfile = maxpath = None # set later + ntuple = _common.sdiskpart(device, mountpoint, fstype, opts, + maxfile, maxpath) + retlist.append(ntuple) + return retlist + + +# ===================================================================== +# --- network +# ===================================================================== + + +net_if_addrs = cext_posix.net_if_addrs + +if HAS_NET_IO_COUNTERS: + net_io_counters = cext.net_io_counters + + +def net_connections(kind, _pid=-1): + """Return socket connections. If pid == -1 return system-wide + connections (as opposed to connections opened by one process only). + """ + cmap = _common.conn_tmap + if kind not in cmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in cmap]))) + families, types = _common.conn_tmap[kind] + rawlist = cext.net_connections(_pid) + ret = [] + for item in rawlist: + fd, fam, type_, laddr, raddr, status, pid = item + if fam not in families: + continue + if type_ not in types: + continue + nt = conn_to_ntuple(fd, fam, type_, laddr, raddr, status, + TCP_STATUSES, pid=pid if _pid == -1 else None) + ret.append(nt) + return ret + + +def net_if_stats(): + """Get NIC stats (isup, duplex, speed, mtu).""" + duplex_map = {"Full": NIC_DUPLEX_FULL, + "Half": NIC_DUPLEX_HALF} + names = set([x[0] for x in net_if_addrs()]) + ret = {} + for name in names: + mtu = cext_posix.net_if_mtu(name) + flags = cext_posix.net_if_flags(name) + + # try to get speed and duplex + # TODO: rewrite this in C (entstat forks, so use truss -f to follow. + # looks like it is using an undocumented ioctl?) + duplex = "" + speed = 0 + p = subprocess.Popen(["/usr/bin/entstat", "-d", name], + stdout=subprocess.PIPE, stderr=subprocess.PIPE) + stdout, stderr = p.communicate() + if PY3: + stdout, stderr = [x.decode(sys.stdout.encoding) + for x in (stdout, stderr)] + if p.returncode == 0: + re_result = re.search( + r"Running: (\d+) Mbps.*?(\w+) Duplex", stdout) + if re_result is not None: + speed = int(re_result.group(1)) + duplex = re_result.group(2) + + output_flags = ','.join(flags) + isup = 'running' in flags + duplex = duplex_map.get(duplex, NIC_DUPLEX_UNKNOWN) + ret[name] = _common.snicstats(isup, duplex, speed, mtu, output_flags) + return ret + + +# ===================================================================== +# --- other system functions +# ===================================================================== + + +def boot_time(): + """The system boot time expressed in seconds since the epoch.""" + return cext.boot_time() + + +def users(): + """Return currently connected users as a list of namedtuples.""" + retlist = [] + rawlist = cext.users() + localhost = (':0.0', ':0') + for item in rawlist: + user, tty, hostname, tstamp, user_process, pid = item + # note: the underlying C function includes entries about + # system boot, run level and others. We might want + # to use them in the future. + if not user_process: + continue + if hostname in localhost: + hostname = 'localhost' + nt = _common.suser(user, tty, hostname, tstamp, pid) + retlist.append(nt) + return retlist + + +# ===================================================================== +# --- processes +# ===================================================================== + + +def pids(): + """Returns a list of PIDs currently running on the system.""" + return [int(x) for x in os.listdir(get_procfs_path()) if x.isdigit()] + + +def pid_exists(pid): + """Check for the existence of a unix pid.""" + return os.path.exists(os.path.join(get_procfs_path(), str(pid), "psinfo")) + + +def wrap_exceptions(fun): + """Call callable into a try/except clause and translate ENOENT, + EACCES and EPERM in NoSuchProcess or AccessDenied exceptions. + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + try: + return fun(self, *args, **kwargs) + except (FileNotFoundError, ProcessLookupError): + # ENOENT (no such file or directory) gets raised on open(). + # ESRCH (no such process) can get raised on read() if + # process is gone in meantime. + if not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name) + else: + raise ZombieProcess(self.pid, self._name, self._ppid) + except PermissionError: + raise AccessDenied(self.pid, self._name) + return wrapper + + +class Process(object): + """Wrapper class around underlying C implementation.""" + + __slots__ = ["pid", "_name", "_ppid", "_procfs_path", "_cache"] + + def __init__(self, pid): + self.pid = pid + self._name = None + self._ppid = None + self._procfs_path = get_procfs_path() + + def oneshot_enter(self): + self._proc_basic_info.cache_activate(self) + self._proc_cred.cache_activate(self) + + def oneshot_exit(self): + self._proc_basic_info.cache_deactivate(self) + self._proc_cred.cache_deactivate(self) + + @wrap_exceptions + @memoize_when_activated + def _proc_basic_info(self): + return cext.proc_basic_info(self.pid, self._procfs_path) + + @wrap_exceptions + @memoize_when_activated + def _proc_cred(self): + return cext.proc_cred(self.pid, self._procfs_path) + + @wrap_exceptions + def name(self): + if self.pid == 0: + return "swapper" + # note: max 16 characters + return cext.proc_name(self.pid, self._procfs_path).rstrip("\x00") + + @wrap_exceptions + def exe(self): + # there is no way to get executable path in AIX other than to guess, + # and guessing is more complex than what's in the wrapping class + cmdline = self.cmdline() + if not cmdline: + return '' + exe = cmdline[0] + if os.path.sep in exe: + # relative or absolute path + if not os.path.isabs(exe): + # if cwd has changed, we're out of luck - this may be wrong! + exe = os.path.abspath(os.path.join(self.cwd(), exe)) + if (os.path.isabs(exe) and + os.path.isfile(exe) and + os.access(exe, os.X_OK)): + return exe + # not found, move to search in PATH using basename only + exe = os.path.basename(exe) + # search for exe name PATH + for path in os.environ["PATH"].split(":"): + possible_exe = os.path.abspath(os.path.join(path, exe)) + if (os.path.isfile(possible_exe) and + os.access(possible_exe, os.X_OK)): + return possible_exe + return '' + + @wrap_exceptions + def cmdline(self): + return cext.proc_args(self.pid) + + @wrap_exceptions + def environ(self): + return cext.proc_environ(self.pid) + + @wrap_exceptions + def create_time(self): + return self._proc_basic_info()[proc_info_map['create_time']] + + @wrap_exceptions + def num_threads(self): + return self._proc_basic_info()[proc_info_map['num_threads']] + + if HAS_THREADS: + @wrap_exceptions + def threads(self): + rawlist = cext.proc_threads(self.pid) + retlist = [] + for thread_id, utime, stime in rawlist: + ntuple = _common.pthread(thread_id, utime, stime) + retlist.append(ntuple) + # The underlying C implementation retrieves all OS threads + # and filters them by PID. At this point we can't tell whether + # an empty list means there were no connections for process or + # process is no longer active so we force NSP in case the PID + # is no longer there. + if not retlist: + # will raise NSP if process is gone + os.stat('%s/%s' % (self._procfs_path, self.pid)) + return retlist + + @wrap_exceptions + def connections(self, kind='inet'): + ret = net_connections(kind, _pid=self.pid) + # The underlying C implementation retrieves all OS connections + # and filters them by PID. At this point we can't tell whether + # an empty list means there were no connections for process or + # process is no longer active so we force NSP in case the PID + # is no longer there. + if not ret: + # will raise NSP if process is gone + os.stat('%s/%s' % (self._procfs_path, self.pid)) + return ret + + @wrap_exceptions + def nice_get(self): + return cext_posix.getpriority(self.pid) + + @wrap_exceptions + def nice_set(self, value): + return cext_posix.setpriority(self.pid, value) + + @wrap_exceptions + def ppid(self): + self._ppid = self._proc_basic_info()[proc_info_map['ppid']] + return self._ppid + + @wrap_exceptions + def uids(self): + real, effective, saved, _, _, _ = self._proc_cred() + return _common.puids(real, effective, saved) + + @wrap_exceptions + def gids(self): + _, _, _, real, effective, saved = self._proc_cred() + return _common.puids(real, effective, saved) + + @wrap_exceptions + def cpu_times(self): + cpu_times = cext.proc_cpu_times(self.pid, self._procfs_path) + return _common.pcputimes(*cpu_times) + + @wrap_exceptions + def terminal(self): + ttydev = self._proc_basic_info()[proc_info_map['ttynr']] + # convert from 64-bit dev_t to 32-bit dev_t and then map the device + ttydev = (((ttydev & 0x0000FFFF00000000) >> 16) | (ttydev & 0xFFFF)) + # try to match rdev of /dev/pts/* files ttydev + for dev in glob.glob("/dev/**/*"): + if os.stat(dev).st_rdev == ttydev: + return dev + return None + + @wrap_exceptions + def cwd(self): + procfs_path = self._procfs_path + try: + result = os.readlink("%s/%s/cwd" % (procfs_path, self.pid)) + return result.rstrip('/') + except FileNotFoundError: + os.stat("%s/%s" % (procfs_path, self.pid)) # raise NSP or AD + return None + + @wrap_exceptions + def memory_info(self): + ret = self._proc_basic_info() + rss = ret[proc_info_map['rss']] * 1024 + vms = ret[proc_info_map['vms']] * 1024 + return pmem(rss, vms) + + memory_full_info = memory_info + + @wrap_exceptions + def status(self): + code = self._proc_basic_info()[proc_info_map['status']] + # XXX is '?' legit? (we're not supposed to return it anyway) + return PROC_STATUSES.get(code, '?') + + def open_files(self): + # TODO rewrite without using procfiles (stat /proc/pid/fd/* and then + # find matching name of the inode) + p = subprocess.Popen(["/usr/bin/procfiles", "-n", str(self.pid)], + stdout=subprocess.PIPE, stderr=subprocess.PIPE) + stdout, stderr = p.communicate() + if PY3: + stdout, stderr = [x.decode(sys.stdout.encoding) + for x in (stdout, stderr)] + if "no such process" in stderr.lower(): + raise NoSuchProcess(self.pid, self._name) + procfiles = re.findall(r"(\d+): S_IFREG.*\s*.*name:(.*)\n", stdout) + retlist = [] + for fd, path in procfiles: + path = path.strip() + if path.startswith("//"): + path = path[1:] + if path.lower() == "cannot be retrieved": + continue + retlist.append(_common.popenfile(path, int(fd))) + return retlist + + @wrap_exceptions + def num_fds(self): + if self.pid == 0: # no /proc/0/fd + return 0 + return len(os.listdir("%s/%s/fd" % (self._procfs_path, self.pid))) + + @wrap_exceptions + def num_ctx_switches(self): + return _common.pctxsw( + *cext.proc_num_ctx_switches(self.pid)) + + @wrap_exceptions + def wait(self, timeout=None): + return _psposix.wait_pid(self.pid, timeout, self._name) + + if HAS_PROC_IO_COUNTERS: + @wrap_exceptions + def io_counters(self): + try: + rc, wc, rb, wb = cext.proc_io_counters(self.pid) + except OSError: + # if process is terminated, proc_io_counters returns OSError + # instead of NSP + if not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name) + raise + return _common.pio(rc, wc, rb, wb) diff --git a/lib/psutil/_psbsd.py b/lib/psutil/_psbsd.py new file mode 100644 index 0000000..a25c96c --- /dev/null +++ b/lib/psutil/_psbsd.py @@ -0,0 +1,927 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""FreeBSD, OpenBSD and NetBSD platforms implementation.""" + +import contextlib +import errno +import functools +import os +import xml.etree.ElementTree as ET +from collections import defaultdict +from collections import namedtuple + +from . import _common +from . import _psposix +from . import _psutil_bsd as cext +from . import _psutil_posix as cext_posix +from ._common import FREEBSD +from ._common import NETBSD +from ._common import OPENBSD +from ._common import AccessDenied +from ._common import NoSuchProcess +from ._common import ZombieProcess +from ._common import conn_tmap +from ._common import conn_to_ntuple +from ._common import memoize +from ._common import memoize_when_activated +from ._common import usage_percent +from ._compat import FileNotFoundError +from ._compat import PermissionError +from ._compat import ProcessLookupError +from ._compat import which + + +__extra__all__ = [] + + +# ===================================================================== +# --- globals +# ===================================================================== + + +if FREEBSD: + PROC_STATUSES = { + cext.SIDL: _common.STATUS_IDLE, + cext.SRUN: _common.STATUS_RUNNING, + cext.SSLEEP: _common.STATUS_SLEEPING, + cext.SSTOP: _common.STATUS_STOPPED, + cext.SZOMB: _common.STATUS_ZOMBIE, + cext.SWAIT: _common.STATUS_WAITING, + cext.SLOCK: _common.STATUS_LOCKED, + } +elif OPENBSD: + PROC_STATUSES = { + cext.SIDL: _common.STATUS_IDLE, + cext.SSLEEP: _common.STATUS_SLEEPING, + cext.SSTOP: _common.STATUS_STOPPED, + # According to /usr/include/sys/proc.h SZOMB is unused. + # test_zombie_process() shows that SDEAD is the right + # equivalent. Also it appears there's no equivalent of + # psutil.STATUS_DEAD. SDEAD really means STATUS_ZOMBIE. + # cext.SZOMB: _common.STATUS_ZOMBIE, + cext.SDEAD: _common.STATUS_ZOMBIE, + cext.SZOMB: _common.STATUS_ZOMBIE, + # From http://www.eecs.harvard.edu/~margo/cs161/videos/proc.h.txt + # OpenBSD has SRUN and SONPROC: SRUN indicates that a process + # is runnable but *not* yet running, i.e. is on a run queue. + # SONPROC indicates that the process is actually executing on + # a CPU, i.e. it is no longer on a run queue. + # As such we'll map SRUN to STATUS_WAKING and SONPROC to + # STATUS_RUNNING + cext.SRUN: _common.STATUS_WAKING, + cext.SONPROC: _common.STATUS_RUNNING, + } +elif NETBSD: + PROC_STATUSES = { + cext.SIDL: _common.STATUS_IDLE, + cext.SSLEEP: _common.STATUS_SLEEPING, + cext.SSTOP: _common.STATUS_STOPPED, + cext.SZOMB: _common.STATUS_ZOMBIE, + cext.SRUN: _common.STATUS_WAKING, + cext.SONPROC: _common.STATUS_RUNNING, + } + +TCP_STATUSES = { + cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED, + cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT, + cext.TCPS_SYN_RECEIVED: _common.CONN_SYN_RECV, + cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1, + cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2, + cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT, + cext.TCPS_CLOSED: _common.CONN_CLOSE, + cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT, + cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK, + cext.TCPS_LISTEN: _common.CONN_LISTEN, + cext.TCPS_CLOSING: _common.CONN_CLOSING, + cext.PSUTIL_CONN_NONE: _common.CONN_NONE, +} + +PAGESIZE = cext_posix.getpagesize() +AF_LINK = cext_posix.AF_LINK + +HAS_PER_CPU_TIMES = hasattr(cext, "per_cpu_times") +HAS_PROC_NUM_THREADS = hasattr(cext, "proc_num_threads") +HAS_PROC_OPEN_FILES = hasattr(cext, 'proc_open_files') +HAS_PROC_NUM_FDS = hasattr(cext, 'proc_num_fds') + +kinfo_proc_map = dict( + ppid=0, + status=1, + real_uid=2, + effective_uid=3, + saved_uid=4, + real_gid=5, + effective_gid=6, + saved_gid=7, + ttynr=8, + create_time=9, + ctx_switches_vol=10, + ctx_switches_unvol=11, + read_io_count=12, + write_io_count=13, + user_time=14, + sys_time=15, + ch_user_time=16, + ch_sys_time=17, + rss=18, + vms=19, + memtext=20, + memdata=21, + memstack=22, + cpunum=23, + name=24, +) + + +# ===================================================================== +# --- named tuples +# ===================================================================== + + +# psutil.virtual_memory() +svmem = namedtuple( + 'svmem', ['total', 'available', 'percent', 'used', 'free', + 'active', 'inactive', 'buffers', 'cached', 'shared', 'wired']) +# psutil.cpu_times() +scputimes = namedtuple( + 'scputimes', ['user', 'nice', 'system', 'idle', 'irq']) +# psutil.Process.memory_info() +pmem = namedtuple('pmem', ['rss', 'vms', 'text', 'data', 'stack']) +# psutil.Process.memory_full_info() +pfullmem = pmem +# psutil.Process.cpu_times() +pcputimes = namedtuple('pcputimes', + ['user', 'system', 'children_user', 'children_system']) +# psutil.Process.memory_maps(grouped=True) +pmmap_grouped = namedtuple( + 'pmmap_grouped', 'path rss, private, ref_count, shadow_count') +# psutil.Process.memory_maps(grouped=False) +pmmap_ext = namedtuple( + 'pmmap_ext', 'addr, perms path rss, private, ref_count, shadow_count') +# psutil.disk_io_counters() +if FREEBSD: + sdiskio = namedtuple('sdiskio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes', + 'read_time', 'write_time', + 'busy_time']) +else: + sdiskio = namedtuple('sdiskio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes']) + + +# ===================================================================== +# --- memory +# ===================================================================== + + +def virtual_memory(): + """System virtual memory as a namedtuple.""" + mem = cext.virtual_mem() + total, free, active, inactive, wired, cached, buffers, shared = mem + if NETBSD: + # On NetBSD buffers and shared mem is determined via /proc. + # The C ext set them to 0. + with open('/proc/meminfo', 'rb') as f: + for line in f: + if line.startswith(b'Buffers:'): + buffers = int(line.split()[1]) * 1024 + elif line.startswith(b'MemShared:'): + shared = int(line.split()[1]) * 1024 + elif line.startswith(b'Cached:'): + cached = int(line.split()[1]) * 1024 + avail = inactive + cached + free + used = active + wired + cached + percent = usage_percent((total - avail), total, round_=1) + return svmem(total, avail, percent, used, free, + active, inactive, buffers, cached, shared, wired) + + +def swap_memory(): + """System swap memory as (total, used, free, sin, sout) namedtuple.""" + total, used, free, sin, sout = cext.swap_mem() + percent = usage_percent(used, total, round_=1) + return _common.sswap(total, used, free, percent, sin, sout) + + +# ===================================================================== +# --- CPU +# ===================================================================== + + +def cpu_times(): + """Return system per-CPU times as a namedtuple""" + user, nice, system, idle, irq = cext.cpu_times() + return scputimes(user, nice, system, idle, irq) + + +if HAS_PER_CPU_TIMES: + def per_cpu_times(): + """Return system CPU times as a namedtuple""" + ret = [] + for cpu_t in cext.per_cpu_times(): + user, nice, system, idle, irq = cpu_t + item = scputimes(user, nice, system, idle, irq) + ret.append(item) + return ret +else: + # XXX + # Ok, this is very dirty. + # On FreeBSD < 8 we cannot gather per-cpu information, see: + # https://github.com/giampaolo/psutil/issues/226 + # If num cpus > 1, on first call we return single cpu times to avoid a + # crash at psutil import time. + # Next calls will fail with NotImplementedError + def per_cpu_times(): + """Return system CPU times as a namedtuple""" + if cpu_count_logical() == 1: + return [cpu_times()] + if per_cpu_times.__called__: + raise NotImplementedError("supported only starting from FreeBSD 8") + per_cpu_times.__called__ = True + return [cpu_times()] + + per_cpu_times.__called__ = False + + +def cpu_count_logical(): + """Return the number of logical CPUs in the system.""" + return cext.cpu_count_logical() + + +if OPENBSD or NETBSD: + def cpu_count_cores(): + # OpenBSD and NetBSD do not implement this. + return 1 if cpu_count_logical() == 1 else None +else: + def cpu_count_cores(): + """Return the number of CPU cores in the system.""" + # From the C module we'll get an XML string similar to this: + # http://manpages.ubuntu.com/manpages/precise/man4/smp.4freebsd.html + # We may get None in case "sysctl kern.sched.topology_spec" + # is not supported on this BSD version, in which case we'll mimic + # os.cpu_count() and return None. + ret = None + s = cext.cpu_topology() + if s is not None: + # get rid of padding chars appended at the end of the string + index = s.rfind("</groups>") + if index != -1: + s = s[:index + 9] + root = ET.fromstring(s) + try: + ret = len(root.findall('group/children/group/cpu')) or None + finally: + # needed otherwise it will memleak + root.clear() + if not ret: + # If logical CPUs == 1 it's obvious we' have only 1 core. + if cpu_count_logical() == 1: + return 1 + return ret + + +def cpu_stats(): + """Return various CPU stats as a named tuple.""" + if FREEBSD: + # Note: the C ext is returning some metrics we are not exposing: + # traps. + ctxsw, intrs, soft_intrs, syscalls, traps = cext.cpu_stats() + elif NETBSD: + # XXX + # Note about intrs: the C extension returns 0. intrs + # can be determined via /proc/stat; it has the same value as + # soft_intrs thought so the kernel is faking it (?). + # + # Note about syscalls: the C extension always sets it to 0 (?). + # + # Note: the C ext is returning some metrics we are not exposing: + # traps, faults and forks. + ctxsw, intrs, soft_intrs, syscalls, traps, faults, forks = \ + cext.cpu_stats() + with open('/proc/stat', 'rb') as f: + for line in f: + if line.startswith(b'intr'): + intrs = int(line.split()[1]) + elif OPENBSD: + # Note: the C ext is returning some metrics we are not exposing: + # traps, faults and forks. + ctxsw, intrs, soft_intrs, syscalls, traps, faults, forks = \ + cext.cpu_stats() + return _common.scpustats(ctxsw, intrs, soft_intrs, syscalls) + + +if FREEBSD: + def cpu_freq(): + """Return frequency metrics for CPUs. As of Dec 2018 only + CPU 0 appears to be supported by FreeBSD and all other cores + match the frequency of CPU 0. + """ + ret = [] + num_cpus = cpu_count_logical() + for cpu in range(num_cpus): + try: + current, available_freq = cext.cpu_freq(cpu) + except NotImplementedError: + continue + if available_freq: + try: + min_freq = int(available_freq.split(" ")[-1].split("/")[0]) + except (IndexError, ValueError): + min_freq = None + try: + max_freq = int(available_freq.split(" ")[0].split("/")[0]) + except (IndexError, ValueError): + max_freq = None + ret.append(_common.scpufreq(current, min_freq, max_freq)) + return ret +elif OPENBSD: + def cpu_freq(): + curr = float(cext.cpu_freq()) + return [_common.scpufreq(curr, 0.0, 0.0)] + + +# ===================================================================== +# --- disks +# ===================================================================== + + +def disk_partitions(all=False): + """Return mounted disk partitions as a list of namedtuples. + 'all' argument is ignored, see: + https://github.com/giampaolo/psutil/issues/906 + """ + retlist = [] + partitions = cext.disk_partitions() + for partition in partitions: + device, mountpoint, fstype, opts = partition + maxfile = maxpath = None # set later + ntuple = _common.sdiskpart(device, mountpoint, fstype, opts, + maxfile, maxpath) + retlist.append(ntuple) + return retlist + + +disk_usage = _psposix.disk_usage +disk_io_counters = cext.disk_io_counters + + +# ===================================================================== +# --- network +# ===================================================================== + + +net_io_counters = cext.net_io_counters +net_if_addrs = cext_posix.net_if_addrs + + +def net_if_stats(): + """Get NIC stats (isup, duplex, speed, mtu).""" + names = net_io_counters().keys() + ret = {} + for name in names: + try: + mtu = cext_posix.net_if_mtu(name) + flags = cext_posix.net_if_flags(name) + duplex, speed = cext_posix.net_if_duplex_speed(name) + except OSError as err: + # https://github.com/giampaolo/psutil/issues/1279 + if err.errno != errno.ENODEV: + raise + else: + if hasattr(_common, 'NicDuplex'): + duplex = _common.NicDuplex(duplex) + output_flags = ','.join(flags) + isup = 'running' in flags + ret[name] = _common.snicstats(isup, duplex, speed, mtu, + output_flags) + return ret + + +def net_connections(kind): + """System-wide network connections.""" + if OPENBSD: + ret = [] + for pid in pids(): + try: + cons = Process(pid).connections(kind) + except (NoSuchProcess, ZombieProcess): + continue + else: + for conn in cons: + conn = list(conn) + conn.append(pid) + ret.append(_common.sconn(*conn)) + return ret + + if kind not in _common.conn_tmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in conn_tmap]))) + families, types = conn_tmap[kind] + ret = set() + if NETBSD: + rawlist = cext.net_connections(-1) + else: + rawlist = cext.net_connections() + for item in rawlist: + fd, fam, type, laddr, raddr, status, pid = item + # TODO: apply filter at C level + if fam in families and type in types: + nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, + TCP_STATUSES, pid) + ret.add(nt) + return list(ret) + + +# ===================================================================== +# --- sensors +# ===================================================================== + + +if FREEBSD: + + def sensors_battery(): + """Return battery info.""" + try: + percent, minsleft, power_plugged = cext.sensors_battery() + except NotImplementedError: + # See: https://github.com/giampaolo/psutil/issues/1074 + return None + power_plugged = power_plugged == 1 + if power_plugged: + secsleft = _common.POWER_TIME_UNLIMITED + elif minsleft == -1: + secsleft = _common.POWER_TIME_UNKNOWN + else: + secsleft = minsleft * 60 + return _common.sbattery(percent, secsleft, power_plugged) + + def sensors_temperatures(): + """Return CPU cores temperatures if available, else an empty dict.""" + ret = defaultdict(list) + num_cpus = cpu_count_logical() + for cpu in range(num_cpus): + try: + current, high = cext.sensors_cpu_temperature(cpu) + if high <= 0: + high = None + name = "Core %s" % cpu + ret["coretemp"].append( + _common.shwtemp(name, current, high, high)) + except NotImplementedError: + pass + + return ret + + +# ===================================================================== +# --- other system functions +# ===================================================================== + + +def boot_time(): + """The system boot time expressed in seconds since the epoch.""" + return cext.boot_time() + + +def users(): + """Return currently connected users as a list of namedtuples.""" + retlist = [] + rawlist = cext.users() + for item in rawlist: + user, tty, hostname, tstamp, pid = item + if pid == -1: + assert OPENBSD + pid = None + if tty == '~': + continue # reboot or shutdown + nt = _common.suser(user, tty or None, hostname, tstamp, pid) + retlist.append(nt) + return retlist + + +# ===================================================================== +# --- processes +# ===================================================================== + + +@memoize +def _pid_0_exists(): + try: + Process(0).name() + except NoSuchProcess: + return False + except AccessDenied: + return True + else: + return True + + +def pids(): + """Returns a list of PIDs currently running on the system.""" + ret = cext.pids() + if OPENBSD and (0 not in ret) and _pid_0_exists(): + # On OpenBSD the kernel does not return PID 0 (neither does + # ps) but it's actually querable (Process(0) will succeed). + ret.insert(0, 0) + return ret + + +if OPENBSD or NETBSD: + def pid_exists(pid): + """Return True if pid exists.""" + exists = _psposix.pid_exists(pid) + if not exists: + # We do this because _psposix.pid_exists() lies in case of + # zombie processes. + return pid in pids() + else: + return True +else: + pid_exists = _psposix.pid_exists + + +def is_zombie(pid): + try: + st = cext.proc_oneshot_info(pid)[kinfo_proc_map['status']] + return st == cext.SZOMB + except Exception: + return False + + +def wrap_exceptions(fun): + """Decorator which translates bare OSError exceptions into + NoSuchProcess and AccessDenied. + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + try: + return fun(self, *args, **kwargs) + except ProcessLookupError: + if is_zombie(self.pid): + raise ZombieProcess(self.pid, self._name, self._ppid) + else: + raise NoSuchProcess(self.pid, self._name) + except PermissionError: + raise AccessDenied(self.pid, self._name) + except OSError: + if self.pid == 0: + if 0 in pids(): + raise AccessDenied(self.pid, self._name) + else: + raise + raise + return wrapper + + +@contextlib.contextmanager +def wrap_exceptions_procfs(inst): + """Same as above, for routines relying on reading /proc fs.""" + try: + yield + except (ProcessLookupError, FileNotFoundError): + # ENOENT (no such file or directory) gets raised on open(). + # ESRCH (no such process) can get raised on read() if + # process is gone in meantime. + if is_zombie(inst.pid): + raise ZombieProcess(inst.pid, inst._name, inst._ppid) + else: + raise NoSuchProcess(inst.pid, inst._name) + except PermissionError: + raise AccessDenied(inst.pid, inst._name) + + +class Process(object): + """Wrapper class around underlying C implementation.""" + + __slots__ = ["pid", "_name", "_ppid", "_cache"] + + def __init__(self, pid): + self.pid = pid + self._name = None + self._ppid = None + + def _assert_alive(self): + """Raise NSP if the process disappeared on us.""" + # For those C function who do not raise NSP, possibly returning + # incorrect or incomplete result. + cext.proc_name(self.pid) + + @wrap_exceptions + @memoize_when_activated + def oneshot(self): + """Retrieves multiple process info in one shot as a raw tuple.""" + ret = cext.proc_oneshot_info(self.pid) + assert len(ret) == len(kinfo_proc_map) + return ret + + def oneshot_enter(self): + self.oneshot.cache_activate(self) + + def oneshot_exit(self): + self.oneshot.cache_deactivate(self) + + @wrap_exceptions + def name(self): + name = self.oneshot()[kinfo_proc_map['name']] + return name if name is not None else cext.proc_name(self.pid) + + @wrap_exceptions + def exe(self): + if FREEBSD: + if self.pid == 0: + return '' # else NSP + return cext.proc_exe(self.pid) + elif NETBSD: + if self.pid == 0: + # /proc/0 dir exists but /proc/0/exe doesn't + return "" + with wrap_exceptions_procfs(self): + return os.readlink("/proc/%s/exe" % self.pid) + else: + # OpenBSD: exe cannot be determined; references: + # https://chromium.googlesource.com/chromium/src/base/+/ + # master/base_paths_posix.cc + # We try our best guess by using which against the first + # cmdline arg (may return None). + cmdline = self.cmdline() + if cmdline: + return which(cmdline[0]) or "" + else: + return "" + + @wrap_exceptions + def cmdline(self): + if OPENBSD and self.pid == 0: + return [] # ...else it crashes + elif NETBSD: + # XXX - most of the times the underlying sysctl() call on Net + # and Open BSD returns a truncated string. + # Also /proc/pid/cmdline behaves the same so it looks + # like this is a kernel bug. + try: + return cext.proc_cmdline(self.pid) + except OSError as err: + if err.errno == errno.EINVAL: + if is_zombie(self.pid): + raise ZombieProcess(self.pid, self._name, self._ppid) + elif not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name, self._ppid) + else: + # XXX: this happens with unicode tests. It means the C + # routine is unable to decode invalid unicode chars. + return [] + else: + raise + else: + return cext.proc_cmdline(self.pid) + + @wrap_exceptions + def environ(self): + return cext.proc_environ(self.pid) + + @wrap_exceptions + def terminal(self): + tty_nr = self.oneshot()[kinfo_proc_map['ttynr']] + tmap = _psposix.get_terminal_map() + try: + return tmap[tty_nr] + except KeyError: + return None + + @wrap_exceptions + def ppid(self): + self._ppid = self.oneshot()[kinfo_proc_map['ppid']] + return self._ppid + + @wrap_exceptions + def uids(self): + rawtuple = self.oneshot() + return _common.puids( + rawtuple[kinfo_proc_map['real_uid']], + rawtuple[kinfo_proc_map['effective_uid']], + rawtuple[kinfo_proc_map['saved_uid']]) + + @wrap_exceptions + def gids(self): + rawtuple = self.oneshot() + return _common.pgids( + rawtuple[kinfo_proc_map['real_gid']], + rawtuple[kinfo_proc_map['effective_gid']], + rawtuple[kinfo_proc_map['saved_gid']]) + + @wrap_exceptions + def cpu_times(self): + rawtuple = self.oneshot() + return _common.pcputimes( + rawtuple[kinfo_proc_map['user_time']], + rawtuple[kinfo_proc_map['sys_time']], + rawtuple[kinfo_proc_map['ch_user_time']], + rawtuple[kinfo_proc_map['ch_sys_time']]) + + if FREEBSD: + @wrap_exceptions + def cpu_num(self): + return self.oneshot()[kinfo_proc_map['cpunum']] + + @wrap_exceptions + def memory_info(self): + rawtuple = self.oneshot() + return pmem( + rawtuple[kinfo_proc_map['rss']], + rawtuple[kinfo_proc_map['vms']], + rawtuple[kinfo_proc_map['memtext']], + rawtuple[kinfo_proc_map['memdata']], + rawtuple[kinfo_proc_map['memstack']]) + + memory_full_info = memory_info + + @wrap_exceptions + def create_time(self): + return self.oneshot()[kinfo_proc_map['create_time']] + + @wrap_exceptions + def num_threads(self): + if HAS_PROC_NUM_THREADS: + # FreeBSD + return cext.proc_num_threads(self.pid) + else: + return len(self.threads()) + + @wrap_exceptions + def num_ctx_switches(self): + rawtuple = self.oneshot() + return _common.pctxsw( + rawtuple[kinfo_proc_map['ctx_switches_vol']], + rawtuple[kinfo_proc_map['ctx_switches_unvol']]) + + @wrap_exceptions + def threads(self): + # Note: on OpenSBD this (/dev/mem) requires root access. + rawlist = cext.proc_threads(self.pid) + retlist = [] + for thread_id, utime, stime in rawlist: + ntuple = _common.pthread(thread_id, utime, stime) + retlist.append(ntuple) + if OPENBSD: + self._assert_alive() + return retlist + + @wrap_exceptions + def connections(self, kind='inet'): + if kind not in conn_tmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in conn_tmap]))) + + if NETBSD: + families, types = conn_tmap[kind] + ret = [] + rawlist = cext.net_connections(self.pid) + for item in rawlist: + fd, fam, type, laddr, raddr, status, pid = item + assert pid == self.pid + if fam in families and type in types: + nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, + TCP_STATUSES) + ret.append(nt) + self._assert_alive() + return list(ret) + + families, types = conn_tmap[kind] + rawlist = cext.proc_connections(self.pid, families, types) + ret = [] + for item in rawlist: + fd, fam, type, laddr, raddr, status = item + nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, + TCP_STATUSES) + ret.append(nt) + + if OPENBSD: + self._assert_alive() + + return ret + + @wrap_exceptions + def wait(self, timeout=None): + return _psposix.wait_pid(self.pid, timeout, self._name) + + @wrap_exceptions + def nice_get(self): + return cext_posix.getpriority(self.pid) + + @wrap_exceptions + def nice_set(self, value): + return cext_posix.setpriority(self.pid, value) + + @wrap_exceptions + def status(self): + code = self.oneshot()[kinfo_proc_map['status']] + # XXX is '?' legit? (we're not supposed to return it anyway) + return PROC_STATUSES.get(code, '?') + + @wrap_exceptions + def io_counters(self): + rawtuple = self.oneshot() + return _common.pio( + rawtuple[kinfo_proc_map['read_io_count']], + rawtuple[kinfo_proc_map['write_io_count']], + -1, + -1) + + @wrap_exceptions + def cwd(self): + """Return process current working directory.""" + # sometimes we get an empty string, in which case we turn + # it into None + if OPENBSD and self.pid == 0: + return None # ...else it would raise EINVAL + elif NETBSD or HAS_PROC_OPEN_FILES: + # FreeBSD < 8 does not support functions based on + # kinfo_getfile() and kinfo_getvmmap() + return cext.proc_cwd(self.pid) or None + else: + raise NotImplementedError( + "supported only starting from FreeBSD 8" if + FREEBSD else "") + + nt_mmap_grouped = namedtuple( + 'mmap', 'path rss, private, ref_count, shadow_count') + nt_mmap_ext = namedtuple( + 'mmap', 'addr, perms path rss, private, ref_count, shadow_count') + + def _not_implemented(self): + raise NotImplementedError + + # FreeBSD < 8 does not support functions based on kinfo_getfile() + # and kinfo_getvmmap() + if HAS_PROC_OPEN_FILES: + @wrap_exceptions + def open_files(self): + """Return files opened by process as a list of namedtuples.""" + rawlist = cext.proc_open_files(self.pid) + return [_common.popenfile(path, fd) for path, fd in rawlist] + else: + open_files = _not_implemented + + # FreeBSD < 8 does not support functions based on kinfo_getfile() + # and kinfo_getvmmap() + if HAS_PROC_NUM_FDS: + @wrap_exceptions + def num_fds(self): + """Return the number of file descriptors opened by this process.""" + ret = cext.proc_num_fds(self.pid) + if NETBSD: + self._assert_alive() + return ret + else: + num_fds = _not_implemented + + # --- FreeBSD only APIs + + if FREEBSD: + + @wrap_exceptions + def cpu_affinity_get(self): + return cext.proc_cpu_affinity_get(self.pid) + + @wrap_exceptions + def cpu_affinity_set(self, cpus): + # Pre-emptively check if CPUs are valid because the C + # function has a weird behavior in case of invalid CPUs, + # see: https://github.com/giampaolo/psutil/issues/586 + allcpus = tuple(range(len(per_cpu_times()))) + for cpu in cpus: + if cpu not in allcpus: + raise ValueError("invalid CPU #%i (choose between %s)" + % (cpu, allcpus)) + try: + cext.proc_cpu_affinity_set(self.pid, cpus) + except OSError as err: + # 'man cpuset_setaffinity' about EDEADLK: + # <<the call would leave a thread without a valid CPU to run + # on because the set does not overlap with the thread's + # anonymous mask>> + if err.errno in (errno.EINVAL, errno.EDEADLK): + for cpu in cpus: + if cpu not in allcpus: + raise ValueError( + "invalid CPU #%i (choose between %s)" % ( + cpu, allcpus)) + raise + + @wrap_exceptions + def memory_maps(self): + return cext.proc_memory_maps(self.pid) + + @wrap_exceptions + def rlimit(self, resource, limits=None): + if limits is None: + return cext.proc_getrlimit(self.pid, resource) + else: + if len(limits) != 2: + raise ValueError( + "second argument must be a (soft, hard) tuple, " + "got %s" % repr(limits)) + soft, hard = limits + return cext.proc_setrlimit(self.pid, resource, soft, hard) diff --git a/lib/psutil/_pslinux.py b/lib/psutil/_pslinux.py new file mode 100644 index 0000000..9dc9643 --- /dev/null +++ b/lib/psutil/_pslinux.py @@ -0,0 +1,2257 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Linux platform implementation.""" + +from __future__ import division + +import base64 +import collections +import errno +import functools +import glob +import os +import re +import socket +import struct +import sys +import traceback +import warnings +from collections import defaultdict +from collections import namedtuple + +from . import _common +from . import _psposix +from . import _psutil_linux as cext +from . import _psutil_posix as cext_posix +from ._common import NIC_DUPLEX_FULL +from ._common import NIC_DUPLEX_HALF +from ._common import NIC_DUPLEX_UNKNOWN +from ._common import AccessDenied +from ._common import NoSuchProcess +from ._common import ZombieProcess +from ._common import bcat +from ._common import cat +from ._common import debug +from ._common import decode +from ._common import get_procfs_path +from ._common import isfile_strict +from ._common import memoize +from ._common import memoize_when_activated +from ._common import open_binary +from ._common import open_text +from ._common import parse_environ_block +from ._common import path_exists_strict +from ._common import supports_ipv6 +from ._common import usage_percent +from ._compat import PY3 +from ._compat import FileNotFoundError +from ._compat import PermissionError +from ._compat import ProcessLookupError +from ._compat import b +from ._compat import basestring + + +if sys.version_info >= (3, 4): + import enum +else: + enum = None + + +__extra__all__ = [ + # + 'PROCFS_PATH', + # io prio constants + "IOPRIO_CLASS_NONE", "IOPRIO_CLASS_RT", "IOPRIO_CLASS_BE", + "IOPRIO_CLASS_IDLE", + # connection status constants + "CONN_ESTABLISHED", "CONN_SYN_SENT", "CONN_SYN_RECV", "CONN_FIN_WAIT1", + "CONN_FIN_WAIT2", "CONN_TIME_WAIT", "CONN_CLOSE", "CONN_CLOSE_WAIT", + "CONN_LAST_ACK", "CONN_LISTEN", "CONN_CLOSING", ] + + +# ===================================================================== +# --- globals +# ===================================================================== + + +POWER_SUPPLY_PATH = "/sys/class/power_supply" +HAS_PROC_SMAPS = os.path.exists('/proc/%s/smaps' % os.getpid()) +HAS_PROC_SMAPS_ROLLUP = os.path.exists('/proc/%s/smaps_rollup' % os.getpid()) +HAS_PROC_IO_PRIORITY = hasattr(cext, "proc_ioprio_get") +HAS_CPU_AFFINITY = hasattr(cext, "proc_cpu_affinity_get") + +# Number of clock ticks per second +CLOCK_TICKS = os.sysconf("SC_CLK_TCK") +PAGESIZE = cext_posix.getpagesize() +BOOT_TIME = None # set later +LITTLE_ENDIAN = sys.byteorder == 'little' + +# "man iostat" states that sectors are equivalent with blocks and have +# a size of 512 bytes. Despite this value can be queried at runtime +# via /sys/block/{DISK}/queue/hw_sector_size and results may vary +# between 1k, 2k, or 4k... 512 appears to be a magic constant used +# throughout Linux source code: +# * https://stackoverflow.com/a/38136179/376587 +# * https://lists.gt.net/linux/kernel/2241060 +# * https://github.com/giampaolo/psutil/issues/1305 +# * https://github.com/torvalds/linux/blob/ +# 4f671fe2f9523a1ea206f63fe60a7c7b3a56d5c7/include/linux/bio.h#L99 +# * https://lkml.org/lkml/2015/8/17/234 +DISK_SECTOR_SIZE = 512 + +if enum is None: + AF_LINK = socket.AF_PACKET +else: + AddressFamily = enum.IntEnum('AddressFamily', + {'AF_LINK': int(socket.AF_PACKET)}) + AF_LINK = AddressFamily.AF_LINK + +# ioprio_* constants http://linux.die.net/man/2/ioprio_get +if enum is None: + IOPRIO_CLASS_NONE = 0 + IOPRIO_CLASS_RT = 1 + IOPRIO_CLASS_BE = 2 + IOPRIO_CLASS_IDLE = 3 +else: + class IOPriority(enum.IntEnum): + IOPRIO_CLASS_NONE = 0 + IOPRIO_CLASS_RT = 1 + IOPRIO_CLASS_BE = 2 + IOPRIO_CLASS_IDLE = 3 + + globals().update(IOPriority.__members__) + +# See: +# https://github.com/torvalds/linux/blame/master/fs/proc/array.c +# ...and (TASK_* constants): +# https://github.com/torvalds/linux/blob/master/include/linux/sched.h +PROC_STATUSES = { + "R": _common.STATUS_RUNNING, + "S": _common.STATUS_SLEEPING, + "D": _common.STATUS_DISK_SLEEP, + "T": _common.STATUS_STOPPED, + "t": _common.STATUS_TRACING_STOP, + "Z": _common.STATUS_ZOMBIE, + "X": _common.STATUS_DEAD, + "x": _common.STATUS_DEAD, + "K": _common.STATUS_WAKE_KILL, + "W": _common.STATUS_WAKING, + "I": _common.STATUS_IDLE, + "P": _common.STATUS_PARKED, +} + +# https://github.com/torvalds/linux/blob/master/include/net/tcp_states.h +TCP_STATUSES = { + "01": _common.CONN_ESTABLISHED, + "02": _common.CONN_SYN_SENT, + "03": _common.CONN_SYN_RECV, + "04": _common.CONN_FIN_WAIT1, + "05": _common.CONN_FIN_WAIT2, + "06": _common.CONN_TIME_WAIT, + "07": _common.CONN_CLOSE, + "08": _common.CONN_CLOSE_WAIT, + "09": _common.CONN_LAST_ACK, + "0A": _common.CONN_LISTEN, + "0B": _common.CONN_CLOSING +} + + +# ===================================================================== +# --- named tuples +# ===================================================================== + + +# psutil.virtual_memory() +svmem = namedtuple( + 'svmem', ['total', 'available', 'percent', 'used', 'free', + 'active', 'inactive', 'buffers', 'cached', 'shared', 'slab']) +# psutil.disk_io_counters() +sdiskio = namedtuple( + 'sdiskio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes', + 'read_time', 'write_time', + 'read_merged_count', 'write_merged_count', + 'busy_time']) +# psutil.Process().open_files() +popenfile = namedtuple( + 'popenfile', ['path', 'fd', 'position', 'mode', 'flags']) +# psutil.Process().memory_info() +pmem = namedtuple('pmem', 'rss vms shared text lib data dirty') +# psutil.Process().memory_full_info() +pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', 'pss', 'swap')) +# psutil.Process().memory_maps(grouped=True) +pmmap_grouped = namedtuple( + 'pmmap_grouped', + ['path', 'rss', 'size', 'pss', 'shared_clean', 'shared_dirty', + 'private_clean', 'private_dirty', 'referenced', 'anonymous', 'swap']) +# psutil.Process().memory_maps(grouped=False) +pmmap_ext = namedtuple( + 'pmmap_ext', 'addr perms ' + ' '.join(pmmap_grouped._fields)) +# psutil.Process.io_counters() +pio = namedtuple('pio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes', + 'read_chars', 'write_chars']) +# psutil.Process.cpu_times() +pcputimes = namedtuple('pcputimes', + ['user', 'system', 'children_user', 'children_system', + 'iowait']) + + +# ===================================================================== +# --- utils +# ===================================================================== + + +def readlink(path): + """Wrapper around os.readlink().""" + assert isinstance(path, basestring), path + path = os.readlink(path) + # readlink() might return paths containing null bytes ('\x00') + # resulting in "TypeError: must be encoded string without NULL + # bytes, not str" errors when the string is passed to other + # fs-related functions (os.*, open(), ...). + # Apparently everything after '\x00' is garbage (we can have + # ' (deleted)', 'new' and possibly others), see: + # https://github.com/giampaolo/psutil/issues/717 + path = path.split('\x00')[0] + # Certain paths have ' (deleted)' appended. Usually this is + # bogus as the file actually exists. Even if it doesn't we + # don't care. + if path.endswith(' (deleted)') and not path_exists_strict(path): + path = path[:-10] + return path + + +def file_flags_to_mode(flags): + """Convert file's open() flags into a readable string. + Used by Process.open_files(). + """ + modes_map = {os.O_RDONLY: 'r', os.O_WRONLY: 'w', os.O_RDWR: 'w+'} + mode = modes_map[flags & (os.O_RDONLY | os.O_WRONLY | os.O_RDWR)] + if flags & os.O_APPEND: + mode = mode.replace('w', 'a', 1) + mode = mode.replace('w+', 'r+') + # possible values: r, w, a, r+, a+ + return mode + + +def is_storage_device(name): + """Return True if the given name refers to a root device (e.g. + "sda", "nvme0n1") as opposed to a logical partition (e.g. "sda1", + "nvme0n1p1"). If name is a virtual device (e.g. "loop1", "ram") + return True. + """ + # Re-adapted from iostat source code, see: + # https://github.com/sysstat/sysstat/blob/ + # 97912938cd476645b267280069e83b1c8dc0e1c7/common.c#L208 + # Some devices may have a slash in their name (e.g. cciss/c0d0...). + name = name.replace('/', '!') + including_virtual = True + if including_virtual: + path = "/sys/block/%s" % name + else: + path = "/sys/block/%s/device" % name + return os.access(path, os.F_OK) + + +@memoize +def set_scputimes_ntuple(procfs_path): + """Set a namedtuple of variable fields depending on the CPU times + available on this Linux kernel version which may be: + (user, nice, system, idle, iowait, irq, softirq, [steal, [guest, + [guest_nice]]]) + Used by cpu_times() function. + """ + global scputimes + with open_binary('%s/stat' % procfs_path) as f: + values = f.readline().split()[1:] + fields = ['user', 'nice', 'system', 'idle', 'iowait', 'irq', 'softirq'] + vlen = len(values) + if vlen >= 8: + # Linux >= 2.6.11 + fields.append('steal') + if vlen >= 9: + # Linux >= 2.6.24 + fields.append('guest') + if vlen >= 10: + # Linux >= 3.2.0 + fields.append('guest_nice') + scputimes = namedtuple('scputimes', fields) + + +try: + set_scputimes_ntuple("/proc") +except Exception: # pragma: no cover + # Don't want to crash at import time. + traceback.print_exc() + scputimes = namedtuple('scputimes', 'user system idle')(0.0, 0.0, 0.0) + + +# ===================================================================== +# --- prlimit +# ===================================================================== + +# Backport of resource.prlimit() for Python 2. Originally this was done +# in C, but CentOS-6 which we use to create manylinux wheels is too old +# and does not support prlimit() syscall. As such the resulting wheel +# would not include prlimit(), even when installed on newer systems. +# This is the only part of psutil using ctypes. + +prlimit = None +try: + from resource import prlimit # python >= 3.4 +except ImportError: + import ctypes + + libc = ctypes.CDLL(None, use_errno=True) + + if hasattr(libc, "prlimit"): + + def prlimit(pid, resource_, limits=None): + class StructRlimit(ctypes.Structure): + _fields_ = [('rlim_cur', ctypes.c_longlong), + ('rlim_max', ctypes.c_longlong)] + + current = StructRlimit() + if limits is None: + # get + ret = libc.prlimit(pid, resource_, None, ctypes.byref(current)) + else: + # set + new = StructRlimit() + new.rlim_cur = limits[0] + new.rlim_max = limits[1] + ret = libc.prlimit( + pid, resource_, ctypes.byref(new), ctypes.byref(current)) + + if ret != 0: + errno = ctypes.get_errno() + raise OSError(errno, os.strerror(errno)) + return (current.rlim_cur, current.rlim_max) + + +if prlimit is not None: + __extra__all__.extend( + [x for x in dir(cext) if x.startswith('RLIM') and x.isupper()]) + + +# ===================================================================== +# --- system memory +# ===================================================================== + + +def calculate_avail_vmem(mems): + """Fallback for kernels < 3.14 where /proc/meminfo does not provide + "MemAvailable:" column, see: + https://blog.famzah.net/2014/09/24/ + This code reimplements the algorithm outlined here: + https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/ + commit/?id=34e431b0ae398fc54ea69ff85ec700722c9da773 + + XXX: on recent kernels this calculation differs by ~1.5% than + "MemAvailable:" as it's calculated slightly differently, see: + https://gitlab.com/procps-ng/procps/issues/42 + https://github.com/famzah/linux-memavailable-procfs/issues/2 + It is still way more realistic than doing (free + cached) though. + """ + # Fallback for very old distros. According to + # https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/ + # commit/?id=34e431b0ae398fc54ea69ff85ec700722c9da773 + # ...long ago "avail" was calculated as (free + cached). + # We might fallback in such cases: + # "Active(file)" not available: 2.6.28 / Dec 2008 + # "Inactive(file)" not available: 2.6.28 / Dec 2008 + # "SReclaimable:" not available: 2.6.19 / Nov 2006 + # /proc/zoneinfo not available: 2.6.13 / Aug 2005 + free = mems[b'MemFree:'] + fallback = free + mems.get(b"Cached:", 0) + try: + lru_active_file = mems[b'Active(file):'] + lru_inactive_file = mems[b'Inactive(file):'] + slab_reclaimable = mems[b'SReclaimable:'] + except KeyError: + return fallback + try: + f = open_binary('%s/zoneinfo' % get_procfs_path()) + except IOError: + return fallback # kernel 2.6.13 + + watermark_low = 0 + with f: + for line in f: + line = line.strip() + if line.startswith(b'low'): + watermark_low += int(line.split()[1]) + watermark_low *= PAGESIZE + + avail = free - watermark_low + pagecache = lru_active_file + lru_inactive_file + pagecache -= min(pagecache / 2, watermark_low) + avail += pagecache + avail += slab_reclaimable - min(slab_reclaimable / 2.0, watermark_low) + return int(avail) + + +def virtual_memory(): + """Report virtual memory stats. + This implementation matches "free" and "vmstat -s" cmdline + utility values and procps-ng-3.3.12 source was used as a reference + (2016-09-18): + https://gitlab.com/procps-ng/procps/blob/ + 24fd2605c51fccc375ab0287cec33aa767f06718/proc/sysinfo.c + For reference, procps-ng-3.3.10 is the version available on Ubuntu + 16.04. + + Note about "available" memory: up until psutil 4.3 it was + calculated as "avail = (free + buffers + cached)". Now + "MemAvailable:" column (kernel 3.14) from /proc/meminfo is used as + it's more accurate. + That matches "available" column in newer versions of "free". + """ + missing_fields = [] + mems = {} + with open_binary('%s/meminfo' % get_procfs_path()) as f: + for line in f: + fields = line.split() + mems[fields[0]] = int(fields[1]) * 1024 + + # /proc doc states that the available fields in /proc/meminfo vary + # by architecture and compile options, but these 3 values are also + # returned by sysinfo(2); as such we assume they are always there. + total = mems[b'MemTotal:'] + free = mems[b'MemFree:'] + try: + buffers = mems[b'Buffers:'] + except KeyError: + # https://github.com/giampaolo/psutil/issues/1010 + buffers = 0 + missing_fields.append('buffers') + try: + cached = mems[b"Cached:"] + except KeyError: + cached = 0 + missing_fields.append('cached') + else: + # "free" cmdline utility sums reclaimable to cached. + # Older versions of procps used to add slab memory instead. + # This got changed in: + # https://gitlab.com/procps-ng/procps/commit/ + # 05d751c4f076a2f0118b914c5e51cfbb4762ad8e + cached += mems.get(b"SReclaimable:", 0) # since kernel 2.6.19 + + try: + shared = mems[b'Shmem:'] # since kernel 2.6.32 + except KeyError: + try: + shared = mems[b'MemShared:'] # kernels 2.4 + except KeyError: + shared = 0 + missing_fields.append('shared') + + try: + active = mems[b"Active:"] + except KeyError: + active = 0 + missing_fields.append('active') + + try: + inactive = mems[b"Inactive:"] + except KeyError: + try: + inactive = \ + mems[b"Inact_dirty:"] + \ + mems[b"Inact_clean:"] + \ + mems[b"Inact_laundry:"] + except KeyError: + inactive = 0 + missing_fields.append('inactive') + + try: + slab = mems[b"Slab:"] + except KeyError: + slab = 0 + + used = total - free - cached - buffers + if used < 0: + # May be symptomatic of running within a LCX container where such + # values will be dramatically distorted over those of the host. + used = total - free + + # - starting from 4.4.0 we match free's "available" column. + # Before 4.4.0 we calculated it as (free + buffers + cached) + # which matched htop. + # - free and htop available memory differs as per: + # http://askubuntu.com/a/369589 + # http://unix.stackexchange.com/a/65852/168884 + # - MemAvailable has been introduced in kernel 3.14 + try: + avail = mems[b'MemAvailable:'] + except KeyError: + avail = calculate_avail_vmem(mems) + + if avail < 0: + avail = 0 + missing_fields.append('available') + + # If avail is greater than total or our calculation overflows, + # that's symptomatic of running within a LCX container where such + # values will be dramatically distorted over those of the host. + # https://gitlab.com/procps-ng/procps/blob/ + # 24fd2605c51fccc375ab0287cec33aa767f06718/proc/sysinfo.c#L764 + if avail > total: + avail = free + + percent = usage_percent((total - avail), total, round_=1) + + # Warn about missing metrics which are set to 0. + if missing_fields: + msg = "%s memory stats couldn't be determined and %s set to 0" % ( + ", ".join(missing_fields), + "was" if len(missing_fields) == 1 else "were") + warnings.warn(msg, RuntimeWarning) + + return svmem(total, avail, percent, used, free, + active, inactive, buffers, cached, shared, slab) + + +def swap_memory(): + """Return swap memory metrics.""" + mems = {} + with open_binary('%s/meminfo' % get_procfs_path()) as f: + for line in f: + fields = line.split() + mems[fields[0]] = int(fields[1]) * 1024 + # We prefer /proc/meminfo over sysinfo() syscall so that + # psutil.PROCFS_PATH can be used in order to allow retrieval + # for linux containers, see: + # https://github.com/giampaolo/psutil/issues/1015 + try: + total = mems[b'SwapTotal:'] + free = mems[b'SwapFree:'] + except KeyError: + _, _, _, _, total, free, unit_multiplier = cext.linux_sysinfo() + total *= unit_multiplier + free *= unit_multiplier + + used = total - free + percent = usage_percent(used, total, round_=1) + # get pgin/pgouts + try: + f = open_binary("%s/vmstat" % get_procfs_path()) + except IOError as err: + # see https://github.com/giampaolo/psutil/issues/722 + msg = "'sin' and 'sout' swap memory stats couldn't " \ + "be determined and were set to 0 (%s)" % str(err) + warnings.warn(msg, RuntimeWarning) + sin = sout = 0 + else: + with f: + sin = sout = None + for line in f: + # values are expressed in 4 kilo bytes, we want + # bytes instead + if line.startswith(b'pswpin'): + sin = int(line.split(b' ')[1]) * 4 * 1024 + elif line.startswith(b'pswpout'): + sout = int(line.split(b' ')[1]) * 4 * 1024 + if sin is not None and sout is not None: + break + else: + # we might get here when dealing with exotic Linux + # flavors, see: + # https://github.com/giampaolo/psutil/issues/313 + msg = "'sin' and 'sout' swap memory stats couldn't " \ + "be determined and were set to 0" + warnings.warn(msg, RuntimeWarning) + sin = sout = 0 + return _common.sswap(total, used, free, percent, sin, sout) + + +# ===================================================================== +# --- CPU +# ===================================================================== + + +def cpu_times(): + """Return a named tuple representing the following system-wide + CPU times: + (user, nice, system, idle, iowait, irq, softirq [steal, [guest, + [guest_nice]]]) + Last 3 fields may not be available on all Linux kernel versions. + """ + procfs_path = get_procfs_path() + set_scputimes_ntuple(procfs_path) + with open_binary('%s/stat' % procfs_path) as f: + values = f.readline().split() + fields = values[1:len(scputimes._fields) + 1] + fields = [float(x) / CLOCK_TICKS for x in fields] + return scputimes(*fields) + + +def per_cpu_times(): + """Return a list of namedtuple representing the CPU times + for every CPU available on the system. + """ + procfs_path = get_procfs_path() + set_scputimes_ntuple(procfs_path) + cpus = [] + with open_binary('%s/stat' % procfs_path) as f: + # get rid of the first line which refers to system wide CPU stats + f.readline() + for line in f: + if line.startswith(b'cpu'): + values = line.split() + fields = values[1:len(scputimes._fields) + 1] + fields = [float(x) / CLOCK_TICKS for x in fields] + entry = scputimes(*fields) + cpus.append(entry) + return cpus + + +def cpu_count_logical(): + """Return the number of logical CPUs in the system.""" + try: + return os.sysconf("SC_NPROCESSORS_ONLN") + except ValueError: + # as a second fallback we try to parse /proc/cpuinfo + num = 0 + with open_binary('%s/cpuinfo' % get_procfs_path()) as f: + for line in f: + if line.lower().startswith(b'processor'): + num += 1 + + # unknown format (e.g. amrel/sparc architectures), see: + # https://github.com/giampaolo/psutil/issues/200 + # try to parse /proc/stat as a last resort + if num == 0: + search = re.compile(r'cpu\d') + with open_text('%s/stat' % get_procfs_path()) as f: + for line in f: + line = line.split(' ')[0] + if search.match(line): + num += 1 + + if num == 0: + # mimic os.cpu_count() + return None + return num + + +def cpu_count_cores(): + """Return the number of CPU cores in the system.""" + # Method #1 + ls = set() + # These 2 files are the same but */core_cpus_list is newer while + # */thread_siblings_list is deprecated and may disappear in the future. + # https://www.kernel.org/doc/Documentation/admin-guide/cputopology.rst + # https://github.com/giampaolo/psutil/pull/1727#issuecomment-707624964 + # https://lkml.org/lkml/2019/2/26/41 + p1 = "/sys/devices/system/cpu/cpu[0-9]*/topology/core_cpus_list" + p2 = "/sys/devices/system/cpu/cpu[0-9]*/topology/thread_siblings_list" + for path in glob.glob(p1) or glob.glob(p2): + with open_binary(path) as f: + ls.add(f.read().strip()) + result = len(ls) + if result != 0: + return result + + # Method #2 + mapping = {} + current_info = {} + with open_binary('%s/cpuinfo' % get_procfs_path()) as f: + for line in f: + line = line.strip().lower() + if not line: + # new section + try: + mapping[current_info[b'physical id']] = \ + current_info[b'cpu cores'] + except KeyError: + pass + current_info = {} + else: + # ongoing section + if line.startswith((b'physical id', b'cpu cores')): + key, value = line.split(b'\t:', 1) + current_info[key] = int(value) + + result = sum(mapping.values()) + return result or None # mimic os.cpu_count() + + +def cpu_stats(): + """Return various CPU stats as a named tuple.""" + with open_binary('%s/stat' % get_procfs_path()) as f: + ctx_switches = None + interrupts = None + soft_interrupts = None + for line in f: + if line.startswith(b'ctxt'): + ctx_switches = int(line.split()[1]) + elif line.startswith(b'intr'): + interrupts = int(line.split()[1]) + elif line.startswith(b'softirq'): + soft_interrupts = int(line.split()[1]) + if ctx_switches is not None and soft_interrupts is not None \ + and interrupts is not None: + break + syscalls = 0 + return _common.scpustats( + ctx_switches, interrupts, soft_interrupts, syscalls) + + +def _cpu_get_cpuinfo_freq(): + """Return current CPU frequency from cpuinfo if available. + """ + ret = [] + with open_binary('%s/cpuinfo' % get_procfs_path()) as f: + for line in f: + if line.lower().startswith(b'cpu mhz'): + ret.append(float(line.split(b':', 1)[1])) + return ret + + +if os.path.exists("/sys/devices/system/cpu/cpufreq/policy0") or \ + os.path.exists("/sys/devices/system/cpu/cpu0/cpufreq"): + def cpu_freq(): + """Return frequency metrics for all CPUs. + Contrarily to other OSes, Linux updates these values in + real-time. + """ + cpuinfo_freqs = _cpu_get_cpuinfo_freq() + paths = \ + glob.glob("/sys/devices/system/cpu/cpufreq/policy[0-9]*") or \ + glob.glob("/sys/devices/system/cpu/cpu[0-9]*/cpufreq") + paths.sort(key=lambda x: int(re.search(r"[0-9]+", x).group())) + ret = [] + pjoin = os.path.join + for i, path in enumerate(paths): + if len(paths) == len(cpuinfo_freqs): + # take cached value from cpuinfo if available, see: + # https://github.com/giampaolo/psutil/issues/1851 + curr = cpuinfo_freqs[i] * 1000 + else: + curr = bcat(pjoin(path, "scaling_cur_freq"), fallback=None) + if curr is None: + # Likely an old RedHat, see: + # https://github.com/giampaolo/psutil/issues/1071 + curr = bcat(pjoin(path, "cpuinfo_cur_freq"), fallback=None) + if curr is None: + raise NotImplementedError( + "can't find current frequency file") + curr = int(curr) / 1000 + max_ = int(bcat(pjoin(path, "scaling_max_freq"))) / 1000 + min_ = int(bcat(pjoin(path, "scaling_min_freq"))) / 1000 + ret.append(_common.scpufreq(curr, min_, max_)) + return ret + +else: + def cpu_freq(): + """Alternate implementation using /proc/cpuinfo. + min and max frequencies are not available and are set to None. + """ + return [_common.scpufreq(x, 0., 0.) for x in _cpu_get_cpuinfo_freq()] + + +# ===================================================================== +# --- network +# ===================================================================== + + +net_if_addrs = cext_posix.net_if_addrs + + +class _Ipv6UnsupportedError(Exception): + pass + + +class Connections: + """A wrapper on top of /proc/net/* files, retrieving per-process + and system-wide open connections (TCP, UDP, UNIX) similarly to + "netstat -an". + + Note: in case of UNIX sockets we're only able to determine the + local endpoint/path, not the one it's connected to. + According to [1] it would be possible but not easily. + + [1] http://serverfault.com/a/417946 + """ + + def __init__(self): + # The string represents the basename of the corresponding + # /proc/net/{proto_name} file. + tcp4 = ("tcp", socket.AF_INET, socket.SOCK_STREAM) + tcp6 = ("tcp6", socket.AF_INET6, socket.SOCK_STREAM) + udp4 = ("udp", socket.AF_INET, socket.SOCK_DGRAM) + udp6 = ("udp6", socket.AF_INET6, socket.SOCK_DGRAM) + unix = ("unix", socket.AF_UNIX, None) + self.tmap = { + "all": (tcp4, tcp6, udp4, udp6, unix), + "tcp": (tcp4, tcp6), + "tcp4": (tcp4,), + "tcp6": (tcp6,), + "udp": (udp4, udp6), + "udp4": (udp4,), + "udp6": (udp6,), + "unix": (unix,), + "inet": (tcp4, tcp6, udp4, udp6), + "inet4": (tcp4, udp4), + "inet6": (tcp6, udp6), + } + self._procfs_path = None + + def get_proc_inodes(self, pid): + inodes = defaultdict(list) + for fd in os.listdir("%s/%s/fd" % (self._procfs_path, pid)): + try: + inode = readlink("%s/%s/fd/%s" % (self._procfs_path, pid, fd)) + except (FileNotFoundError, ProcessLookupError): + # ENOENT == file which is gone in the meantime; + # os.stat('/proc/%s' % self.pid) will be done later + # to force NSP (if it's the case) + continue + except OSError as err: + if err.errno == errno.EINVAL: + # not a link + continue + if err.errno == errno.ENAMETOOLONG: + # file name too long + debug(err) + continue + raise + else: + if inode.startswith('socket:['): + # the process is using a socket + inode = inode[8:][:-1] + inodes[inode].append((pid, int(fd))) + return inodes + + def get_all_inodes(self): + inodes = {} + for pid in pids(): + try: + inodes.update(self.get_proc_inodes(pid)) + except (FileNotFoundError, ProcessLookupError, PermissionError): + # os.listdir() is gonna raise a lot of access denied + # exceptions in case of unprivileged user; that's fine + # as we'll just end up returning a connection with PID + # and fd set to None anyway. + # Both netstat -an and lsof does the same so it's + # unlikely we can do any better. + # ENOENT just means a PID disappeared on us. + continue + return inodes + + @staticmethod + def decode_address(addr, family): + """Accept an "ip:port" address as displayed in /proc/net/* + and convert it into a human readable form, like: + + "0500000A:0016" -> ("10.0.0.5", 22) + "0000000000000000FFFF00000100007F:9E49" -> ("::ffff:127.0.0.1", 40521) + + The IP address portion is a little or big endian four-byte + hexadecimal number; that is, the least significant byte is listed + first, so we need to reverse the order of the bytes to convert it + to an IP address. + The port is represented as a two-byte hexadecimal number. + + Reference: + http://linuxdevcenter.com/pub/a/linux/2000/11/16/LinuxAdmin.html + """ + ip, port = addr.split(':') + port = int(port, 16) + # this usually refers to a local socket in listen mode with + # no end-points connected + if not port: + return () + if PY3: + ip = ip.encode('ascii') + if family == socket.AF_INET: + # see: https://github.com/giampaolo/psutil/issues/201 + if LITTLE_ENDIAN: + ip = socket.inet_ntop(family, base64.b16decode(ip)[::-1]) + else: + ip = socket.inet_ntop(family, base64.b16decode(ip)) + else: # IPv6 + ip = base64.b16decode(ip) + try: + # see: https://github.com/giampaolo/psutil/issues/201 + if LITTLE_ENDIAN: + ip = socket.inet_ntop( + socket.AF_INET6, + struct.pack('>4I', *struct.unpack('<4I', ip))) + else: + ip = socket.inet_ntop( + socket.AF_INET6, + struct.pack('<4I', *struct.unpack('<4I', ip))) + except ValueError: + # see: https://github.com/giampaolo/psutil/issues/623 + if not supports_ipv6(): + raise _Ipv6UnsupportedError + else: + raise + return _common.addr(ip, port) + + @staticmethod + def process_inet(file, family, type_, inodes, filter_pid=None): + """Parse /proc/net/tcp* and /proc/net/udp* files.""" + if file.endswith('6') and not os.path.exists(file): + # IPv6 not supported + return + with open_text(file) as f: + f.readline() # skip the first line + for lineno, line in enumerate(f, 1): + try: + _, laddr, raddr, status, _, _, _, _, _, inode = \ + line.split()[:10] + except ValueError: + raise RuntimeError( + "error while parsing %s; malformed line %s %r" % ( + file, lineno, line)) + if inode in inodes: + # # We assume inet sockets are unique, so we error + # # out if there are multiple references to the + # # same inode. We won't do this for UNIX sockets. + # if len(inodes[inode]) > 1 and family != socket.AF_UNIX: + # raise ValueError("ambiguous inode with multiple " + # "PIDs references") + pid, fd = inodes[inode][0] + else: + pid, fd = None, -1 + if filter_pid is not None and filter_pid != pid: + continue + else: + if type_ == socket.SOCK_STREAM: + status = TCP_STATUSES[status] + else: + status = _common.CONN_NONE + try: + laddr = Connections.decode_address(laddr, family) + raddr = Connections.decode_address(raddr, family) + except _Ipv6UnsupportedError: + continue + yield (fd, family, type_, laddr, raddr, status, pid) + + @staticmethod + def process_unix(file, family, inodes, filter_pid=None): + """Parse /proc/net/unix files.""" + with open_text(file) as f: + f.readline() # skip the first line + for line in f: + tokens = line.split() + try: + _, _, _, _, type_, _, inode = tokens[0:7] + except ValueError: + if ' ' not in line: + # see: https://github.com/giampaolo/psutil/issues/766 + continue + raise RuntimeError( + "error while parsing %s; malformed line %r" % ( + file, line)) + if inode in inodes: + # With UNIX sockets we can have a single inode + # referencing many file descriptors. + pairs = inodes[inode] + else: + pairs = [(None, -1)] + for pid, fd in pairs: + if filter_pid is not None and filter_pid != pid: + continue + else: + if len(tokens) == 8: + path = tokens[-1] + else: + path = "" + type_ = _common.socktype_to_enum(int(type_)) + # XXX: determining the remote endpoint of a + # UNIX socket on Linux is not possible, see: + # https://serverfault.com/questions/252723/ + raddr = "" + status = _common.CONN_NONE + yield (fd, family, type_, path, raddr, status, pid) + + def retrieve(self, kind, pid=None): + if kind not in self.tmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in self.tmap]))) + self._procfs_path = get_procfs_path() + if pid is not None: + inodes = self.get_proc_inodes(pid) + if not inodes: + # no connections for this process + return [] + else: + inodes = self.get_all_inodes() + ret = set() + for proto_name, family, type_ in self.tmap[kind]: + path = "%s/net/%s" % (self._procfs_path, proto_name) + if family in (socket.AF_INET, socket.AF_INET6): + ls = self.process_inet( + path, family, type_, inodes, filter_pid=pid) + else: + ls = self.process_unix( + path, family, inodes, filter_pid=pid) + for fd, family, type_, laddr, raddr, status, bound_pid in ls: + if pid: + conn = _common.pconn(fd, family, type_, laddr, raddr, + status) + else: + conn = _common.sconn(fd, family, type_, laddr, raddr, + status, bound_pid) + ret.add(conn) + return list(ret) + + +_connections = Connections() + + +def net_connections(kind='inet'): + """Return system-wide open connections.""" + return _connections.retrieve(kind) + + +def net_io_counters(): + """Return network I/O statistics for every network interface + installed on the system as a dict of raw tuples. + """ + with open_text("%s/net/dev" % get_procfs_path()) as f: + lines = f.readlines() + retdict = {} + for line in lines[2:]: + colon = line.rfind(':') + assert colon > 0, repr(line) + name = line[:colon].strip() + fields = line[colon + 1:].strip().split() + + # in + (bytes_recv, + packets_recv, + errin, + dropin, + fifoin, # unused + framein, # unused + compressedin, # unused + multicastin, # unused + # out + bytes_sent, + packets_sent, + errout, + dropout, + fifoout, # unused + collisionsout, # unused + carrierout, # unused + compressedout) = map(int, fields) + + retdict[name] = (bytes_sent, bytes_recv, packets_sent, packets_recv, + errin, errout, dropin, dropout) + return retdict + + +def net_if_stats(): + """Get NIC stats (isup, duplex, speed, mtu).""" + duplex_map = {cext.DUPLEX_FULL: NIC_DUPLEX_FULL, + cext.DUPLEX_HALF: NIC_DUPLEX_HALF, + cext.DUPLEX_UNKNOWN: NIC_DUPLEX_UNKNOWN} + names = net_io_counters().keys() + ret = {} + for name in names: + try: + mtu = cext_posix.net_if_mtu(name) + flags = cext_posix.net_if_flags(name) + duplex, speed = cext.net_if_duplex_speed(name) + except OSError as err: + # https://github.com/giampaolo/psutil/issues/1279 + if err.errno != errno.ENODEV: + raise + else: + debug(err) + else: + output_flags = ','.join(flags) + isup = 'running' in flags + ret[name] = _common.snicstats(isup, duplex_map[duplex], speed, mtu, + output_flags) + return ret + + +# ===================================================================== +# --- disks +# ===================================================================== + + +disk_usage = _psposix.disk_usage + + +def disk_io_counters(perdisk=False): + """Return disk I/O statistics for every disk installed on the + system as a dict of raw tuples. + """ + def read_procfs(): + # OK, this is a bit confusing. The format of /proc/diskstats can + # have 3 variations. + # On Linux 2.4 each line has always 15 fields, e.g.: + # "3 0 8 hda 8 8 8 8 8 8 8 8 8 8 8" + # On Linux 2.6+ each line *usually* has 14 fields, and the disk + # name is in another position, like this: + # "3 0 hda 8 8 8 8 8 8 8 8 8 8 8" + # ...unless (Linux 2.6) the line refers to a partition instead + # of a disk, in which case the line has less fields (7): + # "3 1 hda1 8 8 8 8" + # 4.18+ has 4 fields added: + # "3 0 hda 8 8 8 8 8 8 8 8 8 8 8 0 0 0 0" + # 5.5 has 2 more fields. + # See: + # https://www.kernel.org/doc/Documentation/iostats.txt + # https://www.kernel.org/doc/Documentation/ABI/testing/procfs-diskstats + with open_text("%s/diskstats" % get_procfs_path()) as f: + lines = f.readlines() + for line in lines: + fields = line.split() + flen = len(fields) + if flen == 15: + # Linux 2.4 + name = fields[3] + reads = int(fields[2]) + (reads_merged, rbytes, rtime, writes, writes_merged, + wbytes, wtime, _, busy_time, _) = map(int, fields[4:14]) + elif flen == 14 or flen >= 18: + # Linux 2.6+, line referring to a disk + name = fields[2] + (reads, reads_merged, rbytes, rtime, writes, writes_merged, + wbytes, wtime, _, busy_time, _) = map(int, fields[3:14]) + elif flen == 7: + # Linux 2.6+, line referring to a partition + name = fields[2] + reads, rbytes, writes, wbytes = map(int, fields[3:]) + rtime = wtime = reads_merged = writes_merged = busy_time = 0 + else: + raise ValueError("not sure how to interpret line %r" % line) + yield (name, reads, writes, rbytes, wbytes, rtime, wtime, + reads_merged, writes_merged, busy_time) + + def read_sysfs(): + for block in os.listdir('/sys/block'): + for root, _, files in os.walk(os.path.join('/sys/block', block)): + if 'stat' not in files: + continue + with open_text(os.path.join(root, 'stat')) as f: + fields = f.read().strip().split() + name = os.path.basename(root) + (reads, reads_merged, rbytes, rtime, writes, writes_merged, + wbytes, wtime, _, busy_time) = map(int, fields[:10]) + yield (name, reads, writes, rbytes, wbytes, rtime, + wtime, reads_merged, writes_merged, busy_time) + + if os.path.exists('%s/diskstats' % get_procfs_path()): + gen = read_procfs() + elif os.path.exists('/sys/block'): + gen = read_sysfs() + else: + raise NotImplementedError( + "%s/diskstats nor /sys/block filesystem are available on this " + "system" % get_procfs_path()) + + retdict = {} + for entry in gen: + (name, reads, writes, rbytes, wbytes, rtime, wtime, reads_merged, + writes_merged, busy_time) = entry + if not perdisk and not is_storage_device(name): + # perdisk=False means we want to calculate totals so we skip + # partitions (e.g. 'sda1', 'nvme0n1p1') and only include + # base disk devices (e.g. 'sda', 'nvme0n1'). Base disks + # include a total of all their partitions + some extra size + # of their own: + # $ cat /proc/diskstats + # 259 0 sda 10485760 ... + # 259 1 sda1 5186039 ... + # 259 1 sda2 5082039 ... + # See: + # https://github.com/giampaolo/psutil/pull/1313 + continue + + rbytes *= DISK_SECTOR_SIZE + wbytes *= DISK_SECTOR_SIZE + retdict[name] = (reads, writes, rbytes, wbytes, rtime, wtime, + reads_merged, writes_merged, busy_time) + + return retdict + + +class RootFsDeviceFinder: + """disk_partitions() may return partitions with device == "/dev/root" + or "rootfs". This container class uses different strategies to try to + obtain the real device path. Resources: + https://bootlin.com/blog/find-root-device/ + https://www.systutorials.com/how-to-find-the-disk-where-root-is-on-in-bash-on-linux/ + """ + __slots__ = ['major', 'minor'] + + def __init__(self): + dev = os.stat("/").st_dev + self.major = os.major(dev) + self.minor = os.minor(dev) + + def ask_proc_partitions(self): + with open_text("%s/partitions" % get_procfs_path()) as f: + for line in f.readlines()[2:]: + fields = line.split() + if len(fields) < 4: # just for extra safety + continue + major = int(fields[0]) if fields[0].isdigit() else None + minor = int(fields[1]) if fields[1].isdigit() else None + name = fields[3] + if major == self.major and minor == self.minor: + if name: # just for extra safety + return "/dev/%s" % name + + def ask_sys_dev_block(self): + path = "/sys/dev/block/%s:%s/uevent" % (self.major, self.minor) + with open_text(path) as f: + for line in f: + if line.startswith("DEVNAME="): + name = line.strip().rpartition("DEVNAME=")[2] + if name: # just for extra safety + return "/dev/%s" % name + + def ask_sys_class_block(self): + needle = "%s:%s" % (self.major, self.minor) + files = glob.iglob("/sys/class/block/*/dev") + for file in files: + try: + f = open_text(file) + except FileNotFoundError: # race condition + continue + else: + with f: + data = f.read().strip() + if data == needle: + name = os.path.basename(os.path.dirname(file)) + return "/dev/%s" % name + + def find(self): + path = None + if path is None: + try: + path = self.ask_proc_partitions() + except (IOError, OSError) as err: + debug(err) + if path is None: + try: + path = self.ask_sys_dev_block() + except (IOError, OSError) as err: + debug(err) + if path is None: + try: + path = self.ask_sys_class_block() + except (IOError, OSError) as err: + debug(err) + # We use exists() because the "/dev/*" part of the path is hard + # coded, so we want to be sure. + if path is not None and os.path.exists(path): + return path + + +def disk_partitions(all=False): + """Return mounted disk partitions as a list of namedtuples.""" + fstypes = set() + procfs_path = get_procfs_path() + with open_text("%s/filesystems" % procfs_path) as f: + for line in f: + line = line.strip() + if not line.startswith("nodev"): + fstypes.add(line.strip()) + else: + # ignore all lines starting with "nodev" except "nodev zfs" + fstype = line.split("\t")[1] + if fstype == "zfs": + fstypes.add("zfs") + + # See: https://github.com/giampaolo/psutil/issues/1307 + if procfs_path == "/proc" and os.path.isfile('/etc/mtab'): + mounts_path = os.path.realpath("/etc/mtab") + else: + mounts_path = os.path.realpath("%s/self/mounts" % procfs_path) + + retlist = [] + partitions = cext.disk_partitions(mounts_path) + for partition in partitions: + device, mountpoint, fstype, opts = partition + if device == 'none': + device = '' + if device in ("/dev/root", "rootfs"): + device = RootFsDeviceFinder().find() or device + if not all: + if device == '' or fstype not in fstypes: + continue + maxfile = maxpath = None # set later + ntuple = _common.sdiskpart(device, mountpoint, fstype, opts, + maxfile, maxpath) + retlist.append(ntuple) + + return retlist + + +# ===================================================================== +# --- sensors +# ===================================================================== + + +def sensors_temperatures(): + """Return hardware (CPU and others) temperatures as a dict + including hardware name, label, current, max and critical + temperatures. + + Implementation notes: + - /sys/class/hwmon looks like the most recent interface to + retrieve this info, and this implementation relies on it + only (old distros will probably use something else) + - lm-sensors on Ubuntu 16.04 relies on /sys/class/hwmon + - /sys/class/thermal/thermal_zone* is another one but it's more + difficult to parse + """ + ret = collections.defaultdict(list) + basenames = glob.glob('/sys/class/hwmon/hwmon*/temp*_*') + # CentOS has an intermediate /device directory: + # https://github.com/giampaolo/psutil/issues/971 + # https://github.com/nicolargo/glances/issues/1060 + basenames.extend(glob.glob('/sys/class/hwmon/hwmon*/device/temp*_*')) + basenames = sorted(set([x.split('_')[0] for x in basenames])) + + # Only add the coretemp hwmon entries if they're not already in + # /sys/class/hwmon/ + # https://github.com/giampaolo/psutil/issues/1708 + # https://github.com/giampaolo/psutil/pull/1648 + basenames2 = glob.glob( + '/sys/devices/platform/coretemp.*/hwmon/hwmon*/temp*_*') + repl = re.compile('/sys/devices/platform/coretemp.*/hwmon/') + for name in basenames2: + altname = repl.sub('/sys/class/hwmon/', name) + if altname not in basenames: + basenames.append(name) + + for base in basenames: + try: + path = base + '_input' + current = float(bcat(path)) / 1000.0 + path = os.path.join(os.path.dirname(base), 'name') + unit_name = cat(path).strip() + except (IOError, OSError, ValueError): + # A lot of things can go wrong here, so let's just skip the + # whole entry. Sure thing is Linux's /sys/class/hwmon really + # is a stinky broken mess. + # https://github.com/giampaolo/psutil/issues/1009 + # https://github.com/giampaolo/psutil/issues/1101 + # https://github.com/giampaolo/psutil/issues/1129 + # https://github.com/giampaolo/psutil/issues/1245 + # https://github.com/giampaolo/psutil/issues/1323 + continue + + high = bcat(base + '_max', fallback=None) + critical = bcat(base + '_crit', fallback=None) + label = cat(base + '_label', fallback='').strip() + + if high is not None: + try: + high = float(high) / 1000.0 + except ValueError: + high = None + if critical is not None: + try: + critical = float(critical) / 1000.0 + except ValueError: + critical = None + + ret[unit_name].append((label, current, high, critical)) + + # Indication that no sensors were detected in /sys/class/hwmon/ + if not basenames: + basenames = glob.glob('/sys/class/thermal/thermal_zone*') + basenames = sorted(set(basenames)) + + for base in basenames: + try: + path = os.path.join(base, 'temp') + current = float(bcat(path)) / 1000.0 + path = os.path.join(base, 'type') + unit_name = cat(path).strip() + except (IOError, OSError, ValueError) as err: + debug(err) + continue + + trip_paths = glob.glob(base + '/trip_point*') + trip_points = set(['_'.join( + os.path.basename(p).split('_')[0:3]) for p in trip_paths]) + critical = None + high = None + for trip_point in trip_points: + path = os.path.join(base, trip_point + "_type") + trip_type = cat(path, fallback='').strip() + if trip_type == 'critical': + critical = bcat(os.path.join(base, trip_point + "_temp"), + fallback=None) + elif trip_type == 'high': + high = bcat(os.path.join(base, trip_point + "_temp"), + fallback=None) + + if high is not None: + try: + high = float(high) / 1000.0 + except ValueError: + high = None + if critical is not None: + try: + critical = float(critical) / 1000.0 + except ValueError: + critical = None + + ret[unit_name].append(('', current, high, critical)) + + return dict(ret) + + +def sensors_fans(): + """Return hardware fans info (for CPU and other peripherals) as a + dict including hardware label and current speed. + + Implementation notes: + - /sys/class/hwmon looks like the most recent interface to + retrieve this info, and this implementation relies on it + only (old distros will probably use something else) + - lm-sensors on Ubuntu 16.04 relies on /sys/class/hwmon + """ + ret = collections.defaultdict(list) + basenames = glob.glob('/sys/class/hwmon/hwmon*/fan*_*') + if not basenames: + # CentOS has an intermediate /device directory: + # https://github.com/giampaolo/psutil/issues/971 + basenames = glob.glob('/sys/class/hwmon/hwmon*/device/fan*_*') + + basenames = sorted(set([x.split('_')[0] for x in basenames])) + for base in basenames: + try: + current = int(bcat(base + '_input')) + except (IOError, OSError) as err: + debug(err) + continue + unit_name = cat(os.path.join(os.path.dirname(base), 'name')).strip() + label = cat(base + '_label', fallback='').strip() + ret[unit_name].append(_common.sfan(label, current)) + + return dict(ret) + + +def sensors_battery(): + """Return battery information. + Implementation note: it appears /sys/class/power_supply/BAT0/ + directory structure may vary and provide files with the same + meaning but under different names, see: + https://github.com/giampaolo/psutil/issues/966 + """ + null = object() + + def multi_bcat(*paths): + """Attempt to read the content of multiple files which may + not exist. If none of them exist return None. + """ + for path in paths: + ret = bcat(path, fallback=null) + if ret != null: + try: + return int(ret) + except ValueError: + return ret.strip() + return None + + bats = [x for x in os.listdir(POWER_SUPPLY_PATH) if x.startswith('BAT') or + 'battery' in x.lower()] + if not bats: + return None + # Get the first available battery. Usually this is "BAT0", except + # some rare exceptions: + # https://github.com/giampaolo/psutil/issues/1238 + root = os.path.join(POWER_SUPPLY_PATH, sorted(bats)[0]) + + # Base metrics. + energy_now = multi_bcat( + root + "/energy_now", + root + "/charge_now") + power_now = multi_bcat( + root + "/power_now", + root + "/current_now") + energy_full = multi_bcat( + root + "/energy_full", + root + "/charge_full") + time_to_empty = multi_bcat(root + "/time_to_empty_now") + + # Percent. If we have energy_full the percentage will be more + # accurate compared to reading /capacity file (float vs. int). + if energy_full is not None and energy_now is not None: + try: + percent = 100.0 * energy_now / energy_full + except ZeroDivisionError: + percent = 0.0 + else: + percent = int(cat(root + "/capacity", fallback=-1)) + if percent == -1: + return None + + # Is AC power cable plugged in? + # Note: AC0 is not always available and sometimes (e.g. CentOS7) + # it's called "AC". + power_plugged = None + online = multi_bcat( + os.path.join(POWER_SUPPLY_PATH, "AC0/online"), + os.path.join(POWER_SUPPLY_PATH, "AC/online")) + if online is not None: + power_plugged = online == 1 + else: + status = cat(root + "/status", fallback="").strip().lower() + if status == "discharging": + power_plugged = False + elif status in ("charging", "full"): + power_plugged = True + + # Seconds left. + # Note to self: we may also calculate the charging ETA as per: + # https://github.com/thialfihar/dotfiles/blob/ + # 013937745fd9050c30146290e8f963d65c0179e6/bin/battery.py#L55 + if power_plugged: + secsleft = _common.POWER_TIME_UNLIMITED + elif energy_now is not None and power_now is not None: + try: + secsleft = int(energy_now / power_now * 3600) + except ZeroDivisionError: + secsleft = _common.POWER_TIME_UNKNOWN + elif time_to_empty is not None: + secsleft = int(time_to_empty * 60) + if secsleft < 0: + secsleft = _common.POWER_TIME_UNKNOWN + else: + secsleft = _common.POWER_TIME_UNKNOWN + + return _common.sbattery(percent, secsleft, power_plugged) + + +# ===================================================================== +# --- other system functions +# ===================================================================== + + +def users(): + """Return currently connected users as a list of namedtuples.""" + retlist = [] + rawlist = cext.users() + for item in rawlist: + user, tty, hostname, tstamp, user_process, pid = item + # note: the underlying C function includes entries about + # system boot, run level and others. We might want + # to use them in the future. + if not user_process: + continue + if hostname in (':0.0', ':0'): + hostname = 'localhost' + nt = _common.suser(user, tty or None, hostname, tstamp, pid) + retlist.append(nt) + return retlist + + +def boot_time(): + """Return the system boot time expressed in seconds since the epoch.""" + global BOOT_TIME + path = '%s/stat' % get_procfs_path() + with open_binary(path) as f: + for line in f: + if line.startswith(b'btime'): + ret = float(line.strip().split()[1]) + BOOT_TIME = ret + return ret + raise RuntimeError( + "line 'btime' not found in %s" % path) + + +# ===================================================================== +# --- processes +# ===================================================================== + + +def pids(): + """Returns a list of PIDs currently running on the system.""" + return [int(x) for x in os.listdir(b(get_procfs_path())) if x.isdigit()] + + +def pid_exists(pid): + """Check for the existence of a unix PID. Linux TIDs are not + supported (always return False). + """ + if not _psposix.pid_exists(pid): + return False + else: + # Linux's apparently does not distinguish between PIDs and TIDs + # (thread IDs). + # listdir("/proc") won't show any TID (only PIDs) but + # os.stat("/proc/{tid}") will succeed if {tid} exists. + # os.kill() can also be passed a TID. This is quite confusing. + # In here we want to enforce this distinction and support PIDs + # only, see: + # https://github.com/giampaolo/psutil/issues/687 + try: + # Note: already checked that this is faster than using a + # regular expr. Also (a lot) faster than doing + # 'return pid in pids()' + path = "%s/%s/status" % (get_procfs_path(), pid) + with open_binary(path) as f: + for line in f: + if line.startswith(b"Tgid:"): + tgid = int(line.split()[1]) + # If tgid and pid are the same then we're + # dealing with a process PID. + return tgid == pid + raise ValueError("'Tgid' line not found in %s" % path) + except (EnvironmentError, ValueError): + return pid in pids() + + +def ppid_map(): + """Obtain a {pid: ppid, ...} dict for all running processes in + one shot. Used to speed up Process.children(). + """ + ret = {} + procfs_path = get_procfs_path() + for pid in pids(): + try: + with open_binary("%s/%s/stat" % (procfs_path, pid)) as f: + data = f.read() + except (FileNotFoundError, ProcessLookupError): + # Note: we should be able to access /stat for all processes + # aka it's unlikely we'll bump into EPERM, which is good. + pass + else: + rpar = data.rfind(b')') + dset = data[rpar + 2:].split() + ppid = int(dset[1]) + ret[pid] = ppid + return ret + + +def wrap_exceptions(fun): + """Decorator which translates bare OSError and IOError exceptions + into NoSuchProcess and AccessDenied. + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + try: + return fun(self, *args, **kwargs) + except PermissionError: + raise AccessDenied(self.pid, self._name) + except ProcessLookupError: + raise NoSuchProcess(self.pid, self._name) + except FileNotFoundError: + if not os.path.exists("%s/%s" % (self._procfs_path, self.pid)): + raise NoSuchProcess(self.pid, self._name) + # Note: zombies will keep existing under /proc until they're + # gone so there's no way to distinguish them in here. + raise + return wrapper + + +class Process(object): + """Linux process implementation.""" + + __slots__ = ["pid", "_name", "_ppid", "_procfs_path", "_cache"] + + def __init__(self, pid): + self.pid = pid + self._name = None + self._ppid = None + self._procfs_path = get_procfs_path() + + def _assert_alive(self): + """Raise NSP if the process disappeared on us.""" + # For those C function who do not raise NSP, possibly returning + # incorrect or incomplete result. + os.stat('%s/%s' % (self._procfs_path, self.pid)) + + @wrap_exceptions + @memoize_when_activated + def _parse_stat_file(self): + """Parse /proc/{pid}/stat file and return a dict with various + process info. + Using "man proc" as a reference: where "man proc" refers to + position N always subtract 3 (e.g ppid position 4 in + 'man proc' == position 1 in here). + The return value is cached in case oneshot() ctx manager is + in use. + """ + data = bcat("%s/%s/stat" % (self._procfs_path, self.pid)) + # Process name is between parentheses. It can contain spaces and + # other parentheses. This is taken into account by looking for + # the first occurrence of "(" and the last occurrence of ")". + rpar = data.rfind(b')') + name = data[data.find(b'(') + 1:rpar] + fields = data[rpar + 2:].split() + + ret = {} + ret['name'] = name + ret['status'] = fields[0] + ret['ppid'] = fields[1] + ret['ttynr'] = fields[4] + ret['utime'] = fields[11] + ret['stime'] = fields[12] + ret['children_utime'] = fields[13] + ret['children_stime'] = fields[14] + ret['create_time'] = fields[19] + ret['cpu_num'] = fields[36] + ret['blkio_ticks'] = fields[39] # aka 'delayacct_blkio_ticks' + + return ret + + @wrap_exceptions + @memoize_when_activated + def _read_status_file(self): + """Read /proc/{pid}/stat file and return its content. + The return value is cached in case oneshot() ctx manager is + in use. + """ + with open_binary("%s/%s/status" % (self._procfs_path, self.pid)) as f: + return f.read() + + @wrap_exceptions + @memoize_when_activated + def _read_smaps_file(self): + with open_binary("%s/%s/smaps" % (self._procfs_path, self.pid)) as f: + return f.read().strip() + + def oneshot_enter(self): + self._parse_stat_file.cache_activate(self) + self._read_status_file.cache_activate(self) + self._read_smaps_file.cache_activate(self) + + def oneshot_exit(self): + self._parse_stat_file.cache_deactivate(self) + self._read_status_file.cache_deactivate(self) + self._read_smaps_file.cache_deactivate(self) + + @wrap_exceptions + def name(self): + name = self._parse_stat_file()['name'] + if PY3: + name = decode(name) + # XXX - gets changed later and probably needs refactoring + return name + + def exe(self): + try: + return readlink("%s/%s/exe" % (self._procfs_path, self.pid)) + except (FileNotFoundError, ProcessLookupError): + # no such file error; might be raised also if the + # path actually exists for system processes with + # low pids (about 0-20) + if os.path.lexists("%s/%s" % (self._procfs_path, self.pid)): + return "" + else: + if not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name) + else: + raise ZombieProcess(self.pid, self._name, self._ppid) + except PermissionError: + raise AccessDenied(self.pid, self._name) + + @wrap_exceptions + def cmdline(self): + with open_text("%s/%s/cmdline" % (self._procfs_path, self.pid)) as f: + data = f.read() + if not data: + # may happen in case of zombie process + return [] + # 'man proc' states that args are separated by null bytes '\0' + # and last char is supposed to be a null byte. Nevertheless + # some processes may change their cmdline after being started + # (via setproctitle() or similar), they are usually not + # compliant with this rule and use spaces instead. Google + # Chrome process is an example. See: + # https://github.com/giampaolo/psutil/issues/1179 + sep = '\x00' if data.endswith('\x00') else ' ' + if data.endswith(sep): + data = data[:-1] + cmdline = data.split(sep) + # Sometimes last char is a null byte '\0' but the args are + # separated by spaces, see: https://github.com/giampaolo/psutil/ + # issues/1179#issuecomment-552984549 + if sep == '\x00' and len(cmdline) == 1 and ' ' in data: + cmdline = data.split(' ') + return cmdline + + @wrap_exceptions + def environ(self): + with open_text("%s/%s/environ" % (self._procfs_path, self.pid)) as f: + data = f.read() + return parse_environ_block(data) + + @wrap_exceptions + def terminal(self): + tty_nr = int(self._parse_stat_file()['ttynr']) + tmap = _psposix.get_terminal_map() + try: + return tmap[tty_nr] + except KeyError: + return None + + # May not be available on old kernels. + if os.path.exists('/proc/%s/io' % os.getpid()): + @wrap_exceptions + def io_counters(self): + fname = "%s/%s/io" % (self._procfs_path, self.pid) + fields = {} + with open_binary(fname) as f: + for line in f: + # https://github.com/giampaolo/psutil/issues/1004 + line = line.strip() + if line: + try: + name, value = line.split(b': ') + except ValueError: + # https://github.com/giampaolo/psutil/issues/1004 + continue + else: + fields[name] = int(value) + if not fields: + raise RuntimeError("%s file was empty" % fname) + try: + return pio( + fields[b'syscr'], # read syscalls + fields[b'syscw'], # write syscalls + fields[b'read_bytes'], # read bytes + fields[b'write_bytes'], # write bytes + fields[b'rchar'], # read chars + fields[b'wchar'], # write chars + ) + except KeyError as err: + raise ValueError("%r field was not found in %s; found fields " + "are %r" % (err[0], fname, fields)) + + @wrap_exceptions + def cpu_times(self): + values = self._parse_stat_file() + utime = float(values['utime']) / CLOCK_TICKS + stime = float(values['stime']) / CLOCK_TICKS + children_utime = float(values['children_utime']) / CLOCK_TICKS + children_stime = float(values['children_stime']) / CLOCK_TICKS + iowait = float(values['blkio_ticks']) / CLOCK_TICKS + return pcputimes(utime, stime, children_utime, children_stime, iowait) + + @wrap_exceptions + def cpu_num(self): + """What CPU the process is on.""" + return int(self._parse_stat_file()['cpu_num']) + + @wrap_exceptions + def wait(self, timeout=None): + return _psposix.wait_pid(self.pid, timeout, self._name) + + @wrap_exceptions + def create_time(self): + ctime = float(self._parse_stat_file()['create_time']) + # According to documentation, starttime is in field 21 and the + # unit is jiffies (clock ticks). + # We first divide it for clock ticks and then add uptime returning + # seconds since the epoch. + # Also use cached value if available. + bt = BOOT_TIME or boot_time() + return (ctime / CLOCK_TICKS) + bt + + @wrap_exceptions + def memory_info(self): + # ============================================================ + # | FIELD | DESCRIPTION | AKA | TOP | + # ============================================================ + # | rss | resident set size | | RES | + # | vms | total program size | size | VIRT | + # | shared | shared pages (from shared mappings) | | SHR | + # | text | text ('code') | trs | CODE | + # | lib | library (unused in Linux 2.6) | lrs | | + # | data | data + stack | drs | DATA | + # | dirty | dirty pages (unused in Linux 2.6) | dt | | + # ============================================================ + with open_binary("%s/%s/statm" % (self._procfs_path, self.pid)) as f: + vms, rss, shared, text, lib, data, dirty = \ + [int(x) * PAGESIZE for x in f.readline().split()[:7]] + return pmem(rss, vms, shared, text, lib, data, dirty) + + if HAS_PROC_SMAPS_ROLLUP or HAS_PROC_SMAPS: + + @wrap_exceptions + def _parse_smaps_rollup(self): + # /proc/pid/smaps_rollup was added to Linux in 2017. Faster + # than /proc/pid/smaps. It reports higher PSS than */smaps + # (from 1k up to 200k higher; tested against all processes). + uss = pss = swap = 0 + try: + with open_binary("{}/{}/smaps_rollup".format( + self._procfs_path, self.pid)) as f: + for line in f: + if line.startswith(b"Private_"): + # Private_Clean, Private_Dirty, Private_Hugetlb + uss += int(line.split()[1]) * 1024 + elif line.startswith(b"Pss:"): + pss = int(line.split()[1]) * 1024 + elif line.startswith(b"Swap:"): + swap = int(line.split()[1]) * 1024 + except ProcessLookupError: # happens on readline() + if not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name) + else: + raise ZombieProcess(self.pid, self._name, self._ppid) + return (uss, pss, swap) + + @wrap_exceptions + def _parse_smaps( + self, + # Gets Private_Clean, Private_Dirty, Private_Hugetlb. + _private_re=re.compile(br"\nPrivate.*:\s+(\d+)"), + _pss_re=re.compile(br"\nPss\:\s+(\d+)"), + _swap_re=re.compile(br"\nSwap\:\s+(\d+)")): + # /proc/pid/smaps does not exist on kernels < 2.6.14 or if + # CONFIG_MMU kernel configuration option is not enabled. + + # Note: using 3 regexes is faster than reading the file + # line by line. + # XXX: on Python 3 the 2 regexes are 30% slower than on + # Python 2 though. Figure out why. + # + # You might be tempted to calculate USS by subtracting + # the "shared" value from the "resident" value in + # /proc/<pid>/statm. But at least on Linux, statm's "shared" + # value actually counts pages backed by files, which has + # little to do with whether the pages are actually shared. + # /proc/self/smaps on the other hand appears to give us the + # correct information. + smaps_data = self._read_smaps_file() + # Note: smaps file can be empty for certain processes. + # The code below will not crash though and will result to 0. + uss = sum(map(int, _private_re.findall(smaps_data))) * 1024 + pss = sum(map(int, _pss_re.findall(smaps_data))) * 1024 + swap = sum(map(int, _swap_re.findall(smaps_data))) * 1024 + return (uss, pss, swap) + + def memory_full_info(self): + if HAS_PROC_SMAPS_ROLLUP: # faster + uss, pss, swap = self._parse_smaps_rollup() + else: + uss, pss, swap = self._parse_smaps() + basic_mem = self.memory_info() + return pfullmem(*basic_mem + (uss, pss, swap)) + + else: + memory_full_info = memory_info + + if HAS_PROC_SMAPS: + + @wrap_exceptions + def memory_maps(self): + """Return process's mapped memory regions as a list of named + tuples. Fields are explained in 'man proc'; here is an updated + (Apr 2012) version: http://goo.gl/fmebo + + /proc/{PID}/smaps does not exist on kernels < 2.6.14 or if + CONFIG_MMU kernel configuration option is not enabled. + """ + def get_blocks(lines, current_block): + data = {} + for line in lines: + fields = line.split(None, 5) + if not fields[0].endswith(b':'): + # new block section + yield (current_block.pop(), data) + current_block.append(line) + else: + try: + data[fields[0]] = int(fields[1]) * 1024 + except ValueError: + if fields[0].startswith(b'VmFlags:'): + # see issue #369 + continue + else: + raise ValueError("don't know how to inte" + "rpret line %r" % line) + yield (current_block.pop(), data) + + data = self._read_smaps_file() + # Note: smaps file can be empty for certain processes. + if not data: + return [] + lines = data.split(b'\n') + ls = [] + first_line = lines.pop(0) + current_block = [first_line] + for header, data in get_blocks(lines, current_block): + hfields = header.split(None, 5) + try: + addr, perms, offset, dev, inode, path = hfields + except ValueError: + addr, perms, offset, dev, inode, path = \ + hfields + [''] + if not path: + path = '[anon]' + else: + if PY3: + path = decode(path) + path = path.strip() + if (path.endswith(' (deleted)') and not + path_exists_strict(path)): + path = path[:-10] + ls.append(( + decode(addr), decode(perms), path, + data.get(b'Rss:', 0), + data.get(b'Size:', 0), + data.get(b'Pss:', 0), + data.get(b'Shared_Clean:', 0), + data.get(b'Shared_Dirty:', 0), + data.get(b'Private_Clean:', 0), + data.get(b'Private_Dirty:', 0), + data.get(b'Referenced:', 0), + data.get(b'Anonymous:', 0), + data.get(b'Swap:', 0) + )) + return ls + + @wrap_exceptions + def cwd(self): + try: + return readlink("%s/%s/cwd" % (self._procfs_path, self.pid)) + except (FileNotFoundError, ProcessLookupError): + # https://github.com/giampaolo/psutil/issues/986 + if not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name) + else: + raise ZombieProcess(self.pid, self._name, self._ppid) + + @wrap_exceptions + def num_ctx_switches(self, + _ctxsw_re=re.compile(br'ctxt_switches:\t(\d+)')): + data = self._read_status_file() + ctxsw = _ctxsw_re.findall(data) + if not ctxsw: + raise NotImplementedError( + "'voluntary_ctxt_switches' and 'nonvoluntary_ctxt_switches'" + "lines were not found in %s/%s/status; the kernel is " + "probably older than 2.6.23" % ( + self._procfs_path, self.pid)) + else: + return _common.pctxsw(int(ctxsw[0]), int(ctxsw[1])) + + @wrap_exceptions + def num_threads(self, _num_threads_re=re.compile(br'Threads:\t(\d+)')): + # Note: on Python 3 using a re is faster than iterating over file + # line by line. On Python 2 is the exact opposite, and iterating + # over a file on Python 3 is slower than on Python 2. + data = self._read_status_file() + return int(_num_threads_re.findall(data)[0]) + + @wrap_exceptions + def threads(self): + thread_ids = os.listdir("%s/%s/task" % (self._procfs_path, self.pid)) + thread_ids.sort() + retlist = [] + hit_enoent = False + for thread_id in thread_ids: + fname = "%s/%s/task/%s/stat" % ( + self._procfs_path, self.pid, thread_id) + try: + with open_binary(fname) as f: + st = f.read().strip() + except (FileNotFoundError, ProcessLookupError): + # no such file or directory or no such process; + # it means thread disappeared on us + hit_enoent = True + continue + # ignore the first two values ("pid (exe)") + st = st[st.find(b')') + 2:] + values = st.split(b' ') + utime = float(values[11]) / CLOCK_TICKS + stime = float(values[12]) / CLOCK_TICKS + ntuple = _common.pthread(int(thread_id), utime, stime) + retlist.append(ntuple) + if hit_enoent: + self._assert_alive() + return retlist + + @wrap_exceptions + def nice_get(self): + # with open_text('%s/%s/stat' % (self._procfs_path, self.pid)) as f: + # data = f.read() + # return int(data.split()[18]) + + # Use C implementation + return cext_posix.getpriority(self.pid) + + @wrap_exceptions + def nice_set(self, value): + return cext_posix.setpriority(self.pid, value) + + # starting from CentOS 6. + if HAS_CPU_AFFINITY: + + @wrap_exceptions + def cpu_affinity_get(self): + return cext.proc_cpu_affinity_get(self.pid) + + def _get_eligible_cpus( + self, _re=re.compile(br"Cpus_allowed_list:\t(\d+)-(\d+)")): + # See: https://github.com/giampaolo/psutil/issues/956 + data = self._read_status_file() + match = _re.findall(data) + if match: + return list(range(int(match[0][0]), int(match[0][1]) + 1)) + else: + return list(range(len(per_cpu_times()))) + + @wrap_exceptions + def cpu_affinity_set(self, cpus): + try: + cext.proc_cpu_affinity_set(self.pid, cpus) + except (OSError, ValueError) as err: + if isinstance(err, ValueError) or err.errno == errno.EINVAL: + eligible_cpus = self._get_eligible_cpus() + all_cpus = tuple(range(len(per_cpu_times()))) + for cpu in cpus: + if cpu not in all_cpus: + raise ValueError( + "invalid CPU number %r; choose between %s" % ( + cpu, eligible_cpus)) + if cpu not in eligible_cpus: + raise ValueError( + "CPU number %r is not eligible; choose " + "between %s" % (cpu, eligible_cpus)) + raise + + # only starting from kernel 2.6.13 + if HAS_PROC_IO_PRIORITY: + + @wrap_exceptions + def ionice_get(self): + ioclass, value = cext.proc_ioprio_get(self.pid) + if enum is not None: + ioclass = IOPriority(ioclass) + return _common.pionice(ioclass, value) + + @wrap_exceptions + def ionice_set(self, ioclass, value): + if value is None: + value = 0 + if value and ioclass in (IOPRIO_CLASS_IDLE, IOPRIO_CLASS_NONE): + raise ValueError("%r ioclass accepts no value" % ioclass) + if value < 0 or value > 7: + raise ValueError("value not in 0-7 range") + return cext.proc_ioprio_set(self.pid, ioclass, value) + + if prlimit is not None: + + @wrap_exceptions + def rlimit(self, resource_, limits=None): + # If pid is 0 prlimit() applies to the calling process and + # we don't want that. We should never get here though as + # PID 0 is not supported on Linux. + if self.pid == 0: + raise ValueError("can't use prlimit() against PID 0 process") + try: + if limits is None: + # get + return prlimit(self.pid, resource_) + else: + # set + if len(limits) != 2: + raise ValueError( + "second argument must be a (soft, hard) tuple, " + "got %s" % repr(limits)) + prlimit(self.pid, resource_, limits) + except OSError as err: + if err.errno == errno.ENOSYS and pid_exists(self.pid): + # I saw this happening on Travis: + # https://travis-ci.org/giampaolo/psutil/jobs/51368273 + raise ZombieProcess(self.pid, self._name, self._ppid) + else: + raise + + @wrap_exceptions + def status(self): + letter = self._parse_stat_file()['status'] + if PY3: + letter = letter.decode() + # XXX is '?' legit? (we're not supposed to return it anyway) + return PROC_STATUSES.get(letter, '?') + + @wrap_exceptions + def open_files(self): + retlist = [] + files = os.listdir("%s/%s/fd" % (self._procfs_path, self.pid)) + hit_enoent = False + for fd in files: + file = "%s/%s/fd/%s" % (self._procfs_path, self.pid, fd) + try: + path = readlink(file) + except (FileNotFoundError, ProcessLookupError): + # ENOENT == file which is gone in the meantime + hit_enoent = True + continue + except OSError as err: + if err.errno == errno.EINVAL: + # not a link + continue + if err.errno == errno.ENAMETOOLONG: + # file name too long + debug(err) + continue + raise + else: + # If path is not an absolute there's no way to tell + # whether it's a regular file or not, so we skip it. + # A regular file is always supposed to be have an + # absolute path though. + if path.startswith('/') and isfile_strict(path): + # Get file position and flags. + file = "%s/%s/fdinfo/%s" % ( + self._procfs_path, self.pid, fd) + try: + with open_binary(file) as f: + pos = int(f.readline().split()[1]) + flags = int(f.readline().split()[1], 8) + except (FileNotFoundError, ProcessLookupError): + # fd gone in the meantime; process may + # still be alive + hit_enoent = True + else: + mode = file_flags_to_mode(flags) + ntuple = popenfile( + path, int(fd), int(pos), mode, flags) + retlist.append(ntuple) + if hit_enoent: + self._assert_alive() + return retlist + + @wrap_exceptions + def connections(self, kind='inet'): + ret = _connections.retrieve(kind, self.pid) + self._assert_alive() + return ret + + @wrap_exceptions + def num_fds(self): + return len(os.listdir("%s/%s/fd" % (self._procfs_path, self.pid))) + + @wrap_exceptions + def ppid(self): + return int(self._parse_stat_file()['ppid']) + + @wrap_exceptions + def uids(self, _uids_re=re.compile(br'Uid:\t(\d+)\t(\d+)\t(\d+)')): + data = self._read_status_file() + real, effective, saved = _uids_re.findall(data)[0] + return _common.puids(int(real), int(effective), int(saved)) + + @wrap_exceptions + def gids(self, _gids_re=re.compile(br'Gid:\t(\d+)\t(\d+)\t(\d+)')): + data = self._read_status_file() + real, effective, saved = _gids_re.findall(data)[0] + return _common.pgids(int(real), int(effective), int(saved)) diff --git a/lib/psutil/_psosx.py b/lib/psutil/_psosx.py new file mode 100644 index 0000000..58359bc --- /dev/null +++ b/lib/psutil/_psosx.py @@ -0,0 +1,543 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""macOS platform implementation.""" + +import errno +import functools +import os +from collections import namedtuple + +from . import _common +from . import _psposix +from . import _psutil_osx as cext +from . import _psutil_posix as cext_posix +from ._common import AccessDenied +from ._common import NoSuchProcess +from ._common import ZombieProcess +from ._common import conn_tmap +from ._common import conn_to_ntuple +from ._common import isfile_strict +from ._common import memoize_when_activated +from ._common import parse_environ_block +from ._common import usage_percent +from ._compat import PermissionError +from ._compat import ProcessLookupError + + +__extra__all__ = [] + + +# ===================================================================== +# --- globals +# ===================================================================== + + +PAGESIZE = cext_posix.getpagesize() +AF_LINK = cext_posix.AF_LINK + +TCP_STATUSES = { + cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED, + cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT, + cext.TCPS_SYN_RECEIVED: _common.CONN_SYN_RECV, + cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1, + cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2, + cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT, + cext.TCPS_CLOSED: _common.CONN_CLOSE, + cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT, + cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK, + cext.TCPS_LISTEN: _common.CONN_LISTEN, + cext.TCPS_CLOSING: _common.CONN_CLOSING, + cext.PSUTIL_CONN_NONE: _common.CONN_NONE, +} + +PROC_STATUSES = { + cext.SIDL: _common.STATUS_IDLE, + cext.SRUN: _common.STATUS_RUNNING, + cext.SSLEEP: _common.STATUS_SLEEPING, + cext.SSTOP: _common.STATUS_STOPPED, + cext.SZOMB: _common.STATUS_ZOMBIE, +} + +kinfo_proc_map = dict( + ppid=0, + ruid=1, + euid=2, + suid=3, + rgid=4, + egid=5, + sgid=6, + ttynr=7, + ctime=8, + status=9, + name=10, +) + +pidtaskinfo_map = dict( + cpuutime=0, + cpustime=1, + rss=2, + vms=3, + pfaults=4, + pageins=5, + numthreads=6, + volctxsw=7, +) + + +# ===================================================================== +# --- named tuples +# ===================================================================== + + +# psutil.cpu_times() +scputimes = namedtuple('scputimes', ['user', 'nice', 'system', 'idle']) +# psutil.virtual_memory() +svmem = namedtuple( + 'svmem', ['total', 'available', 'percent', 'used', 'free', + 'active', 'inactive', 'wired']) +# psutil.Process.memory_info() +pmem = namedtuple('pmem', ['rss', 'vms', 'pfaults', 'pageins']) +# psutil.Process.memory_full_info() +pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', )) + + +# ===================================================================== +# --- memory +# ===================================================================== + + +def virtual_memory(): + """System virtual memory as a namedtuple.""" + total, active, inactive, wired, free, speculative = cext.virtual_mem() + # This is how Zabbix calculate avail and used mem: + # https://github.com/zabbix/zabbix/blob/trunk/src/libs/zbxsysinfo/ + # osx/memory.c + # Also see: https://github.com/giampaolo/psutil/issues/1277 + avail = inactive + free + used = active + wired + # This is NOT how Zabbix calculates free mem but it matches "free" + # cmdline utility. + free -= speculative + percent = usage_percent((total - avail), total, round_=1) + return svmem(total, avail, percent, used, free, + active, inactive, wired) + + +def swap_memory(): + """Swap system memory as a (total, used, free, sin, sout) tuple.""" + total, used, free, sin, sout = cext.swap_mem() + percent = usage_percent(used, total, round_=1) + return _common.sswap(total, used, free, percent, sin, sout) + + +# ===================================================================== +# --- CPU +# ===================================================================== + + +def cpu_times(): + """Return system CPU times as a namedtuple.""" + user, nice, system, idle = cext.cpu_times() + return scputimes(user, nice, system, idle) + + +def per_cpu_times(): + """Return system CPU times as a named tuple""" + ret = [] + for cpu_t in cext.per_cpu_times(): + user, nice, system, idle = cpu_t + item = scputimes(user, nice, system, idle) + ret.append(item) + return ret + + +def cpu_count_logical(): + """Return the number of logical CPUs in the system.""" + return cext.cpu_count_logical() + + +def cpu_count_cores(): + """Return the number of CPU cores in the system.""" + return cext.cpu_count_cores() + + +def cpu_stats(): + ctx_switches, interrupts, soft_interrupts, syscalls, traps = \ + cext.cpu_stats() + return _common.scpustats( + ctx_switches, interrupts, soft_interrupts, syscalls) + + +def cpu_freq(): + """Return CPU frequency. + On macOS per-cpu frequency is not supported. + Also, the returned frequency never changes, see: + https://arstechnica.com/civis/viewtopic.php?f=19&t=465002 + """ + curr, min_, max_ = cext.cpu_freq() + return [_common.scpufreq(curr, min_, max_)] + + +# ===================================================================== +# --- disks +# ===================================================================== + + +disk_usage = _psposix.disk_usage +disk_io_counters = cext.disk_io_counters + + +def disk_partitions(all=False): + """Return mounted disk partitions as a list of namedtuples.""" + retlist = [] + partitions = cext.disk_partitions() + for partition in partitions: + device, mountpoint, fstype, opts = partition + if device == 'none': + device = '' + if not all: + if not os.path.isabs(device) or not os.path.exists(device): + continue + maxfile = maxpath = None # set later + ntuple = _common.sdiskpart(device, mountpoint, fstype, opts, + maxfile, maxpath) + retlist.append(ntuple) + return retlist + + +# ===================================================================== +# --- sensors +# ===================================================================== + + +def sensors_battery(): + """Return battery information.""" + try: + percent, minsleft, power_plugged = cext.sensors_battery() + except NotImplementedError: + # no power source - return None according to interface + return None + power_plugged = power_plugged == 1 + if power_plugged: + secsleft = _common.POWER_TIME_UNLIMITED + elif minsleft == -1: + secsleft = _common.POWER_TIME_UNKNOWN + else: + secsleft = minsleft * 60 + return _common.sbattery(percent, secsleft, power_plugged) + + +# ===================================================================== +# --- network +# ===================================================================== + + +net_io_counters = cext.net_io_counters +net_if_addrs = cext_posix.net_if_addrs + + +def net_connections(kind='inet'): + """System-wide network connections.""" + # Note: on macOS this will fail with AccessDenied unless + # the process is owned by root. + ret = [] + for pid in pids(): + try: + cons = Process(pid).connections(kind) + except NoSuchProcess: + continue + else: + if cons: + for c in cons: + c = list(c) + [pid] + ret.append(_common.sconn(*c)) + return ret + + +def net_if_stats(): + """Get NIC stats (isup, duplex, speed, mtu).""" + names = net_io_counters().keys() + ret = {} + for name in names: + try: + mtu = cext_posix.net_if_mtu(name) + flags = cext_posix.net_if_flags(name) + duplex, speed = cext_posix.net_if_duplex_speed(name) + except OSError as err: + # https://github.com/giampaolo/psutil/issues/1279 + if err.errno != errno.ENODEV: + raise + else: + if hasattr(_common, 'NicDuplex'): + duplex = _common.NicDuplex(duplex) + output_flags = ','.join(flags) + isup = 'running' in flags + ret[name] = _common.snicstats(isup, duplex, speed, mtu, + output_flags) + return ret + + +# ===================================================================== +# --- other system functions +# ===================================================================== + + +def boot_time(): + """The system boot time expressed in seconds since the epoch.""" + return cext.boot_time() + + +def users(): + """Return currently connected users as a list of namedtuples.""" + retlist = [] + rawlist = cext.users() + for item in rawlist: + user, tty, hostname, tstamp, pid = item + if tty == '~': + continue # reboot or shutdown + if not tstamp: + continue + nt = _common.suser(user, tty or None, hostname or None, tstamp, pid) + retlist.append(nt) + return retlist + + +# ===================================================================== +# --- processes +# ===================================================================== + + +def pids(): + ls = cext.pids() + if 0 not in ls: + # On certain macOS versions pids() C doesn't return PID 0 but + # "ps" does and the process is querable via sysctl(): + # https://travis-ci.org/giampaolo/psutil/jobs/309619941 + try: + Process(0).create_time() + ls.insert(0, 0) + except NoSuchProcess: + pass + except AccessDenied: + ls.insert(0, 0) + return ls + + +pid_exists = _psposix.pid_exists + + +def is_zombie(pid): + try: + st = cext.proc_kinfo_oneshot(pid)[kinfo_proc_map['status']] + return st == cext.SZOMB + except Exception: + return False + + +def wrap_exceptions(fun): + """Decorator which translates bare OSError exceptions into + NoSuchProcess and AccessDenied. + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + try: + return fun(self, *args, **kwargs) + except ProcessLookupError: + if is_zombie(self.pid): + raise ZombieProcess(self.pid, self._name, self._ppid) + else: + raise NoSuchProcess(self.pid, self._name) + except PermissionError: + raise AccessDenied(self.pid, self._name) + except cext.ZombieProcessError: + raise ZombieProcess(self.pid, self._name, self._ppid) + return wrapper + + +class Process(object): + """Wrapper class around underlying C implementation.""" + + __slots__ = ["pid", "_name", "_ppid", "_cache"] + + def __init__(self, pid): + self.pid = pid + self._name = None + self._ppid = None + + @wrap_exceptions + @memoize_when_activated + def _get_kinfo_proc(self): + # Note: should work with all PIDs without permission issues. + ret = cext.proc_kinfo_oneshot(self.pid) + assert len(ret) == len(kinfo_proc_map) + return ret + + @wrap_exceptions + @memoize_when_activated + def _get_pidtaskinfo(self): + # Note: should work for PIDs owned by user only. + ret = cext.proc_pidtaskinfo_oneshot(self.pid) + assert len(ret) == len(pidtaskinfo_map) + return ret + + def oneshot_enter(self): + self._get_kinfo_proc.cache_activate(self) + self._get_pidtaskinfo.cache_activate(self) + + def oneshot_exit(self): + self._get_kinfo_proc.cache_deactivate(self) + self._get_pidtaskinfo.cache_deactivate(self) + + @wrap_exceptions + def name(self): + name = self._get_kinfo_proc()[kinfo_proc_map['name']] + return name if name is not None else cext.proc_name(self.pid) + + @wrap_exceptions + def exe(self): + return cext.proc_exe(self.pid) + + @wrap_exceptions + def cmdline(self): + return cext.proc_cmdline(self.pid) + + @wrap_exceptions + def environ(self): + return parse_environ_block(cext.proc_environ(self.pid)) + + @wrap_exceptions + def ppid(self): + self._ppid = self._get_kinfo_proc()[kinfo_proc_map['ppid']] + return self._ppid + + @wrap_exceptions + def cwd(self): + return cext.proc_cwd(self.pid) + + @wrap_exceptions + def uids(self): + rawtuple = self._get_kinfo_proc() + return _common.puids( + rawtuple[kinfo_proc_map['ruid']], + rawtuple[kinfo_proc_map['euid']], + rawtuple[kinfo_proc_map['suid']]) + + @wrap_exceptions + def gids(self): + rawtuple = self._get_kinfo_proc() + return _common.puids( + rawtuple[kinfo_proc_map['rgid']], + rawtuple[kinfo_proc_map['egid']], + rawtuple[kinfo_proc_map['sgid']]) + + @wrap_exceptions + def terminal(self): + tty_nr = self._get_kinfo_proc()[kinfo_proc_map['ttynr']] + tmap = _psposix.get_terminal_map() + try: + return tmap[tty_nr] + except KeyError: + return None + + @wrap_exceptions + def memory_info(self): + rawtuple = self._get_pidtaskinfo() + return pmem( + rawtuple[pidtaskinfo_map['rss']], + rawtuple[pidtaskinfo_map['vms']], + rawtuple[pidtaskinfo_map['pfaults']], + rawtuple[pidtaskinfo_map['pageins']], + ) + + @wrap_exceptions + def memory_full_info(self): + basic_mem = self.memory_info() + uss = cext.proc_memory_uss(self.pid) + return pfullmem(*basic_mem + (uss, )) + + @wrap_exceptions + def cpu_times(self): + rawtuple = self._get_pidtaskinfo() + return _common.pcputimes( + rawtuple[pidtaskinfo_map['cpuutime']], + rawtuple[pidtaskinfo_map['cpustime']], + # children user / system times are not retrievable (set to 0) + 0.0, 0.0) + + @wrap_exceptions + def create_time(self): + return self._get_kinfo_proc()[kinfo_proc_map['ctime']] + + @wrap_exceptions + def num_ctx_switches(self): + # Unvoluntary value seems not to be available; + # getrusage() numbers seems to confirm this theory. + # We set it to 0. + vol = self._get_pidtaskinfo()[pidtaskinfo_map['volctxsw']] + return _common.pctxsw(vol, 0) + + @wrap_exceptions + def num_threads(self): + return self._get_pidtaskinfo()[pidtaskinfo_map['numthreads']] + + @wrap_exceptions + def open_files(self): + if self.pid == 0: + return [] + files = [] + rawlist = cext.proc_open_files(self.pid) + for path, fd in rawlist: + if isfile_strict(path): + ntuple = _common.popenfile(path, fd) + files.append(ntuple) + return files + + @wrap_exceptions + def connections(self, kind='inet'): + if kind not in conn_tmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in conn_tmap]))) + families, types = conn_tmap[kind] + rawlist = cext.proc_connections(self.pid, families, types) + ret = [] + for item in rawlist: + fd, fam, type, laddr, raddr, status = item + nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, + TCP_STATUSES) + ret.append(nt) + return ret + + @wrap_exceptions + def num_fds(self): + if self.pid == 0: + return 0 + return cext.proc_num_fds(self.pid) + + @wrap_exceptions + def wait(self, timeout=None): + return _psposix.wait_pid(self.pid, timeout, self._name) + + @wrap_exceptions + def nice_get(self): + return cext_posix.getpriority(self.pid) + + @wrap_exceptions + def nice_set(self, value): + return cext_posix.setpriority(self.pid, value) + + @wrap_exceptions + def status(self): + code = self._get_kinfo_proc()[kinfo_proc_map['status']] + # XXX is '?' legit? (we're not supposed to return it anyway) + return PROC_STATUSES.get(code, '?') + + @wrap_exceptions + def threads(self): + rawlist = cext.proc_threads(self.pid) + retlist = [] + for thread_id, utime, stime in rawlist: + ntuple = _common.pthread(thread_id, utime, stime) + retlist.append(ntuple) + return retlist diff --git a/lib/psutil/_psposix.py b/lib/psutil/_psposix.py new file mode 100644 index 0000000..1d250bf --- /dev/null +++ b/lib/psutil/_psposix.py @@ -0,0 +1,232 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Routines common to all posix systems.""" + +import glob +import os +import signal +import sys +import time + +from ._common import MACOS +from ._common import TimeoutExpired +from ._common import memoize +from ._common import sdiskusage +from ._common import usage_percent +from ._compat import PY3 +from ._compat import ChildProcessError +from ._compat import FileNotFoundError +from ._compat import InterruptedError +from ._compat import PermissionError +from ._compat import ProcessLookupError +from ._compat import unicode + + +if MACOS: + from . import _psutil_osx + + +if sys.version_info >= (3, 4): + import enum +else: + enum = None + + +__all__ = ['pid_exists', 'wait_pid', 'disk_usage', 'get_terminal_map'] + + +def pid_exists(pid): + """Check whether pid exists in the current process table.""" + if pid == 0: + # According to "man 2 kill" PID 0 has a special meaning: + # it refers to <<every process in the process group of the + # calling process>> so we don't want to go any further. + # If we get here it means this UNIX platform *does* have + # a process with id 0. + return True + try: + os.kill(pid, 0) + except ProcessLookupError: + return False + except PermissionError: + # EPERM clearly means there's a process to deny access to + return True + # According to "man 2 kill" possible error values are + # (EINVAL, EPERM, ESRCH) + else: + return True + + +# Python 3.5 signals enum (contributed by me ^^): +# https://bugs.python.org/issue21076 +if enum is not None and hasattr(signal, "Signals"): + Negsignal = enum.IntEnum( + 'Negsignal', dict([(x.name, -x.value) for x in signal.Signals])) + + def negsig_to_enum(num): + """Convert a negative signal value to an enum.""" + try: + return Negsignal(num) + except ValueError: + return num +else: # pragma: no cover + def negsig_to_enum(num): + return num + + +def wait_pid(pid, timeout=None, proc_name=None, + _waitpid=os.waitpid, + _timer=getattr(time, 'monotonic', time.time), + _min=min, + _sleep=time.sleep, + _pid_exists=pid_exists): + """Wait for a process PID to terminate. + + If the process terminated normally by calling exit(3) or _exit(2), + or by returning from main(), the return value is the positive integer + passed to *exit(). + + If it was terminated by a signal it returns the negated value of the + signal which caused the termination (e.g. -SIGTERM). + + If PID is not a children of os.getpid() (current process) just + wait until the process disappears and return None. + + If PID does not exist at all return None immediately. + + If *timeout* != None and process is still alive raise TimeoutExpired. + timeout=0 is also possible (either return immediately or raise). + """ + if pid <= 0: + raise ValueError("can't wait for PID 0") # see "man waitpid" + interval = 0.0001 + flags = 0 + if timeout is not None: + flags |= os.WNOHANG + stop_at = _timer() + timeout + + def sleep(interval): + # Sleep for some time and return a new increased interval. + if timeout is not None: + if _timer() >= stop_at: + raise TimeoutExpired(timeout, pid=pid, name=proc_name) + _sleep(interval) + return _min(interval * 2, 0.04) + + # See: https://linux.die.net/man/2/waitpid + while True: + try: + retpid, status = os.waitpid(pid, flags) + except InterruptedError: + interval = sleep(interval) + except ChildProcessError: + # This has two meanings: + # - PID is not a child of os.getpid() in which case + # we keep polling until it's gone + # - PID never existed in the first place + # In both cases we'll eventually return None as we + # can't determine its exit status code. + while _pid_exists(pid): + interval = sleep(interval) + return + else: + if retpid == 0: + # WNOHANG flag was used and PID is still running. + interval = sleep(interval) + continue + elif os.WIFEXITED(status): + # Process terminated normally by calling exit(3) or _exit(2), + # or by returning from main(). The return value is the + # positive integer passed to *exit(). + return os.WEXITSTATUS(status) + elif os.WIFSIGNALED(status): + # Process exited due to a signal. Return the negative value + # of that signal. + return negsig_to_enum(-os.WTERMSIG(status)) + # elif os.WIFSTOPPED(status): + # # Process was stopped via SIGSTOP or is being traced, and + # # waitpid() was called with WUNTRACED flag. PID is still + # # alive. From now on waitpid() will keep returning (0, 0) + # # until the process state doesn't change. + # # It may make sense to catch/enable this since stopped PIDs + # # ignore SIGTERM. + # interval = sleep(interval) + # continue + # elif os.WIFCONTINUED(status): + # # Process was resumed via SIGCONT and waitpid() was called + # # with WCONTINUED flag. + # interval = sleep(interval) + # continue + else: + # Should never happen. + raise ValueError("unknown process exit status %r" % status) + + +def disk_usage(path): + """Return disk usage associated with path. + Note: UNIX usually reserves 5% disk space which is not accessible + by user. In this function "total" and "used" values reflect the + total and used disk space whereas "free" and "percent" represent + the "free" and "used percent" user disk space. + """ + if PY3: + st = os.statvfs(path) + else: # pragma: no cover + # os.statvfs() does not support unicode on Python 2: + # - https://github.com/giampaolo/psutil/issues/416 + # - http://bugs.python.org/issue18695 + try: + st = os.statvfs(path) + except UnicodeEncodeError: + if isinstance(path, unicode): + try: + path = path.encode(sys.getfilesystemencoding()) + except UnicodeEncodeError: + pass + st = os.statvfs(path) + else: + raise + + # Total space which is only available to root (unless changed + # at system level). + total = (st.f_blocks * st.f_frsize) + # Remaining free space usable by root. + avail_to_root = (st.f_bfree * st.f_frsize) + # Remaining free space usable by user. + avail_to_user = (st.f_bavail * st.f_frsize) + # Total space being used in general. + used = (total - avail_to_root) + if MACOS: + # see: https://github.com/giampaolo/psutil/pull/2152 + used = _psutil_osx.disk_usage_used(path, used) + # Total space which is available to user (same as 'total' but + # for the user). + total_user = used + avail_to_user + # User usage percent compared to the total amount of space + # the user can use. This number would be higher if compared + # to root's because the user has less space (usually -5%). + usage_percent_user = usage_percent(used, total_user, round_=1) + + # NB: the percentage is -5% than what shown by df due to + # reserved blocks that we are currently not considering: + # https://github.com/giampaolo/psutil/issues/829#issuecomment-223750462 + return sdiskusage( + total=total, used=used, free=avail_to_user, percent=usage_percent_user) + + +@memoize +def get_terminal_map(): + """Get a map of device-id -> path as a dict. + Used by Process.terminal() + """ + ret = {} + ls = glob.glob('/dev/tty*') + glob.glob('/dev/pts/*') + for name in ls: + assert name not in ret, name + try: + ret[os.stat(name).st_rdev] = name + except FileNotFoundError: + pass + return ret diff --git a/lib/psutil/_pssunos.py b/lib/psutil/_pssunos.py new file mode 100644 index 0000000..541c1aa --- /dev/null +++ b/lib/psutil/_pssunos.py @@ -0,0 +1,727 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Sun OS Solaris platform implementation.""" + +import errno +import functools +import os +import socket +import subprocess +import sys +from collections import namedtuple +from socket import AF_INET + +from . import _common +from . import _psposix +from . import _psutil_posix as cext_posix +from . import _psutil_sunos as cext +from ._common import AF_INET6 +from ._common import AccessDenied +from ._common import NoSuchProcess +from ._common import ZombieProcess +from ._common import debug +from ._common import get_procfs_path +from ._common import isfile_strict +from ._common import memoize_when_activated +from ._common import sockfam_to_enum +from ._common import socktype_to_enum +from ._common import usage_percent +from ._compat import PY3 +from ._compat import FileNotFoundError +from ._compat import PermissionError +from ._compat import ProcessLookupError +from ._compat import b + + +__extra__all__ = ["CONN_IDLE", "CONN_BOUND", "PROCFS_PATH"] + + +# ===================================================================== +# --- globals +# ===================================================================== + + +PAGE_SIZE = cext_posix.getpagesize() +AF_LINK = cext_posix.AF_LINK +IS_64_BIT = sys.maxsize > 2**32 + +CONN_IDLE = "IDLE" +CONN_BOUND = "BOUND" + +PROC_STATUSES = { + cext.SSLEEP: _common.STATUS_SLEEPING, + cext.SRUN: _common.STATUS_RUNNING, + cext.SZOMB: _common.STATUS_ZOMBIE, + cext.SSTOP: _common.STATUS_STOPPED, + cext.SIDL: _common.STATUS_IDLE, + cext.SONPROC: _common.STATUS_RUNNING, # same as run + cext.SWAIT: _common.STATUS_WAITING, +} + +TCP_STATUSES = { + cext.TCPS_ESTABLISHED: _common.CONN_ESTABLISHED, + cext.TCPS_SYN_SENT: _common.CONN_SYN_SENT, + cext.TCPS_SYN_RCVD: _common.CONN_SYN_RECV, + cext.TCPS_FIN_WAIT_1: _common.CONN_FIN_WAIT1, + cext.TCPS_FIN_WAIT_2: _common.CONN_FIN_WAIT2, + cext.TCPS_TIME_WAIT: _common.CONN_TIME_WAIT, + cext.TCPS_CLOSED: _common.CONN_CLOSE, + cext.TCPS_CLOSE_WAIT: _common.CONN_CLOSE_WAIT, + cext.TCPS_LAST_ACK: _common.CONN_LAST_ACK, + cext.TCPS_LISTEN: _common.CONN_LISTEN, + cext.TCPS_CLOSING: _common.CONN_CLOSING, + cext.PSUTIL_CONN_NONE: _common.CONN_NONE, + cext.TCPS_IDLE: CONN_IDLE, # sunos specific + cext.TCPS_BOUND: CONN_BOUND, # sunos specific +} + +proc_info_map = dict( + ppid=0, + rss=1, + vms=2, + create_time=3, + nice=4, + num_threads=5, + status=6, + ttynr=7, + uid=8, + euid=9, + gid=10, + egid=11) + + +# ===================================================================== +# --- named tuples +# ===================================================================== + + +# psutil.cpu_times() +scputimes = namedtuple('scputimes', ['user', 'system', 'idle', 'iowait']) +# psutil.cpu_times(percpu=True) +pcputimes = namedtuple('pcputimes', + ['user', 'system', 'children_user', 'children_system']) +# psutil.virtual_memory() +svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free']) +# psutil.Process.memory_info() +pmem = namedtuple('pmem', ['rss', 'vms']) +pfullmem = pmem +# psutil.Process.memory_maps(grouped=True) +pmmap_grouped = namedtuple('pmmap_grouped', + ['path', 'rss', 'anonymous', 'locked']) +# psutil.Process.memory_maps(grouped=False) +pmmap_ext = namedtuple( + 'pmmap_ext', 'addr perms ' + ' '.join(pmmap_grouped._fields)) + + +# ===================================================================== +# --- memory +# ===================================================================== + + +def virtual_memory(): + """Report virtual memory metrics.""" + # we could have done this with kstat, but IMHO this is good enough + total = os.sysconf('SC_PHYS_PAGES') * PAGE_SIZE + # note: there's no difference on Solaris + free = avail = os.sysconf('SC_AVPHYS_PAGES') * PAGE_SIZE + used = total - free + percent = usage_percent(used, total, round_=1) + return svmem(total, avail, percent, used, free) + + +def swap_memory(): + """Report swap memory metrics.""" + sin, sout = cext.swap_mem() + # XXX + # we are supposed to get total/free by doing so: + # http://cvs.opensolaris.org/source/xref/onnv/onnv-gate/ + # usr/src/cmd/swap/swap.c + # ...nevertheless I can't manage to obtain the same numbers as 'swap' + # cmdline utility, so let's parse its output (sigh!) + p = subprocess.Popen(['/usr/bin/env', 'PATH=/usr/sbin:/sbin:%s' % + os.environ['PATH'], 'swap', '-l'], + stdout=subprocess.PIPE) + stdout, stderr = p.communicate() + if PY3: + stdout = stdout.decode(sys.stdout.encoding) + if p.returncode != 0: + raise RuntimeError("'swap -l' failed (retcode=%s)" % p.returncode) + + lines = stdout.strip().split('\n')[1:] + if not lines: + raise RuntimeError('no swap device(s) configured') + total = free = 0 + for line in lines: + line = line.split() + t, f = line[3:5] + total += int(int(t) * 512) + free += int(int(f) * 512) + used = total - free + percent = usage_percent(used, total, round_=1) + return _common.sswap(total, used, free, percent, + sin * PAGE_SIZE, sout * PAGE_SIZE) + + +# ===================================================================== +# --- CPU +# ===================================================================== + + +def cpu_times(): + """Return system-wide CPU times as a named tuple""" + ret = cext.per_cpu_times() + return scputimes(*[sum(x) for x in zip(*ret)]) + + +def per_cpu_times(): + """Return system per-CPU times as a list of named tuples""" + ret = cext.per_cpu_times() + return [scputimes(*x) for x in ret] + + +def cpu_count_logical(): + """Return the number of logical CPUs in the system.""" + try: + return os.sysconf("SC_NPROCESSORS_ONLN") + except ValueError: + # mimic os.cpu_count() behavior + return None + + +def cpu_count_cores(): + """Return the number of CPU cores in the system.""" + return cext.cpu_count_cores() + + +def cpu_stats(): + """Return various CPU stats as a named tuple.""" + ctx_switches, interrupts, syscalls, traps = cext.cpu_stats() + soft_interrupts = 0 + return _common.scpustats(ctx_switches, interrupts, soft_interrupts, + syscalls) + + +# ===================================================================== +# --- disks +# ===================================================================== + + +disk_io_counters = cext.disk_io_counters +disk_usage = _psposix.disk_usage + + +def disk_partitions(all=False): + """Return system disk partitions.""" + # TODO - the filtering logic should be better checked so that + # it tries to reflect 'df' as much as possible + retlist = [] + partitions = cext.disk_partitions() + for partition in partitions: + device, mountpoint, fstype, opts = partition + if device == 'none': + device = '' + if not all: + # Differently from, say, Linux, we don't have a list of + # common fs types so the best we can do, AFAIK, is to + # filter by filesystem having a total size > 0. + try: + if not disk_usage(mountpoint).total: + continue + except OSError as err: + # https://github.com/giampaolo/psutil/issues/1674 + debug("skipping %r: %s" % (mountpoint, err)) + continue + maxfile = maxpath = None # set later + ntuple = _common.sdiskpart(device, mountpoint, fstype, opts, + maxfile, maxpath) + retlist.append(ntuple) + return retlist + + +# ===================================================================== +# --- network +# ===================================================================== + + +net_io_counters = cext.net_io_counters +net_if_addrs = cext_posix.net_if_addrs + + +def net_connections(kind, _pid=-1): + """Return socket connections. If pid == -1 return system-wide + connections (as opposed to connections opened by one process only). + Only INET sockets are returned (UNIX are not). + """ + cmap = _common.conn_tmap.copy() + if _pid == -1: + cmap.pop('unix', 0) + if kind not in cmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in cmap]))) + families, types = _common.conn_tmap[kind] + rawlist = cext.net_connections(_pid) + ret = set() + for item in rawlist: + fd, fam, type_, laddr, raddr, status, pid = item + if fam not in families: + continue + if type_ not in types: + continue + # TODO: refactor and use _common.conn_to_ntuple. + if fam in (AF_INET, AF_INET6): + if laddr: + laddr = _common.addr(*laddr) + if raddr: + raddr = _common.addr(*raddr) + status = TCP_STATUSES[status] + fam = sockfam_to_enum(fam) + type_ = socktype_to_enum(type_) + if _pid == -1: + nt = _common.sconn(fd, fam, type_, laddr, raddr, status, pid) + else: + nt = _common.pconn(fd, fam, type_, laddr, raddr, status) + ret.add(nt) + return list(ret) + + +def net_if_stats(): + """Get NIC stats (isup, duplex, speed, mtu).""" + ret = cext.net_if_stats() + for name, items in ret.items(): + isup, duplex, speed, mtu = items + if hasattr(_common, 'NicDuplex'): + duplex = _common.NicDuplex(duplex) + ret[name] = _common.snicstats(isup, duplex, speed, mtu, '') + return ret + + +# ===================================================================== +# --- other system functions +# ===================================================================== + + +def boot_time(): + """The system boot time expressed in seconds since the epoch.""" + return cext.boot_time() + + +def users(): + """Return currently connected users as a list of namedtuples.""" + retlist = [] + rawlist = cext.users() + localhost = (':0.0', ':0') + for item in rawlist: + user, tty, hostname, tstamp, user_process, pid = item + # note: the underlying C function includes entries about + # system boot, run level and others. We might want + # to use them in the future. + if not user_process: + continue + if hostname in localhost: + hostname = 'localhost' + nt = _common.suser(user, tty, hostname, tstamp, pid) + retlist.append(nt) + return retlist + + +# ===================================================================== +# --- processes +# ===================================================================== + + +def pids(): + """Returns a list of PIDs currently running on the system.""" + return [int(x) for x in os.listdir(b(get_procfs_path())) if x.isdigit()] + + +def pid_exists(pid): + """Check for the existence of a unix pid.""" + return _psposix.pid_exists(pid) + + +def wrap_exceptions(fun): + """Call callable into a try/except clause and translate ENOENT, + EACCES and EPERM in NoSuchProcess or AccessDenied exceptions. + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + try: + return fun(self, *args, **kwargs) + except (FileNotFoundError, ProcessLookupError): + # ENOENT (no such file or directory) gets raised on open(). + # ESRCH (no such process) can get raised on read() if + # process is gone in meantime. + if not pid_exists(self.pid): + raise NoSuchProcess(self.pid, self._name) + else: + raise ZombieProcess(self.pid, self._name, self._ppid) + except PermissionError: + raise AccessDenied(self.pid, self._name) + except OSError: + if self.pid == 0: + if 0 in pids(): + raise AccessDenied(self.pid, self._name) + else: + raise + raise + return wrapper + + +class Process(object): + """Wrapper class around underlying C implementation.""" + + __slots__ = ["pid", "_name", "_ppid", "_procfs_path", "_cache"] + + def __init__(self, pid): + self.pid = pid + self._name = None + self._ppid = None + self._procfs_path = get_procfs_path() + + def _assert_alive(self): + """Raise NSP if the process disappeared on us.""" + # For those C function who do not raise NSP, possibly returning + # incorrect or incomplete result. + os.stat('%s/%s' % (self._procfs_path, self.pid)) + + def oneshot_enter(self): + self._proc_name_and_args.cache_activate(self) + self._proc_basic_info.cache_activate(self) + self._proc_cred.cache_activate(self) + + def oneshot_exit(self): + self._proc_name_and_args.cache_deactivate(self) + self._proc_basic_info.cache_deactivate(self) + self._proc_cred.cache_deactivate(self) + + @wrap_exceptions + @memoize_when_activated + def _proc_name_and_args(self): + return cext.proc_name_and_args(self.pid, self._procfs_path) + + @wrap_exceptions + @memoize_when_activated + def _proc_basic_info(self): + if self.pid == 0 and not \ + os.path.exists('%s/%s/psinfo' % (self._procfs_path, self.pid)): + raise AccessDenied(self.pid) + ret = cext.proc_basic_info(self.pid, self._procfs_path) + assert len(ret) == len(proc_info_map) + return ret + + @wrap_exceptions + @memoize_when_activated + def _proc_cred(self): + return cext.proc_cred(self.pid, self._procfs_path) + + @wrap_exceptions + def name(self): + # note: max len == 15 + return self._proc_name_and_args()[0] + + @wrap_exceptions + def exe(self): + try: + return os.readlink( + "%s/%s/path/a.out" % (self._procfs_path, self.pid)) + except OSError: + pass # continue and guess the exe name from the cmdline + # Will be guessed later from cmdline but we want to explicitly + # invoke cmdline here in order to get an AccessDenied + # exception if the user has not enough privileges. + self.cmdline() + return "" + + @wrap_exceptions + def cmdline(self): + return self._proc_name_and_args()[1].split(' ') + + @wrap_exceptions + def environ(self): + return cext.proc_environ(self.pid, self._procfs_path) + + @wrap_exceptions + def create_time(self): + return self._proc_basic_info()[proc_info_map['create_time']] + + @wrap_exceptions + def num_threads(self): + return self._proc_basic_info()[proc_info_map['num_threads']] + + @wrap_exceptions + def nice_get(self): + # Note #1: getpriority(3) doesn't work for realtime processes. + # Psinfo is what ps uses, see: + # https://github.com/giampaolo/psutil/issues/1194 + return self._proc_basic_info()[proc_info_map['nice']] + + @wrap_exceptions + def nice_set(self, value): + if self.pid in (2, 3): + # Special case PIDs: internally setpriority(3) return ESRCH + # (no such process), no matter what. + # The process actually exists though, as it has a name, + # creation time, etc. + raise AccessDenied(self.pid, self._name) + return cext_posix.setpriority(self.pid, value) + + @wrap_exceptions + def ppid(self): + self._ppid = self._proc_basic_info()[proc_info_map['ppid']] + return self._ppid + + @wrap_exceptions + def uids(self): + try: + real, effective, saved, _, _, _ = self._proc_cred() + except AccessDenied: + real = self._proc_basic_info()[proc_info_map['uid']] + effective = self._proc_basic_info()[proc_info_map['euid']] + saved = None + return _common.puids(real, effective, saved) + + @wrap_exceptions + def gids(self): + try: + _, _, _, real, effective, saved = self._proc_cred() + except AccessDenied: + real = self._proc_basic_info()[proc_info_map['gid']] + effective = self._proc_basic_info()[proc_info_map['egid']] + saved = None + return _common.puids(real, effective, saved) + + @wrap_exceptions + def cpu_times(self): + try: + times = cext.proc_cpu_times(self.pid, self._procfs_path) + except OSError as err: + if err.errno == errno.EOVERFLOW and not IS_64_BIT: + # We may get here if we attempt to query a 64bit process + # with a 32bit python. + # Error originates from read() and also tools like "cat" + # fail in the same way (!). + # Since there simply is no way to determine CPU times we + # return 0.0 as a fallback. See: + # https://github.com/giampaolo/psutil/issues/857 + times = (0.0, 0.0, 0.0, 0.0) + else: + raise + return _common.pcputimes(*times) + + @wrap_exceptions + def cpu_num(self): + return cext.proc_cpu_num(self.pid, self._procfs_path) + + @wrap_exceptions + def terminal(self): + procfs_path = self._procfs_path + hit_enoent = False + tty = wrap_exceptions( + self._proc_basic_info()[proc_info_map['ttynr']]) + if tty != cext.PRNODEV: + for x in (0, 1, 2, 255): + try: + return os.readlink( + '%s/%d/path/%d' % (procfs_path, self.pid, x)) + except FileNotFoundError: + hit_enoent = True + continue + if hit_enoent: + self._assert_alive() + + @wrap_exceptions + def cwd(self): + # /proc/PID/path/cwd may not be resolved by readlink() even if + # it exists (ls shows it). If that's the case and the process + # is still alive return None (we can return None also on BSD). + # Reference: http://goo.gl/55XgO + procfs_path = self._procfs_path + try: + return os.readlink("%s/%s/path/cwd" % (procfs_path, self.pid)) + except FileNotFoundError: + os.stat("%s/%s" % (procfs_path, self.pid)) # raise NSP or AD + return None + + @wrap_exceptions + def memory_info(self): + ret = self._proc_basic_info() + rss = ret[proc_info_map['rss']] * 1024 + vms = ret[proc_info_map['vms']] * 1024 + return pmem(rss, vms) + + memory_full_info = memory_info + + @wrap_exceptions + def status(self): + code = self._proc_basic_info()[proc_info_map['status']] + # XXX is '?' legit? (we're not supposed to return it anyway) + return PROC_STATUSES.get(code, '?') + + @wrap_exceptions + def threads(self): + procfs_path = self._procfs_path + ret = [] + tids = os.listdir('%s/%d/lwp' % (procfs_path, self.pid)) + hit_enoent = False + for tid in tids: + tid = int(tid) + try: + utime, stime = cext.query_process_thread( + self.pid, tid, procfs_path) + except EnvironmentError as err: + if err.errno == errno.EOVERFLOW and not IS_64_BIT: + # We may get here if we attempt to query a 64bit process + # with a 32bit python. + # Error originates from read() and also tools like "cat" + # fail in the same way (!). + # Since there simply is no way to determine CPU times we + # return 0.0 as a fallback. See: + # https://github.com/giampaolo/psutil/issues/857 + continue + # ENOENT == thread gone in meantime + if err.errno == errno.ENOENT: + hit_enoent = True + continue + raise + else: + nt = _common.pthread(tid, utime, stime) + ret.append(nt) + if hit_enoent: + self._assert_alive() + return ret + + @wrap_exceptions + def open_files(self): + retlist = [] + hit_enoent = False + procfs_path = self._procfs_path + pathdir = '%s/%d/path' % (procfs_path, self.pid) + for fd in os.listdir('%s/%d/fd' % (procfs_path, self.pid)): + path = os.path.join(pathdir, fd) + if os.path.islink(path): + try: + file = os.readlink(path) + except FileNotFoundError: + hit_enoent = True + continue + else: + if isfile_strict(file): + retlist.append(_common.popenfile(file, int(fd))) + if hit_enoent: + self._assert_alive() + return retlist + + def _get_unix_sockets(self, pid): + """Get UNIX sockets used by process by parsing 'pfiles' output.""" + # TODO: rewrite this in C (...but the damn netstat source code + # does not include this part! Argh!!) + cmd = "pfiles %s" % pid + p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, + stderr=subprocess.PIPE) + stdout, stderr = p.communicate() + if PY3: + stdout, stderr = [x.decode(sys.stdout.encoding) + for x in (stdout, stderr)] + if p.returncode != 0: + if 'permission denied' in stderr.lower(): + raise AccessDenied(self.pid, self._name) + if 'no such process' in stderr.lower(): + raise NoSuchProcess(self.pid, self._name) + raise RuntimeError("%r command error\n%s" % (cmd, stderr)) + + lines = stdout.split('\n')[2:] + for i, line in enumerate(lines): + line = line.lstrip() + if line.startswith('sockname: AF_UNIX'): + path = line.split(' ', 2)[2] + type = lines[i - 2].strip() + if type == 'SOCK_STREAM': + type = socket.SOCK_STREAM + elif type == 'SOCK_DGRAM': + type = socket.SOCK_DGRAM + else: + type = -1 + yield (-1, socket.AF_UNIX, type, path, "", _common.CONN_NONE) + + @wrap_exceptions + def connections(self, kind='inet'): + ret = net_connections(kind, _pid=self.pid) + # The underlying C implementation retrieves all OS connections + # and filters them by PID. At this point we can't tell whether + # an empty list means there were no connections for process or + # process is no longer active so we force NSP in case the PID + # is no longer there. + if not ret: + # will raise NSP if process is gone + os.stat('%s/%s' % (self._procfs_path, self.pid)) + + # UNIX sockets + if kind in ('all', 'unix'): + ret.extend([_common.pconn(*conn) for conn in + self._get_unix_sockets(self.pid)]) + return ret + + nt_mmap_grouped = namedtuple('mmap', 'path rss anon locked') + nt_mmap_ext = namedtuple('mmap', 'addr perms path rss anon locked') + + @wrap_exceptions + def memory_maps(self): + def toaddr(start, end): + return '%s-%s' % (hex(start)[2:].strip('L'), + hex(end)[2:].strip('L')) + + procfs_path = self._procfs_path + retlist = [] + try: + rawlist = cext.proc_memory_maps(self.pid, procfs_path) + except OSError as err: + if err.errno == errno.EOVERFLOW and not IS_64_BIT: + # We may get here if we attempt to query a 64bit process + # with a 32bit python. + # Error originates from read() and also tools like "cat" + # fail in the same way (!). + # Since there simply is no way to determine CPU times we + # return 0.0 as a fallback. See: + # https://github.com/giampaolo/psutil/issues/857 + return [] + else: + raise + hit_enoent = False + for item in rawlist: + addr, addrsize, perm, name, rss, anon, locked = item + addr = toaddr(addr, addrsize) + if not name.startswith('['): + try: + name = os.readlink( + '%s/%s/path/%s' % (procfs_path, self.pid, name)) + except OSError as err: + if err.errno == errno.ENOENT: + # sometimes the link may not be resolved by + # readlink() even if it exists (ls shows it). + # If that's the case we just return the + # unresolved link path. + # This seems an incosistency with /proc similar + # to: http://goo.gl/55XgO + name = '%s/%s/path/%s' % (procfs_path, self.pid, name) + hit_enoent = True + else: + raise + retlist.append((addr, perm, name, rss, anon, locked)) + if hit_enoent: + self._assert_alive() + return retlist + + @wrap_exceptions + def num_fds(self): + return len(os.listdir("%s/%s/fd" % (self._procfs_path, self.pid))) + + @wrap_exceptions + def num_ctx_switches(self): + return _common.pctxsw( + *cext.proc_num_ctx_switches(self.pid, self._procfs_path)) + + @wrap_exceptions + def wait(self, timeout=None): + return _psposix.wait_pid(self.pid, timeout, self._name) diff --git a/lib/psutil/_psutil_linux.abi3.so b/lib/psutil/_psutil_linux.abi3.so Binary files differnew file mode 100755 index 0000000..d6aa4c1 --- /dev/null +++ b/lib/psutil/_psutil_linux.abi3.so diff --git a/lib/psutil/_psutil_posix.abi3.so b/lib/psutil/_psutil_posix.abi3.so Binary files differnew file mode 100755 index 0000000..0156ed1 --- /dev/null +++ b/lib/psutil/_psutil_posix.abi3.so diff --git a/lib/psutil/_pswindows.py b/lib/psutil/_pswindows.py new file mode 100644 index 0000000..49f8b05 --- /dev/null +++ b/lib/psutil/_pswindows.py @@ -0,0 +1,1120 @@ +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Windows platform implementation.""" + +import contextlib +import errno +import functools +import os +import signal +import sys +import time +from collections import namedtuple + +from . import _common +from ._common import ENCODING +from ._common import ENCODING_ERRS +from ._common import AccessDenied +from ._common import NoSuchProcess +from ._common import TimeoutExpired +from ._common import conn_tmap +from ._common import conn_to_ntuple +from ._common import debug +from ._common import isfile_strict +from ._common import memoize +from ._common import memoize_when_activated +from ._common import parse_environ_block +from ._common import usage_percent +from ._compat import PY3 +from ._compat import long +from ._compat import lru_cache +from ._compat import range +from ._compat import unicode +from ._psutil_windows import ABOVE_NORMAL_PRIORITY_CLASS +from ._psutil_windows import BELOW_NORMAL_PRIORITY_CLASS +from ._psutil_windows import HIGH_PRIORITY_CLASS +from ._psutil_windows import IDLE_PRIORITY_CLASS +from ._psutil_windows import NORMAL_PRIORITY_CLASS +from ._psutil_windows import REALTIME_PRIORITY_CLASS + + +try: + from . import _psutil_windows as cext +except ImportError as err: + if str(err).lower().startswith("dll load failed") and \ + sys.getwindowsversion()[0] < 6: + # We may get here if: + # 1) we are on an old Windows version + # 2) psutil was installed via pip + wheel + # See: https://github.com/giampaolo/psutil/issues/811 + msg = "this Windows version is too old (< Windows Vista); " + msg += "psutil 3.4.2 is the latest version which supports Windows " + msg += "2000, XP and 2003 server" + raise RuntimeError(msg) + else: + raise + +if sys.version_info >= (3, 4): + import enum +else: + enum = None + +# process priority constants, import from __init__.py: +# http://msdn.microsoft.com/en-us/library/ms686219(v=vs.85).aspx +__extra__all__ = [ + "win_service_iter", "win_service_get", + # Process priority + "ABOVE_NORMAL_PRIORITY_CLASS", "BELOW_NORMAL_PRIORITY_CLASS", + "HIGH_PRIORITY_CLASS", "IDLE_PRIORITY_CLASS", "NORMAL_PRIORITY_CLASS", + "REALTIME_PRIORITY_CLASS", + # IO priority + "IOPRIO_VERYLOW", "IOPRIO_LOW", "IOPRIO_NORMAL", "IOPRIO_HIGH", + # others + "CONN_DELETE_TCB", "AF_LINK", +] + + +# ===================================================================== +# --- globals +# ===================================================================== + +CONN_DELETE_TCB = "DELETE_TCB" +ERROR_PARTIAL_COPY = 299 +PYPY = '__pypy__' in sys.builtin_module_names + +if enum is None: + AF_LINK = -1 +else: + AddressFamily = enum.IntEnum('AddressFamily', {'AF_LINK': -1}) + AF_LINK = AddressFamily.AF_LINK + +TCP_STATUSES = { + cext.MIB_TCP_STATE_ESTAB: _common.CONN_ESTABLISHED, + cext.MIB_TCP_STATE_SYN_SENT: _common.CONN_SYN_SENT, + cext.MIB_TCP_STATE_SYN_RCVD: _common.CONN_SYN_RECV, + cext.MIB_TCP_STATE_FIN_WAIT1: _common.CONN_FIN_WAIT1, + cext.MIB_TCP_STATE_FIN_WAIT2: _common.CONN_FIN_WAIT2, + cext.MIB_TCP_STATE_TIME_WAIT: _common.CONN_TIME_WAIT, + cext.MIB_TCP_STATE_CLOSED: _common.CONN_CLOSE, + cext.MIB_TCP_STATE_CLOSE_WAIT: _common.CONN_CLOSE_WAIT, + cext.MIB_TCP_STATE_LAST_ACK: _common.CONN_LAST_ACK, + cext.MIB_TCP_STATE_LISTEN: _common.CONN_LISTEN, + cext.MIB_TCP_STATE_CLOSING: _common.CONN_CLOSING, + cext.MIB_TCP_STATE_DELETE_TCB: CONN_DELETE_TCB, + cext.PSUTIL_CONN_NONE: _common.CONN_NONE, +} + +if enum is not None: + class Priority(enum.IntEnum): + ABOVE_NORMAL_PRIORITY_CLASS = ABOVE_NORMAL_PRIORITY_CLASS + BELOW_NORMAL_PRIORITY_CLASS = BELOW_NORMAL_PRIORITY_CLASS + HIGH_PRIORITY_CLASS = HIGH_PRIORITY_CLASS + IDLE_PRIORITY_CLASS = IDLE_PRIORITY_CLASS + NORMAL_PRIORITY_CLASS = NORMAL_PRIORITY_CLASS + REALTIME_PRIORITY_CLASS = REALTIME_PRIORITY_CLASS + + globals().update(Priority.__members__) + +if enum is None: + IOPRIO_VERYLOW = 0 + IOPRIO_LOW = 1 + IOPRIO_NORMAL = 2 + IOPRIO_HIGH = 3 +else: + class IOPriority(enum.IntEnum): + IOPRIO_VERYLOW = 0 + IOPRIO_LOW = 1 + IOPRIO_NORMAL = 2 + IOPRIO_HIGH = 3 + globals().update(IOPriority.__members__) + +pinfo_map = dict( + num_handles=0, + ctx_switches=1, + user_time=2, + kernel_time=3, + create_time=4, + num_threads=5, + io_rcount=6, + io_wcount=7, + io_rbytes=8, + io_wbytes=9, + io_count_others=10, + io_bytes_others=11, + num_page_faults=12, + peak_wset=13, + wset=14, + peak_paged_pool=15, + paged_pool=16, + peak_non_paged_pool=17, + non_paged_pool=18, + pagefile=19, + peak_pagefile=20, + mem_private=21, +) + + +# ===================================================================== +# --- named tuples +# ===================================================================== + + +# psutil.cpu_times() +scputimes = namedtuple('scputimes', + ['user', 'system', 'idle', 'interrupt', 'dpc']) +# psutil.virtual_memory() +svmem = namedtuple('svmem', ['total', 'available', 'percent', 'used', 'free']) +# psutil.Process.memory_info() +pmem = namedtuple( + 'pmem', ['rss', 'vms', + 'num_page_faults', 'peak_wset', 'wset', 'peak_paged_pool', + 'paged_pool', 'peak_nonpaged_pool', 'nonpaged_pool', + 'pagefile', 'peak_pagefile', 'private']) +# psutil.Process.memory_full_info() +pfullmem = namedtuple('pfullmem', pmem._fields + ('uss', )) +# psutil.Process.memory_maps(grouped=True) +pmmap_grouped = namedtuple('pmmap_grouped', ['path', 'rss']) +# psutil.Process.memory_maps(grouped=False) +pmmap_ext = namedtuple( + 'pmmap_ext', 'addr perms ' + ' '.join(pmmap_grouped._fields)) +# psutil.Process.io_counters() +pio = namedtuple('pio', ['read_count', 'write_count', + 'read_bytes', 'write_bytes', + 'other_count', 'other_bytes']) + + +# ===================================================================== +# --- utils +# ===================================================================== + + +@lru_cache(maxsize=512) +def convert_dos_path(s): + r"""Convert paths using native DOS format like: + "\Device\HarddiskVolume1\Windows\systemew\file.txt" + into: + "C:\Windows\systemew\file.txt" + """ + rawdrive = '\\'.join(s.split('\\')[:3]) + driveletter = cext.QueryDosDevice(rawdrive) + remainder = s[len(rawdrive):] + return os.path.join(driveletter, remainder) + + +def py2_strencode(s): + """Encode a unicode string to a byte string by using the default fs + encoding + "replace" error handler. + """ + if PY3: + return s + else: + if isinstance(s, str): + return s + else: + return s.encode(ENCODING, ENCODING_ERRS) + + +@memoize +def getpagesize(): + return cext.getpagesize() + + +# ===================================================================== +# --- memory +# ===================================================================== + + +def virtual_memory(): + """System virtual memory as a namedtuple.""" + mem = cext.virtual_mem() + totphys, availphys, totsys, availsys = mem + # + total = totphys + avail = availphys + free = availphys + used = total - avail + percent = usage_percent((total - avail), total, round_=1) + return svmem(total, avail, percent, used, free) + + +def swap_memory(): + """Swap system memory as a (total, used, free, sin, sout) tuple.""" + mem = cext.virtual_mem() + + total_phys = mem[0] + total_system = mem[2] + + # system memory (commit total/limit) is the sum of physical and swap + # thus physical memory values need to be substracted to get swap values + total = total_system - total_phys + # commit total is incremented immediately (decrementing free_system) + # while the corresponding free physical value is not decremented until + # pages are accessed, so we can't use free system memory for swap. + # instead, we calculate page file usage based on performance counter + if (total > 0): + percentswap = cext.getpercentswap() + used = int(0.01 * percentswap * total) + else: + used = 0 + free = total - used + percent = usage_percent(used, total, round_=1) + return _common.sswap(total, used, free, percent, 0, 0) + + +# ===================================================================== +# --- disk +# ===================================================================== + + +disk_io_counters = cext.disk_io_counters + + +def disk_usage(path): + """Return disk usage associated with path.""" + if PY3 and isinstance(path, bytes): + # XXX: do we want to use "strict"? Probably yes, in order + # to fail immediately. After all we are accepting input here... + path = path.decode(ENCODING, errors="strict") + total, free = cext.disk_usage(path) + used = total - free + percent = usage_percent(used, total, round_=1) + return _common.sdiskusage(total, used, free, percent) + + +def disk_partitions(all): + """Return disk partitions.""" + rawlist = cext.disk_partitions(all) + return [_common.sdiskpart(*x) for x in rawlist] + + +# ===================================================================== +# --- CPU +# ===================================================================== + + +def cpu_times(): + """Return system CPU times as a named tuple.""" + user, system, idle = cext.cpu_times() + # Internally, GetSystemTimes() is used, and it doesn't return + # interrupt and dpc times. cext.per_cpu_times() does, so we + # rely on it to get those only. + percpu_summed = scputimes(*[sum(n) for n in zip(*cext.per_cpu_times())]) + return scputimes(user, system, idle, + percpu_summed.interrupt, percpu_summed.dpc) + + +def per_cpu_times(): + """Return system per-CPU times as a list of named tuples.""" + ret = [] + for user, system, idle, interrupt, dpc in cext.per_cpu_times(): + item = scputimes(user, system, idle, interrupt, dpc) + ret.append(item) + return ret + + +def cpu_count_logical(): + """Return the number of logical CPUs in the system.""" + return cext.cpu_count_logical() + + +def cpu_count_cores(): + """Return the number of CPU cores in the system.""" + return cext.cpu_count_cores() + + +def cpu_stats(): + """Return CPU statistics.""" + ctx_switches, interrupts, dpcs, syscalls = cext.cpu_stats() + soft_interrupts = 0 + return _common.scpustats(ctx_switches, interrupts, soft_interrupts, + syscalls) + + +def cpu_freq(): + """Return CPU frequency. + On Windows per-cpu frequency is not supported. + """ + curr, max_ = cext.cpu_freq() + min_ = 0.0 + return [_common.scpufreq(float(curr), min_, float(max_))] + + +_loadavg_inititialized = False + + +def getloadavg(): + """Return the number of processes in the system run queue averaged + over the last 1, 5, and 15 minutes respectively as a tuple""" + global _loadavg_inititialized + + if not _loadavg_inititialized: + cext.init_loadavg_counter() + _loadavg_inititialized = True + + # Drop to 2 decimal points which is what Linux does + raw_loads = cext.getloadavg() + return tuple([round(load, 2) for load in raw_loads]) + + +# ===================================================================== +# --- network +# ===================================================================== + + +def net_connections(kind, _pid=-1): + """Return socket connections. If pid == -1 return system-wide + connections (as opposed to connections opened by one process only). + """ + if kind not in conn_tmap: + raise ValueError("invalid %r kind argument; choose between %s" + % (kind, ', '.join([repr(x) for x in conn_tmap]))) + families, types = conn_tmap[kind] + rawlist = cext.net_connections(_pid, families, types) + ret = set() + for item in rawlist: + fd, fam, type, laddr, raddr, status, pid = item + nt = conn_to_ntuple(fd, fam, type, laddr, raddr, status, TCP_STATUSES, + pid=pid if _pid == -1 else None) + ret.add(nt) + return list(ret) + + +def net_if_stats(): + """Get NIC stats (isup, duplex, speed, mtu).""" + ret = {} + rawdict = cext.net_if_stats() + for name, items in rawdict.items(): + if not PY3: + assert isinstance(name, unicode), type(name) + name = py2_strencode(name) + isup, duplex, speed, mtu = items + if hasattr(_common, 'NicDuplex'): + duplex = _common.NicDuplex(duplex) + ret[name] = _common.snicstats(isup, duplex, speed, mtu, '') + return ret + + +def net_io_counters(): + """Return network I/O statistics for every network interface + installed on the system as a dict of raw tuples. + """ + ret = cext.net_io_counters() + return dict([(py2_strencode(k), v) for k, v in ret.items()]) + + +def net_if_addrs(): + """Return the addresses associated to each NIC.""" + ret = [] + for items in cext.net_if_addrs(): + items = list(items) + items[0] = py2_strencode(items[0]) + ret.append(items) + return ret + + +# ===================================================================== +# --- sensors +# ===================================================================== + + +def sensors_battery(): + """Return battery information.""" + # For constants meaning see: + # https://msdn.microsoft.com/en-us/library/windows/desktop/ + # aa373232(v=vs.85).aspx + acline_status, flags, percent, secsleft = cext.sensors_battery() + power_plugged = acline_status == 1 + no_battery = bool(flags & 128) + charging = bool(flags & 8) + + if no_battery: + return None + if power_plugged or charging: + secsleft = _common.POWER_TIME_UNLIMITED + elif secsleft == -1: + secsleft = _common.POWER_TIME_UNKNOWN + + return _common.sbattery(percent, secsleft, power_plugged) + + +# ===================================================================== +# --- other system functions +# ===================================================================== + + +_last_btime = 0 + + +def boot_time(): + """The system boot time expressed in seconds since the epoch.""" + # This dirty hack is to adjust the precision of the returned + # value which may have a 1 second fluctuation, see: + # https://github.com/giampaolo/psutil/issues/1007 + global _last_btime + ret = float(cext.boot_time()) + if abs(ret - _last_btime) <= 1: + return _last_btime + else: + _last_btime = ret + return ret + + +def users(): + """Return currently connected users as a list of namedtuples.""" + retlist = [] + rawlist = cext.users() + for item in rawlist: + user, hostname, tstamp = item + user = py2_strencode(user) + nt = _common.suser(user, None, hostname, tstamp, None) + retlist.append(nt) + return retlist + + +# ===================================================================== +# --- Windows services +# ===================================================================== + + +def win_service_iter(): + """Yields a list of WindowsService instances.""" + for name, display_name in cext.winservice_enumerate(): + yield WindowsService(py2_strencode(name), py2_strencode(display_name)) + + +def win_service_get(name): + """Open a Windows service and return it as a WindowsService instance.""" + service = WindowsService(name, None) + service._display_name = service._query_config()['display_name'] + return service + + +class WindowsService(object): + """Represents an installed Windows service.""" + + def __init__(self, name, display_name): + self._name = name + self._display_name = display_name + + def __str__(self): + details = "(name=%r, display_name=%r)" % ( + self._name, self._display_name) + return "%s%s" % (self.__class__.__name__, details) + + def __repr__(self): + return "<%s at %s>" % (self.__str__(), id(self)) + + def __eq__(self, other): + # Test for equality with another WindosService object based + # on name. + if not isinstance(other, WindowsService): + return NotImplemented + return self._name == other._name + + def __ne__(self, other): + return not self == other + + def _query_config(self): + with self._wrap_exceptions(): + display_name, binpath, username, start_type = \ + cext.winservice_query_config(self._name) + # XXX - update _self.display_name? + return dict( + display_name=py2_strencode(display_name), + binpath=py2_strencode(binpath), + username=py2_strencode(username), + start_type=py2_strencode(start_type)) + + def _query_status(self): + with self._wrap_exceptions(): + status, pid = cext.winservice_query_status(self._name) + if pid == 0: + pid = None + return dict(status=status, pid=pid) + + @contextlib.contextmanager + def _wrap_exceptions(self): + """Ctx manager which translates bare OSError and WindowsError + exceptions into NoSuchProcess and AccessDenied. + """ + try: + yield + except OSError as err: + if is_permission_err(err): + raise AccessDenied( + pid=None, name=self._name, + msg="service %r is not querable (not enough privileges)" % + self._name) + elif err.winerror in (cext.ERROR_INVALID_NAME, + cext.ERROR_SERVICE_DOES_NOT_EXIST): + raise NoSuchProcess( + pid=None, name=self._name, + msg="service %r does not exist)" % self._name) + else: + raise + + # config query + + def name(self): + """The service name. This string is how a service is referenced + and can be passed to win_service_get() to get a new + WindowsService instance. + """ + return self._name + + def display_name(self): + """The service display name. The value is cached when this class + is instantiated. + """ + return self._display_name + + def binpath(self): + """The fully qualified path to the service binary/exe file as + a string, including command line arguments. + """ + return self._query_config()['binpath'] + + def username(self): + """The name of the user that owns this service.""" + return self._query_config()['username'] + + def start_type(self): + """A string which can either be "automatic", "manual" or + "disabled". + """ + return self._query_config()['start_type'] + + # status query + + def pid(self): + """The process PID, if any, else None. This can be passed + to Process class to control the service's process. + """ + return self._query_status()['pid'] + + def status(self): + """Service status as a string.""" + return self._query_status()['status'] + + def description(self): + """Service long description.""" + return py2_strencode(cext.winservice_query_descr(self.name())) + + # utils + + def as_dict(self): + """Utility method retrieving all the information above as a + dictionary. + """ + d = self._query_config() + d.update(self._query_status()) + d['name'] = self.name() + d['display_name'] = self.display_name() + d['description'] = self.description() + return d + + # actions + # XXX: the necessary C bindings for start() and stop() are + # implemented but for now I prefer not to expose them. + # I may change my mind in the future. Reasons: + # - they require Administrator privileges + # - can't implement a timeout for stop() (unless by using a thread, + # which sucks) + # - would require adding ServiceAlreadyStarted and + # ServiceAlreadyStopped exceptions, adding two new APIs. + # - we might also want to have modify(), which would basically mean + # rewriting win32serviceutil.ChangeServiceConfig, which involves a + # lot of stuff (and API constants which would pollute the API), see: + # http://pyxr.sourceforge.net/PyXR/c/python24/lib/site-packages/ + # win32/lib/win32serviceutil.py.html#0175 + # - psutil is typically about "read only" monitoring stuff; + # win_service_* APIs should only be used to retrieve a service and + # check whether it's running + + # def start(self, timeout=None): + # with self._wrap_exceptions(): + # cext.winservice_start(self.name()) + # if timeout: + # giveup_at = time.time() + timeout + # while True: + # if self.status() == "running": + # return + # else: + # if time.time() > giveup_at: + # raise TimeoutExpired(timeout) + # else: + # time.sleep(.1) + + # def stop(self): + # # Note: timeout is not implemented because it's just not + # # possible, see: + # # http://stackoverflow.com/questions/11973228/ + # with self._wrap_exceptions(): + # return cext.winservice_stop(self.name()) + + +# ===================================================================== +# --- processes +# ===================================================================== + + +pids = cext.pids +pid_exists = cext.pid_exists +ppid_map = cext.ppid_map # used internally by Process.children() + + +def is_permission_err(exc): + """Return True if this is a permission error.""" + assert isinstance(exc, OSError), exc + # On Python 2 OSError doesn't always have 'winerror'. Sometimes + # it does, in which case the original exception was WindowsError + # (which is a subclass of OSError). + return exc.errno in (errno.EPERM, errno.EACCES) or \ + getattr(exc, "winerror", -1) in (cext.ERROR_ACCESS_DENIED, + cext.ERROR_PRIVILEGE_NOT_HELD) + + +def convert_oserror(exc, pid=None, name=None): + """Convert OSError into NoSuchProcess or AccessDenied.""" + assert isinstance(exc, OSError), exc + if is_permission_err(exc): + return AccessDenied(pid=pid, name=name) + if exc.errno == errno.ESRCH: + return NoSuchProcess(pid=pid, name=name) + raise exc + + +def wrap_exceptions(fun): + """Decorator which converts OSError into NoSuchProcess or AccessDenied.""" + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + try: + return fun(self, *args, **kwargs) + except OSError as err: + raise convert_oserror(err, pid=self.pid, name=self._name) + return wrapper + + +def retry_error_partial_copy(fun): + """Workaround for https://github.com/giampaolo/psutil/issues/875. + See: https://stackoverflow.com/questions/4457745#4457745 + """ + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + delay = 0.0001 + times = 33 + for x in range(times): # retries for roughly 1 second + try: + return fun(self, *args, **kwargs) + except WindowsError as _: + err = _ + if err.winerror == ERROR_PARTIAL_COPY: + time.sleep(delay) + delay = min(delay * 2, 0.04) + continue + else: + raise + else: + msg = "%s retried %s times, converted to AccessDenied as it's " \ + "still returning %r" % (fun, times, err) + raise AccessDenied(pid=self.pid, name=self._name, msg=msg) + return wrapper + + +class Process(object): + """Wrapper class around underlying C implementation.""" + + __slots__ = ["pid", "_name", "_ppid", "_cache"] + + def __init__(self, pid): + self.pid = pid + self._name = None + self._ppid = None + + # --- oneshot() stuff + + def oneshot_enter(self): + self._proc_info.cache_activate(self) + self.exe.cache_activate(self) + + def oneshot_exit(self): + self._proc_info.cache_deactivate(self) + self.exe.cache_deactivate(self) + + @memoize_when_activated + def _proc_info(self): + """Return multiple information about this process as a + raw tuple. + """ + ret = cext.proc_info(self.pid) + assert len(ret) == len(pinfo_map) + return ret + + def name(self): + """Return process name, which on Windows is always the final + part of the executable. + """ + # This is how PIDs 0 and 4 are always represented in taskmgr + # and process-hacker. + if self.pid == 0: + return "System Idle Process" + if self.pid == 4: + return "System" + return os.path.basename(self.exe()) + + @wrap_exceptions + @memoize_when_activated + def exe(self): + if PYPY: + try: + exe = cext.proc_exe(self.pid) + except WindowsError as err: + # 24 = ERROR_TOO_MANY_OPEN_FILES. Not sure why this happens + # (perhaps PyPy's JIT delaying garbage collection of files?). + if err.errno == 24: + debug("%r translated into AccessDenied" % err) + raise AccessDenied(self.pid, self._name) + raise + else: + exe = cext.proc_exe(self.pid) + if not PY3: + exe = py2_strencode(exe) + if exe.startswith('\\'): + return convert_dos_path(exe) + return exe # May be "Registry", "MemCompression", ... + + @wrap_exceptions + @retry_error_partial_copy + def cmdline(self): + if cext.WINVER >= cext.WINDOWS_8_1: + # PEB method detects cmdline changes but requires more + # privileges: https://github.com/giampaolo/psutil/pull/1398 + try: + ret = cext.proc_cmdline(self.pid, use_peb=True) + except OSError as err: + if is_permission_err(err): + ret = cext.proc_cmdline(self.pid, use_peb=False) + else: + raise + else: + ret = cext.proc_cmdline(self.pid, use_peb=True) + if PY3: + return ret + else: + return [py2_strencode(s) for s in ret] + + @wrap_exceptions + @retry_error_partial_copy + def environ(self): + ustr = cext.proc_environ(self.pid) + if ustr and not PY3: + assert isinstance(ustr, unicode), type(ustr) + return parse_environ_block(py2_strencode(ustr)) + + def ppid(self): + try: + return ppid_map()[self.pid] + except KeyError: + raise NoSuchProcess(self.pid, self._name) + + def _get_raw_meminfo(self): + try: + return cext.proc_memory_info(self.pid) + except OSError as err: + if is_permission_err(err): + # TODO: the C ext can probably be refactored in order + # to get this from cext.proc_info() + info = self._proc_info() + return ( + info[pinfo_map['num_page_faults']], + info[pinfo_map['peak_wset']], + info[pinfo_map['wset']], + info[pinfo_map['peak_paged_pool']], + info[pinfo_map['paged_pool']], + info[pinfo_map['peak_non_paged_pool']], + info[pinfo_map['non_paged_pool']], + info[pinfo_map['pagefile']], + info[pinfo_map['peak_pagefile']], + info[pinfo_map['mem_private']], + ) + raise + + @wrap_exceptions + def memory_info(self): + # on Windows RSS == WorkingSetSize and VSM == PagefileUsage. + # Underlying C function returns fields of PROCESS_MEMORY_COUNTERS + # struct. + t = self._get_raw_meminfo() + rss = t[2] # wset + vms = t[7] # pagefile + return pmem(*(rss, vms, ) + t) + + @wrap_exceptions + def memory_full_info(self): + basic_mem = self.memory_info() + uss = cext.proc_memory_uss(self.pid) + uss *= getpagesize() + return pfullmem(*basic_mem + (uss, )) + + def memory_maps(self): + try: + raw = cext.proc_memory_maps(self.pid) + except OSError as err: + # XXX - can't use wrap_exceptions decorator as we're + # returning a generator; probably needs refactoring. + raise convert_oserror(err, self.pid, self._name) + else: + for addr, perm, path, rss in raw: + path = convert_dos_path(path) + if not PY3: + path = py2_strencode(path) + addr = hex(addr) + yield (addr, perm, path, rss) + + @wrap_exceptions + def kill(self): + return cext.proc_kill(self.pid) + + @wrap_exceptions + def send_signal(self, sig): + if sig == signal.SIGTERM: + cext.proc_kill(self.pid) + # py >= 2.7 + elif sig in (getattr(signal, "CTRL_C_EVENT", object()), + getattr(signal, "CTRL_BREAK_EVENT", object())): + os.kill(self.pid, sig) + else: + raise ValueError( + "only SIGTERM, CTRL_C_EVENT and CTRL_BREAK_EVENT signals " + "are supported on Windows") + + @wrap_exceptions + def wait(self, timeout=None): + if timeout is None: + cext_timeout = cext.INFINITE + else: + # WaitForSingleObject() expects time in milliseconds. + cext_timeout = int(timeout * 1000) + + timer = getattr(time, 'monotonic', time.time) + stop_at = timer() + timeout if timeout is not None else None + + try: + # Exit code is supposed to come from GetExitCodeProcess(). + # May also be None if OpenProcess() failed with + # ERROR_INVALID_PARAMETER, meaning PID is already gone. + exit_code = cext.proc_wait(self.pid, cext_timeout) + except cext.TimeoutExpired: + # WaitForSingleObject() returned WAIT_TIMEOUT. Just raise. + raise TimeoutExpired(timeout, self.pid, self._name) + except cext.TimeoutAbandoned: + # WaitForSingleObject() returned WAIT_ABANDONED, see: + # https://github.com/giampaolo/psutil/issues/1224 + # We'll just rely on the internal polling and return None + # when the PID disappears. Subprocess module does the same + # (return None): + # https://github.com/python/cpython/blob/ + # be50a7b627d0aa37e08fa8e2d5568891f19903ce/ + # Lib/subprocess.py#L1193-L1194 + exit_code = None + + # At this point WaitForSingleObject() returned WAIT_OBJECT_0, + # meaning the process is gone. Stupidly there are cases where + # its PID may still stick around so we do a further internal + # polling. + delay = 0.0001 + while True: + if not pid_exists(self.pid): + return exit_code + if stop_at and timer() >= stop_at: + raise TimeoutExpired(timeout, pid=self.pid, name=self._name) + time.sleep(delay) + delay = min(delay * 2, 0.04) # incremental delay + + @wrap_exceptions + def username(self): + if self.pid in (0, 4): + return 'NT AUTHORITY\\SYSTEM' + domain, user = cext.proc_username(self.pid) + return py2_strencode(domain) + '\\' + py2_strencode(user) + + @wrap_exceptions + def create_time(self): + # Note: proc_times() not put under oneshot() 'cause create_time() + # is already cached by the main Process class. + try: + user, system, created = cext.proc_times(self.pid) + return created + except OSError as err: + if is_permission_err(err): + return self._proc_info()[pinfo_map['create_time']] + raise + + @wrap_exceptions + def num_threads(self): + return self._proc_info()[pinfo_map['num_threads']] + + @wrap_exceptions + def threads(self): + rawlist = cext.proc_threads(self.pid) + retlist = [] + for thread_id, utime, stime in rawlist: + ntuple = _common.pthread(thread_id, utime, stime) + retlist.append(ntuple) + return retlist + + @wrap_exceptions + def cpu_times(self): + try: + user, system, created = cext.proc_times(self.pid) + except OSError as err: + if not is_permission_err(err): + raise + info = self._proc_info() + user = info[pinfo_map['user_time']] + system = info[pinfo_map['kernel_time']] + # Children user/system times are not retrievable (set to 0). + return _common.pcputimes(user, system, 0.0, 0.0) + + @wrap_exceptions + def suspend(self): + cext.proc_suspend_or_resume(self.pid, True) + + @wrap_exceptions + def resume(self): + cext.proc_suspend_or_resume(self.pid, False) + + @wrap_exceptions + @retry_error_partial_copy + def cwd(self): + if self.pid in (0, 4): + raise AccessDenied(self.pid, self._name) + # return a normalized pathname since the native C function appends + # "\\" at the and of the path + path = cext.proc_cwd(self.pid) + return py2_strencode(os.path.normpath(path)) + + @wrap_exceptions + def open_files(self): + if self.pid in (0, 4): + return [] + ret = set() + # Filenames come in in native format like: + # "\Device\HarddiskVolume1\Windows\systemew\file.txt" + # Convert the first part in the corresponding drive letter + # (e.g. "C:\") by using Windows's QueryDosDevice() + raw_file_names = cext.proc_open_files(self.pid) + for _file in raw_file_names: + _file = convert_dos_path(_file) + if isfile_strict(_file): + if not PY3: + _file = py2_strencode(_file) + ntuple = _common.popenfile(_file, -1) + ret.add(ntuple) + return list(ret) + + @wrap_exceptions + def connections(self, kind='inet'): + return net_connections(kind, _pid=self.pid) + + @wrap_exceptions + def nice_get(self): + value = cext.proc_priority_get(self.pid) + if enum is not None: + value = Priority(value) + return value + + @wrap_exceptions + def nice_set(self, value): + return cext.proc_priority_set(self.pid, value) + + @wrap_exceptions + def ionice_get(self): + ret = cext.proc_io_priority_get(self.pid) + if enum is not None: + ret = IOPriority(ret) + return ret + + @wrap_exceptions + def ionice_set(self, ioclass, value): + if value: + raise TypeError("value argument not accepted on Windows") + if ioclass not in (IOPRIO_VERYLOW, IOPRIO_LOW, IOPRIO_NORMAL, + IOPRIO_HIGH): + raise ValueError("%s is not a valid priority" % ioclass) + cext.proc_io_priority_set(self.pid, ioclass) + + @wrap_exceptions + def io_counters(self): + try: + ret = cext.proc_io_counters(self.pid) + except OSError as err: + if not is_permission_err(err): + raise + info = self._proc_info() + ret = ( + info[pinfo_map['io_rcount']], + info[pinfo_map['io_wcount']], + info[pinfo_map['io_rbytes']], + info[pinfo_map['io_wbytes']], + info[pinfo_map['io_count_others']], + info[pinfo_map['io_bytes_others']], + ) + return pio(*ret) + + @wrap_exceptions + def status(self): + suspended = cext.proc_is_suspended(self.pid) + if suspended: + return _common.STATUS_STOPPED + else: + return _common.STATUS_RUNNING + + @wrap_exceptions + def cpu_affinity_get(self): + def from_bitmask(x): + return [i for i in range(64) if (1 << i) & x] + bitmask = cext.proc_cpu_affinity_get(self.pid) + return from_bitmask(bitmask) + + @wrap_exceptions + def cpu_affinity_set(self, value): + def to_bitmask(ls): + if not ls: + raise ValueError("invalid argument %r" % ls) + out = 0 + for b in ls: + out |= 2 ** b + return out + + # SetProcessAffinityMask() states that ERROR_INVALID_PARAMETER + # is returned for an invalid CPU but this seems not to be true, + # therefore we check CPUs validy beforehand. + allcpus = list(range(len(per_cpu_times()))) + for cpu in value: + if cpu not in allcpus: + if not isinstance(cpu, (int, long)): + raise TypeError( + "invalid CPU %r; an integer is required" % cpu) + else: + raise ValueError("invalid CPU %r" % cpu) + + bitmask = to_bitmask(value) + cext.proc_cpu_affinity_set(self.pid, bitmask) + + @wrap_exceptions + def num_handles(self): + try: + return cext.proc_num_handles(self.pid) + except OSError as err: + if is_permission_err(err): + return self._proc_info()[pinfo_map['num_handles']] + raise + + @wrap_exceptions + def num_ctx_switches(self): + ctx_switches = self._proc_info()[pinfo_map['ctx_switches']] + # only voluntary ctx switches are supported + return _common.pctxsw(ctx_switches, 0) diff --git a/lib/psutil/tests/__init__.py b/lib/psutil/tests/__init__.py new file mode 100644 index 0000000..ec9c748 --- /dev/null +++ b/lib/psutil/tests/__init__.py @@ -0,0 +1,1820 @@ +# -*- coding: utf-8 -*- + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Test utilities. +""" + +from __future__ import print_function + +import atexit +import contextlib +import ctypes +import errno +import functools +import gc +import inspect +import os +import platform +import random +import re +import select +import shlex +import shutil +import signal +import socket +import stat +import subprocess +import sys +import tempfile +import textwrap +import threading +import time +import unittest +import warnings +from socket import AF_INET +from socket import AF_INET6 +from socket import SOCK_STREAM + +import psutil +from psutil import AIX +from psutil import FREEBSD +from psutil import LINUX +from psutil import MACOS +from psutil import POSIX +from psutil import SUNOS +from psutil import WINDOWS +from psutil._common import bytes2human +from psutil._common import memoize +from psutil._common import print_color +from psutil._common import supports_ipv6 +from psutil._compat import PY3 +from psutil._compat import FileExistsError +from psutil._compat import FileNotFoundError +from psutil._compat import range +from psutil._compat import super +from psutil._compat import u +from psutil._compat import unicode +from psutil._compat import which + + +try: + from unittest import mock # py3 +except ImportError: + with warnings.catch_warnings(): + warnings.simplefilter("ignore") + import mock # NOQA - requires "pip install mock" + +if sys.version_info >= (3, 4): + import enum +else: + enum = None + +if POSIX: + from psutil._psposix import wait_pid + + +__all__ = [ + # constants + 'APPVEYOR', 'DEVNULL', 'GLOBAL_TIMEOUT', 'TOLERANCE_SYS_MEM', 'NO_RETRIES', + 'PYPY', 'PYTHON_EXE', 'ROOT_DIR', 'SCRIPTS_DIR', 'TESTFN_PREFIX', + 'UNICODE_SUFFIX', 'INVALID_UNICODE_SUFFIX', + 'CI_TESTING', 'VALID_PROC_STATUSES', 'TOLERANCE_DISK_USAGE', 'IS_64BIT', + "HAS_CPU_AFFINITY", "HAS_CPU_FREQ", "HAS_ENVIRON", "HAS_PROC_IO_COUNTERS", + "HAS_IONICE", "HAS_MEMORY_MAPS", "HAS_PROC_CPU_NUM", "HAS_RLIMIT", + "HAS_SENSORS_BATTERY", "HAS_BATTERY", "HAS_SENSORS_FANS", + "HAS_SENSORS_TEMPERATURES", "HAS_MEMORY_FULL_INFO", "MACOS_11PLUS", + "MACOS_12PLUS", + # subprocesses + 'pyrun', 'terminate', 'reap_children', 'spawn_testproc', 'spawn_zombie', + 'spawn_children_pair', + # threads + 'ThreadTask' + # test utils + 'unittest', 'skip_on_access_denied', 'skip_on_not_implemented', + 'retry_on_failure', 'TestMemoryLeak', 'PsutilTestCase', + 'process_namespace', 'system_namespace', 'print_sysinfo', + # install utils + 'install_pip', 'install_test_deps', + # fs utils + 'chdir', 'safe_rmpath', 'create_exe', 'decode_path', 'encode_path', + 'get_testfn', + # os + 'get_winver', 'kernel_version', + # sync primitives + 'call_until', 'wait_for_pid', 'wait_for_file', + # network + 'check_net_address', + 'get_free_port', 'bind_socket', 'bind_unix_socket', 'tcp_socketpair', + 'unix_socketpair', 'create_sockets', + # compat + 'reload_module', 'import_module_by_path', + # others + 'warn', 'copyload_shared_lib', 'is_namedtuple', +] + + +# =================================================================== +# --- constants +# =================================================================== + +# --- platforms + +PYPY = '__pypy__' in sys.builtin_module_names +# whether we're running this test suite on a Continuous Integration service +APPVEYOR = 'APPVEYOR' in os.environ +GITHUB_ACTIONS = 'GITHUB_ACTIONS' in os.environ or 'CIBUILDWHEEL' in os.environ +CI_TESTING = APPVEYOR or GITHUB_ACTIONS +# are we a 64 bit process? +IS_64BIT = sys.maxsize > 2 ** 32 + + +@memoize +def macos_version(): + version_str = platform.mac_ver()[0] + version = tuple(map(int, version_str.split(".")[:2])) + if version == (10, 16): + # When built against an older macOS SDK, Python will report + # macOS 10.16 instead of the real version. + version_str = subprocess.check_output( + [ + sys.executable, + "-sS", + "-c", + "import platform; print(platform.mac_ver()[0])", + ], + env={"SYSTEM_VERSION_COMPAT": "0"}, + universal_newlines=True, + ) + version = tuple(map(int, version_str.split(".")[:2])) + return version + + +if MACOS: + MACOS_11PLUS = macos_version() > (10, 15) + MACOS_12PLUS = macos_version() >= (12, 0) +else: + MACOS_11PLUS = False + MACOS_12PLUS = False + + +# --- configurable defaults + +# how many times retry_on_failure() decorator will retry +NO_RETRIES = 10 +# bytes tolerance for system-wide related tests +TOLERANCE_SYS_MEM = 5 * 1024 * 1024 # 5MB +TOLERANCE_DISK_USAGE = 10 * 1024 * 1024 # 10MB +# the timeout used in functions which have to wait +GLOBAL_TIMEOUT = 5 +# be more tolerant if we're on CI in order to avoid false positives +if CI_TESTING: + NO_RETRIES *= 3 + GLOBAL_TIMEOUT *= 3 + TOLERANCE_SYS_MEM *= 4 + TOLERANCE_DISK_USAGE *= 3 + +# --- file names + +# Disambiguate TESTFN for parallel testing. +if os.name == 'java': + # Jython disallows @ in module names + TESTFN_PREFIX = '$psutil-%s-' % os.getpid() +else: + TESTFN_PREFIX = '@psutil-%s-' % os.getpid() +UNICODE_SUFFIX = u("-ƒőő") +# An invalid unicode string. +if PY3: + INVALID_UNICODE_SUFFIX = b"f\xc0\x80".decode('utf8', 'surrogateescape') +else: + INVALID_UNICODE_SUFFIX = "f\xc0\x80" +ASCII_FS = sys.getfilesystemencoding().lower() in ('ascii', 'us-ascii') + +# --- paths + +ROOT_DIR = os.path.realpath( + os.path.join(os.path.dirname(__file__), '..', '..')) +SCRIPTS_DIR = os.path.join(ROOT_DIR, 'scripts') +HERE = os.path.realpath(os.path.dirname(__file__)) + +# --- support + +HAS_CONNECTIONS_UNIX = POSIX and not SUNOS +HAS_CPU_AFFINITY = hasattr(psutil.Process, "cpu_affinity") +HAS_CPU_FREQ = hasattr(psutil, "cpu_freq") +HAS_GETLOADAVG = hasattr(psutil, "getloadavg") +HAS_ENVIRON = hasattr(psutil.Process, "environ") +HAS_IONICE = hasattr(psutil.Process, "ionice") +HAS_MEMORY_MAPS = hasattr(psutil.Process, "memory_maps") +HAS_NET_IO_COUNTERS = hasattr(psutil, "net_io_counters") +HAS_PROC_CPU_NUM = hasattr(psutil.Process, "cpu_num") +HAS_PROC_IO_COUNTERS = hasattr(psutil.Process, "io_counters") +HAS_RLIMIT = hasattr(psutil.Process, "rlimit") +HAS_SENSORS_BATTERY = hasattr(psutil, "sensors_battery") +try: + HAS_BATTERY = HAS_SENSORS_BATTERY and bool(psutil.sensors_battery()) +except Exception: + HAS_BATTERY = False +HAS_SENSORS_FANS = hasattr(psutil, "sensors_fans") +HAS_SENSORS_TEMPERATURES = hasattr(psutil, "sensors_temperatures") +HAS_THREADS = hasattr(psutil.Process, "threads") +SKIP_SYSCONS = (MACOS or AIX) and os.getuid() != 0 + +# --- misc + + +def _get_py_exe(): + def attempt(exe): + try: + subprocess.check_call( + [exe, "-V"], stdout=subprocess.PIPE, stderr=subprocess.PIPE) + except Exception: + return None + else: + return exe + + if GITHUB_ACTIONS: + if PYPY: + return which("pypy3") if PY3 else which("pypy") + elif FREEBSD: + return os.path.realpath(sys.executable) + else: + return which('python') + elif MACOS: + exe = \ + attempt(sys.executable) or \ + attempt(os.path.realpath(sys.executable)) or \ + attempt(which("python%s.%s" % sys.version_info[:2])) or \ + attempt(psutil.Process().exe()) + if not exe: + raise ValueError("can't find python exe real abspath") + return exe + else: + exe = os.path.realpath(sys.executable) + assert os.path.exists(exe), exe + return exe + + +PYTHON_EXE = _get_py_exe() +DEVNULL = open(os.devnull, 'r+') +atexit.register(DEVNULL.close) + +VALID_PROC_STATUSES = [getattr(psutil, x) for x in dir(psutil) + if x.startswith('STATUS_')] +AF_UNIX = getattr(socket, "AF_UNIX", object()) + +_subprocesses_started = set() +_pids_started = set() + + +# =================================================================== +# --- threads +# =================================================================== + + +class ThreadTask(threading.Thread): + """A thread task which does nothing expect staying alive.""" + + def __init__(self): + super().__init__() + self._running = False + self._interval = 0.001 + self._flag = threading.Event() + + def __repr__(self): + name = self.__class__.__name__ + return '<%s running=%s at %#x>' % (name, self._running, id(self)) + + def __enter__(self): + self.start() + return self + + def __exit__(self, *args, **kwargs): + self.stop() + + def start(self): + """Start thread and keep it running until an explicit + stop() request. Polls for shutdown every 'timeout' seconds. + """ + if self._running: + raise ValueError("already started") + threading.Thread.start(self) + self._flag.wait() + + def run(self): + self._running = True + self._flag.set() + while self._running: + time.sleep(self._interval) + + def stop(self): + """Stop thread execution and and waits until it is stopped.""" + if not self._running: + raise ValueError("already stopped") + self._running = False + self.join() + + +# =================================================================== +# --- subprocesses +# =================================================================== + + +def _reap_children_on_err(fun): + @functools.wraps(fun) + def wrapper(*args, **kwargs): + try: + return fun(*args, **kwargs) + except Exception: + reap_children() + raise + return wrapper + + +@_reap_children_on_err +def spawn_testproc(cmd=None, **kwds): + """Creates a python subprocess which does nothing for 60 secs and + return it as a subprocess.Popen instance. + If "cmd" is specified that is used instead of python. + By default stdin and stdout are redirected to /dev/null. + It also attempts to make sure the process is in a reasonably + initialized state. + The process is registered for cleanup on reap_children(). + """ + kwds.setdefault("stdin", DEVNULL) + kwds.setdefault("stdout", DEVNULL) + kwds.setdefault("cwd", os.getcwd()) + kwds.setdefault("env", os.environ) + if WINDOWS: + # Prevents the subprocess to open error dialogs. This will also + # cause stderr to be suppressed, which is suboptimal in order + # to debug broken tests. + CREATE_NO_WINDOW = 0x8000000 + kwds.setdefault("creationflags", CREATE_NO_WINDOW) + if cmd is None: + testfn = get_testfn() + try: + safe_rmpath(testfn) + pyline = "from time import sleep;" \ + "open(r'%s', 'w').close();" \ + "sleep(60);" % testfn + cmd = [PYTHON_EXE, "-c", pyline] + sproc = subprocess.Popen(cmd, **kwds) + _subprocesses_started.add(sproc) + wait_for_file(testfn, delete=True, empty=True) + finally: + safe_rmpath(testfn) + else: + sproc = subprocess.Popen(cmd, **kwds) + _subprocesses_started.add(sproc) + wait_for_pid(sproc.pid) + return sproc + + +@_reap_children_on_err +def spawn_children_pair(): + """Create a subprocess which creates another one as in: + A (us) -> B (child) -> C (grandchild). + Return a (child, grandchild) tuple. + The 2 processes are fully initialized and will live for 60 secs + and are registered for cleanup on reap_children(). + """ + tfile = None + testfn = get_testfn(dir=os.getcwd()) + try: + s = textwrap.dedent("""\ + import subprocess, os, sys, time + s = "import os, time;" + s += "f = open('%s', 'w');" + s += "f.write(str(os.getpid()));" + s += "f.close();" + s += "time.sleep(60);" + p = subprocess.Popen([r'%s', '-c', s]) + p.wait() + """ % (os.path.basename(testfn), PYTHON_EXE)) + # On Windows if we create a subprocess with CREATE_NO_WINDOW flag + # set (which is the default) a "conhost.exe" extra process will be + # spawned as a child. We don't want that. + if WINDOWS: + subp, tfile = pyrun(s, creationflags=0) + else: + subp, tfile = pyrun(s) + child = psutil.Process(subp.pid) + grandchild_pid = int(wait_for_file(testfn, delete=True, empty=False)) + _pids_started.add(grandchild_pid) + grandchild = psutil.Process(grandchild_pid) + return (child, grandchild) + finally: + safe_rmpath(testfn) + if tfile is not None: + safe_rmpath(tfile) + + +def spawn_zombie(): + """Create a zombie process and return a (parent, zombie) process tuple. + In order to kill the zombie parent must be terminate()d first, then + zombie must be wait()ed on. + """ + assert psutil.POSIX + unix_file = get_testfn() + src = textwrap.dedent("""\ + import os, sys, time, socket, contextlib + child_pid = os.fork() + if child_pid > 0: + time.sleep(3000) + else: + # this is the zombie process + s = socket.socket(socket.AF_UNIX) + with contextlib.closing(s): + s.connect('%s') + if sys.version_info < (3, ): + pid = str(os.getpid()) + else: + pid = bytes(str(os.getpid()), 'ascii') + s.sendall(pid) + """ % unix_file) + tfile = None + sock = bind_unix_socket(unix_file) + try: + sock.settimeout(GLOBAL_TIMEOUT) + parent, tfile = pyrun(src) + conn, _ = sock.accept() + try: + select.select([conn.fileno()], [], [], GLOBAL_TIMEOUT) + zpid = int(conn.recv(1024)) + _pids_started.add(zpid) + zombie = psutil.Process(zpid) + call_until(lambda: zombie.status(), "ret == psutil.STATUS_ZOMBIE") + return (parent, zombie) + finally: + conn.close() + finally: + sock.close() + safe_rmpath(unix_file) + if tfile is not None: + safe_rmpath(tfile) + + +@_reap_children_on_err +def pyrun(src, **kwds): + """Run python 'src' code string in a separate interpreter. + Returns a subprocess.Popen instance and the test file where the source + code was written. + """ + kwds.setdefault("stdout", None) + kwds.setdefault("stderr", None) + srcfile = get_testfn() + try: + with open(srcfile, 'wt') as f: + f.write(src) + subp = spawn_testproc([PYTHON_EXE, f.name], **kwds) + wait_for_pid(subp.pid) + return (subp, srcfile) + except Exception: + safe_rmpath(srcfile) + raise + + +@_reap_children_on_err +def sh(cmd, **kwds): + """run cmd in a subprocess and return its output. + raises RuntimeError on error. + """ + # Prevents subprocess to open error dialogs in case of error. + flags = 0x8000000 if WINDOWS else 0 + kwds.setdefault("stdout", subprocess.PIPE) + kwds.setdefault("stderr", subprocess.PIPE) + kwds.setdefault("universal_newlines", True) + kwds.setdefault("creationflags", flags) + if isinstance(cmd, str): + cmd = shlex.split(cmd) + p = subprocess.Popen(cmd, **kwds) + _subprocesses_started.add(p) + if PY3: + stdout, stderr = p.communicate(timeout=GLOBAL_TIMEOUT) + else: + stdout, stderr = p.communicate() + if p.returncode != 0: + raise RuntimeError(stderr) + if stderr: + warn(stderr) + if stdout.endswith('\n'): + stdout = stdout[:-1] + return stdout + + +def terminate(proc_or_pid, sig=signal.SIGTERM, wait_timeout=GLOBAL_TIMEOUT): + """Terminate a process and wait() for it. + Process can be a PID or an instance of psutil.Process(), + subprocess.Popen() or psutil.Popen(). + If it's a subprocess.Popen() or psutil.Popen() instance also closes + its stdin / stdout / stderr fds. + PID is wait()ed even if the process is already gone (kills zombies). + Does nothing if the process does not exist. + Return process exit status. + """ + def wait(proc, timeout): + if isinstance(proc, subprocess.Popen) and not PY3: + proc.wait() + else: + proc.wait(timeout) + if WINDOWS and isinstance(proc, subprocess.Popen): + # Otherwise PID may still hang around. + try: + return psutil.Process(proc.pid).wait(timeout) + except psutil.NoSuchProcess: + pass + + def sendsig(proc, sig): + # XXX: otherwise the build hangs for some reason. + if MACOS and GITHUB_ACTIONS: + sig = signal.SIGKILL + # If the process received SIGSTOP, SIGCONT is necessary first, + # otherwise SIGTERM won't work. + if POSIX and sig != signal.SIGKILL: + proc.send_signal(signal.SIGCONT) + proc.send_signal(sig) + + def term_subprocess_proc(proc, timeout): + try: + sendsig(proc, sig) + except OSError as err: + if WINDOWS and err.winerror == 6: # "invalid handle" + pass + elif err.errno != errno.ESRCH: + raise + return wait(proc, timeout) + + def term_psutil_proc(proc, timeout): + try: + sendsig(proc, sig) + except psutil.NoSuchProcess: + pass + return wait(proc, timeout) + + def term_pid(pid, timeout): + try: + proc = psutil.Process(pid) + except psutil.NoSuchProcess: + # Needed to kill zombies. + if POSIX: + return wait_pid(pid, timeout) + else: + return term_psutil_proc(proc, timeout) + + def flush_popen(proc): + if proc.stdout: + proc.stdout.close() + if proc.stderr: + proc.stderr.close() + # Flushing a BufferedWriter may raise an error. + if proc.stdin: + proc.stdin.close() + + p = proc_or_pid + try: + if isinstance(p, int): + return term_pid(p, wait_timeout) + elif isinstance(p, (psutil.Process, psutil.Popen)): + return term_psutil_proc(p, wait_timeout) + elif isinstance(p, subprocess.Popen): + return term_subprocess_proc(p, wait_timeout) + else: + raise TypeError("wrong type %r" % p) + finally: + if isinstance(p, (subprocess.Popen, psutil.Popen)): + flush_popen(p) + pid = p if isinstance(p, int) else p.pid + assert not psutil.pid_exists(pid), pid + + +def reap_children(recursive=False): + """Terminate and wait() any subprocess started by this test suite + and any children currently running, ensuring that no processes stick + around to hog resources. + If recursive is True it also tries to terminate and wait() + all grandchildren started by this process. + """ + # Get the children here before terminating them, as in case of + # recursive=True we don't want to lose the intermediate reference + # pointing to the grandchildren. + children = psutil.Process().children(recursive=recursive) + + # Terminate subprocess.Popen. + while _subprocesses_started: + subp = _subprocesses_started.pop() + terminate(subp) + + # Collect started pids. + while _pids_started: + pid = _pids_started.pop() + terminate(pid) + + # Terminate children. + if children: + for p in children: + terminate(p, wait_timeout=None) + gone, alive = psutil.wait_procs(children, timeout=GLOBAL_TIMEOUT) + for p in alive: + warn("couldn't terminate process %r; attempting kill()" % p) + terminate(p, sig=signal.SIGKILL) + + +# =================================================================== +# --- OS +# =================================================================== + + +def kernel_version(): + """Return a tuple such as (2, 6, 36).""" + if not POSIX: + raise NotImplementedError("not POSIX") + s = "" + uname = os.uname()[2] + for c in uname: + if c.isdigit() or c == '.': + s += c + else: + break + if not s: + raise ValueError("can't parse %r" % uname) + minor = 0 + micro = 0 + nums = s.split('.') + major = int(nums[0]) + if len(nums) >= 2: + minor = int(nums[1]) + if len(nums) >= 3: + micro = int(nums[2]) + return (major, minor, micro) + + +def get_winver(): + if not WINDOWS: + raise NotImplementedError("not WINDOWS") + wv = sys.getwindowsversion() + if hasattr(wv, 'service_pack_major'): # python >= 2.7 + sp = wv.service_pack_major or 0 + else: + r = re.search(r"\s\d$", wv[4]) + if r: + sp = int(r.group(0)) + else: + sp = 0 + return (wv[0], wv[1], sp) + + +# =================================================================== +# --- sync primitives +# =================================================================== + + +class retry(object): + """A retry decorator.""" + + def __init__(self, + exception=Exception, + timeout=None, + retries=None, + interval=0.001, + logfun=None, + ): + if timeout and retries: + raise ValueError("timeout and retries args are mutually exclusive") + self.exception = exception + self.timeout = timeout + self.retries = retries + self.interval = interval + self.logfun = logfun + + def __iter__(self): + if self.timeout: + stop_at = time.time() + self.timeout + while time.time() < stop_at: + yield + elif self.retries: + for _ in range(self.retries): + yield + else: + while True: + yield + + def sleep(self): + if self.interval is not None: + time.sleep(self.interval) + + def __call__(self, fun): + @functools.wraps(fun) + def wrapper(*args, **kwargs): + exc = None + for _ in self: + try: + return fun(*args, **kwargs) + except self.exception as _: # NOQA + exc = _ + if self.logfun is not None: + self.logfun(exc) + self.sleep() + continue + if PY3: + raise exc + else: + raise + + # This way the user of the decorated function can change config + # parameters. + wrapper.decorator = self + return wrapper + + +@retry(exception=psutil.NoSuchProcess, logfun=None, timeout=GLOBAL_TIMEOUT, + interval=0.001) +def wait_for_pid(pid): + """Wait for pid to show up in the process list then return. + Used in the test suite to give time the sub process to initialize. + """ + psutil.Process(pid) + if WINDOWS: + # give it some more time to allow better initialization + time.sleep(0.01) + + +@retry(exception=(FileNotFoundError, AssertionError), logfun=None, + timeout=GLOBAL_TIMEOUT, interval=0.001) +def wait_for_file(fname, delete=True, empty=False): + """Wait for a file to be written on disk with some content.""" + with open(fname, "rb") as f: + data = f.read() + if not empty: + assert data + if delete: + safe_rmpath(fname) + return data + + +@retry(exception=AssertionError, logfun=None, timeout=GLOBAL_TIMEOUT, + interval=0.001) +def call_until(fun, expr): + """Keep calling function for timeout secs and exit if eval() + expression is True. + """ + ret = fun() + assert eval(expr) + return ret + + +# =================================================================== +# --- fs +# =================================================================== + + +def safe_rmpath(path): + """Convenience function for removing temporary test files or dirs.""" + def retry_fun(fun): + # On Windows it could happen that the file or directory has + # open handles or references preventing the delete operation + # to succeed immediately, so we retry for a while. See: + # https://bugs.python.org/issue33240 + stop_at = time.time() + GLOBAL_TIMEOUT + while time.time() < stop_at: + try: + return fun() + except FileNotFoundError: + pass + except WindowsError as _: + err = _ + warn("ignoring %s" % (str(err))) + time.sleep(0.01) + raise err + + try: + st = os.stat(path) + if stat.S_ISDIR(st.st_mode): + fun = functools.partial(shutil.rmtree, path) + else: + fun = functools.partial(os.remove, path) + if POSIX: + fun() + else: + retry_fun(fun) + except FileNotFoundError: + pass + + +def safe_mkdir(dir): + """Convenience function for creating a directory.""" + try: + os.mkdir(dir) + except FileExistsError: + pass + + +@contextlib.contextmanager +def chdir(dirname): + """Context manager which temporarily changes the current directory.""" + curdir = os.getcwd() + try: + os.chdir(dirname) + yield + finally: + os.chdir(curdir) + + +def create_exe(outpath, c_code=None): + """Creates an executable file in the given location.""" + assert not os.path.exists(outpath), outpath + if c_code: + if not which("gcc"): + raise ValueError("gcc is not installed") + if isinstance(c_code, bool): # c_code is True + c_code = textwrap.dedent( + """ + #include <unistd.h> + int main() { + pause(); + return 1; + } + """) + assert isinstance(c_code, str), c_code + with open(get_testfn(suffix='.c'), 'wt') as f: + f.write(c_code) + try: + subprocess.check_call(["gcc", f.name, "-o", outpath]) + finally: + safe_rmpath(f.name) + else: + # copy python executable + shutil.copyfile(PYTHON_EXE, outpath) + if POSIX: + st = os.stat(outpath) + os.chmod(outpath, st.st_mode | stat.S_IEXEC) + + +def get_testfn(suffix="", dir=None): + """Return an absolute pathname of a file or dir that did not + exist at the time this call is made. Also schedule it for safe + deletion at interpreter exit. It's technically racy but probably + not really due to the time variant. + """ + while True: + name = tempfile.mktemp(prefix=TESTFN_PREFIX, suffix=suffix, dir=dir) + if not os.path.exists(name): # also include dirs + return os.path.realpath(name) # needed for OSX + + +# =================================================================== +# --- testing +# =================================================================== + + +class TestCase(unittest.TestCase): + + # Print a full path representation of the single unit tests + # being run. + def __str__(self): + fqmod = self.__class__.__module__ + if not fqmod.startswith('psutil.'): + fqmod = 'psutil.tests.' + fqmod + return "%s.%s.%s" % ( + fqmod, self.__class__.__name__, self._testMethodName) + + # assertRaisesRegexp renamed to assertRaisesRegex in 3.3; + # add support for the new name. + if not hasattr(unittest.TestCase, 'assertRaisesRegex'): + assertRaisesRegex = unittest.TestCase.assertRaisesRegexp + + # ...otherwise multiprocessing.Pool complains + if not PY3: + def runTest(self): + pass + + @contextlib.contextmanager + def subTest(self, *args, **kw): + # fake it for python 2.7 + yield + + +# monkey patch default unittest.TestCase +unittest.TestCase = TestCase + + +class PsutilTestCase(TestCase): + """Test class providing auto-cleanup wrappers on top of process + test utilities. + """ + + def get_testfn(self, suffix="", dir=None): + fname = get_testfn(suffix=suffix, dir=dir) + self.addCleanup(safe_rmpath, fname) + return fname + + def spawn_testproc(self, *args, **kwds): + sproc = spawn_testproc(*args, **kwds) + self.addCleanup(terminate, sproc) + return sproc + + def spawn_children_pair(self): + child1, child2 = spawn_children_pair() + self.addCleanup(terminate, child2) + self.addCleanup(terminate, child1) # executed first + return (child1, child2) + + def spawn_zombie(self): + parent, zombie = spawn_zombie() + self.addCleanup(terminate, zombie) + self.addCleanup(terminate, parent) # executed first + return (parent, zombie) + + def pyrun(self, *args, **kwds): + sproc, srcfile = pyrun(*args, **kwds) + self.addCleanup(safe_rmpath, srcfile) + self.addCleanup(terminate, sproc) # executed first + return sproc + + def assertProcessGone(self, proc): + self.assertRaises(psutil.NoSuchProcess, psutil.Process, proc.pid) + if isinstance(proc, (psutil.Process, psutil.Popen)): + assert not proc.is_running() + try: + status = proc.status() + except psutil.NoSuchProcess: + pass + else: + raise AssertionError("Process.status() didn't raise exception " + "(status=%s)" % status) + proc.wait(timeout=0) # assert not raise TimeoutExpired + assert not psutil.pid_exists(proc.pid), proc.pid + self.assertNotIn(proc.pid, psutil.pids()) + + +@unittest.skipIf(PYPY, "unreliable on PYPY") +class TestMemoryLeak(PsutilTestCase): + """Test framework class for detecting function memory leaks, + typically functions implemented in C which forgot to free() memory + from the heap. It does so by checking whether the process memory + usage increased before and after calling the function many times. + + Note that this is hard (probably impossible) to do reliably, due + to how the OS handles memory, the GC and so on (memory can even + decrease!). In order to avoid false positives, in case of failure + (mem > 0) we retry the test for up to 5 times, increasing call + repetitions each time. If the memory keeps increasing then it's a + failure. + + If available (Linux, OSX, Windows), USS memory is used for comparison, + since it's supposed to be more precise, see: + https://gmpy.dev/blog/2016/real-process-memory-and-environ-in-python + If not, RSS memory is used. mallinfo() on Linux and _heapwalk() on + Windows may give even more precision, but at the moment are not + implemented. + + PyPy appears to be completely unstable for this framework, probably + because of its JIT, so tests on PYPY are skipped. + + Usage: + + class TestLeaks(psutil.tests.TestMemoryLeak): + + def test_fun(self): + self.execute(some_function) + """ + # Configurable class attrs. + times = 200 + warmup_times = 10 + tolerance = 0 # memory + retries = 10 if CI_TESTING else 5 + verbose = True + _thisproc = psutil.Process() + _psutil_debug_orig = bool(os.getenv('PSUTIL_DEBUG', 0)) + + @classmethod + def setUpClass(cls): + psutil._set_debug(False) # avoid spamming to stderr + + @classmethod + def tearDownClass(cls): + psutil._set_debug(cls._psutil_debug_orig) + + def _get_mem(self): + # USS is the closest thing we have to "real" memory usage and it + # should be less likely to produce false positives. + mem = self._thisproc.memory_full_info() + return getattr(mem, "uss", mem.rss) + + def _get_num_fds(self): + if POSIX: + return self._thisproc.num_fds() + else: + return self._thisproc.num_handles() + + def _log(self, msg): + if self.verbose: + print_color(msg, color="yellow", file=sys.stderr) + + def _check_fds(self, fun): + """Makes sure num_fds() (POSIX) or num_handles() (Windows) does + not increase after calling a function. Used to discover forgotten + close(2) and CloseHandle syscalls. + """ + before = self._get_num_fds() + self.call(fun) + after = self._get_num_fds() + diff = after - before + if diff < 0: + raise self.fail("negative diff %r (gc probably collected a " + "resource from a previous test)" % diff) + if diff > 0: + type_ = "fd" if POSIX else "handle" + if diff > 1: + type_ += "s" + msg = "%s unclosed %s after calling %r" % (diff, type_, fun) + raise self.fail(msg) + + def _call_ntimes(self, fun, times): + """Get 2 distinct memory samples, before and after having + called fun repeatedly, and return the memory difference. + """ + gc.collect(generation=1) + mem1 = self._get_mem() + for x in range(times): + ret = self.call(fun) + del x, ret + gc.collect(generation=1) + mem2 = self._get_mem() + self.assertEqual(gc.garbage, []) + diff = mem2 - mem1 # can also be negative + return diff + + def _check_mem(self, fun, times, warmup_times, retries, tolerance): + messages = [] + prev_mem = 0 + increase = times + for idx in range(1, retries + 1): + mem = self._call_ntimes(fun, times) + msg = "Run #%s: extra-mem=%s, per-call=%s, calls=%s" % ( + idx, bytes2human(mem), bytes2human(mem / times), times) + messages.append(msg) + success = mem <= tolerance or mem <= prev_mem + if success: + if idx > 1: + self._log(msg) + return + else: + if idx == 1: + print() # NOQA + self._log(msg) + times += increase + prev_mem = mem + raise self.fail(". ".join(messages)) + + # --- + + def call(self, fun): + return fun() + + def execute(self, fun, times=None, warmup_times=None, retries=None, + tolerance=None): + """Test a callable.""" + times = times if times is not None else self.times + warmup_times = warmup_times if warmup_times is not None \ + else self.warmup_times + retries = retries if retries is not None else self.retries + tolerance = tolerance if tolerance is not None else self.tolerance + try: + assert times >= 1, "times must be >= 1" + assert warmup_times >= 0, "warmup_times must be >= 0" + assert retries >= 0, "retries must be >= 0" + assert tolerance >= 0, "tolerance must be >= 0" + except AssertionError as err: + raise ValueError(str(err)) + + self._call_ntimes(fun, warmup_times) # warm up + self._check_fds(fun) + self._check_mem(fun, times=times, warmup_times=warmup_times, + retries=retries, tolerance=tolerance) + + def execute_w_exc(self, exc, fun, **kwargs): + """Convenience method to test a callable while making sure it + raises an exception on every call. + """ + def call(): + self.assertRaises(exc, fun) + + self.execute(call, **kwargs) + + +def print_sysinfo(): + import collections + import datetime + import getpass + import locale + import platform + import pprint + try: + import pip + except ImportError: + pip = None + try: + import wheel + except ImportError: + wheel = None + + info = collections.OrderedDict() + + # OS + if psutil.LINUX and which('lsb_release'): + info['OS'] = sh('lsb_release -d -s') + elif psutil.OSX: + info['OS'] = 'Darwin %s' % platform.mac_ver()[0] + elif psutil.WINDOWS: + info['OS'] = "Windows " + ' '.join( + map(str, platform.win32_ver())) + if hasattr(platform, 'win32_edition'): + info['OS'] += ", " + platform.win32_edition() + else: + info['OS'] = "%s %s" % (platform.system(), platform.version()) + info['arch'] = ', '.join( + list(platform.architecture()) + [platform.machine()]) + if psutil.POSIX: + info['kernel'] = platform.uname()[2] + + # python + info['python'] = ', '.join([ + platform.python_implementation(), + platform.python_version(), + platform.python_compiler()]) + info['pip'] = getattr(pip, '__version__', 'not installed') + if wheel is not None: + info['pip'] += " (wheel=%s)" % wheel.__version__ + + # UNIX + if psutil.POSIX: + if which('gcc'): + out = sh(['gcc', '--version']) + info['gcc'] = str(out).split('\n')[0] + else: + info['gcc'] = 'not installed' + s = platform.libc_ver()[1] + if s: + info['glibc'] = s + + # system + info['fs-encoding'] = sys.getfilesystemencoding() + lang = locale.getlocale() + info['lang'] = '%s, %s' % (lang[0], lang[1]) + info['boot-time'] = datetime.datetime.fromtimestamp( + psutil.boot_time()).strftime("%Y-%m-%d %H:%M:%S") + info['time'] = datetime.datetime.now().strftime("%Y-%m-%d %H:%M:%S") + info['user'] = getpass.getuser() + info['home'] = os.path.expanduser("~") + info['cwd'] = os.getcwd() + info['pyexe'] = PYTHON_EXE + info['hostname'] = platform.node() + info['PID'] = os.getpid() + + # metrics + info['cpus'] = psutil.cpu_count() + info['loadavg'] = "%.1f%%, %.1f%%, %.1f%%" % ( + tuple([x / psutil.cpu_count() * 100 for x in psutil.getloadavg()])) + mem = psutil.virtual_memory() + info['memory'] = "%s%%, used=%s, total=%s" % ( + int(mem.percent), bytes2human(mem.used), bytes2human(mem.total)) + swap = psutil.swap_memory() + info['swap'] = "%s%%, used=%s, total=%s" % ( + int(swap.percent), bytes2human(swap.used), bytes2human(swap.total)) + info['pids'] = len(psutil.pids()) + pinfo = psutil.Process().as_dict() + pinfo.pop('memory_maps', None) + info['proc'] = pprint.pformat(pinfo) + + print("=" * 70, file=sys.stderr) # NOQA + for k, v in info.items(): + print("%-17s %s" % (k + ':', v), file=sys.stderr) # NOQA + print("=" * 70, file=sys.stderr) # NOQA + sys.stdout.flush() + + +def _get_eligible_cpu(): + p = psutil.Process() + if hasattr(p, "cpu_num"): + return p.cpu_num() + elif hasattr(p, "cpu_affinity"): + return random.choice(p.cpu_affinity()) + return 0 + + +class process_namespace: + """A container that lists all Process class method names + some + reasonable parameters to be called with. Utility methods (parent(), + children(), ...) are excluded. + + >>> ns = process_namespace(psutil.Process()) + >>> for fun, name in ns.iter(ns.getters): + ... fun() + """ + utils = [ + ('cpu_percent', (), {}), + ('memory_percent', (), {}), + ] + + ignored = [ + ('as_dict', (), {}), + ('children', (), {'recursive': True}), + ('is_running', (), {}), + ('memory_info_ex', (), {}), + ('oneshot', (), {}), + ('parent', (), {}), + ('parents', (), {}), + ('pid', (), {}), + ('wait', (0, ), {}), + ] + + getters = [ + ('cmdline', (), {}), + ('connections', (), {'kind': 'all'}), + ('cpu_times', (), {}), + ('create_time', (), {}), + ('cwd', (), {}), + ('exe', (), {}), + ('memory_full_info', (), {}), + ('memory_info', (), {}), + ('name', (), {}), + ('nice', (), {}), + ('num_ctx_switches', (), {}), + ('num_threads', (), {}), + ('open_files', (), {}), + ('ppid', (), {}), + ('status', (), {}), + ('threads', (), {}), + ('username', (), {}), + ] + if POSIX: + getters += [('uids', (), {})] + getters += [('gids', (), {})] + getters += [('terminal', (), {})] + getters += [('num_fds', (), {})] + if HAS_PROC_IO_COUNTERS: + getters += [('io_counters', (), {})] + if HAS_IONICE: + getters += [('ionice', (), {})] + if HAS_RLIMIT: + getters += [('rlimit', (psutil.RLIMIT_NOFILE, ), {})] + if HAS_CPU_AFFINITY: + getters += [('cpu_affinity', (), {})] + if HAS_PROC_CPU_NUM: + getters += [('cpu_num', (), {})] + if HAS_ENVIRON: + getters += [('environ', (), {})] + if WINDOWS: + getters += [('num_handles', (), {})] + if HAS_MEMORY_MAPS: + getters += [('memory_maps', (), {'grouped': False})] + + setters = [] + if POSIX: + setters += [('nice', (0, ), {})] + else: + setters += [('nice', (psutil.NORMAL_PRIORITY_CLASS, ), {})] + if HAS_RLIMIT: + setters += [('rlimit', (psutil.RLIMIT_NOFILE, (1024, 4096)), {})] + if HAS_IONICE: + if LINUX: + setters += [('ionice', (psutil.IOPRIO_CLASS_NONE, 0), {})] + else: + setters += [('ionice', (psutil.IOPRIO_NORMAL, ), {})] + if HAS_CPU_AFFINITY: + setters += [('cpu_affinity', ([_get_eligible_cpu()], ), {})] + + killers = [ + ('send_signal', (signal.SIGTERM, ), {}), + ('suspend', (), {}), + ('resume', (), {}), + ('terminate', (), {}), + ('kill', (), {}), + ] + if WINDOWS: + killers += [('send_signal', (signal.CTRL_C_EVENT, ), {})] + killers += [('send_signal', (signal.CTRL_BREAK_EVENT, ), {})] + + all = utils + getters + setters + killers + + def __init__(self, proc): + self._proc = proc + + def iter(self, ls, clear_cache=True): + """Given a list of tuples yields a set of (fun, fun_name) tuples + in random order. + """ + ls = list(ls) + random.shuffle(ls) + for fun_name, args, kwds in ls: + if clear_cache: + self.clear_cache() + fun = getattr(self._proc, fun_name) + fun = functools.partial(fun, *args, **kwds) + yield (fun, fun_name) + + def clear_cache(self): + """Clear the cache of a Process instance.""" + self._proc._init(self._proc.pid, _ignore_nsp=True) + + @classmethod + def test_class_coverage(cls, test_class, ls): + """Given a TestCase instance and a list of tuples checks that + the class defines the required test method names. + """ + for fun_name, _, _ in ls: + meth_name = 'test_' + fun_name + if not hasattr(test_class, meth_name): + msg = "%r class should define a '%s' method" % ( + test_class.__class__.__name__, meth_name) + raise AttributeError(msg) + + @classmethod + def test(cls): + this = set([x[0] for x in cls.all]) + ignored = set([x[0] for x in cls.ignored]) + klass = set([x for x in dir(psutil.Process) if x[0] != '_']) + leftout = (this | ignored) ^ klass + if leftout: + raise ValueError("uncovered Process class names: %r" % leftout) + + +class system_namespace: + """A container that lists all the module-level, system-related APIs. + Utilities such as cpu_percent() are excluded. Usage: + + >>> ns = system_namespace + >>> for fun, name in ns.iter(ns.getters): + ... fun() + """ + getters = [ + ('boot_time', (), {}), + ('cpu_count', (), {'logical': False}), + ('cpu_count', (), {'logical': True}), + ('cpu_stats', (), {}), + ('cpu_times', (), {'percpu': False}), + ('cpu_times', (), {'percpu': True}), + ('disk_io_counters', (), {'perdisk': True}), + ('disk_partitions', (), {'all': True}), + ('disk_usage', (os.getcwd(), ), {}), + ('net_connections', (), {'kind': 'all'}), + ('net_if_addrs', (), {}), + ('net_if_stats', (), {}), + ('net_io_counters', (), {'pernic': True}), + ('pid_exists', (os.getpid(), ), {}), + ('pids', (), {}), + ('swap_memory', (), {}), + ('users', (), {}), + ('virtual_memory', (), {}), + ] + if HAS_CPU_FREQ: + getters += [('cpu_freq', (), {'percpu': True})] + if HAS_GETLOADAVG: + getters += [('getloadavg', (), {})] + if HAS_SENSORS_TEMPERATURES: + getters += [('sensors_temperatures', (), {})] + if HAS_SENSORS_FANS: + getters += [('sensors_fans', (), {})] + if HAS_SENSORS_BATTERY: + getters += [('sensors_battery', (), {})] + if WINDOWS: + getters += [('win_service_iter', (), {})] + getters += [('win_service_get', ('alg', ), {})] + + ignored = [ + ('process_iter', (), {}), + ('wait_procs', ([psutil.Process()], ), {}), + ('cpu_percent', (), {}), + ('cpu_times_percent', (), {}), + ] + + all = getters + + @staticmethod + def iter(ls): + """Given a list of tuples yields a set of (fun, fun_name) tuples + in random order. + """ + ls = list(ls) + random.shuffle(ls) + for fun_name, args, kwds in ls: + fun = getattr(psutil, fun_name) + fun = functools.partial(fun, *args, **kwds) + yield (fun, fun_name) + + test_class_coverage = process_namespace.test_class_coverage + + +def serialrun(klass): + """A decorator to mark a TestCase class. When running parallel tests, + class' unit tests will be run serially (1 process). + """ + # assert issubclass(klass, unittest.TestCase), klass + assert inspect.isclass(klass), klass + klass._serialrun = True + return klass + + +def retry_on_failure(retries=NO_RETRIES): + """Decorator which runs a test function and retries N times before + actually failing. + """ + def logfun(exc): + print("%r, retrying" % exc, file=sys.stderr) # NOQA + + return retry(exception=AssertionError, timeout=None, retries=retries, + logfun=logfun) + + +def skip_on_access_denied(only_if=None): + """Decorator to Ignore AccessDenied exceptions.""" + def decorator(fun): + @functools.wraps(fun) + def wrapper(*args, **kwargs): + try: + return fun(*args, **kwargs) + except psutil.AccessDenied: + if only_if is not None: + if not only_if: + raise + raise unittest.SkipTest("raises AccessDenied") + return wrapper + return decorator + + +def skip_on_not_implemented(only_if=None): + """Decorator to Ignore NotImplementedError exceptions.""" + def decorator(fun): + @functools.wraps(fun) + def wrapper(*args, **kwargs): + try: + return fun(*args, **kwargs) + except NotImplementedError: + if only_if is not None: + if not only_if: + raise + msg = "%r was skipped because it raised NotImplementedError" \ + % fun.__name__ + raise unittest.SkipTest(msg) + return wrapper + return decorator + + +# =================================================================== +# --- network +# =================================================================== + + +# XXX: no longer used +def get_free_port(host='127.0.0.1'): + """Return an unused TCP port. Subject to race conditions.""" + with contextlib.closing(socket.socket()) as sock: + sock.bind((host, 0)) + return sock.getsockname()[1] + + +def bind_socket(family=AF_INET, type=SOCK_STREAM, addr=None): + """Binds a generic socket.""" + if addr is None and family in (AF_INET, AF_INET6): + addr = ("", 0) + sock = socket.socket(family, type) + try: + if os.name not in ('nt', 'cygwin'): + sock.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1) + sock.bind(addr) + if type == socket.SOCK_STREAM: + sock.listen(5) + return sock + except Exception: + sock.close() + raise + + +def bind_unix_socket(name, type=socket.SOCK_STREAM): + """Bind a UNIX socket.""" + assert psutil.POSIX + assert not os.path.exists(name), name + sock = socket.socket(socket.AF_UNIX, type) + try: + sock.bind(name) + if type == socket.SOCK_STREAM: + sock.listen(5) + except Exception: + sock.close() + raise + return sock + + +def tcp_socketpair(family, addr=("", 0)): + """Build a pair of TCP sockets connected to each other. + Return a (server, client) tuple. + """ + with contextlib.closing(socket.socket(family, SOCK_STREAM)) as ll: + ll.bind(addr) + ll.listen(5) + addr = ll.getsockname() + c = socket.socket(family, SOCK_STREAM) + try: + c.connect(addr) + caddr = c.getsockname() + while True: + a, addr = ll.accept() + # check that we've got the correct client + if addr == caddr: + return (a, c) + a.close() + except OSError: + c.close() + raise + + +def unix_socketpair(name): + """Build a pair of UNIX sockets connected to each other through + the same UNIX file name. + Return a (server, client) tuple. + """ + assert psutil.POSIX + server = client = None + try: + server = bind_unix_socket(name, type=socket.SOCK_STREAM) + server.setblocking(0) + client = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) + client.setblocking(0) + client.connect(name) + # new = server.accept() + except Exception: + if server is not None: + server.close() + if client is not None: + client.close() + raise + return (server, client) + + +@contextlib.contextmanager +def create_sockets(): + """Open as many socket families / types as possible.""" + socks = [] + fname1 = fname2 = None + try: + socks.append(bind_socket(socket.AF_INET, socket.SOCK_STREAM)) + socks.append(bind_socket(socket.AF_INET, socket.SOCK_DGRAM)) + if supports_ipv6(): + socks.append(bind_socket(socket.AF_INET6, socket.SOCK_STREAM)) + socks.append(bind_socket(socket.AF_INET6, socket.SOCK_DGRAM)) + if POSIX and HAS_CONNECTIONS_UNIX: + fname1 = get_testfn() + fname2 = get_testfn() + s1, s2 = unix_socketpair(fname1) + s3 = bind_unix_socket(fname2, type=socket.SOCK_DGRAM) + for s in (s1, s2, s3): + socks.append(s) + yield socks + finally: + for s in socks: + s.close() + for fname in (fname1, fname2): + if fname is not None: + safe_rmpath(fname) + + +def check_net_address(addr, family): + """Check a net address validity. Supported families are IPv4, + IPv6 and MAC addresses. + """ + import ipaddress # python >= 3.3 / requires "pip install ipaddress" + if enum and PY3 and not PYPY: + assert isinstance(family, enum.IntEnum), family + if family == socket.AF_INET: + octs = [int(x) for x in addr.split('.')] + assert len(octs) == 4, addr + for num in octs: + assert 0 <= num <= 255, addr + if not PY3: + addr = unicode(addr) + ipaddress.IPv4Address(addr) + elif family == socket.AF_INET6: + assert isinstance(addr, str), addr + if not PY3: + addr = unicode(addr) + ipaddress.IPv6Address(addr) + elif family == psutil.AF_LINK: + assert re.match(r'([a-fA-F0-9]{2}[:|\-]?){6}', addr) is not None, addr + else: + raise ValueError("unknown family %r", family) + + +def check_connection_ntuple(conn): + """Check validity of a connection namedtuple.""" + def check_ntuple(conn): + has_pid = len(conn) == 7 + assert len(conn) in (6, 7), len(conn) + assert conn[0] == conn.fd, conn.fd + assert conn[1] == conn.family, conn.family + assert conn[2] == conn.type, conn.type + assert conn[3] == conn.laddr, conn.laddr + assert conn[4] == conn.raddr, conn.raddr + assert conn[5] == conn.status, conn.status + if has_pid: + assert conn[6] == conn.pid, conn.pid + + def check_family(conn): + assert conn.family in (AF_INET, AF_INET6, AF_UNIX), conn.family + if enum is not None: + assert isinstance(conn.family, enum.IntEnum), conn + else: + assert isinstance(conn.family, int), conn + if conn.family == AF_INET: + # actually try to bind the local socket; ignore IPv6 + # sockets as their address might be represented as + # an IPv4-mapped-address (e.g. "::127.0.0.1") + # and that's rejected by bind() + s = socket.socket(conn.family, conn.type) + with contextlib.closing(s): + try: + s.bind((conn.laddr[0], 0)) + except socket.error as err: + if err.errno != errno.EADDRNOTAVAIL: + raise + elif conn.family == AF_UNIX: + assert conn.status == psutil.CONN_NONE, conn.status + + def check_type(conn): + # SOCK_SEQPACKET may happen in case of AF_UNIX socks + SOCK_SEQPACKET = getattr(socket, "SOCK_SEQPACKET", object()) + assert conn.type in (socket.SOCK_STREAM, socket.SOCK_DGRAM, + SOCK_SEQPACKET), conn.type + if enum is not None: + assert isinstance(conn.type, enum.IntEnum), conn + else: + assert isinstance(conn.type, int), conn + if conn.type == socket.SOCK_DGRAM: + assert conn.status == psutil.CONN_NONE, conn.status + + def check_addrs(conn): + # check IP address and port sanity + for addr in (conn.laddr, conn.raddr): + if conn.family in (AF_INET, AF_INET6): + assert isinstance(addr, tuple), type(addr) + if not addr: + continue + assert isinstance(addr.port, int), type(addr.port) + assert 0 <= addr.port <= 65535, addr.port + check_net_address(addr.ip, conn.family) + elif conn.family == AF_UNIX: + assert isinstance(addr, str), type(addr) + + def check_status(conn): + assert isinstance(conn.status, str), conn.status + valids = [getattr(psutil, x) for x in dir(psutil) + if x.startswith('CONN_')] + assert conn.status in valids, conn.status + if conn.family in (AF_INET, AF_INET6) and conn.type == SOCK_STREAM: + assert conn.status != psutil.CONN_NONE, conn.status + else: + assert conn.status == psutil.CONN_NONE, conn.status + + check_ntuple(conn) + check_family(conn) + check_type(conn) + check_addrs(conn) + check_status(conn) + + +# =================================================================== +# --- compatibility +# =================================================================== + + +def reload_module(module): + """Backport of importlib.reload of Python 3.3+.""" + try: + import importlib + if not hasattr(importlib, 'reload'): # python <=3.3 + raise ImportError + except ImportError: + import imp + return imp.reload(module) + else: + return importlib.reload(module) + + +def import_module_by_path(path): + name = os.path.splitext(os.path.basename(path))[0] + if sys.version_info[0] == 2: + import imp + return imp.load_source(name, path) + elif sys.version_info[:2] <= (3, 4): + from importlib.machinery import SourceFileLoader + return SourceFileLoader(name, path).load_module() + else: + import importlib.util + spec = importlib.util.spec_from_file_location(name, path) + mod = importlib.util.module_from_spec(spec) + spec.loader.exec_module(mod) + return mod + + +# =================================================================== +# --- others +# =================================================================== + + +def warn(msg): + """Raise a warning msg.""" + warnings.warn(msg, UserWarning) + + +def is_namedtuple(x): + """Check if object is an instance of namedtuple.""" + t = type(x) + b = t.__bases__ + if len(b) != 1 or b[0] != tuple: + return False + f = getattr(t, '_fields', None) + if not isinstance(f, tuple): + return False + return all(type(n) == str for n in f) + + +if POSIX: + @contextlib.contextmanager + def copyload_shared_lib(suffix=""): + """Ctx manager which picks up a random shared CO lib used + by this process, copies it in another location and loads it + in memory via ctypes. Return the new absolutized path. + """ + exe = 'pypy' if PYPY else 'python' + ext = ".so" + dst = get_testfn(suffix=suffix + ext) + libs = [x.path for x in psutil.Process().memory_maps() if + os.path.splitext(x.path)[1] == ext and + exe in x.path.lower()] + src = random.choice(libs) + shutil.copyfile(src, dst) + try: + ctypes.CDLL(dst) + yield dst + finally: + safe_rmpath(dst) +else: + @contextlib.contextmanager + def copyload_shared_lib(suffix=""): + """Ctx manager which picks up a random shared DLL lib used + by this process, copies it in another location and loads it + in memory via ctypes. + Return the new absolutized, normcased path. + """ + from ctypes import WinError + from ctypes import wintypes + ext = ".dll" + dst = get_testfn(suffix=suffix + ext) + libs = [x.path for x in psutil.Process().memory_maps() if + x.path.lower().endswith(ext) and + 'python' in os.path.basename(x.path).lower() and + 'wow64' not in x.path.lower()] + if PYPY and not libs: + libs = [x.path for x in psutil.Process().memory_maps() if + 'pypy' in os.path.basename(x.path).lower()] + src = random.choice(libs) + shutil.copyfile(src, dst) + cfile = None + try: + cfile = ctypes.WinDLL(dst) + yield dst + finally: + # Work around OverflowError: + # - https://ci.appveyor.com/project/giampaolo/psutil/build/1207/ + # job/o53330pbnri9bcw7 + # - http://bugs.python.org/issue30286 + # - http://stackoverflow.com/questions/23522055 + if cfile is not None: + FreeLibrary = ctypes.windll.kernel32.FreeLibrary + FreeLibrary.argtypes = [wintypes.HMODULE] + ret = FreeLibrary(cfile._handle) + if ret == 0: + WinError() + safe_rmpath(dst) + + +# =================================================================== +# --- Exit funs (first is executed last) +# =================================================================== + + +# this is executed first +@atexit.register +def cleanup_test_procs(): + reap_children(recursive=True) + + +# atexit module does not execute exit functions in case of SIGTERM, which +# gets sent to test subprocesses, which is a problem if they import this +# module. With this it will. See: +# https://gmpy.dev/blog/2016/how-to-always-execute-exit-functions-in-python +if POSIX: + signal.signal(signal.SIGTERM, lambda sig, frame: sys.exit(sig)) diff --git a/lib/psutil/tests/__main__.py b/lib/psutil/tests/__main__.py new file mode 100644 index 0000000..e677352 --- /dev/null +++ b/lib/psutil/tests/__main__.py @@ -0,0 +1,15 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Run unit tests. This is invoked by: +$ python -m psutil.tests +""" + +from .runner import main + + +main() diff --git a/lib/psutil/tests/runner.py b/lib/psutil/tests/runner.py new file mode 100644 index 0000000..2e6f83e --- /dev/null +++ b/lib/psutil/tests/runner.py @@ -0,0 +1,350 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Unit test runner, providing new features on top of unittest module: +- colourized output +- parallel run (UNIX only) +- print failures/tracebacks on CTRL+C +- re-run failed tests only (make test-failed) + +Invocation examples: +- make test +- make test-failed + +Parallel: +- make test-parallel +- make test-process ARGS=--parallel +""" + +from __future__ import print_function + +import atexit +import optparse +import os +import sys +import textwrap +import time +import unittest + + +try: + import ctypes +except ImportError: + ctypes = None + +try: + import concurrencytest # pip install concurrencytest +except ImportError: + concurrencytest = None + +import psutil +from psutil._common import hilite +from psutil._common import print_color +from psutil._common import term_supports_colors +from psutil._compat import super +from psutil.tests import CI_TESTING +from psutil.tests import import_module_by_path +from psutil.tests import print_sysinfo +from psutil.tests import reap_children +from psutil.tests import safe_rmpath + + +VERBOSITY = 2 +FAILED_TESTS_FNAME = '.failed-tests.txt' +NWORKERS = psutil.cpu_count() or 1 +USE_COLORS = not CI_TESTING and term_supports_colors() + +HERE = os.path.abspath(os.path.dirname(__file__)) +loadTestsFromTestCase = unittest.defaultTestLoader.loadTestsFromTestCase + + +def cprint(msg, color, bold=False, file=None): + if file is None: + file = sys.stderr if color == 'red' else sys.stdout + if USE_COLORS: + print_color(msg, color, bold=bold, file=file) + else: + print(msg, file=file) + + +class TestLoader: + + testdir = HERE + skip_files = ['test_memleaks.py'] + if "WHEELHOUSE_UPLOADER_USERNAME" in os.environ: + skip_files.extend(['test_osx.py', 'test_linux.py', 'test_posix.py']) + + def _get_testmods(self): + return [os.path.join(self.testdir, x) + for x in os.listdir(self.testdir) + if x.startswith('test_') and x.endswith('.py') and + x not in self.skip_files] + + def _iter_testmod_classes(self): + """Iterate over all test files in this directory and return + all TestCase classes in them. + """ + for path in self._get_testmods(): + mod = import_module_by_path(path) + for name in dir(mod): + obj = getattr(mod, name) + if isinstance(obj, type) and \ + issubclass(obj, unittest.TestCase): + yield obj + + def all(self): + suite = unittest.TestSuite() + for obj in self._iter_testmod_classes(): + test = loadTestsFromTestCase(obj) + suite.addTest(test) + return suite + + def last_failed(self): + # ...from previously failed test run + suite = unittest.TestSuite() + if not os.path.isfile(FAILED_TESTS_FNAME): + return suite + with open(FAILED_TESTS_FNAME, 'rt') as f: + names = f.read().split() + for n in names: + test = unittest.defaultTestLoader.loadTestsFromName(n) + suite.addTest(test) + return suite + + def from_name(self, name): + if name.endswith('.py'): + name = os.path.splitext(os.path.basename(name))[0] + return unittest.defaultTestLoader.loadTestsFromName(name) + + +class ColouredResult(unittest.TextTestResult): + + def addSuccess(self, test): + unittest.TestResult.addSuccess(self, test) + cprint("OK", "green") + + def addError(self, test, err): + unittest.TestResult.addError(self, test, err) + cprint("ERROR", "red", bold=True) + + def addFailure(self, test, err): + unittest.TestResult.addFailure(self, test, err) + cprint("FAIL", "red") + + def addSkip(self, test, reason): + unittest.TestResult.addSkip(self, test, reason) + cprint("skipped: %s" % reason.strip(), "brown") + + def printErrorList(self, flavour, errors): + flavour = hilite(flavour, "red", bold=flavour == 'ERROR') + super().printErrorList(flavour, errors) + + +class ColouredTextRunner(unittest.TextTestRunner): + """ + A coloured text runner which also prints failed tests on KeyboardInterrupt + and save failed tests in a file so that they can be re-run. + """ + resultclass = ColouredResult if USE_COLORS else unittest.TextTestResult + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + self.failed_tnames = set() + + def _makeResult(self): + # Store result instance so that it can be accessed on + # KeyboardInterrupt. + self.result = super()._makeResult() + return self.result + + def _write_last_failed(self): + if self.failed_tnames: + with open(FAILED_TESTS_FNAME, 'wt') as f: + for tname in self.failed_tnames: + f.write(tname + '\n') + + def _save_result(self, result): + if not result.wasSuccessful(): + for t in result.errors + result.failures: + tname = t[0].id() + self.failed_tnames.add(tname) + + def _run(self, suite): + try: + result = super().run(suite) + except (KeyboardInterrupt, SystemExit): + result = self.runner.result + result.printErrors() + raise sys.exit(1) + else: + self._save_result(result) + return result + + def _exit(self, success): + if success: + cprint("SUCCESS", "green", bold=True) + safe_rmpath(FAILED_TESTS_FNAME) + sys.exit(0) + else: + cprint("FAILED", "red", bold=True) + self._write_last_failed() + sys.exit(1) + + def run(self, suite): + result = self._run(suite) + self._exit(result.wasSuccessful()) + + +class ParallelRunner(ColouredTextRunner): + + @staticmethod + def _parallelize(suite): + def fdopen(fd, mode, *kwds): + stream = orig_fdopen(fd, mode) + atexit.register(stream.close) + return stream + + # Monkey patch concurrencytest lib bug (fdopen() stream not closed). + # https://github.com/cgoldberg/concurrencytest/issues/11 + orig_fdopen = os.fdopen + concurrencytest.os.fdopen = fdopen + forker = concurrencytest.fork_for_tests(NWORKERS) + return concurrencytest.ConcurrentTestSuite(suite, forker) + + @staticmethod + def _split_suite(suite): + serial = unittest.TestSuite() + parallel = unittest.TestSuite() + for test in suite: + if test.countTestCases() == 0: + continue + elif isinstance(test, unittest.TestSuite): + test_class = test._tests[0].__class__ + elif isinstance(test, unittest.TestCase): + test_class = test + else: + raise TypeError("can't recognize type %r" % test) + + if getattr(test_class, '_serialrun', False): + serial.addTest(test) + else: + parallel.addTest(test) + return (serial, parallel) + + def run(self, suite): + ser_suite, par_suite = self._split_suite(suite) + par_suite = self._parallelize(par_suite) + + # run parallel + cprint("starting parallel tests using %s workers" % NWORKERS, + "green", bold=True) + t = time.time() + par = self._run(par_suite) + par_elapsed = time.time() - t + + # At this point we should have N zombies (the workers), which + # will disappear with wait(). + orphans = psutil.Process().children() + gone, alive = psutil.wait_procs(orphans, timeout=1) + if alive: + cprint("alive processes %s" % alive, "red") + reap_children() + + # run serial + t = time.time() + ser = self._run(ser_suite) + ser_elapsed = time.time() - t + + # print + if not par.wasSuccessful() and ser_suite.countTestCases() > 0: + par.printErrors() # print them again at the bottom + par_fails, par_errs, par_skips = map(len, (par.failures, + par.errors, + par.skipped)) + ser_fails, ser_errs, ser_skips = map(len, (ser.failures, + ser.errors, + ser.skipped)) + print(textwrap.dedent(""" + +----------+----------+----------+----------+----------+----------+ + | | total | failures | errors | skipped | time | + +----------+----------+----------+----------+----------+----------+ + | parallel | %3s | %3s | %3s | %3s | %.2fs | + +----------+----------+----------+----------+----------+----------+ + | serial | %3s | %3s | %3s | %3s | %.2fs | + +----------+----------+----------+----------+----------+----------+ + """ % (par.testsRun, par_fails, par_errs, par_skips, par_elapsed, + ser.testsRun, ser_fails, ser_errs, ser_skips, ser_elapsed))) + print("Ran %s tests in %.3fs using %s workers" % ( + par.testsRun + ser.testsRun, par_elapsed + ser_elapsed, NWORKERS)) + ok = par.wasSuccessful() and ser.wasSuccessful() + self._exit(ok) + + +def get_runner(parallel=False): + def warn(msg): + cprint(msg + " Running serial tests instead.", "red") + if parallel: + if psutil.WINDOWS: + warn("Can't run parallel tests on Windows.") + elif concurrencytest is None: + warn("concurrencytest module is not installed.") + elif NWORKERS == 1: + warn("Only 1 CPU available.") + else: + return ParallelRunner(verbosity=VERBOSITY) + return ColouredTextRunner(verbosity=VERBOSITY) + + +# Used by test_*,py modules. +def run_from_name(name): + if CI_TESTING: + print_sysinfo() + suite = TestLoader().from_name(name) + runner = get_runner() + runner.run(suite) + + +def setup(): + psutil._set_debug(True) + + +def main(): + setup() + usage = "python3 -m psutil.tests [opts] [test-name]" + parser = optparse.OptionParser(usage=usage, description="run unit tests") + parser.add_option("--last-failed", + action="store_true", default=False, + help="only run last failed tests") + parser.add_option("--parallel", + action="store_true", default=False, + help="run tests in parallel") + opts, args = parser.parse_args() + + if not opts.last_failed: + safe_rmpath(FAILED_TESTS_FNAME) + + # loader + loader = TestLoader() + if args: + if len(args) > 1: + parser.print_usage() + return sys.exit(1) + else: + suite = loader.from_name(args[0]) + elif opts.last_failed: + suite = loader.last_failed() + else: + suite = loader.all() + + if CI_TESTING: + print_sysinfo() + runner = get_runner(opts.parallel) + runner.run(suite) + + +if __name__ == '__main__': + main() diff --git a/lib/psutil/tests/test_aix.py b/lib/psutil/tests/test_aix.py new file mode 100644 index 0000000..4a23b77 --- /dev/null +++ b/lib/psutil/tests/test_aix.py @@ -0,0 +1,122 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola' +# Copyright (c) 2017, Arnon Yaari +# All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""AIX specific tests.""" + +import re +import unittest + +import psutil +from psutil import AIX +from psutil.tests import PsutilTestCase +from psutil.tests import sh + + +@unittest.skipIf(not AIX, "AIX only") +class AIXSpecificTestCase(PsutilTestCase): + + def test_virtual_memory(self): + out = sh('/usr/bin/svmon -O unit=KB') + re_pattern = r"memory\s*" + for field in ("size inuse free pin virtual available mmode").split(): + re_pattern += r"(?P<%s>\S+)\s+" % (field,) + matchobj = re.search(re_pattern, out) + + self.assertIsNotNone( + matchobj, "svmon command returned unexpected output") + + KB = 1024 + total = int(matchobj.group("size")) * KB + available = int(matchobj.group("available")) * KB + used = int(matchobj.group("inuse")) * KB + free = int(matchobj.group("free")) * KB + + psutil_result = psutil.virtual_memory() + + # TOLERANCE_SYS_MEM from psutil.tests is not enough. For some reason + # we're seeing differences of ~1.2 MB. 2 MB is still a good tolerance + # when compared to GBs. + TOLERANCE_SYS_MEM = 2 * KB * KB # 2 MB + self.assertEqual(psutil_result.total, total) + self.assertAlmostEqual( + psutil_result.used, used, delta=TOLERANCE_SYS_MEM) + self.assertAlmostEqual( + psutil_result.available, available, delta=TOLERANCE_SYS_MEM) + self.assertAlmostEqual( + psutil_result.free, free, delta=TOLERANCE_SYS_MEM) + + def test_swap_memory(self): + out = sh('/usr/sbin/lsps -a') + # From the man page, "The size is given in megabytes" so we assume + # we'll always have 'MB' in the result + # TODO maybe try to use "swap -l" to check "used" too, but its units + # are not guaranteed to be "MB" so parsing may not be consistent + matchobj = re.search(r"(?P<space>\S+)\s+" + r"(?P<vol>\S+)\s+" + r"(?P<vg>\S+)\s+" + r"(?P<size>\d+)MB", out) + + self.assertIsNotNone( + matchobj, "lsps command returned unexpected output") + + total_mb = int(matchobj.group("size")) + MB = 1024 ** 2 + psutil_result = psutil.swap_memory() + # we divide our result by MB instead of multiplying the lsps value by + # MB because lsps may round down, so we round down too + self.assertEqual(int(psutil_result.total / MB), total_mb) + + def test_cpu_stats(self): + out = sh('/usr/bin/mpstat -a') + + re_pattern = r"ALL\s*" + for field in ("min maj mpcs mpcr dev soft dec ph cs ics bound rq " + "push S3pull S3grd S0rd S1rd S2rd S3rd S4rd S5rd " + "sysc").split(): + re_pattern += r"(?P<%s>\S+)\s+" % (field,) + matchobj = re.search(re_pattern, out) + + self.assertIsNotNone( + matchobj, "mpstat command returned unexpected output") + + # numbers are usually in the millions so 1000 is ok for tolerance + CPU_STATS_TOLERANCE = 1000 + psutil_result = psutil.cpu_stats() + self.assertAlmostEqual( + psutil_result.ctx_switches, + int(matchobj.group("cs")), + delta=CPU_STATS_TOLERANCE) + self.assertAlmostEqual( + psutil_result.syscalls, + int(matchobj.group("sysc")), + delta=CPU_STATS_TOLERANCE) + self.assertAlmostEqual( + psutil_result.interrupts, + int(matchobj.group("dev")), + delta=CPU_STATS_TOLERANCE) + self.assertAlmostEqual( + psutil_result.soft_interrupts, + int(matchobj.group("soft")), + delta=CPU_STATS_TOLERANCE) + + def test_cpu_count_logical(self): + out = sh('/usr/bin/mpstat -a') + mpstat_lcpu = int(re.search(r"lcpu=(\d+)", out).group(1)) + psutil_lcpu = psutil.cpu_count(logical=True) + self.assertEqual(mpstat_lcpu, psutil_lcpu) + + def test_net_if_addrs_names(self): + out = sh('/etc/ifconfig -l') + ifconfig_names = set(out.split()) + psutil_names = set(psutil.net_if_addrs().keys()) + self.assertSetEqual(ifconfig_names, psutil_names) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_bsd.py b/lib/psutil/tests/test_bsd.py new file mode 100644 index 0000000..e541547 --- /dev/null +++ b/lib/psutil/tests/test_bsd.py @@ -0,0 +1,568 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +# TODO: (FreeBSD) add test for comparing connections with 'sockstat' cmd. + + +"""Tests specific to all BSD platforms.""" + + +import datetime +import os +import re +import time +import unittest + +import psutil +from psutil import BSD +from psutil import FREEBSD +from psutil import NETBSD +from psutil import OPENBSD +from psutil.tests import HAS_BATTERY +from psutil.tests import TOLERANCE_SYS_MEM +from psutil.tests import PsutilTestCase +from psutil.tests import retry_on_failure +from psutil.tests import sh +from psutil.tests import spawn_testproc +from psutil.tests import terminate +from psutil.tests import which + + +if BSD: + from psutil._psutil_posix import getpagesize + + PAGESIZE = getpagesize() + # muse requires root privileges + MUSE_AVAILABLE = True if os.getuid() == 0 and which('muse') else False +else: + PAGESIZE = None + MUSE_AVAILABLE = False + + +def sysctl(cmdline): + """Expects a sysctl command with an argument and parse the result + returning only the value of interest. + """ + result = sh("sysctl " + cmdline) + if FREEBSD: + result = result[result.find(": ") + 2:] + elif OPENBSD or NETBSD: + result = result[result.find("=") + 1:] + try: + return int(result) + except ValueError: + return result + + +def muse(field): + """Thin wrapper around 'muse' cmdline utility.""" + out = sh('muse') + for line in out.split('\n'): + if line.startswith(field): + break + else: + raise ValueError("line not found") + return int(line.split()[1]) + + +# ===================================================================== +# --- All BSD* +# ===================================================================== + + +@unittest.skipIf(not BSD, "BSD only") +class BSDTestCase(PsutilTestCase): + """Generic tests common to all BSD variants.""" + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc().pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + @unittest.skipIf(NETBSD, "-o lstart doesn't work on NETBSD") + def test_process_create_time(self): + output = sh("ps -o lstart -p %s" % self.pid) + start_ps = output.replace('STARTED', '').strip() + start_psutil = psutil.Process(self.pid).create_time() + start_psutil = time.strftime("%a %b %e %H:%M:%S %Y", + time.localtime(start_psutil)) + self.assertEqual(start_ps, start_psutil) + + def test_disks(self): + # test psutil.disk_usage() and psutil.disk_partitions() + # against "df -a" + def df(path): + out = sh('df -k "%s"' % path).strip() + lines = out.split('\n') + lines.pop(0) + line = lines.pop(0) + dev, total, used, free = line.split()[:4] + if dev == 'none': + dev = '' + total = int(total) * 1024 + used = int(used) * 1024 + free = int(free) * 1024 + return dev, total, used, free + + for part in psutil.disk_partitions(all=False): + usage = psutil.disk_usage(part.mountpoint) + dev, total, used, free = df(part.mountpoint) + self.assertEqual(part.device, dev) + self.assertEqual(usage.total, total) + # 10 MB tolerance + if abs(usage.free - free) > 10 * 1024 * 1024: + raise self.fail("psutil=%s, df=%s" % (usage.free, free)) + if abs(usage.used - used) > 10 * 1024 * 1024: + raise self.fail("psutil=%s, df=%s" % (usage.used, used)) + + @unittest.skipIf(not which('sysctl'), "sysctl cmd not available") + def test_cpu_count_logical(self): + syst = sysctl("hw.ncpu") + self.assertEqual(psutil.cpu_count(logical=True), syst) + + @unittest.skipIf(not which('sysctl'), "sysctl cmd not available") + def test_virtual_memory_total(self): + num = sysctl('hw.physmem') + self.assertEqual(num, psutil.virtual_memory().total) + + def test_net_if_stats(self): + for name, stats in psutil.net_if_stats().items(): + try: + out = sh("ifconfig %s" % name) + except RuntimeError: + pass + else: + self.assertEqual(stats.isup, 'RUNNING' in out, msg=out) + if "mtu" in out: + self.assertEqual(stats.mtu, + int(re.findall(r'mtu (\d+)', out)[0])) + + +# ===================================================================== +# --- FreeBSD +# ===================================================================== + + +@unittest.skipIf(not FREEBSD, "FREEBSD only") +class FreeBSDPsutilTestCase(PsutilTestCase): + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc().pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + @retry_on_failure() + def test_memory_maps(self): + out = sh('procstat -v %s' % self.pid) + maps = psutil.Process(self.pid).memory_maps(grouped=False) + lines = out.split('\n')[1:] + while lines: + line = lines.pop() + fields = line.split() + _, start, stop, perms, res = fields[:5] + map = maps.pop() + self.assertEqual("%s-%s" % (start, stop), map.addr) + self.assertEqual(int(res), map.rss) + if not map.path.startswith('['): + self.assertEqual(fields[10], map.path) + + def test_exe(self): + out = sh('procstat -b %s' % self.pid) + self.assertEqual(psutil.Process(self.pid).exe(), + out.split('\n')[1].split()[-1]) + + def test_cmdline(self): + out = sh('procstat -c %s' % self.pid) + self.assertEqual(' '.join(psutil.Process(self.pid).cmdline()), + ' '.join(out.split('\n')[1].split()[2:])) + + def test_uids_gids(self): + out = sh('procstat -s %s' % self.pid) + euid, ruid, suid, egid, rgid, sgid = out.split('\n')[1].split()[2:8] + p = psutil.Process(self.pid) + uids = p.uids() + gids = p.gids() + self.assertEqual(uids.real, int(ruid)) + self.assertEqual(uids.effective, int(euid)) + self.assertEqual(uids.saved, int(suid)) + self.assertEqual(gids.real, int(rgid)) + self.assertEqual(gids.effective, int(egid)) + self.assertEqual(gids.saved, int(sgid)) + + @retry_on_failure() + def test_ctx_switches(self): + tested = [] + out = sh('procstat -r %s' % self.pid) + p = psutil.Process(self.pid) + for line in out.split('\n'): + line = line.lower().strip() + if ' voluntary context' in line: + pstat_value = int(line.split()[-1]) + psutil_value = p.num_ctx_switches().voluntary + self.assertEqual(pstat_value, psutil_value) + tested.append(None) + elif ' involuntary context' in line: + pstat_value = int(line.split()[-1]) + psutil_value = p.num_ctx_switches().involuntary + self.assertEqual(pstat_value, psutil_value) + tested.append(None) + if len(tested) != 2: + raise RuntimeError("couldn't find lines match in procstat out") + + @retry_on_failure() + def test_cpu_times(self): + tested = [] + out = sh('procstat -r %s' % self.pid) + p = psutil.Process(self.pid) + for line in out.split('\n'): + line = line.lower().strip() + if 'user time' in line: + pstat_value = float('0.' + line.split()[-1].split('.')[-1]) + psutil_value = p.cpu_times().user + self.assertEqual(pstat_value, psutil_value) + tested.append(None) + elif 'system time' in line: + pstat_value = float('0.' + line.split()[-1].split('.')[-1]) + psutil_value = p.cpu_times().system + self.assertEqual(pstat_value, psutil_value) + tested.append(None) + if len(tested) != 2: + raise RuntimeError("couldn't find lines match in procstat out") + + +@unittest.skipIf(not FREEBSD, "FREEBSD only") +class FreeBSDSystemTestCase(PsutilTestCase): + + @staticmethod + def parse_swapinfo(): + # the last line is always the total + output = sh("swapinfo -k").splitlines()[-1] + parts = re.split(r'\s+', output) + + if not parts: + raise ValueError("Can't parse swapinfo: %s" % output) + + # the size is in 1k units, so multiply by 1024 + total, used, free = (int(p) * 1024 for p in parts[1:4]) + return total, used, free + + def test_cpu_frequency_against_sysctl(self): + # Currently only cpu 0 is frequency is supported in FreeBSD + # All other cores use the same frequency. + sensor = "dev.cpu.0.freq" + try: + sysctl_result = int(sysctl(sensor)) + except RuntimeError: + self.skipTest("frequencies not supported by kernel") + self.assertEqual(psutil.cpu_freq().current, sysctl_result) + + sensor = "dev.cpu.0.freq_levels" + sysctl_result = sysctl(sensor) + # sysctl returns a string of the format: + # <freq_level_1>/<voltage_level_1> <freq_level_2>/<voltage_level_2>... + # Ordered highest available to lowest available. + max_freq = int(sysctl_result.split()[0].split("/")[0]) + min_freq = int(sysctl_result.split()[-1].split("/")[0]) + self.assertEqual(psutil.cpu_freq().max, max_freq) + self.assertEqual(psutil.cpu_freq().min, min_freq) + + # --- virtual_memory(); tests against sysctl + + @retry_on_failure() + def test_vmem_active(self): + syst = sysctl("vm.stats.vm.v_active_count") * PAGESIZE + self.assertAlmostEqual(psutil.virtual_memory().active, syst, + delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_inactive(self): + syst = sysctl("vm.stats.vm.v_inactive_count") * PAGESIZE + self.assertAlmostEqual(psutil.virtual_memory().inactive, syst, + delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_wired(self): + syst = sysctl("vm.stats.vm.v_wire_count") * PAGESIZE + self.assertAlmostEqual(psutil.virtual_memory().wired, syst, + delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_cached(self): + syst = sysctl("vm.stats.vm.v_cache_count") * PAGESIZE + self.assertAlmostEqual(psutil.virtual_memory().cached, syst, + delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_free(self): + syst = sysctl("vm.stats.vm.v_free_count") * PAGESIZE + self.assertAlmostEqual(psutil.virtual_memory().free, syst, + delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_buffers(self): + syst = sysctl("vfs.bufspace") + self.assertAlmostEqual(psutil.virtual_memory().buffers, syst, + delta=TOLERANCE_SYS_MEM) + + # --- virtual_memory(); tests against muse + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + def test_muse_vmem_total(self): + num = muse('Total') + self.assertEqual(psutil.virtual_memory().total, num) + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + @retry_on_failure() + def test_muse_vmem_active(self): + num = muse('Active') + self.assertAlmostEqual(psutil.virtual_memory().active, num, + delta=TOLERANCE_SYS_MEM) + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + @retry_on_failure() + def test_muse_vmem_inactive(self): + num = muse('Inactive') + self.assertAlmostEqual(psutil.virtual_memory().inactive, num, + delta=TOLERANCE_SYS_MEM) + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + @retry_on_failure() + def test_muse_vmem_wired(self): + num = muse('Wired') + self.assertAlmostEqual(psutil.virtual_memory().wired, num, + delta=TOLERANCE_SYS_MEM) + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + @retry_on_failure() + def test_muse_vmem_cached(self): + num = muse('Cache') + self.assertAlmostEqual(psutil.virtual_memory().cached, num, + delta=TOLERANCE_SYS_MEM) + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + @retry_on_failure() + def test_muse_vmem_free(self): + num = muse('Free') + self.assertAlmostEqual(psutil.virtual_memory().free, num, + delta=TOLERANCE_SYS_MEM) + + @unittest.skipIf(not MUSE_AVAILABLE, "muse not installed") + @retry_on_failure() + def test_muse_vmem_buffers(self): + num = muse('Buffer') + self.assertAlmostEqual(psutil.virtual_memory().buffers, num, + delta=TOLERANCE_SYS_MEM) + + def test_cpu_stats_ctx_switches(self): + self.assertAlmostEqual(psutil.cpu_stats().ctx_switches, + sysctl('vm.stats.sys.v_swtch'), delta=1000) + + def test_cpu_stats_interrupts(self): + self.assertAlmostEqual(psutil.cpu_stats().interrupts, + sysctl('vm.stats.sys.v_intr'), delta=1000) + + def test_cpu_stats_soft_interrupts(self): + self.assertAlmostEqual(psutil.cpu_stats().soft_interrupts, + sysctl('vm.stats.sys.v_soft'), delta=1000) + + @retry_on_failure() + def test_cpu_stats_syscalls(self): + # pretty high tolerance but it looks like it's OK. + self.assertAlmostEqual(psutil.cpu_stats().syscalls, + sysctl('vm.stats.sys.v_syscall'), delta=200000) + + # def test_cpu_stats_traps(self): + # self.assertAlmostEqual(psutil.cpu_stats().traps, + # sysctl('vm.stats.sys.v_trap'), delta=1000) + + # --- swap memory + + def test_swapmem_free(self): + total, used, free = self.parse_swapinfo() + self.assertAlmostEqual( + psutil.swap_memory().free, free, delta=TOLERANCE_SYS_MEM) + + def test_swapmem_used(self): + total, used, free = self.parse_swapinfo() + self.assertAlmostEqual( + psutil.swap_memory().used, used, delta=TOLERANCE_SYS_MEM) + + def test_swapmem_total(self): + total, used, free = self.parse_swapinfo() + self.assertAlmostEqual( + psutil.swap_memory().total, total, delta=TOLERANCE_SYS_MEM) + + # --- others + + def test_boot_time(self): + s = sysctl('sysctl kern.boottime') + s = s[s.find(" sec = ") + 7:] + s = s[:s.find(',')] + btime = int(s) + self.assertEqual(btime, psutil.boot_time()) + + # --- sensors_battery + + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_sensors_battery(self): + def secs2hours(secs): + m, s = divmod(secs, 60) + h, m = divmod(m, 60) + return "%d:%02d" % (h, m) + + out = sh("acpiconf -i 0") + fields = dict([(x.split('\t')[0], x.split('\t')[-1]) + for x in out.split("\n")]) + metrics = psutil.sensors_battery() + percent = int(fields['Remaining capacity:'].replace('%', '')) + remaining_time = fields['Remaining time:'] + self.assertEqual(metrics.percent, percent) + if remaining_time == 'unknown': + self.assertEqual(metrics.secsleft, psutil.POWER_TIME_UNLIMITED) + else: + self.assertEqual(secs2hours(metrics.secsleft), remaining_time) + + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_sensors_battery_against_sysctl(self): + self.assertEqual(psutil.sensors_battery().percent, + sysctl("hw.acpi.battery.life")) + self.assertEqual(psutil.sensors_battery().power_plugged, + sysctl("hw.acpi.acline") == 1) + secsleft = psutil.sensors_battery().secsleft + if secsleft < 0: + self.assertEqual(sysctl("hw.acpi.battery.time"), -1) + else: + self.assertEqual(secsleft, sysctl("hw.acpi.battery.time") * 60) + + @unittest.skipIf(HAS_BATTERY, "has battery") + def test_sensors_battery_no_battery(self): + # If no battery is present one of these calls is supposed + # to fail, see: + # https://github.com/giampaolo/psutil/issues/1074 + with self.assertRaises(RuntimeError): + sysctl("hw.acpi.battery.life") + sysctl("hw.acpi.battery.time") + sysctl("hw.acpi.acline") + self.assertIsNone(psutil.sensors_battery()) + + # --- sensors_temperatures + + def test_sensors_temperatures_against_sysctl(self): + num_cpus = psutil.cpu_count(True) + for cpu in range(num_cpus): + sensor = "dev.cpu.%s.temperature" % cpu + # sysctl returns a string in the format 46.0C + try: + sysctl_result = int(float(sysctl(sensor)[:-1])) + except RuntimeError: + self.skipTest("temperatures not supported by kernel") + self.assertAlmostEqual( + psutil.sensors_temperatures()["coretemp"][cpu].current, + sysctl_result, delta=10) + + sensor = "dev.cpu.%s.coretemp.tjmax" % cpu + sysctl_result = int(float(sysctl(sensor)[:-1])) + self.assertEqual( + psutil.sensors_temperatures()["coretemp"][cpu].high, + sysctl_result) + + +# ===================================================================== +# --- OpenBSD +# ===================================================================== + + +@unittest.skipIf(not OPENBSD, "OPENBSD only") +class OpenBSDTestCase(PsutilTestCase): + + def test_boot_time(self): + s = sysctl('kern.boottime') + sys_bt = datetime.datetime.strptime(s, "%a %b %d %H:%M:%S %Y") + psutil_bt = datetime.datetime.fromtimestamp(psutil.boot_time()) + self.assertEqual(sys_bt, psutil_bt) + + +# ===================================================================== +# --- NetBSD +# ===================================================================== + + +@unittest.skipIf(not NETBSD, "NETBSD only") +class NetBSDTestCase(PsutilTestCase): + + @staticmethod + def parse_meminfo(look_for): + with open('/proc/meminfo', 'rt') as f: + for line in f: + if line.startswith(look_for): + return int(line.split()[1]) * 1024 + raise ValueError("can't find %s" % look_for) + + def test_vmem_total(self): + self.assertEqual( + psutil.virtual_memory().total, self.parse_meminfo("MemTotal:")) + + def test_vmem_free(self): + self.assertAlmostEqual( + psutil.virtual_memory().free, self.parse_meminfo("MemFree:"), + delta=TOLERANCE_SYS_MEM) + + def test_vmem_buffers(self): + self.assertAlmostEqual( + psutil.virtual_memory().buffers, self.parse_meminfo("Buffers:"), + delta=TOLERANCE_SYS_MEM) + + def test_vmem_shared(self): + self.assertAlmostEqual( + psutil.virtual_memory().shared, self.parse_meminfo("MemShared:"), + delta=TOLERANCE_SYS_MEM) + + def test_swapmem_total(self): + self.assertAlmostEqual( + psutil.swap_memory().total, self.parse_meminfo("SwapTotal:"), + delta=TOLERANCE_SYS_MEM) + + def test_swapmem_free(self): + self.assertAlmostEqual( + psutil.swap_memory().free, self.parse_meminfo("SwapFree:"), + delta=TOLERANCE_SYS_MEM) + + def test_swapmem_used(self): + smem = psutil.swap_memory() + self.assertEqual(smem.used, smem.total - smem.free) + + def test_cpu_stats_interrupts(self): + with open('/proc/stat', 'rb') as f: + for line in f: + if line.startswith(b'intr'): + interrupts = int(line.split()[1]) + break + else: + raise ValueError("couldn't find line") + self.assertAlmostEqual( + psutil.cpu_stats().interrupts, interrupts, delta=1000) + + def test_cpu_stats_ctx_switches(self): + with open('/proc/stat', 'rb') as f: + for line in f: + if line.startswith(b'ctxt'): + ctx_switches = int(line.split()[1]) + break + else: + raise ValueError("couldn't find line") + self.assertAlmostEqual( + psutil.cpu_stats().ctx_switches, ctx_switches, delta=1000) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_connections.py b/lib/psutil/tests/test_connections.py new file mode 100644 index 0000000..f3b1f83 --- /dev/null +++ b/lib/psutil/tests/test_connections.py @@ -0,0 +1,554 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Tests for net_connections() and Process.connections() APIs.""" + +import os +import socket +import textwrap +import unittest +from contextlib import closing +from socket import AF_INET +from socket import AF_INET6 +from socket import SOCK_DGRAM +from socket import SOCK_STREAM + +import psutil +from psutil import FREEBSD +from psutil import LINUX +from psutil import MACOS +from psutil import NETBSD +from psutil import OPENBSD +from psutil import POSIX +from psutil import SUNOS +from psutil import WINDOWS +from psutil._common import supports_ipv6 +from psutil._compat import PY3 +from psutil.tests import AF_UNIX +from psutil.tests import HAS_CONNECTIONS_UNIX +from psutil.tests import SKIP_SYSCONS +from psutil.tests import PsutilTestCase +from psutil.tests import bind_socket +from psutil.tests import bind_unix_socket +from psutil.tests import check_connection_ntuple +from psutil.tests import create_sockets +from psutil.tests import reap_children +from psutil.tests import retry_on_failure +from psutil.tests import serialrun +from psutil.tests import skip_on_access_denied +from psutil.tests import tcp_socketpair +from psutil.tests import unix_socketpair +from psutil.tests import wait_for_file + + +thisproc = psutil.Process() +SOCK_SEQPACKET = getattr(socket, "SOCK_SEQPACKET", object()) + + +@serialrun +class ConnectionTestCase(PsutilTestCase): + + def setUp(self): + if not (NETBSD or FREEBSD): + # process opens a UNIX socket to /var/log/run. + cons = thisproc.connections(kind='all') + assert not cons, cons + + def tearDown(self): + if not (FREEBSD or NETBSD): + # Make sure we closed all resources. + # NetBSD opens a UNIX socket to /var/log/run. + cons = thisproc.connections(kind='all') + assert not cons, cons + + def compare_procsys_connections(self, pid, proc_cons, kind='all'): + """Given a process PID and its list of connections compare + those against system-wide connections retrieved via + psutil.net_connections. + """ + try: + sys_cons = psutil.net_connections(kind=kind) + except psutil.AccessDenied: + # On MACOS, system-wide connections are retrieved by iterating + # over all processes + if MACOS: + return + else: + raise + # Filter for this proc PID and exlucde PIDs from the tuple. + sys_cons = [c[:-1] for c in sys_cons if c.pid == pid] + sys_cons.sort() + proc_cons.sort() + self.assertEqual(proc_cons, sys_cons) + + +class TestBasicOperations(ConnectionTestCase): + + @unittest.skipIf(SKIP_SYSCONS, "requires root") + def test_system(self): + with create_sockets(): + for conn in psutil.net_connections(kind='all'): + check_connection_ntuple(conn) + + def test_process(self): + with create_sockets(): + for conn in psutil.Process().connections(kind='all'): + check_connection_ntuple(conn) + + def test_invalid_kind(self): + self.assertRaises(ValueError, thisproc.connections, kind='???') + self.assertRaises(ValueError, psutil.net_connections, kind='???') + + +@serialrun +class TestUnconnectedSockets(ConnectionTestCase): + """Tests sockets which are open but not connected to anything.""" + + def get_conn_from_sock(self, sock): + cons = thisproc.connections(kind='all') + smap = dict([(c.fd, c) for c in cons]) + if NETBSD or FREEBSD: + # NetBSD opens a UNIX socket to /var/log/run + # so there may be more connections. + return smap[sock.fileno()] + else: + self.assertEqual(len(cons), 1) + if cons[0].fd != -1: + self.assertEqual(smap[sock.fileno()].fd, sock.fileno()) + return cons[0] + + def check_socket(self, sock): + """Given a socket, makes sure it matches the one obtained + via psutil. It assumes this process created one connection + only (the one supposed to be checked). + """ + conn = self.get_conn_from_sock(sock) + check_connection_ntuple(conn) + + # fd, family, type + if conn.fd != -1: + self.assertEqual(conn.fd, sock.fileno()) + self.assertEqual(conn.family, sock.family) + # see: http://bugs.python.org/issue30204 + self.assertEqual( + conn.type, sock.getsockopt(socket.SOL_SOCKET, socket.SO_TYPE)) + + # local address + laddr = sock.getsockname() + if not laddr and PY3 and isinstance(laddr, bytes): + # See: http://bugs.python.org/issue30205 + laddr = laddr.decode() + if sock.family == AF_INET6: + laddr = laddr[:2] + if sock.family == AF_UNIX and OPENBSD: + # No addresses are set for UNIX sockets on OpenBSD. + pass + else: + self.assertEqual(conn.laddr, laddr) + + # XXX Solaris can't retrieve system-wide UNIX sockets + if sock.family == AF_UNIX and HAS_CONNECTIONS_UNIX: + cons = thisproc.connections(kind='all') + self.compare_procsys_connections(os.getpid(), cons, kind='all') + return conn + + def test_tcp_v4(self): + addr = ("127.0.0.1", 0) + with closing(bind_socket(AF_INET, SOCK_STREAM, addr=addr)) as sock: + conn = self.check_socket(sock) + assert not conn.raddr + self.assertEqual(conn.status, psutil.CONN_LISTEN) + + @unittest.skipIf(not supports_ipv6(), "IPv6 not supported") + def test_tcp_v6(self): + addr = ("::1", 0) + with closing(bind_socket(AF_INET6, SOCK_STREAM, addr=addr)) as sock: + conn = self.check_socket(sock) + assert not conn.raddr + self.assertEqual(conn.status, psutil.CONN_LISTEN) + + def test_udp_v4(self): + addr = ("127.0.0.1", 0) + with closing(bind_socket(AF_INET, SOCK_DGRAM, addr=addr)) as sock: + conn = self.check_socket(sock) + assert not conn.raddr + self.assertEqual(conn.status, psutil.CONN_NONE) + + @unittest.skipIf(not supports_ipv6(), "IPv6 not supported") + def test_udp_v6(self): + addr = ("::1", 0) + with closing(bind_socket(AF_INET6, SOCK_DGRAM, addr=addr)) as sock: + conn = self.check_socket(sock) + assert not conn.raddr + self.assertEqual(conn.status, psutil.CONN_NONE) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_unix_tcp(self): + testfn = self.get_testfn() + with closing(bind_unix_socket(testfn, type=SOCK_STREAM)) as sock: + conn = self.check_socket(sock) + assert not conn.raddr + self.assertEqual(conn.status, psutil.CONN_NONE) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_unix_udp(self): + testfn = self.get_testfn() + with closing(bind_unix_socket(testfn, type=SOCK_STREAM)) as sock: + conn = self.check_socket(sock) + assert not conn.raddr + self.assertEqual(conn.status, psutil.CONN_NONE) + + +@serialrun +class TestConnectedSocket(ConnectionTestCase): + """Test socket pairs which are are actually connected to + each other. + """ + + # On SunOS, even after we close() it, the server socket stays around + # in TIME_WAIT state. + @unittest.skipIf(SUNOS, "unreliable on SUONS") + def test_tcp(self): + addr = ("127.0.0.1", 0) + assert not thisproc.connections(kind='tcp4') + server, client = tcp_socketpair(AF_INET, addr=addr) + try: + cons = thisproc.connections(kind='tcp4') + self.assertEqual(len(cons), 2) + self.assertEqual(cons[0].status, psutil.CONN_ESTABLISHED) + self.assertEqual(cons[1].status, psutil.CONN_ESTABLISHED) + # May not be fast enough to change state so it stays + # commenteed. + # client.close() + # cons = thisproc.connections(kind='all') + # self.assertEqual(len(cons), 1) + # self.assertEqual(cons[0].status, psutil.CONN_CLOSE_WAIT) + finally: + server.close() + client.close() + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_unix(self): + testfn = self.get_testfn() + server, client = unix_socketpair(testfn) + try: + cons = thisproc.connections(kind='unix') + assert not (cons[0].laddr and cons[0].raddr) + assert not (cons[1].laddr and cons[1].raddr) + if NETBSD or FREEBSD: + # On NetBSD creating a UNIX socket will cause + # a UNIX connection to /var/run/log. + cons = [c for c in cons if c.raddr != '/var/run/log'] + self.assertEqual(len(cons), 2, msg=cons) + if LINUX or FREEBSD or SUNOS: + # remote path is never set + self.assertEqual(cons[0].raddr, "") + self.assertEqual(cons[1].raddr, "") + # one local address should though + self.assertEqual(testfn, cons[0].laddr or cons[1].laddr) + elif OPENBSD: + # No addresses whatsoever here. + for addr in (cons[0].laddr, cons[0].raddr, + cons[1].laddr, cons[1].raddr): + self.assertEqual(addr, "") + else: + # On other systems either the laddr or raddr + # of both peers are set. + self.assertEqual(cons[0].laddr or cons[1].laddr, testfn) + self.assertEqual(cons[0].raddr or cons[1].raddr, testfn) + finally: + server.close() + client.close() + + +class TestFilters(ConnectionTestCase): + + def test_filters(self): + def check(kind, families, types): + for conn in thisproc.connections(kind=kind): + self.assertIn(conn.family, families) + self.assertIn(conn.type, types) + if not SKIP_SYSCONS: + for conn in psutil.net_connections(kind=kind): + self.assertIn(conn.family, families) + self.assertIn(conn.type, types) + + with create_sockets(): + check('all', + [AF_INET, AF_INET6, AF_UNIX], + [SOCK_STREAM, SOCK_DGRAM, SOCK_SEQPACKET]) + check('inet', + [AF_INET, AF_INET6], + [SOCK_STREAM, SOCK_DGRAM]) + check('inet4', + [AF_INET], + [SOCK_STREAM, SOCK_DGRAM]) + check('tcp', + [AF_INET, AF_INET6], + [SOCK_STREAM]) + check('tcp4', + [AF_INET], + [SOCK_STREAM]) + check('tcp6', + [AF_INET6], + [SOCK_STREAM]) + check('udp', + [AF_INET, AF_INET6], + [SOCK_DGRAM]) + check('udp4', + [AF_INET], + [SOCK_DGRAM]) + check('udp6', + [AF_INET6], + [SOCK_DGRAM]) + if HAS_CONNECTIONS_UNIX: + check('unix', + [AF_UNIX], + [SOCK_STREAM, SOCK_DGRAM, SOCK_SEQPACKET]) + + @skip_on_access_denied(only_if=MACOS) + def test_combos(self): + reap_children() + + def check_conn(proc, conn, family, type, laddr, raddr, status, kinds): + all_kinds = ("all", "inet", "inet4", "inet6", "tcp", "tcp4", + "tcp6", "udp", "udp4", "udp6") + check_connection_ntuple(conn) + self.assertEqual(conn.family, family) + self.assertEqual(conn.type, type) + self.assertEqual(conn.laddr, laddr) + self.assertEqual(conn.raddr, raddr) + self.assertEqual(conn.status, status) + for kind in all_kinds: + cons = proc.connections(kind=kind) + if kind in kinds: + assert cons + else: + assert not cons, cons + # compare against system-wide connections + # XXX Solaris can't retrieve system-wide UNIX + # sockets. + if HAS_CONNECTIONS_UNIX: + self.compare_procsys_connections(proc.pid, [conn]) + + tcp_template = textwrap.dedent(""" + import socket, time + s = socket.socket({family}, socket.SOCK_STREAM) + s.bind(('{addr}', 0)) + s.listen(5) + with open('{testfn}', 'w') as f: + f.write(str(s.getsockname()[:2])) + time.sleep(60) + """) + + udp_template = textwrap.dedent(""" + import socket, time + s = socket.socket({family}, socket.SOCK_DGRAM) + s.bind(('{addr}', 0)) + with open('{testfn}', 'w') as f: + f.write(str(s.getsockname()[:2])) + time.sleep(60) + """) + + # must be relative on Windows + testfile = os.path.basename(self.get_testfn(dir=os.getcwd())) + tcp4_template = tcp_template.format( + family=int(AF_INET), addr="127.0.0.1", testfn=testfile) + udp4_template = udp_template.format( + family=int(AF_INET), addr="127.0.0.1", testfn=testfile) + tcp6_template = tcp_template.format( + family=int(AF_INET6), addr="::1", testfn=testfile) + udp6_template = udp_template.format( + family=int(AF_INET6), addr="::1", testfn=testfile) + + # launch various subprocess instantiating a socket of various + # families and types to enrich psutil results + tcp4_proc = self.pyrun(tcp4_template) + tcp4_addr = eval(wait_for_file(testfile, delete=True)) + udp4_proc = self.pyrun(udp4_template) + udp4_addr = eval(wait_for_file(testfile, delete=True)) + if supports_ipv6(): + tcp6_proc = self.pyrun(tcp6_template) + tcp6_addr = eval(wait_for_file(testfile, delete=True)) + udp6_proc = self.pyrun(udp6_template) + udp6_addr = eval(wait_for_file(testfile, delete=True)) + else: + tcp6_proc = None + udp6_proc = None + tcp6_addr = None + udp6_addr = None + + for p in thisproc.children(): + cons = p.connections() + self.assertEqual(len(cons), 1) + for conn in cons: + # TCP v4 + if p.pid == tcp4_proc.pid: + check_conn(p, conn, AF_INET, SOCK_STREAM, tcp4_addr, (), + psutil.CONN_LISTEN, + ("all", "inet", "inet4", "tcp", "tcp4")) + # UDP v4 + elif p.pid == udp4_proc.pid: + check_conn(p, conn, AF_INET, SOCK_DGRAM, udp4_addr, (), + psutil.CONN_NONE, + ("all", "inet", "inet4", "udp", "udp4")) + # TCP v6 + elif p.pid == getattr(tcp6_proc, "pid", None): + check_conn(p, conn, AF_INET6, SOCK_STREAM, tcp6_addr, (), + psutil.CONN_LISTEN, + ("all", "inet", "inet6", "tcp", "tcp6")) + # UDP v6 + elif p.pid == getattr(udp6_proc, "pid", None): + check_conn(p, conn, AF_INET6, SOCK_DGRAM, udp6_addr, (), + psutil.CONN_NONE, + ("all", "inet", "inet6", "udp", "udp6")) + + def test_count(self): + with create_sockets(): + # tcp + cons = thisproc.connections(kind='tcp') + self.assertEqual(len(cons), 2 if supports_ipv6() else 1) + for conn in cons: + self.assertIn(conn.family, (AF_INET, AF_INET6)) + self.assertEqual(conn.type, SOCK_STREAM) + # tcp4 + cons = thisproc.connections(kind='tcp4') + self.assertEqual(len(cons), 1) + self.assertEqual(cons[0].family, AF_INET) + self.assertEqual(cons[0].type, SOCK_STREAM) + # tcp6 + if supports_ipv6(): + cons = thisproc.connections(kind='tcp6') + self.assertEqual(len(cons), 1) + self.assertEqual(cons[0].family, AF_INET6) + self.assertEqual(cons[0].type, SOCK_STREAM) + # udp + cons = thisproc.connections(kind='udp') + self.assertEqual(len(cons), 2 if supports_ipv6() else 1) + for conn in cons: + self.assertIn(conn.family, (AF_INET, AF_INET6)) + self.assertEqual(conn.type, SOCK_DGRAM) + # udp4 + cons = thisproc.connections(kind='udp4') + self.assertEqual(len(cons), 1) + self.assertEqual(cons[0].family, AF_INET) + self.assertEqual(cons[0].type, SOCK_DGRAM) + # udp6 + if supports_ipv6(): + cons = thisproc.connections(kind='udp6') + self.assertEqual(len(cons), 1) + self.assertEqual(cons[0].family, AF_INET6) + self.assertEqual(cons[0].type, SOCK_DGRAM) + # inet + cons = thisproc.connections(kind='inet') + self.assertEqual(len(cons), 4 if supports_ipv6() else 2) + for conn in cons: + self.assertIn(conn.family, (AF_INET, AF_INET6)) + self.assertIn(conn.type, (SOCK_STREAM, SOCK_DGRAM)) + # inet6 + if supports_ipv6(): + cons = thisproc.connections(kind='inet6') + self.assertEqual(len(cons), 2) + for conn in cons: + self.assertEqual(conn.family, AF_INET6) + self.assertIn(conn.type, (SOCK_STREAM, SOCK_DGRAM)) + # Skipped on BSD becayse by default the Python process + # creates a UNIX socket to '/var/run/log'. + if HAS_CONNECTIONS_UNIX and not (FREEBSD or NETBSD): + cons = thisproc.connections(kind='unix') + self.assertEqual(len(cons), 3) + for conn in cons: + self.assertEqual(conn.family, AF_UNIX) + self.assertIn(conn.type, (SOCK_STREAM, SOCK_DGRAM)) + + +@unittest.skipIf(SKIP_SYSCONS, "requires root") +class TestSystemWideConnections(ConnectionTestCase): + """Tests for net_connections().""" + + def test_it(self): + def check(cons, families, types_): + for conn in cons: + self.assertIn(conn.family, families, msg=conn) + if conn.family != AF_UNIX: + self.assertIn(conn.type, types_, msg=conn) + check_connection_ntuple(conn) + + with create_sockets(): + from psutil._common import conn_tmap + for kind, groups in conn_tmap.items(): + # XXX: SunOS does not retrieve UNIX sockets. + if kind == 'unix' and not HAS_CONNECTIONS_UNIX: + continue + families, types_ = groups + cons = psutil.net_connections(kind) + self.assertEqual(len(cons), len(set(cons))) + check(cons, families, types_) + + @retry_on_failure() + def test_multi_sockets_procs(self): + # Creates multiple sub processes, each creating different + # sockets. For each process check that proc.connections() + # and net_connections() return the same results. + # This is done mainly to check whether net_connections()'s + # pid is properly set, see: + # https://github.com/giampaolo/psutil/issues/1013 + with create_sockets() as socks: + expected = len(socks) + pids = [] + times = 10 + fnames = [] + for i in range(times): + fname = self.get_testfn() + fnames.append(fname) + src = textwrap.dedent("""\ + import time, os + from psutil.tests import create_sockets + with create_sockets(): + with open(r'%s', 'w') as f: + f.write("hello") + time.sleep(60) + """ % fname) + sproc = self.pyrun(src) + pids.append(sproc.pid) + + # sync + for fname in fnames: + wait_for_file(fname) + + syscons = [x for x in psutil.net_connections(kind='all') if x.pid + in pids] + for pid in pids: + self.assertEqual(len([x for x in syscons if x.pid == pid]), + expected) + p = psutil.Process(pid) + self.assertEqual(len(p.connections('all')), expected) + + +class TestMisc(PsutilTestCase): + + def test_connection_constants(self): + ints = [] + strs = [] + for name in dir(psutil): + if name.startswith('CONN_'): + num = getattr(psutil, name) + str_ = str(num) + assert str_.isupper(), str_ + self.assertNotIn(str, strs) + self.assertNotIn(num, ints) + ints.append(num) + strs.append(str_) + if SUNOS: + psutil.CONN_IDLE + psutil.CONN_BOUND + if WINDOWS: + psutil.CONN_DELETE_TCB + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_contracts.py b/lib/psutil/tests/test_contracts.py new file mode 100644 index 0000000..3b806ee --- /dev/null +++ b/lib/psutil/tests/test_contracts.py @@ -0,0 +1,751 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Contracts tests. These tests mainly check API sanity in terms of +returned types and APIs availability. +Some of these are duplicates of tests test_system.py and test_process.py +""" + +import errno +import multiprocessing +import os +import platform +import signal +import stat +import sys +import time +import traceback +import unittest + +import psutil +from psutil import AIX +from psutil import BSD +from psutil import FREEBSD +from psutil import LINUX +from psutil import MACOS +from psutil import NETBSD +from psutil import OPENBSD +from psutil import OSX +from psutil import POSIX +from psutil import SUNOS +from psutil import WINDOWS +from psutil._compat import FileNotFoundError +from psutil._compat import long +from psutil._compat import range +from psutil._compat import unicode +from psutil.tests import APPVEYOR +from psutil.tests import CI_TESTING +from psutil.tests import GITHUB_ACTIONS +from psutil.tests import HAS_CPU_FREQ +from psutil.tests import HAS_NET_IO_COUNTERS +from psutil.tests import HAS_SENSORS_FANS +from psutil.tests import HAS_SENSORS_TEMPERATURES +from psutil.tests import PYPY +from psutil.tests import SKIP_SYSCONS +from psutil.tests import VALID_PROC_STATUSES +from psutil.tests import PsutilTestCase +from psutil.tests import check_connection_ntuple +from psutil.tests import create_sockets +from psutil.tests import enum +from psutil.tests import is_namedtuple +from psutil.tests import kernel_version +from psutil.tests import process_namespace +from psutil.tests import serialrun + + +# =================================================================== +# --- APIs availability +# =================================================================== + +# Make sure code reflects what doc promises in terms of APIs +# availability. + +class TestAvailConstantsAPIs(PsutilTestCase): + + def test_PROCFS_PATH(self): + self.assertEqual(hasattr(psutil, "PROCFS_PATH"), + LINUX or SUNOS or AIX) + + def test_win_priority(self): + ae = self.assertEqual + ae(hasattr(psutil, "ABOVE_NORMAL_PRIORITY_CLASS"), WINDOWS) + ae(hasattr(psutil, "BELOW_NORMAL_PRIORITY_CLASS"), WINDOWS) + ae(hasattr(psutil, "HIGH_PRIORITY_CLASS"), WINDOWS) + ae(hasattr(psutil, "IDLE_PRIORITY_CLASS"), WINDOWS) + ae(hasattr(psutil, "NORMAL_PRIORITY_CLASS"), WINDOWS) + ae(hasattr(psutil, "REALTIME_PRIORITY_CLASS"), WINDOWS) + + def test_linux_ioprio_linux(self): + ae = self.assertEqual + ae(hasattr(psutil, "IOPRIO_CLASS_NONE"), LINUX) + ae(hasattr(psutil, "IOPRIO_CLASS_RT"), LINUX) + ae(hasattr(psutil, "IOPRIO_CLASS_BE"), LINUX) + ae(hasattr(psutil, "IOPRIO_CLASS_IDLE"), LINUX) + + def test_linux_ioprio_windows(self): + ae = self.assertEqual + ae(hasattr(psutil, "IOPRIO_HIGH"), WINDOWS) + ae(hasattr(psutil, "IOPRIO_NORMAL"), WINDOWS) + ae(hasattr(psutil, "IOPRIO_LOW"), WINDOWS) + ae(hasattr(psutil, "IOPRIO_VERYLOW"), WINDOWS) + + @unittest.skipIf(GITHUB_ACTIONS and LINUX, + "unsupported on GITHUB_ACTIONS + LINUX") + def test_rlimit(self): + ae = self.assertEqual + ae(hasattr(psutil, "RLIM_INFINITY"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_AS"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_CORE"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_CPU"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_DATA"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_FSIZE"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_MEMLOCK"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_NOFILE"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_NPROC"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_RSS"), LINUX or FREEBSD) + ae(hasattr(psutil, "RLIMIT_STACK"), LINUX or FREEBSD) + + ae(hasattr(psutil, "RLIMIT_LOCKS"), LINUX) + if POSIX: + if kernel_version() >= (2, 6, 8): + ae(hasattr(psutil, "RLIMIT_MSGQUEUE"), LINUX) + if kernel_version() >= (2, 6, 12): + ae(hasattr(psutil, "RLIMIT_NICE"), LINUX) + if kernel_version() >= (2, 6, 12): + ae(hasattr(psutil, "RLIMIT_RTPRIO"), LINUX) + if kernel_version() >= (2, 6, 25): + ae(hasattr(psutil, "RLIMIT_RTTIME"), LINUX) + if kernel_version() >= (2, 6, 8): + ae(hasattr(psutil, "RLIMIT_SIGPENDING"), LINUX) + + ae(hasattr(psutil, "RLIMIT_SWAP"), FREEBSD) + ae(hasattr(psutil, "RLIMIT_SBSIZE"), FREEBSD) + ae(hasattr(psutil, "RLIMIT_NPTS"), FREEBSD) + + +class TestAvailSystemAPIs(PsutilTestCase): + + def test_win_service_iter(self): + self.assertEqual(hasattr(psutil, "win_service_iter"), WINDOWS) + + def test_win_service_get(self): + self.assertEqual(hasattr(psutil, "win_service_get"), WINDOWS) + + def test_cpu_freq(self): + self.assertEqual(hasattr(psutil, "cpu_freq"), + LINUX or MACOS or WINDOWS or FREEBSD or OPENBSD) + + def test_sensors_temperatures(self): + self.assertEqual( + hasattr(psutil, "sensors_temperatures"), LINUX or FREEBSD) + + def test_sensors_fans(self): + self.assertEqual(hasattr(psutil, "sensors_fans"), LINUX) + + def test_battery(self): + self.assertEqual(hasattr(psutil, "sensors_battery"), + LINUX or WINDOWS or FREEBSD or MACOS) + + +class TestAvailProcessAPIs(PsutilTestCase): + + def test_environ(self): + self.assertEqual(hasattr(psutil.Process, "environ"), + LINUX or MACOS or WINDOWS or AIX or SUNOS or + FREEBSD or OPENBSD or NETBSD) + + def test_uids(self): + self.assertEqual(hasattr(psutil.Process, "uids"), POSIX) + + def test_gids(self): + self.assertEqual(hasattr(psutil.Process, "uids"), POSIX) + + def test_terminal(self): + self.assertEqual(hasattr(psutil.Process, "terminal"), POSIX) + + def test_ionice(self): + self.assertEqual(hasattr(psutil.Process, "ionice"), LINUX or WINDOWS) + + @unittest.skipIf(GITHUB_ACTIONS and LINUX, + "unsupported on GITHUB_ACTIONS + LINUX") + def test_rlimit(self): + self.assertEqual(hasattr(psutil.Process, "rlimit"), LINUX or FREEBSD) + + def test_io_counters(self): + hasit = hasattr(psutil.Process, "io_counters") + self.assertEqual(hasit, False if MACOS or SUNOS else True) + + def test_num_fds(self): + self.assertEqual(hasattr(psutil.Process, "num_fds"), POSIX) + + def test_num_handles(self): + self.assertEqual(hasattr(psutil.Process, "num_handles"), WINDOWS) + + def test_cpu_affinity(self): + self.assertEqual(hasattr(psutil.Process, "cpu_affinity"), + LINUX or WINDOWS or FREEBSD) + + def test_cpu_num(self): + self.assertEqual(hasattr(psutil.Process, "cpu_num"), + LINUX or FREEBSD or SUNOS) + + def test_memory_maps(self): + hasit = hasattr(psutil.Process, "memory_maps") + self.assertEqual( + hasit, False if OPENBSD or NETBSD or AIX or MACOS else True) + + +# =================================================================== +# --- API types +# =================================================================== + + +class TestSystemAPITypes(PsutilTestCase): + """Check the return types of system related APIs. + Mainly we want to test we never return unicode on Python 2, see: + https://github.com/giampaolo/psutil/issues/1039 + """ + + @classmethod + def setUpClass(cls): + cls.proc = psutil.Process() + + def assert_ntuple_of_nums(self, nt, type_=float, gezero=True): + assert is_namedtuple(nt) + for n in nt: + self.assertIsInstance(n, type_) + if gezero: + self.assertGreaterEqual(n, 0) + + def test_cpu_times(self): + self.assert_ntuple_of_nums(psutil.cpu_times()) + for nt in psutil.cpu_times(percpu=True): + self.assert_ntuple_of_nums(nt) + + def test_cpu_percent(self): + self.assertIsInstance(psutil.cpu_percent(interval=None), float) + self.assertIsInstance(psutil.cpu_percent(interval=0.00001), float) + + def test_cpu_times_percent(self): + self.assert_ntuple_of_nums(psutil.cpu_times_percent(interval=None)) + self.assert_ntuple_of_nums(psutil.cpu_times_percent(interval=0.0001)) + + def test_cpu_count(self): + self.assertIsInstance(psutil.cpu_count(), int) + + # TODO: remove this once 1892 is fixed + @unittest.skipIf(MACOS and platform.machine() == 'arm64', + "skipped due to #1892") + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_cpu_freq(self): + if psutil.cpu_freq() is None: + raise self.skipTest("cpu_freq() returns None") + self.assert_ntuple_of_nums(psutil.cpu_freq(), type_=(float, int, long)) + + def test_disk_io_counters(self): + # Duplicate of test_system.py. Keep it anyway. + for k, v in psutil.disk_io_counters(perdisk=True).items(): + self.assertIsInstance(k, str) + self.assert_ntuple_of_nums(v, type_=(int, long)) + + def test_disk_partitions(self): + # Duplicate of test_system.py. Keep it anyway. + for disk in psutil.disk_partitions(): + self.assertIsInstance(disk.device, str) + self.assertIsInstance(disk.mountpoint, str) + self.assertIsInstance(disk.fstype, str) + self.assertIsInstance(disk.opts, str) + self.assertIsInstance(disk.maxfile, int) + self.assertIsInstance(disk.maxpath, int) + + @unittest.skipIf(SKIP_SYSCONS, "requires root") + def test_net_connections(self): + with create_sockets(): + ret = psutil.net_connections('all') + self.assertEqual(len(ret), len(set(ret))) + for conn in ret: + assert is_namedtuple(conn) + + def test_net_if_addrs(self): + # Duplicate of test_system.py. Keep it anyway. + for ifname, addrs in psutil.net_if_addrs().items(): + self.assertIsInstance(ifname, str) + for addr in addrs: + if enum is not None and not PYPY: + self.assertIsInstance(addr.family, enum.IntEnum) + else: + self.assertIsInstance(addr.family, int) + self.assertIsInstance(addr.address, str) + self.assertIsInstance(addr.netmask, (str, type(None))) + self.assertIsInstance(addr.broadcast, (str, type(None))) + + def test_net_if_stats(self): + # Duplicate of test_system.py. Keep it anyway. + for ifname, info in psutil.net_if_stats().items(): + self.assertIsInstance(ifname, str) + self.assertIsInstance(info.isup, bool) + if enum is not None: + self.assertIsInstance(info.duplex, enum.IntEnum) + else: + self.assertIsInstance(info.duplex, int) + self.assertIsInstance(info.speed, int) + self.assertIsInstance(info.mtu, int) + + @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') + def test_net_io_counters(self): + # Duplicate of test_system.py. Keep it anyway. + for ifname, _ in psutil.net_io_counters(pernic=True).items(): + self.assertIsInstance(ifname, str) + + @unittest.skipIf(not HAS_SENSORS_FANS, "not supported") + def test_sensors_fans(self): + # Duplicate of test_system.py. Keep it anyway. + for name, units in psutil.sensors_fans().items(): + self.assertIsInstance(name, str) + for unit in units: + self.assertIsInstance(unit.label, str) + self.assertIsInstance(unit.current, (float, int, type(None))) + + @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") + def test_sensors_temperatures(self): + # Duplicate of test_system.py. Keep it anyway. + for name, units in psutil.sensors_temperatures().items(): + self.assertIsInstance(name, str) + for unit in units: + self.assertIsInstance(unit.label, str) + self.assertIsInstance(unit.current, (float, int, type(None))) + self.assertIsInstance(unit.high, (float, int, type(None))) + self.assertIsInstance(unit.critical, (float, int, type(None))) + + def test_boot_time(self): + # Duplicate of test_system.py. Keep it anyway. + self.assertIsInstance(psutil.boot_time(), float) + + def test_users(self): + # Duplicate of test_system.py. Keep it anyway. + for user in psutil.users(): + self.assertIsInstance(user.name, str) + self.assertIsInstance(user.terminal, (str, type(None))) + self.assertIsInstance(user.host, (str, type(None))) + self.assertIsInstance(user.pid, (int, type(None))) + + +class TestProcessWaitType(PsutilTestCase): + + @unittest.skipIf(not POSIX, "not POSIX") + def test_negative_signal(self): + p = psutil.Process(self.spawn_testproc().pid) + p.terminate() + code = p.wait() + self.assertEqual(code, -signal.SIGTERM) + if enum is not None: + self.assertIsInstance(code, enum.IntEnum) + else: + self.assertIsInstance(code, int) + + +# =================================================================== +# --- Featch all processes test +# =================================================================== + + +def proc_info(pid): + tcase = PsutilTestCase() + + def check_exception(exc, proc, name, ppid): + tcase.assertEqual(exc.pid, pid) + tcase.assertEqual(exc.name, name) + if isinstance(exc, psutil.ZombieProcess): + if exc.ppid is not None: + tcase.assertGreaterEqual(exc.ppid, 0) + tcase.assertEqual(exc.ppid, ppid) + elif isinstance(exc, psutil.NoSuchProcess): + tcase.assertProcessGone(proc) + str(exc) + + def do_wait(): + if pid != 0: + try: + proc.wait(0) + except psutil.Error as exc: + check_exception(exc, proc, name, ppid) + + try: + proc = psutil.Process(pid) + d = proc.as_dict(['ppid', 'name']) + except psutil.NoSuchProcess: + return {} + + name, ppid = d['name'], d['ppid'] + info = {'pid': proc.pid} + ns = process_namespace(proc) + # We don't use oneshot() because in order not to fool + # check_exception() in case of NSP. + for fun, fun_name in ns.iter(ns.getters, clear_cache=False): + try: + info[fun_name] = fun() + except psutil.Error as exc: + check_exception(exc, proc, name, ppid) + continue + do_wait() + return info + + +@serialrun +class TestFetchAllProcesses(PsutilTestCase): + """Test which iterates over all running processes and performs + some sanity checks against Process API's returned values. + Uses a process pool to get info about all processes. + """ + + def setUp(self): + # Using a pool in a CI env may result in deadlock, see: + # https://github.com/giampaolo/psutil/issues/2104 + if not CI_TESTING: + self.pool = multiprocessing.Pool() + + def tearDown(self): + if not CI_TESTING: + self.pool.terminate() + self.pool.join() + + def iter_proc_info(self): + # Fixes "can't pickle <function proc_info>: it's not the + # same object as test_contracts.proc_info". + from psutil.tests.test_contracts import proc_info + + if not CI_TESTING: + return self.pool.imap_unordered(proc_info, psutil.pids()) + else: + ls = [] + for pid in psutil.pids(): + ls.append(proc_info(pid)) + return ls + + def test_all(self): + failures = [] + for info in self.iter_proc_info(): + for name, value in info.items(): + meth = getattr(self, name) + try: + meth(value, info) + except AssertionError: + s = '\n' + '=' * 70 + '\n' + s += "FAIL: test_%s pid=%s, ret=%s\n" % ( + name, info['pid'], repr(value)) + s += '-' * 70 + s += "\n%s" % traceback.format_exc() + s = "\n".join((" " * 4) + i for i in s.splitlines()) + s += '\n' + failures.append(s) + else: + if value not in (0, 0.0, [], None, '', {}): + assert value, value + if failures: + raise self.fail(''.join(failures)) + + def cmdline(self, ret, info): + self.assertIsInstance(ret, list) + for part in ret: + self.assertIsInstance(part, str) + + def exe(self, ret, info): + self.assertIsInstance(ret, (str, unicode, type(None))) + if not ret: + self.assertEqual(ret, '') + else: + if WINDOWS and not ret.endswith('.exe'): + return # May be "Registry", "MemCompression", ... + assert os.path.isabs(ret), ret + # Note: os.stat() may return False even if the file is there + # hence we skip the test, see: + # http://stackoverflow.com/questions/3112546/os-path-exists-lies + if POSIX and os.path.isfile(ret): + if hasattr(os, 'access') and hasattr(os, "X_OK"): + # XXX: may fail on MACOS + try: + assert os.access(ret, os.X_OK) + except AssertionError: + if os.path.exists(ret) and not CI_TESTING: + raise + + def pid(self, ret, info): + self.assertIsInstance(ret, int) + self.assertGreaterEqual(ret, 0) + + def ppid(self, ret, info): + self.assertIsInstance(ret, (int, long)) + self.assertGreaterEqual(ret, 0) + + def name(self, ret, info): + self.assertIsInstance(ret, (str, unicode)) + if APPVEYOR and not ret and info['status'] == 'stopped': + return + # on AIX, "<exiting>" processes don't have names + if not AIX: + assert ret + + def create_time(self, ret, info): + self.assertIsInstance(ret, float) + try: + self.assertGreaterEqual(ret, 0) + except AssertionError: + # XXX + if OPENBSD and info['status'] == psutil.STATUS_ZOMBIE: + pass + else: + raise + # this can't be taken for granted on all platforms + # self.assertGreaterEqual(ret, psutil.boot_time()) + # make sure returned value can be pretty printed + # with strftime + time.strftime("%Y %m %d %H:%M:%S", time.localtime(ret)) + + def uids(self, ret, info): + assert is_namedtuple(ret) + for uid in ret: + self.assertIsInstance(uid, int) + self.assertGreaterEqual(uid, 0) + + def gids(self, ret, info): + assert is_namedtuple(ret) + # note: testing all gids as above seems not to be reliable for + # gid == 30 (nodoby); not sure why. + for gid in ret: + self.assertIsInstance(gid, int) + if not MACOS and not NETBSD: + self.assertGreaterEqual(gid, 0) + + def username(self, ret, info): + self.assertIsInstance(ret, str) + assert ret + + def status(self, ret, info): + self.assertIsInstance(ret, str) + assert ret + self.assertNotEqual(ret, '?') # XXX + self.assertIn(ret, VALID_PROC_STATUSES) + + def io_counters(self, ret, info): + assert is_namedtuple(ret) + for field in ret: + self.assertIsInstance(field, (int, long)) + if field != -1: + self.assertGreaterEqual(field, 0) + + def ionice(self, ret, info): + if LINUX: + self.assertIsInstance(ret.ioclass, int) + self.assertIsInstance(ret.value, int) + self.assertGreaterEqual(ret.ioclass, 0) + self.assertGreaterEqual(ret.value, 0) + else: # Windows, Cygwin + choices = [ + psutil.IOPRIO_VERYLOW, + psutil.IOPRIO_LOW, + psutil.IOPRIO_NORMAL, + psutil.IOPRIO_HIGH] + self.assertIsInstance(ret, int) + self.assertGreaterEqual(ret, 0) + self.assertIn(ret, choices) + + def num_threads(self, ret, info): + self.assertIsInstance(ret, int) + if APPVEYOR and not ret and info['status'] == 'stopped': + return + self.assertGreaterEqual(ret, 1) + + def threads(self, ret, info): + self.assertIsInstance(ret, list) + for t in ret: + assert is_namedtuple(t) + self.assertGreaterEqual(t.id, 0) + self.assertGreaterEqual(t.user_time, 0) + self.assertGreaterEqual(t.system_time, 0) + for field in t: + self.assertIsInstance(field, (int, float)) + + def cpu_times(self, ret, info): + assert is_namedtuple(ret) + for n in ret: + self.assertIsInstance(n, float) + self.assertGreaterEqual(n, 0) + # TODO: check ntuple fields + + def cpu_percent(self, ret, info): + self.assertIsInstance(ret, float) + assert 0.0 <= ret <= 100.0, ret + + def cpu_num(self, ret, info): + self.assertIsInstance(ret, int) + if FREEBSD and ret == -1: + return + self.assertGreaterEqual(ret, 0) + if psutil.cpu_count() == 1: + self.assertEqual(ret, 0) + self.assertIn(ret, list(range(psutil.cpu_count()))) + + def memory_info(self, ret, info): + assert is_namedtuple(ret) + for value in ret: + self.assertIsInstance(value, (int, long)) + self.assertGreaterEqual(value, 0) + if WINDOWS: + self.assertGreaterEqual(ret.peak_wset, ret.wset) + self.assertGreaterEqual(ret.peak_paged_pool, ret.paged_pool) + self.assertGreaterEqual(ret.peak_nonpaged_pool, ret.nonpaged_pool) + self.assertGreaterEqual(ret.peak_pagefile, ret.pagefile) + + def memory_full_info(self, ret, info): + assert is_namedtuple(ret) + total = psutil.virtual_memory().total + for name in ret._fields: + value = getattr(ret, name) + self.assertIsInstance(value, (int, long)) + self.assertGreaterEqual(value, 0, msg=(name, value)) + if LINUX or OSX and name in ('vms', 'data'): + # On Linux there are processes (e.g. 'goa-daemon') whose + # VMS is incredibly high for some reason. + continue + self.assertLessEqual(value, total, msg=(name, value, total)) + + if LINUX: + self.assertGreaterEqual(ret.pss, ret.uss) + + def open_files(self, ret, info): + self.assertIsInstance(ret, list) + for f in ret: + self.assertIsInstance(f.fd, int) + self.assertIsInstance(f.path, str) + if WINDOWS: + self.assertEqual(f.fd, -1) + elif LINUX: + self.assertIsInstance(f.position, int) + self.assertIsInstance(f.mode, str) + self.assertIsInstance(f.flags, int) + self.assertGreaterEqual(f.position, 0) + self.assertIn(f.mode, ('r', 'w', 'a', 'r+', 'a+')) + self.assertGreater(f.flags, 0) + elif BSD and not f.path: + # XXX see: https://github.com/giampaolo/psutil/issues/595 + continue + assert os.path.isabs(f.path), f + try: + st = os.stat(f.path) + except FileNotFoundError: + pass + else: + assert stat.S_ISREG(st.st_mode), f + + def num_fds(self, ret, info): + self.assertIsInstance(ret, int) + self.assertGreaterEqual(ret, 0) + + def connections(self, ret, info): + with create_sockets(): + self.assertEqual(len(ret), len(set(ret))) + for conn in ret: + assert is_namedtuple(conn) + check_connection_ntuple(conn) + + def cwd(self, ret, info): + if ret: # 'ret' can be None or empty + self.assertIsInstance(ret, str) + assert os.path.isabs(ret), ret + try: + st = os.stat(ret) + except OSError as err: + if WINDOWS and err.errno in \ + psutil._psplatform.ACCESS_DENIED_SET: + pass + # directory has been removed in mean time + elif err.errno != errno.ENOENT: + raise + else: + assert stat.S_ISDIR(st.st_mode) + + def memory_percent(self, ret, info): + self.assertIsInstance(ret, float) + assert 0 <= ret <= 100, ret + + def is_running(self, ret, info): + self.assertIsInstance(ret, bool) + + def cpu_affinity(self, ret, info): + self.assertIsInstance(ret, list) + assert ret != [], ret + cpus = list(range(psutil.cpu_count())) + for n in ret: + self.assertIsInstance(n, int) + self.assertIn(n, cpus) + + def terminal(self, ret, info): + self.assertIsInstance(ret, (str, type(None))) + if ret is not None: + assert os.path.isabs(ret), ret + assert os.path.exists(ret), ret + + def memory_maps(self, ret, info): + for nt in ret: + self.assertIsInstance(nt.addr, str) + self.assertIsInstance(nt.perms, str) + self.assertIsInstance(nt.path, str) + for fname in nt._fields: + value = getattr(nt, fname) + if fname == 'path': + if not value.startswith(("[", "anon_inode:")): + assert os.path.isabs(nt.path), nt.path + # commented as on Linux we might get + # '/foo/bar (deleted)' + # assert os.path.exists(nt.path), nt.path + elif fname == 'addr': + assert value, repr(value) + elif fname == 'perms': + if not WINDOWS: + assert value, repr(value) + else: + self.assertIsInstance(value, (int, long)) + self.assertGreaterEqual(value, 0) + + def num_handles(self, ret, info): + self.assertIsInstance(ret, int) + self.assertGreaterEqual(ret, 0) + + def nice(self, ret, info): + self.assertIsInstance(ret, int) + if POSIX: + assert -20 <= ret <= 20, ret + else: + priorities = [getattr(psutil, x) for x in dir(psutil) + if x.endswith('_PRIORITY_CLASS')] + self.assertIn(ret, priorities) + if sys.version_info > (3, 4): + self.assertIsInstance(ret, enum.IntEnum) + else: + self.assertIsInstance(ret, int) + + def num_ctx_switches(self, ret, info): + assert is_namedtuple(ret) + for value in ret: + self.assertIsInstance(value, (int, long)) + self.assertGreaterEqual(value, 0) + + def rlimit(self, ret, info): + self.assertIsInstance(ret, tuple) + self.assertEqual(len(ret), 2) + self.assertGreaterEqual(ret[0], -1) + self.assertGreaterEqual(ret[1], -1) + + def environ(self, ret, info): + self.assertIsInstance(ret, dict) + for k, v in ret.items(): + self.assertIsInstance(k, str) + self.assertIsInstance(v, str) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_linux.py b/lib/psutil/tests/test_linux.py new file mode 100644 index 0000000..3e1afc4 --- /dev/null +++ b/lib/psutil/tests/test_linux.py @@ -0,0 +1,2286 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Linux specific tests.""" + +from __future__ import division + +import collections +import contextlib +import errno +import glob +import io +import os +import re +import shutil +import socket +import struct +import textwrap +import time +import unittest +import warnings + +import psutil +from psutil import LINUX +from psutil._compat import PY3 +from psutil._compat import FileNotFoundError +from psutil._compat import basestring +from psutil._compat import u +from psutil.tests import GITHUB_ACTIONS +from psutil.tests import GLOBAL_TIMEOUT +from psutil.tests import HAS_BATTERY +from psutil.tests import HAS_CPU_FREQ +from psutil.tests import HAS_GETLOADAVG +from psutil.tests import HAS_RLIMIT +from psutil.tests import PYPY +from psutil.tests import TOLERANCE_DISK_USAGE +from psutil.tests import TOLERANCE_SYS_MEM +from psutil.tests import PsutilTestCase +from psutil.tests import ThreadTask +from psutil.tests import call_until +from psutil.tests import mock +from psutil.tests import reload_module +from psutil.tests import retry_on_failure +from psutil.tests import safe_rmpath +from psutil.tests import sh +from psutil.tests import skip_on_not_implemented +from psutil.tests import which + + +if LINUX: + from psutil._pslinux import CLOCK_TICKS + from psutil._pslinux import RootFsDeviceFinder + from psutil._pslinux import calculate_avail_vmem + from psutil._pslinux import open_binary + + +HERE = os.path.abspath(os.path.dirname(__file__)) +SIOCGIFADDR = 0x8915 +SIOCGIFCONF = 0x8912 +SIOCGIFHWADDR = 0x8927 +SIOCGIFNETMASK = 0x891b +SIOCGIFBRDADDR = 0x8919 +if LINUX: + SECTOR_SIZE = 512 +EMPTY_TEMPERATURES = not glob.glob('/sys/class/hwmon/hwmon*') + + +# ===================================================================== +# --- utils +# ===================================================================== + + +def get_ipv4_address(ifname): + import fcntl + ifname = ifname[:15] + if PY3: + ifname = bytes(ifname, 'ascii') + s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) + with contextlib.closing(s): + return socket.inet_ntoa( + fcntl.ioctl(s.fileno(), + SIOCGIFADDR, + struct.pack('256s', ifname))[20:24]) + + +def get_ipv4_netmask(ifname): + import fcntl + ifname = ifname[:15] + if PY3: + ifname = bytes(ifname, 'ascii') + s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) + with contextlib.closing(s): + return socket.inet_ntoa( + fcntl.ioctl(s.fileno(), + SIOCGIFNETMASK, + struct.pack('256s', ifname))[20:24]) + + +def get_ipv4_broadcast(ifname): + import fcntl + ifname = ifname[:15] + if PY3: + ifname = bytes(ifname, 'ascii') + s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) + with contextlib.closing(s): + return socket.inet_ntoa( + fcntl.ioctl(s.fileno(), + SIOCGIFBRDADDR, + struct.pack('256s', ifname))[20:24]) + + +def get_ipv6_addresses(ifname): + with open("/proc/net/if_inet6", 'rt') as f: + all_fields = [] + for line in f.readlines(): + fields = line.split() + if fields[-1] == ifname: + all_fields.append(fields) + + if len(all_fields) == 0: + raise ValueError("could not find interface %r" % ifname) + + for i in range(0, len(all_fields)): + unformatted = all_fields[i][0] + groups = [] + for j in range(0, len(unformatted), 4): + groups.append(unformatted[j:j + 4]) + formatted = ":".join(groups) + packed = socket.inet_pton(socket.AF_INET6, formatted) + all_fields[i] = socket.inet_ntop(socket.AF_INET6, packed) + return all_fields + + +def get_mac_address(ifname): + import fcntl + ifname = ifname[:15] + if PY3: + ifname = bytes(ifname, 'ascii') + s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM) + with contextlib.closing(s): + info = fcntl.ioctl( + s.fileno(), SIOCGIFHWADDR, struct.pack('256s', ifname)) + if PY3: + def ord(x): + return x + else: + import __builtin__ + ord = __builtin__.ord + return ''.join(['%02x:' % ord(char) for char in info[18:24]])[:-1] + + +def free_swap(): + """Parse 'free' cmd and return swap memory's s total, used and free + values. + """ + out = sh(["free", "-b"], env={"LANG": "C.UTF-8"}) + lines = out.split('\n') + for line in lines: + if line.startswith('Swap'): + _, total, used, free = line.split() + nt = collections.namedtuple('free', 'total used free') + return nt(int(total), int(used), int(free)) + raise ValueError( + "can't find 'Swap' in 'free' output:\n%s" % '\n'.join(lines)) + + +def free_physmem(): + """Parse 'free' cmd and return physical memory's total, used + and free values. + """ + # Note: free can have 2 different formats, invalidating 'shared' + # and 'cached' memory which may have different positions so we + # do not return them. + # https://github.com/giampaolo/psutil/issues/538#issuecomment-57059946 + out = sh(["free", "-b"], env={"LANG": "C.UTF-8"}) + lines = out.split('\n') + for line in lines: + if line.startswith('Mem'): + total, used, free, shared = \ + [int(x) for x in line.split()[1:5]] + nt = collections.namedtuple( + 'free', 'total used free shared output') + return nt(total, used, free, shared, out) + raise ValueError( + "can't find 'Mem' in 'free' output:\n%s" % '\n'.join(lines)) + + +def vmstat(stat): + out = sh(["vmstat", "-s"], env={"LANG": "C.UTF-8"}) + for line in out.split("\n"): + line = line.strip() + if stat in line: + return int(line.split(' ')[0]) + raise ValueError("can't find %r in 'vmstat' output" % stat) + + +def get_free_version_info(): + out = sh(["free", "-V"]).strip() + if 'UNKNOWN' in out: + raise unittest.SkipTest("can't determine free version") + return tuple(map(int, out.split()[-1].split('.'))) + + +@contextlib.contextmanager +def mock_open_content(for_path, content): + """Mock open() builtin and forces it to return a certain `content` + on read() if the path being opened matches `for_path`. + """ + def open_mock(name, *args, **kwargs): + if name == for_path: + if PY3: + if isinstance(content, basestring): + return io.StringIO(content) + else: + return io.BytesIO(content) + else: + return io.BytesIO(content) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, create=True, side_effect=open_mock) as m: + yield m + + +@contextlib.contextmanager +def mock_open_exception(for_path, exc): + """Mock open() builtin and raises `exc` if the path being opened + matches `for_path`. + """ + def open_mock(name, *args, **kwargs): + if name == for_path: + raise exc + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, create=True, side_effect=open_mock) as m: + yield m + + +# ===================================================================== +# --- system virtual memory +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemVirtualMemory(PsutilTestCase): + + def test_total(self): + # free_value = free_physmem().total + # psutil_value = psutil.virtual_memory().total + # self.assertEqual(free_value, psutil_value) + vmstat_value = vmstat('total memory') * 1024 + psutil_value = psutil.virtual_memory().total + self.assertAlmostEqual( + vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_used(self): + # Older versions of procps used slab memory to calculate used memory. + # This got changed in: + # https://gitlab.com/procps-ng/procps/commit/ + # 05d751c4f076a2f0118b914c5e51cfbb4762ad8e + if get_free_version_info() < (3, 3, 12): + raise self.skipTest("old free version") + free = free_physmem() + free_value = free.used + psutil_value = psutil.virtual_memory().used + self.assertAlmostEqual( + free_value, psutil_value, delta=TOLERANCE_SYS_MEM, + msg='%s %s \n%s' % (free_value, psutil_value, free.output)) + + @retry_on_failure() + def test_free(self): + vmstat_value = vmstat('free memory') * 1024 + psutil_value = psutil.virtual_memory().free + self.assertAlmostEqual( + vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_buffers(self): + vmstat_value = vmstat('buffer memory') * 1024 + psutil_value = psutil.virtual_memory().buffers + self.assertAlmostEqual( + vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_active(self): + vmstat_value = vmstat('active memory') * 1024 + psutil_value = psutil.virtual_memory().active + self.assertAlmostEqual( + vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_inactive(self): + vmstat_value = vmstat('inactive memory') * 1024 + psutil_value = psutil.virtual_memory().inactive + self.assertAlmostEqual( + vmstat_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_shared(self): + free = free_physmem() + free_value = free.shared + if free_value == 0: + raise unittest.SkipTest("free does not support 'shared' column") + psutil_value = psutil.virtual_memory().shared + self.assertAlmostEqual( + free_value, psutil_value, delta=TOLERANCE_SYS_MEM, + msg='%s %s \n%s' % (free_value, psutil_value, free.output)) + + @retry_on_failure() + def test_available(self): + # "free" output format has changed at some point: + # https://github.com/giampaolo/psutil/issues/538#issuecomment-147192098 + out = sh(["free", "-b"]) + lines = out.split('\n') + if 'available' not in lines[0]: + raise unittest.SkipTest("free does not support 'available' column") + else: + free_value = int(lines[1].split()[-1]) + psutil_value = psutil.virtual_memory().available + self.assertAlmostEqual( + free_value, psutil_value, delta=TOLERANCE_SYS_MEM, + msg='%s %s \n%s' % (free_value, psutil_value, out)) + + def test_warnings_on_misses(self): + # Emulate a case where /proc/meminfo provides few info. + # psutil is supposed to set the missing fields to 0 and + # raise a warning. + with mock_open_content( + '/proc/meminfo', + textwrap.dedent("""\ + Active(anon): 6145416 kB + Active(file): 2950064 kB + Inactive(anon): 574764 kB + Inactive(file): 1567648 kB + MemAvailable: -1 kB + MemFree: 2057400 kB + MemTotal: 16325648 kB + SReclaimable: 346648 kB + """).encode()) as m: + with warnings.catch_warnings(record=True) as ws: + warnings.simplefilter("always") + ret = psutil.virtual_memory() + assert m.called + self.assertEqual(len(ws), 1) + w = ws[0] + assert w.filename.endswith('psutil/_pslinux.py') + self.assertIn( + "memory stats couldn't be determined", str(w.message)) + self.assertIn("cached", str(w.message)) + self.assertIn("shared", str(w.message)) + self.assertIn("active", str(w.message)) + self.assertIn("inactive", str(w.message)) + self.assertIn("buffers", str(w.message)) + self.assertIn("available", str(w.message)) + self.assertEqual(ret.cached, 0) + self.assertEqual(ret.active, 0) + self.assertEqual(ret.inactive, 0) + self.assertEqual(ret.shared, 0) + self.assertEqual(ret.buffers, 0) + self.assertEqual(ret.available, 0) + self.assertEqual(ret.slab, 0) + + @retry_on_failure() + def test_avail_old_percent(self): + # Make sure that our calculation of avail mem for old kernels + # is off by max 15%. + mems = {} + with open_binary('/proc/meminfo') as f: + for line in f: + fields = line.split() + mems[fields[0]] = int(fields[1]) * 1024 + + a = calculate_avail_vmem(mems) + if b'MemAvailable:' in mems: + b = mems[b'MemAvailable:'] + diff_percent = abs(a - b) / a * 100 + self.assertLess(diff_percent, 15) + + def test_avail_old_comes_from_kernel(self): + # Make sure "MemAvailable:" coluimn is used instead of relying + # on our internal algorithm to calculate avail mem. + with mock_open_content( + '/proc/meminfo', + textwrap.dedent("""\ + Active: 9444728 kB + Active(anon): 6145416 kB + Active(file): 2950064 kB + Buffers: 287952 kB + Cached: 4818144 kB + Inactive(file): 1578132 kB + Inactive(anon): 574764 kB + Inactive(file): 1567648 kB + MemAvailable: 6574984 kB + MemFree: 2057400 kB + MemTotal: 16325648 kB + Shmem: 577588 kB + SReclaimable: 346648 kB + """).encode()) as m: + with warnings.catch_warnings(record=True) as ws: + ret = psutil.virtual_memory() + assert m.called + self.assertEqual(ret.available, 6574984 * 1024) + w = ws[0] + self.assertIn( + "inactive memory stats couldn't be determined", str(w.message)) + + def test_avail_old_missing_fields(self): + # Remove Active(file), Inactive(file) and SReclaimable + # from /proc/meminfo and make sure the fallback is used + # (free + cached), + with mock_open_content( + "/proc/meminfo", + textwrap.dedent("""\ + Active: 9444728 kB + Active(anon): 6145416 kB + Buffers: 287952 kB + Cached: 4818144 kB + Inactive(file): 1578132 kB + Inactive(anon): 574764 kB + MemFree: 2057400 kB + MemTotal: 16325648 kB + Shmem: 577588 kB + """).encode()) as m: + with warnings.catch_warnings(record=True) as ws: + ret = psutil.virtual_memory() + assert m.called + self.assertEqual(ret.available, 2057400 * 1024 + 4818144 * 1024) + w = ws[0] + self.assertIn( + "inactive memory stats couldn't be determined", str(w.message)) + + def test_avail_old_missing_zoneinfo(self): + # Remove /proc/zoneinfo file. Make sure fallback is used + # (free + cached). + with mock_open_content( + "/proc/meminfo", + textwrap.dedent("""\ + Active: 9444728 kB + Active(anon): 6145416 kB + Active(file): 2950064 kB + Buffers: 287952 kB + Cached: 4818144 kB + Inactive(file): 1578132 kB + Inactive(anon): 574764 kB + Inactive(file): 1567648 kB + MemFree: 2057400 kB + MemTotal: 16325648 kB + Shmem: 577588 kB + SReclaimable: 346648 kB + """).encode()): + with mock_open_exception( + "/proc/zoneinfo", + IOError(errno.ENOENT, 'no such file or directory')): + with warnings.catch_warnings(record=True) as ws: + ret = psutil.virtual_memory() + self.assertEqual( + ret.available, 2057400 * 1024 + 4818144 * 1024) + w = ws[0] + self.assertIn( + "inactive memory stats couldn't be determined", + str(w.message)) + + def test_virtual_memory_mocked(self): + # Emulate /proc/meminfo because neither vmstat nor free return slab. + def open_mock(name, *args, **kwargs): + if name == '/proc/meminfo': + return io.BytesIO(textwrap.dedent("""\ + MemTotal: 100 kB + MemFree: 2 kB + MemAvailable: 3 kB + Buffers: 4 kB + Cached: 5 kB + SwapCached: 6 kB + Active: 7 kB + Inactive: 8 kB + Active(anon): 9 kB + Inactive(anon): 10 kB + Active(file): 11 kB + Inactive(file): 12 kB + Unevictable: 13 kB + Mlocked: 14 kB + SwapTotal: 15 kB + SwapFree: 16 kB + Dirty: 17 kB + Writeback: 18 kB + AnonPages: 19 kB + Mapped: 20 kB + Shmem: 21 kB + Slab: 22 kB + SReclaimable: 23 kB + SUnreclaim: 24 kB + KernelStack: 25 kB + PageTables: 26 kB + NFS_Unstable: 27 kB + Bounce: 28 kB + WritebackTmp: 29 kB + CommitLimit: 30 kB + Committed_AS: 31 kB + VmallocTotal: 32 kB + VmallocUsed: 33 kB + VmallocChunk: 34 kB + HardwareCorrupted: 35 kB + AnonHugePages: 36 kB + ShmemHugePages: 37 kB + ShmemPmdMapped: 38 kB + CmaTotal: 39 kB + CmaFree: 40 kB + HugePages_Total: 41 kB + HugePages_Free: 42 kB + HugePages_Rsvd: 43 kB + HugePages_Surp: 44 kB + Hugepagesize: 45 kB + DirectMap46k: 46 kB + DirectMap47M: 47 kB + DirectMap48G: 48 kB + """).encode()) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, create=True, side_effect=open_mock) as m: + mem = psutil.virtual_memory() + assert m.called + self.assertEqual(mem.total, 100 * 1024) + self.assertEqual(mem.free, 2 * 1024) + self.assertEqual(mem.buffers, 4 * 1024) + # cached mem also includes reclaimable memory + self.assertEqual(mem.cached, (5 + 23) * 1024) + self.assertEqual(mem.shared, 21 * 1024) + self.assertEqual(mem.active, 7 * 1024) + self.assertEqual(mem.inactive, 8 * 1024) + self.assertEqual(mem.slab, 22 * 1024) + self.assertEqual(mem.available, 3 * 1024) + + +# ===================================================================== +# --- system swap memory +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemSwapMemory(PsutilTestCase): + + @staticmethod + def meminfo_has_swap_info(): + """Return True if /proc/meminfo provides swap metrics.""" + with open("/proc/meminfo") as f: + data = f.read() + return 'SwapTotal:' in data and 'SwapFree:' in data + + def test_total(self): + free_value = free_swap().total + psutil_value = psutil.swap_memory().total + return self.assertAlmostEqual( + free_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_used(self): + free_value = free_swap().used + psutil_value = psutil.swap_memory().used + return self.assertAlmostEqual( + free_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_free(self): + free_value = free_swap().free + psutil_value = psutil.swap_memory().free + return self.assertAlmostEqual( + free_value, psutil_value, delta=TOLERANCE_SYS_MEM) + + def test_missing_sin_sout(self): + with mock.patch('psutil._common.open', create=True) as m: + with warnings.catch_warnings(record=True) as ws: + warnings.simplefilter("always") + ret = psutil.swap_memory() + assert m.called + self.assertEqual(len(ws), 1) + w = ws[0] + assert w.filename.endswith('psutil/_pslinux.py') + self.assertIn( + "'sin' and 'sout' swap memory stats couldn't " + "be determined", str(w.message)) + self.assertEqual(ret.sin, 0) + self.assertEqual(ret.sout, 0) + + def test_no_vmstat_mocked(self): + # see https://github.com/giampaolo/psutil/issues/722 + with mock_open_exception( + "/proc/vmstat", + IOError(errno.ENOENT, 'no such file or directory')) as m: + with warnings.catch_warnings(record=True) as ws: + warnings.simplefilter("always") + ret = psutil.swap_memory() + assert m.called + self.assertEqual(len(ws), 1) + w = ws[0] + assert w.filename.endswith('psutil/_pslinux.py') + self.assertIn( + "'sin' and 'sout' swap memory stats couldn't " + "be determined and were set to 0", + str(w.message)) + self.assertEqual(ret.sin, 0) + self.assertEqual(ret.sout, 0) + + def test_meminfo_against_sysinfo(self): + # Make sure the content of /proc/meminfo about swap memory + # matches sysinfo() syscall, see: + # https://github.com/giampaolo/psutil/issues/1015 + if not self.meminfo_has_swap_info(): + return unittest.skip("/proc/meminfo has no swap metrics") + with mock.patch('psutil._pslinux.cext.linux_sysinfo') as m: + swap = psutil.swap_memory() + assert not m.called + import psutil._psutil_linux as cext + _, _, _, _, total, free, unit_multiplier = cext.linux_sysinfo() + total *= unit_multiplier + free *= unit_multiplier + self.assertEqual(swap.total, total) + self.assertAlmostEqual(swap.free, free, delta=TOLERANCE_SYS_MEM) + + def test_emulate_meminfo_has_no_metrics(self): + # Emulate a case where /proc/meminfo provides no swap metrics + # in which case sysinfo() syscall is supposed to be used + # as a fallback. + with mock_open_content("/proc/meminfo", b"") as m: + psutil.swap_memory() + assert m.called + + +# ===================================================================== +# --- system CPU +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemCPUTimes(PsutilTestCase): + + def test_fields(self): + fields = psutil.cpu_times()._fields + kernel_ver = re.findall(r'\d+\.\d+\.\d+', os.uname()[2])[0] + kernel_ver_info = tuple(map(int, kernel_ver.split('.'))) + if kernel_ver_info >= (2, 6, 11): + self.assertIn('steal', fields) + else: + self.assertNotIn('steal', fields) + if kernel_ver_info >= (2, 6, 24): + self.assertIn('guest', fields) + else: + self.assertNotIn('guest', fields) + if kernel_ver_info >= (3, 2, 0): + self.assertIn('guest_nice', fields) + else: + self.assertNotIn('guest_nice', fields) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemCPUCountLogical(PsutilTestCase): + + @unittest.skipIf(not os.path.exists("/sys/devices/system/cpu/online"), + "/sys/devices/system/cpu/online does not exist") + def test_against_sysdev_cpu_online(self): + with open("/sys/devices/system/cpu/online") as f: + value = f.read().strip() + if "-" in str(value): + value = int(value.split('-')[1]) + 1 + self.assertEqual(psutil.cpu_count(), value) + + @unittest.skipIf(not os.path.exists("/sys/devices/system/cpu"), + "/sys/devices/system/cpu does not exist") + def test_against_sysdev_cpu_num(self): + ls = os.listdir("/sys/devices/system/cpu") + count = len([x for x in ls if re.search(r"cpu\d+$", x) is not None]) + self.assertEqual(psutil.cpu_count(), count) + + @unittest.skipIf(not which("nproc"), "nproc utility not available") + def test_against_nproc(self): + num = int(sh("nproc --all")) + self.assertEqual(psutil.cpu_count(logical=True), num) + + @unittest.skipIf(not which("lscpu"), "lscpu utility not available") + def test_against_lscpu(self): + out = sh("lscpu -p") + num = len([x for x in out.split('\n') if not x.startswith('#')]) + self.assertEqual(psutil.cpu_count(logical=True), num) + + def test_emulate_fallbacks(self): + import psutil._pslinux + original = psutil._pslinux.cpu_count_logical() + # Here we want to mock os.sysconf("SC_NPROCESSORS_ONLN") in + # order to cause the parsing of /proc/cpuinfo and /proc/stat. + with mock.patch( + 'psutil._pslinux.os.sysconf', side_effect=ValueError) as m: + self.assertEqual(psutil._pslinux.cpu_count_logical(), original) + assert m.called + + # Let's have open() return empty data and make sure None is + # returned ('cause we mimic os.cpu_count()). + with mock.patch('psutil._common.open', create=True) as m: + self.assertIsNone(psutil._pslinux.cpu_count_logical()) + self.assertEqual(m.call_count, 2) + # /proc/stat should be the last one + self.assertEqual(m.call_args[0][0], '/proc/stat') + + # Let's push this a bit further and make sure /proc/cpuinfo + # parsing works as expected. + with open('/proc/cpuinfo', 'rb') as f: + cpuinfo_data = f.read() + fake_file = io.BytesIO(cpuinfo_data) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m: + self.assertEqual(psutil._pslinux.cpu_count_logical(), original) + + # Finally, let's make /proc/cpuinfo return meaningless data; + # this way we'll fall back on relying on /proc/stat + with mock_open_content('/proc/cpuinfo', b"") as m: + self.assertEqual(psutil._pslinux.cpu_count_logical(), original) + m.called + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemCPUCountCores(PsutilTestCase): + + @unittest.skipIf(not which("lscpu"), "lscpu utility not available") + def test_against_lscpu(self): + out = sh("lscpu -p") + core_ids = set() + for line in out.split('\n'): + if not line.startswith('#'): + fields = line.split(',') + core_ids.add(fields[1]) + self.assertEqual(psutil.cpu_count(logical=False), len(core_ids)) + + def test_method_2(self): + meth_1 = psutil._pslinux.cpu_count_cores() + with mock.patch('glob.glob', return_value=[]) as m: + meth_2 = psutil._pslinux.cpu_count_cores() + assert m.called + if meth_1 is not None: + self.assertEqual(meth_1, meth_2) + + def test_emulate_none(self): + with mock.patch('glob.glob', return_value=[]) as m1: + with mock.patch('psutil._common.open', create=True) as m2: + self.assertIsNone(psutil._pslinux.cpu_count_cores()) + assert m1.called + assert m2.called + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemCPUFrequency(PsutilTestCase): + + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_emulate_use_second_file(self): + # https://github.com/giampaolo/psutil/issues/981 + def path_exists_mock(path): + if path.startswith("/sys/devices/system/cpu/cpufreq/policy"): + return False + else: + return orig_exists(path) + + orig_exists = os.path.exists + with mock.patch("os.path.exists", side_effect=path_exists_mock, + create=True): + assert psutil.cpu_freq() + + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_emulate_use_cpuinfo(self): + # Emulate a case where /sys/devices/system/cpu/cpufreq* does not + # exist and /proc/cpuinfo is used instead. + def path_exists_mock(path): + if path.startswith('/sys/devices/system/cpu/'): + return False + else: + return os_path_exists(path) + + os_path_exists = os.path.exists + try: + with mock.patch("os.path.exists", side_effect=path_exists_mock): + reload_module(psutil._pslinux) + ret = psutil.cpu_freq() + assert ret + self.assertEqual(ret.max, 0.0) + self.assertEqual(ret.min, 0.0) + for freq in psutil.cpu_freq(percpu=True): + self.assertEqual(ret.max, 0.0) + self.assertEqual(ret.min, 0.0) + finally: + reload_module(psutil._pslinux) + reload_module(psutil) + + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_emulate_data(self): + def open_mock(name, *args, **kwargs): + if (name.endswith('/scaling_cur_freq') and + name.startswith("/sys/devices/system/cpu/cpufreq/policy")): + return io.BytesIO(b"500000") + elif (name.endswith('/scaling_min_freq') and + name.startswith("/sys/devices/system/cpu/cpufreq/policy")): + return io.BytesIO(b"600000") + elif (name.endswith('/scaling_max_freq') and + name.startswith("/sys/devices/system/cpu/cpufreq/policy")): + return io.BytesIO(b"700000") + elif name == '/proc/cpuinfo': + return io.BytesIO(b"cpu MHz : 500") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + with mock.patch( + 'os.path.exists', return_value=True): + freq = psutil.cpu_freq() + self.assertEqual(freq.current, 500.0) + # when /proc/cpuinfo is used min and max frequencies are not + # available and are set to 0. + if freq.min != 0.0: + self.assertEqual(freq.min, 600.0) + if freq.max != 0.0: + self.assertEqual(freq.max, 700.0) + + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_emulate_multi_cpu(self): + def open_mock(name, *args, **kwargs): + n = name + if (n.endswith('/scaling_cur_freq') and + n.startswith("/sys/devices/system/cpu/cpufreq/policy0")): + return io.BytesIO(b"100000") + elif (n.endswith('/scaling_min_freq') and + n.startswith("/sys/devices/system/cpu/cpufreq/policy0")): + return io.BytesIO(b"200000") + elif (n.endswith('/scaling_max_freq') and + n.startswith("/sys/devices/system/cpu/cpufreq/policy0")): + return io.BytesIO(b"300000") + elif (n.endswith('/scaling_cur_freq') and + n.startswith("/sys/devices/system/cpu/cpufreq/policy1")): + return io.BytesIO(b"400000") + elif (n.endswith('/scaling_min_freq') and + n.startswith("/sys/devices/system/cpu/cpufreq/policy1")): + return io.BytesIO(b"500000") + elif (n.endswith('/scaling_max_freq') and + n.startswith("/sys/devices/system/cpu/cpufreq/policy1")): + return io.BytesIO(b"600000") + elif name == '/proc/cpuinfo': + return io.BytesIO(b"cpu MHz : 100\n" + b"cpu MHz : 400") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + with mock.patch('os.path.exists', return_value=True): + with mock.patch('psutil._pslinux.cpu_count_logical', + return_value=2): + freq = psutil.cpu_freq(percpu=True) + self.assertEqual(freq[0].current, 100.0) + if freq[0].min != 0.0: + self.assertEqual(freq[0].min, 200.0) + if freq[0].max != 0.0: + self.assertEqual(freq[0].max, 300.0) + self.assertEqual(freq[1].current, 400.0) + if freq[1].min != 0.0: + self.assertEqual(freq[1].min, 500.0) + if freq[1].max != 0.0: + self.assertEqual(freq[1].max, 600.0) + + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_emulate_no_scaling_cur_freq_file(self): + # See: https://github.com/giampaolo/psutil/issues/1071 + def open_mock(name, *args, **kwargs): + if name.endswith('/scaling_cur_freq'): + raise IOError(errno.ENOENT, "") + elif name.endswith('/cpuinfo_cur_freq'): + return io.BytesIO(b"200000") + elif name == '/proc/cpuinfo': + return io.BytesIO(b"cpu MHz : 200") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + with mock.patch('os.path.exists', return_value=True): + with mock.patch('psutil._pslinux.cpu_count_logical', + return_value=1): + freq = psutil.cpu_freq() + self.assertEqual(freq.current, 200) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemCPUStats(PsutilTestCase): + + def test_ctx_switches(self): + vmstat_value = vmstat("context switches") + psutil_value = psutil.cpu_stats().ctx_switches + self.assertAlmostEqual(vmstat_value, psutil_value, delta=500) + + def test_interrupts(self): + vmstat_value = vmstat("interrupts") + psutil_value = psutil.cpu_stats().interrupts + self.assertAlmostEqual(vmstat_value, psutil_value, delta=500) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestLoadAvg(PsutilTestCase): + + @unittest.skipIf(not HAS_GETLOADAVG, "not supported") + def test_getloadavg(self): + psutil_value = psutil.getloadavg() + with open("/proc/loadavg", "r") as f: + proc_value = f.read().split() + + self.assertAlmostEqual(float(proc_value[0]), psutil_value[0], delta=1) + self.assertAlmostEqual(float(proc_value[1]), psutil_value[1], delta=1) + self.assertAlmostEqual(float(proc_value[2]), psutil_value[2], delta=1) + + +# ===================================================================== +# --- system network +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemNetIfAddrs(PsutilTestCase): + + def test_ips(self): + for name, addrs in psutil.net_if_addrs().items(): + for addr in addrs: + if addr.family == psutil.AF_LINK: + self.assertEqual(addr.address, get_mac_address(name)) + elif addr.family == socket.AF_INET: + self.assertEqual(addr.address, get_ipv4_address(name)) + self.assertEqual(addr.netmask, get_ipv4_netmask(name)) + if addr.broadcast is not None: + self.assertEqual(addr.broadcast, + get_ipv4_broadcast(name)) + else: + self.assertEqual(get_ipv4_broadcast(name), '0.0.0.0') + elif addr.family == socket.AF_INET6: + # IPv6 addresses can have a percent symbol at the end. + # E.g. these 2 are equivalent: + # "fe80::1ff:fe23:4567:890a" + # "fe80::1ff:fe23:4567:890a%eth0" + # That is the "zone id" portion, which usually is the name + # of the network interface. + address = addr.address.split('%')[0] + self.assertIn(address, get_ipv6_addresses(name)) + + # XXX - not reliable when having virtual NICs installed by Docker. + # @unittest.skipIf(not which('ip'), "'ip' utility not available") + # def test_net_if_names(self): + # out = sh("ip addr").strip() + # nics = [x for x in psutil.net_if_addrs().keys() if ':' not in x] + # found = 0 + # for line in out.split('\n'): + # line = line.strip() + # if re.search(r"^\d+:", line): + # found += 1 + # name = line.split(':')[1].strip() + # self.assertIn(name, nics) + # self.assertEqual(len(nics), found, msg="%s\n---\n%s" % ( + # pprint.pformat(nics), out)) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemNetIfStats(PsutilTestCase): + + @unittest.skipIf(not which("ifconfig"), "ifconfig utility not available") + def test_against_ifconfig(self): + for name, stats in psutil.net_if_stats().items(): + try: + out = sh("ifconfig %s" % name) + except RuntimeError: + pass + else: + self.assertEqual(stats.isup, 'RUNNING' in out, msg=out) + self.assertEqual(stats.mtu, + int(re.findall(r'(?i)MTU[: ](\d+)', out)[0])) + + def test_mtu(self): + for name, stats in psutil.net_if_stats().items(): + with open("/sys/class/net/%s/mtu" % name, "rt") as f: + self.assertEqual(stats.mtu, int(f.read().strip())) + + @unittest.skipIf(not which("ifconfig"), "ifconfig utility not available") + def test_flags(self): + # first line looks like this: + # "eth0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500" + matches_found = 0 + for name, stats in psutil.net_if_stats().items(): + try: + out = sh("ifconfig %s" % name) + except RuntimeError: + pass + else: + match = re.search(r"flags=(\d+)?<(.*?)>", out) + if match and len(match.groups()) >= 2: + matches_found += 1 + ifconfig_flags = set(match.group(2).lower().split(",")) + psutil_flags = set(stats.flags.split(",")) + self.assertEqual(ifconfig_flags, psutil_flags) + else: + # ifconfig has a different output on CentOS 6 + # let's try that + match = re.search(r"(.*) MTU:(\d+) Metric:(\d+)", out) + if match and len(match.groups()) >= 3: + matches_found += 1 + ifconfig_flags = set(match.group(1).lower().split()) + psutil_flags = set(stats.flags.split(",")) + self.assertEqual(ifconfig_flags, psutil_flags) + + if not matches_found: + raise self.fail("no matches were found") + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemNetIOCounters(PsutilTestCase): + + @unittest.skipIf(not which("ifconfig"), "ifconfig utility not available") + @retry_on_failure() + def test_against_ifconfig(self): + def ifconfig(nic): + ret = {} + out = sh("ifconfig %s" % name) + ret['packets_recv'] = int( + re.findall(r'RX packets[: ](\d+)', out)[0]) + ret['packets_sent'] = int( + re.findall(r'TX packets[: ](\d+)', out)[0]) + ret['errin'] = int(re.findall(r'errors[: ](\d+)', out)[0]) + ret['errout'] = int(re.findall(r'errors[: ](\d+)', out)[1]) + ret['dropin'] = int(re.findall(r'dropped[: ](\d+)', out)[0]) + ret['dropout'] = int(re.findall(r'dropped[: ](\d+)', out)[1]) + ret['bytes_recv'] = int( + re.findall(r'RX (?:packets \d+ +)?bytes[: ](\d+)', out)[0]) + ret['bytes_sent'] = int( + re.findall(r'TX (?:packets \d+ +)?bytes[: ](\d+)', out)[0]) + return ret + + nio = psutil.net_io_counters(pernic=True, nowrap=False) + for name, stats in nio.items(): + try: + ifconfig_ret = ifconfig(name) + except RuntimeError: + continue + self.assertAlmostEqual( + stats.bytes_recv, ifconfig_ret['bytes_recv'], delta=1024 * 5) + self.assertAlmostEqual( + stats.bytes_sent, ifconfig_ret['bytes_sent'], delta=1024 * 5) + self.assertAlmostEqual( + stats.packets_recv, ifconfig_ret['packets_recv'], delta=1024) + self.assertAlmostEqual( + stats.packets_sent, ifconfig_ret['packets_sent'], delta=1024) + self.assertAlmostEqual( + stats.errin, ifconfig_ret['errin'], delta=10) + self.assertAlmostEqual( + stats.errout, ifconfig_ret['errout'], delta=10) + self.assertAlmostEqual( + stats.dropin, ifconfig_ret['dropin'], delta=10) + self.assertAlmostEqual( + stats.dropout, ifconfig_ret['dropout'], delta=10) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemNetConnections(PsutilTestCase): + + @mock.patch('psutil._pslinux.socket.inet_ntop', side_effect=ValueError) + @mock.patch('psutil._pslinux.supports_ipv6', return_value=False) + def test_emulate_ipv6_unsupported(self, supports_ipv6, inet_ntop): + # see: https://github.com/giampaolo/psutil/issues/623 + try: + s = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) + self.addCleanup(s.close) + s.bind(("::1", 0)) + except socket.error: + pass + psutil.net_connections(kind='inet6') + + def test_emulate_unix(self): + with mock_open_content( + '/proc/net/unix', + textwrap.dedent("""\ + 0: 00000003 000 000 0001 03 462170 @/tmp/dbus-Qw2hMPIU3n + 0: 00000003 000 000 0001 03 35010 @/tmp/dbus-tB2X8h69BQ + 0: 00000003 000 000 0001 03 34424 @/tmp/dbus-cHy80Y8O + 000000000000000000000000000000000000000000000000000000 + """)) as m: + psutil.net_connections(kind='unix') + assert m.called + + +# ===================================================================== +# --- system disks +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemDiskPartitions(PsutilTestCase): + + @unittest.skipIf(not hasattr(os, 'statvfs'), "os.statvfs() not available") + @skip_on_not_implemented() + def test_against_df(self): + # test psutil.disk_usage() and psutil.disk_partitions() + # against "df -a" + def df(path): + out = sh('df -P -B 1 "%s"' % path).strip() + lines = out.split('\n') + lines.pop(0) + line = lines.pop(0) + dev, total, used, free = line.split()[:4] + if dev == 'none': + dev = '' + total, used, free = int(total), int(used), int(free) + return dev, total, used, free + + for part in psutil.disk_partitions(all=False): + usage = psutil.disk_usage(part.mountpoint) + dev, total, used, free = df(part.mountpoint) + self.assertEqual(usage.total, total) + self.assertAlmostEqual(usage.free, free, + delta=TOLERANCE_DISK_USAGE) + self.assertAlmostEqual(usage.used, used, + delta=TOLERANCE_DISK_USAGE) + + def test_zfs_fs(self): + # Test that ZFS partitions are returned. + with open("/proc/filesystems", "r") as f: + data = f.read() + if 'zfs' in data: + for part in psutil.disk_partitions(): + if part.fstype == 'zfs': + break + else: + raise self.fail("couldn't find any ZFS partition") + else: + # No ZFS partitions on this system. Let's fake one. + fake_file = io.StringIO(u("nodev\tzfs\n")) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m1: + with mock.patch( + 'psutil._pslinux.cext.disk_partitions', + return_value=[('/dev/sdb3', '/', 'zfs', 'rw')]) as m2: + ret = psutil.disk_partitions() + assert m1.called + assert m2.called + assert ret + self.assertEqual(ret[0].fstype, 'zfs') + + def test_emulate_realpath_fail(self): + # See: https://github.com/giampaolo/psutil/issues/1307 + try: + with mock.patch('os.path.realpath', + return_value='/non/existent') as m: + with self.assertRaises(FileNotFoundError): + psutil.disk_partitions() + assert m.called + finally: + psutil.PROCFS_PATH = "/proc" + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSystemDiskIoCounters(PsutilTestCase): + + def test_emulate_kernel_2_4(self): + # Tests /proc/diskstats parsing format for 2.4 kernels, see: + # https://github.com/giampaolo/psutil/issues/767 + with mock_open_content( + '/proc/diskstats', + " 3 0 1 hda 2 3 4 5 6 7 8 9 10 11 12"): + with mock.patch('psutil._pslinux.is_storage_device', + return_value=True): + ret = psutil.disk_io_counters(nowrap=False) + self.assertEqual(ret.read_count, 1) + self.assertEqual(ret.read_merged_count, 2) + self.assertEqual(ret.read_bytes, 3 * SECTOR_SIZE) + self.assertEqual(ret.read_time, 4) + self.assertEqual(ret.write_count, 5) + self.assertEqual(ret.write_merged_count, 6) + self.assertEqual(ret.write_bytes, 7 * SECTOR_SIZE) + self.assertEqual(ret.write_time, 8) + self.assertEqual(ret.busy_time, 10) + + def test_emulate_kernel_2_6_full(self): + # Tests /proc/diskstats parsing format for 2.6 kernels, + # lines reporting all metrics: + # https://github.com/giampaolo/psutil/issues/767 + with mock_open_content( + '/proc/diskstats', + " 3 0 hda 1 2 3 4 5 6 7 8 9 10 11"): + with mock.patch('psutil._pslinux.is_storage_device', + return_value=True): + ret = psutil.disk_io_counters(nowrap=False) + self.assertEqual(ret.read_count, 1) + self.assertEqual(ret.read_merged_count, 2) + self.assertEqual(ret.read_bytes, 3 * SECTOR_SIZE) + self.assertEqual(ret.read_time, 4) + self.assertEqual(ret.write_count, 5) + self.assertEqual(ret.write_merged_count, 6) + self.assertEqual(ret.write_bytes, 7 * SECTOR_SIZE) + self.assertEqual(ret.write_time, 8) + self.assertEqual(ret.busy_time, 10) + + def test_emulate_kernel_2_6_limited(self): + # Tests /proc/diskstats parsing format for 2.6 kernels, + # where one line of /proc/partitions return a limited + # amount of metrics when it bumps into a partition + # (instead of a disk). See: + # https://github.com/giampaolo/psutil/issues/767 + with mock_open_content( + '/proc/diskstats', + " 3 1 hda 1 2 3 4"): + with mock.patch('psutil._pslinux.is_storage_device', + return_value=True): + ret = psutil.disk_io_counters(nowrap=False) + self.assertEqual(ret.read_count, 1) + self.assertEqual(ret.read_bytes, 2 * SECTOR_SIZE) + self.assertEqual(ret.write_count, 3) + self.assertEqual(ret.write_bytes, 4 * SECTOR_SIZE) + + self.assertEqual(ret.read_merged_count, 0) + self.assertEqual(ret.read_time, 0) + self.assertEqual(ret.write_merged_count, 0) + self.assertEqual(ret.write_time, 0) + self.assertEqual(ret.busy_time, 0) + + def test_emulate_include_partitions(self): + # Make sure that when perdisk=True disk partitions are returned, + # see: + # https://github.com/giampaolo/psutil/pull/1313#issuecomment-408626842 + with mock_open_content( + '/proc/diskstats', + textwrap.dedent("""\ + 3 0 nvme0n1 1 2 3 4 5 6 7 8 9 10 11 + 3 0 nvme0n1p1 1 2 3 4 5 6 7 8 9 10 11 + """)): + with mock.patch('psutil._pslinux.is_storage_device', + return_value=False): + ret = psutil.disk_io_counters(perdisk=True, nowrap=False) + self.assertEqual(len(ret), 2) + self.assertEqual(ret['nvme0n1'].read_count, 1) + self.assertEqual(ret['nvme0n1p1'].read_count, 1) + self.assertEqual(ret['nvme0n1'].write_count, 5) + self.assertEqual(ret['nvme0n1p1'].write_count, 5) + + def test_emulate_exclude_partitions(self): + # Make sure that when perdisk=False partitions (e.g. 'sda1', + # 'nvme0n1p1') are skipped and not included in the total count. + # https://github.com/giampaolo/psutil/pull/1313#issuecomment-408626842 + with mock_open_content( + '/proc/diskstats', + textwrap.dedent("""\ + 3 0 nvme0n1 1 2 3 4 5 6 7 8 9 10 11 + 3 0 nvme0n1p1 1 2 3 4 5 6 7 8 9 10 11 + """)): + with mock.patch('psutil._pslinux.is_storage_device', + return_value=False): + ret = psutil.disk_io_counters(perdisk=False, nowrap=False) + self.assertIsNone(ret) + + # + def is_storage_device(name): + return name == 'nvme0n1' + + with mock_open_content( + '/proc/diskstats', + textwrap.dedent("""\ + 3 0 nvme0n1 1 2 3 4 5 6 7 8 9 10 11 + 3 0 nvme0n1p1 1 2 3 4 5 6 7 8 9 10 11 + """)): + with mock.patch('psutil._pslinux.is_storage_device', + create=True, side_effect=is_storage_device): + ret = psutil.disk_io_counters(perdisk=False, nowrap=False) + self.assertEqual(ret.read_count, 1) + self.assertEqual(ret.write_count, 5) + + def test_emulate_use_sysfs(self): + def exists(path): + if path == '/proc/diskstats': + return False + return True + + wprocfs = psutil.disk_io_counters(perdisk=True) + with mock.patch('psutil._pslinux.os.path.exists', + create=True, side_effect=exists): + wsysfs = psutil.disk_io_counters(perdisk=True) + self.assertEqual(len(wprocfs), len(wsysfs)) + + def test_emulate_not_impl(self): + def exists(path): + return False + + with mock.patch('psutil._pslinux.os.path.exists', + create=True, side_effect=exists): + self.assertRaises(NotImplementedError, psutil.disk_io_counters) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestRootFsDeviceFinder(PsutilTestCase): + + def setUp(self): + dev = os.stat("/").st_dev + self.major = os.major(dev) + self.minor = os.minor(dev) + + def test_call_methods(self): + finder = RootFsDeviceFinder() + if os.path.exists("/proc/partitions"): + finder.ask_proc_partitions() + else: + self.assertRaises(FileNotFoundError, finder.ask_proc_partitions) + if os.path.exists("/sys/dev/block/%s:%s/uevent" % ( + self.major, self.minor)): + finder.ask_sys_dev_block() + else: + self.assertRaises(FileNotFoundError, finder.ask_sys_dev_block) + finder.ask_sys_class_block() + + @unittest.skipIf(GITHUB_ACTIONS, "unsupported on GITHUB_ACTIONS") + def test_comparisons(self): + finder = RootFsDeviceFinder() + self.assertIsNotNone(finder.find()) + + a = b = c = None + if os.path.exists("/proc/partitions"): + a = finder.ask_proc_partitions() + if os.path.exists("/sys/dev/block/%s:%s/uevent" % ( + self.major, self.minor)): + b = finder.ask_sys_class_block() + c = finder.ask_sys_dev_block() + + base = a or b or c + if base and a: + self.assertEqual(base, a) + if base and b: + self.assertEqual(base, b) + if base and c: + self.assertEqual(base, c) + + @unittest.skipIf(not which("findmnt"), "findmnt utility not available") + @unittest.skipIf(GITHUB_ACTIONS, "unsupported on GITHUB_ACTIONS") + def test_against_findmnt(self): + psutil_value = RootFsDeviceFinder().find() + findmnt_value = sh("findmnt -o SOURCE -rn /") + self.assertEqual(psutil_value, findmnt_value) + + def test_disk_partitions_mocked(self): + with mock.patch( + 'psutil._pslinux.cext.disk_partitions', + return_value=[('/dev/root', '/', 'ext4', 'rw')]) as m: + part = psutil.disk_partitions()[0] + assert m.called + if not GITHUB_ACTIONS: + self.assertNotEqual(part.device, "/dev/root") + self.assertEqual(part.device, RootFsDeviceFinder().find()) + else: + self.assertEqual(part.device, "/dev/root") + + +# ===================================================================== +# --- misc +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestMisc(PsutilTestCase): + + def test_boot_time(self): + vmstat_value = vmstat('boot time') + psutil_value = psutil.boot_time() + self.assertEqual(int(vmstat_value), int(psutil_value)) + + def test_no_procfs_on_import(self): + my_procfs = self.get_testfn() + os.mkdir(my_procfs) + + with open(os.path.join(my_procfs, 'stat'), 'w') as f: + f.write('cpu 0 0 0 0 0 0 0 0 0 0\n') + f.write('cpu0 0 0 0 0 0 0 0 0 0 0\n') + f.write('cpu1 0 0 0 0 0 0 0 0 0 0\n') + + try: + orig_open = open + + def open_mock(name, *args, **kwargs): + if name.startswith('/proc'): + raise IOError(errno.ENOENT, 'rejecting access for test') + return orig_open(name, *args, **kwargs) + + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + reload_module(psutil) + + self.assertRaises(IOError, psutil.cpu_times) + self.assertRaises(IOError, psutil.cpu_times, percpu=True) + self.assertRaises(IOError, psutil.cpu_percent) + self.assertRaises(IOError, psutil.cpu_percent, percpu=True) + self.assertRaises(IOError, psutil.cpu_times_percent) + self.assertRaises( + IOError, psutil.cpu_times_percent, percpu=True) + + psutil.PROCFS_PATH = my_procfs + + self.assertEqual(psutil.cpu_percent(), 0) + self.assertEqual(sum(psutil.cpu_times_percent()), 0) + + # since we don't know the number of CPUs at import time, + # we awkwardly say there are none until the second call + per_cpu_percent = psutil.cpu_percent(percpu=True) + self.assertEqual(sum(per_cpu_percent), 0) + + # ditto awkward length + per_cpu_times_percent = psutil.cpu_times_percent(percpu=True) + self.assertEqual(sum(map(sum, per_cpu_times_percent)), 0) + + # much user, very busy + with open(os.path.join(my_procfs, 'stat'), 'w') as f: + f.write('cpu 1 0 0 0 0 0 0 0 0 0\n') + f.write('cpu0 1 0 0 0 0 0 0 0 0 0\n') + f.write('cpu1 1 0 0 0 0 0 0 0 0 0\n') + + self.assertNotEqual(psutil.cpu_percent(), 0) + self.assertNotEqual( + sum(psutil.cpu_percent(percpu=True)), 0) + self.assertNotEqual(sum(psutil.cpu_times_percent()), 0) + self.assertNotEqual( + sum(map(sum, psutil.cpu_times_percent(percpu=True))), 0) + finally: + shutil.rmtree(my_procfs) + reload_module(psutil) + + self.assertEqual(psutil.PROCFS_PATH, '/proc') + + def test_cpu_steal_decrease(self): + # Test cumulative cpu stats decrease. We should ignore this. + # See issue #1210. + with mock_open_content( + "/proc/stat", + textwrap.dedent("""\ + cpu 0 0 0 0 0 0 0 1 0 0 + cpu0 0 0 0 0 0 0 0 1 0 0 + cpu1 0 0 0 0 0 0 0 1 0 0 + """).encode()) as m: + # first call to "percent" functions should read the new stat file + # and compare to the "real" file read at import time - so the + # values are meaningless + psutil.cpu_percent() + assert m.called + psutil.cpu_percent(percpu=True) + psutil.cpu_times_percent() + psutil.cpu_times_percent(percpu=True) + + with mock_open_content( + "/proc/stat", + textwrap.dedent("""\ + cpu 1 0 0 0 0 0 0 0 0 0 + cpu0 1 0 0 0 0 0 0 0 0 0 + cpu1 1 0 0 0 0 0 0 0 0 0 + """).encode()) as m: + # Increase "user" while steal goes "backwards" to zero. + cpu_percent = psutil.cpu_percent() + assert m.called + cpu_percent_percpu = psutil.cpu_percent(percpu=True) + cpu_times_percent = psutil.cpu_times_percent() + cpu_times_percent_percpu = psutil.cpu_times_percent(percpu=True) + self.assertNotEqual(cpu_percent, 0) + self.assertNotEqual(sum(cpu_percent_percpu), 0) + self.assertNotEqual(sum(cpu_times_percent), 0) + self.assertNotEqual(sum(cpu_times_percent), 100.0) + self.assertNotEqual(sum(map(sum, cpu_times_percent_percpu)), 0) + self.assertNotEqual(sum(map(sum, cpu_times_percent_percpu)), 100.0) + self.assertEqual(cpu_times_percent.steal, 0) + self.assertNotEqual(cpu_times_percent.user, 0) + + def test_boot_time_mocked(self): + with mock.patch('psutil._common.open', create=True) as m: + self.assertRaises( + RuntimeError, + psutil._pslinux.boot_time) + assert m.called + + def test_users_mocked(self): + # Make sure ':0' and ':0.0' (returned by C ext) are converted + # to 'localhost'. + with mock.patch('psutil._pslinux.cext.users', + return_value=[('giampaolo', 'pts/2', ':0', + 1436573184.0, True, 2)]) as m: + self.assertEqual(psutil.users()[0].host, 'localhost') + assert m.called + with mock.patch('psutil._pslinux.cext.users', + return_value=[('giampaolo', 'pts/2', ':0.0', + 1436573184.0, True, 2)]) as m: + self.assertEqual(psutil.users()[0].host, 'localhost') + assert m.called + # ...otherwise it should be returned as-is + with mock.patch('psutil._pslinux.cext.users', + return_value=[('giampaolo', 'pts/2', 'foo', + 1436573184.0, True, 2)]) as m: + self.assertEqual(psutil.users()[0].host, 'foo') + assert m.called + + def test_procfs_path(self): + tdir = self.get_testfn() + os.mkdir(tdir) + try: + psutil.PROCFS_PATH = tdir + self.assertRaises(IOError, psutil.virtual_memory) + self.assertRaises(IOError, psutil.cpu_times) + self.assertRaises(IOError, psutil.cpu_times, percpu=True) + self.assertRaises(IOError, psutil.boot_time) + # self.assertRaises(IOError, psutil.pids) + self.assertRaises(IOError, psutil.net_connections) + self.assertRaises(IOError, psutil.net_io_counters) + self.assertRaises(IOError, psutil.net_if_stats) + # self.assertRaises(IOError, psutil.disk_io_counters) + self.assertRaises(IOError, psutil.disk_partitions) + self.assertRaises(psutil.NoSuchProcess, psutil.Process) + finally: + psutil.PROCFS_PATH = "/proc" + + @retry_on_failure() + def test_issue_687(self): + # In case of thread ID: + # - pid_exists() is supposed to return False + # - Process(tid) is supposed to work + # - pids() should not return the TID + # See: https://github.com/giampaolo/psutil/issues/687 + with ThreadTask(): + p = psutil.Process() + threads = p.threads() + self.assertEqual(len(threads), 2) + tid = sorted(threads, key=lambda x: x.id)[1].id + self.assertNotEqual(p.pid, tid) + pt = psutil.Process(tid) + pt.as_dict() + self.assertNotIn(tid, psutil.pids()) + + def test_pid_exists_no_proc_status(self): + # Internally pid_exists relies on /proc/{pid}/status. + # Emulate a case where this file is empty in which case + # psutil is supposed to fall back on using pids(). + with mock_open_content("/proc/%s/status", "") as m: + assert psutil.pid_exists(os.getpid()) + assert m.called + + +# ===================================================================== +# --- sensors +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +@unittest.skipIf(not HAS_BATTERY, "no battery") +class TestSensorsBattery(PsutilTestCase): + + @unittest.skipIf(not which("acpi"), "acpi utility not available") + def test_percent(self): + out = sh("acpi -b") + acpi_value = int(out.split(",")[1].strip().replace('%', '')) + psutil_value = psutil.sensors_battery().percent + self.assertAlmostEqual(acpi_value, psutil_value, delta=1) + + def test_emulate_power_plugged(self): + # Pretend the AC power cable is connected. + def open_mock(name, *args, **kwargs): + if name.endswith("AC0/online") or name.endswith("AC/online"): + return io.BytesIO(b"1") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock) as m: + self.assertEqual(psutil.sensors_battery().power_plugged, True) + self.assertEqual( + psutil.sensors_battery().secsleft, psutil.POWER_TIME_UNLIMITED) + assert m.called + + def test_emulate_power_plugged_2(self): + # Same as above but pretend /AC0/online does not exist in which + # case code relies on /status file. + def open_mock(name, *args, **kwargs): + if name.endswith("AC0/online") or name.endswith("AC/online"): + raise IOError(errno.ENOENT, "") + elif name.endswith("/status"): + return io.StringIO(u("charging")) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock) as m: + self.assertEqual(psutil.sensors_battery().power_plugged, True) + assert m.called + + def test_emulate_power_not_plugged(self): + # Pretend the AC power cable is not connected. + def open_mock(name, *args, **kwargs): + if name.endswith("AC0/online") or name.endswith("AC/online"): + return io.BytesIO(b"0") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock) as m: + self.assertEqual(psutil.sensors_battery().power_plugged, False) + assert m.called + + def test_emulate_power_not_plugged_2(self): + # Same as above but pretend /AC0/online does not exist in which + # case code relies on /status file. + def open_mock(name, *args, **kwargs): + if name.endswith("AC0/online") or name.endswith("AC/online"): + raise IOError(errno.ENOENT, "") + elif name.endswith("/status"): + return io.StringIO(u("discharging")) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock) as m: + self.assertEqual(psutil.sensors_battery().power_plugged, False) + assert m.called + + def test_emulate_power_undetermined(self): + # Pretend we can't know whether the AC power cable not + # connected (assert fallback to False). + def open_mock(name, *args, **kwargs): + if name.startswith("/sys/class/power_supply/AC0/online") or \ + name.startswith("/sys/class/power_supply/AC/online"): + raise IOError(errno.ENOENT, "") + elif name.startswith("/sys/class/power_supply/BAT0/status"): + return io.BytesIO(b"???") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock) as m: + self.assertIsNone(psutil.sensors_battery().power_plugged) + assert m.called + + def test_emulate_energy_full_0(self): + # Emulate a case where energy_full files returns 0. + with mock_open_content( + "/sys/class/power_supply/BAT0/energy_full", b"0") as m: + self.assertEqual(psutil.sensors_battery().percent, 0) + assert m.called + + def test_emulate_energy_full_not_avail(self): + # Emulate a case where energy_full file does not exist. + # Expected fallback on /capacity. + with mock_open_exception( + "/sys/class/power_supply/BAT0/energy_full", + IOError(errno.ENOENT, "")): + with mock_open_exception( + "/sys/class/power_supply/BAT0/charge_full", + IOError(errno.ENOENT, "")): + with mock_open_content( + "/sys/class/power_supply/BAT0/capacity", b"88"): + self.assertEqual(psutil.sensors_battery().percent, 88) + + def test_emulate_no_power(self): + # Emulate a case where /AC0/online file nor /BAT0/status exist. + with mock_open_exception( + "/sys/class/power_supply/AC/online", + IOError(errno.ENOENT, "")): + with mock_open_exception( + "/sys/class/power_supply/AC0/online", + IOError(errno.ENOENT, "")): + with mock_open_exception( + "/sys/class/power_supply/BAT0/status", + IOError(errno.ENOENT, "")): + self.assertIsNone(psutil.sensors_battery().power_plugged) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSensorsBatteryEmulated(PsutilTestCase): + + def test_it(self): + def open_mock(name, *args, **kwargs): + if name.endswith("/energy_now"): + return io.StringIO(u("60000000")) + elif name.endswith("/power_now"): + return io.StringIO(u("0")) + elif name.endswith("/energy_full"): + return io.StringIO(u("60000001")) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch('os.listdir', return_value=["BAT0"]) as mlistdir: + with mock.patch(patch_point, side_effect=open_mock) as mopen: + self.assertIsNotNone(psutil.sensors_battery()) + assert mlistdir.called + assert mopen.called + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSensorsTemperatures(PsutilTestCase): + + def test_emulate_class_hwmon(self): + def open_mock(name, *args, **kwargs): + if name.endswith('/name'): + return io.StringIO(u("name")) + elif name.endswith('/temp1_label'): + return io.StringIO(u("label")) + elif name.endswith('/temp1_input'): + return io.BytesIO(b"30000") + elif name.endswith('/temp1_max'): + return io.BytesIO(b"40000") + elif name.endswith('/temp1_crit'): + return io.BytesIO(b"50000") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + # Test case with /sys/class/hwmon + with mock.patch('glob.glob', + return_value=['/sys/class/hwmon/hwmon0/temp1']): + temp = psutil.sensors_temperatures()['name'][0] + self.assertEqual(temp.label, 'label') + self.assertEqual(temp.current, 30.0) + self.assertEqual(temp.high, 40.0) + self.assertEqual(temp.critical, 50.0) + + def test_emulate_class_thermal(self): + def open_mock(name, *args, **kwargs): + if name.endswith('0_temp'): + return io.BytesIO(b"50000") + elif name.endswith('temp'): + return io.BytesIO(b"30000") + elif name.endswith('0_type'): + return io.StringIO(u("critical")) + elif name.endswith('type'): + return io.StringIO(u("name")) + else: + return orig_open(name, *args, **kwargs) + + def glob_mock(path): + if path == '/sys/class/hwmon/hwmon*/temp*_*': + return [] + elif path == '/sys/class/hwmon/hwmon*/device/temp*_*': + return [] + elif path == '/sys/class/thermal/thermal_zone*': + return ['/sys/class/thermal/thermal_zone0'] + elif path == '/sys/class/thermal/thermal_zone0/trip_point*': + return ['/sys/class/thermal/thermal_zone1/trip_point_0_type', + '/sys/class/thermal/thermal_zone1/trip_point_0_temp'] + return [] + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + with mock.patch('glob.glob', create=True, side_effect=glob_mock): + temp = psutil.sensors_temperatures()['name'][0] + self.assertEqual(temp.label, '') + self.assertEqual(temp.current, 30.0) + self.assertEqual(temp.high, 50.0) + self.assertEqual(temp.critical, 50.0) + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestSensorsFans(PsutilTestCase): + + def test_emulate_data(self): + def open_mock(name, *args, **kwargs): + if name.endswith('/name'): + return io.StringIO(u("name")) + elif name.endswith('/fan1_label'): + return io.StringIO(u("label")) + elif name.endswith('/fan1_input'): + return io.StringIO(u("2000")) + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock): + with mock.patch('glob.glob', + return_value=['/sys/class/hwmon/hwmon2/fan1']): + fan = psutil.sensors_fans()['name'][0] + self.assertEqual(fan.label, 'label') + self.assertEqual(fan.current, 2000) + + +# ===================================================================== +# --- test process +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestProcess(PsutilTestCase): + + @retry_on_failure() + def test_parse_smaps_vs_memory_maps(self): + sproc = self.spawn_testproc() + uss, pss, swap = psutil._pslinux.Process(sproc.pid)._parse_smaps() + maps = psutil.Process(sproc.pid).memory_maps(grouped=False) + self.assertAlmostEqual( + uss, sum([x.private_dirty + x.private_clean for x in maps]), + delta=4096) + self.assertAlmostEqual( + pss, sum([x.pss for x in maps]), delta=4096) + self.assertAlmostEqual( + swap, sum([x.swap for x in maps]), delta=4096) + + def test_parse_smaps_mocked(self): + # See: https://github.com/giampaolo/psutil/issues/1222 + with mock_open_content( + "/proc/%s/smaps" % os.getpid(), + textwrap.dedent("""\ + fffff0 r-xp 00000000 00:00 0 [vsyscall] + Size: 1 kB + Rss: 2 kB + Pss: 3 kB + Shared_Clean: 4 kB + Shared_Dirty: 5 kB + Private_Clean: 6 kB + Private_Dirty: 7 kB + Referenced: 8 kB + Anonymous: 9 kB + LazyFree: 10 kB + AnonHugePages: 11 kB + ShmemPmdMapped: 12 kB + Shared_Hugetlb: 13 kB + Private_Hugetlb: 14 kB + Swap: 15 kB + SwapPss: 16 kB + KernelPageSize: 17 kB + MMUPageSize: 18 kB + Locked: 19 kB + VmFlags: rd ex + """).encode()) as m: + p = psutil._pslinux.Process(os.getpid()) + uss, pss, swap = p._parse_smaps() + assert m.called + self.assertEqual(uss, (6 + 7 + 14) * 1024) + self.assertEqual(pss, 3 * 1024) + self.assertEqual(swap, 15 * 1024) + + # On PYPY file descriptors are not closed fast enough. + @unittest.skipIf(PYPY, "unreliable on PYPY") + def test_open_files_mode(self): + def get_test_file(fname): + p = psutil.Process() + giveup_at = time.time() + GLOBAL_TIMEOUT + while True: + for file in p.open_files(): + if file.path == os.path.abspath(fname): + return file + elif time.time() > giveup_at: + break + raise RuntimeError("timeout looking for test file") + + # + testfn = self.get_testfn() + with open(testfn, "w"): + self.assertEqual(get_test_file(testfn).mode, "w") + with open(testfn, "r"): + self.assertEqual(get_test_file(testfn).mode, "r") + with open(testfn, "a"): + self.assertEqual(get_test_file(testfn).mode, "a") + # + with open(testfn, "r+"): + self.assertEqual(get_test_file(testfn).mode, "r+") + with open(testfn, "w+"): + self.assertEqual(get_test_file(testfn).mode, "r+") + with open(testfn, "a+"): + self.assertEqual(get_test_file(testfn).mode, "a+") + # note: "x" bit is not supported + if PY3: + safe_rmpath(testfn) + with open(testfn, "x"): + self.assertEqual(get_test_file(testfn).mode, "w") + safe_rmpath(testfn) + with open(testfn, "x+"): + self.assertEqual(get_test_file(testfn).mode, "r+") + + def test_open_files_file_gone(self): + # simulates a file which gets deleted during open_files() + # execution + p = psutil.Process() + files = p.open_files() + with open(self.get_testfn(), 'w'): + # give the kernel some time to see the new file + call_until(p.open_files, "len(ret) != %i" % len(files)) + with mock.patch('psutil._pslinux.os.readlink', + side_effect=OSError(errno.ENOENT, "")) as m: + files = p.open_files() + assert not files + assert m.called + # also simulate the case where os.readlink() returns EINVAL + # in which case psutil is supposed to 'continue' + with mock.patch('psutil._pslinux.os.readlink', + side_effect=OSError(errno.EINVAL, "")) as m: + self.assertEqual(p.open_files(), []) + assert m.called + + def test_open_files_fd_gone(self): + # Simulate a case where /proc/{pid}/fdinfo/{fd} disappears + # while iterating through fds. + # https://travis-ci.org/giampaolo/psutil/jobs/225694530 + p = psutil.Process() + files = p.open_files() + with open(self.get_testfn(), 'w'): + # give the kernel some time to see the new file + call_until(p.open_files, "len(ret) != %i" % len(files)) + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, + side_effect=IOError(errno.ENOENT, "")) as m: + files = p.open_files() + assert not files + assert m.called + + def test_open_files_enametoolong(self): + # Simulate a case where /proc/{pid}/fd/{fd} symlink + # points to a file with full path longer than PATH_MAX, see: + # https://github.com/giampaolo/psutil/issues/1940 + p = psutil.Process() + files = p.open_files() + with open(self.get_testfn(), 'w'): + # give the kernel some time to see the new file + call_until(p.open_files, "len(ret) != %i" % len(files)) + patch_point = 'psutil._pslinux.os.readlink' + with mock.patch(patch_point, + side_effect=OSError(errno.ENAMETOOLONG, "")) as m: + with mock.patch("psutil._pslinux.debug"): + files = p.open_files() + assert not files + assert m.called + + # --- mocked tests + + def test_terminal_mocked(self): + with mock.patch('psutil._pslinux._psposix.get_terminal_map', + return_value={}) as m: + self.assertIsNone(psutil._pslinux.Process(os.getpid()).terminal()) + assert m.called + + # TODO: re-enable this test. + # def test_num_ctx_switches_mocked(self): + # with mock.patch('psutil._common.open', create=True) as m: + # self.assertRaises( + # NotImplementedError, + # psutil._pslinux.Process(os.getpid()).num_ctx_switches) + # assert m.called + + def test_cmdline_mocked(self): + # see: https://github.com/giampaolo/psutil/issues/639 + p = psutil.Process() + fake_file = io.StringIO(u('foo\x00bar\x00')) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m: + self.assertEqual(p.cmdline(), ['foo', 'bar']) + assert m.called + fake_file = io.StringIO(u('foo\x00bar\x00\x00')) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m: + self.assertEqual(p.cmdline(), ['foo', 'bar', '']) + assert m.called + + def test_cmdline_spaces_mocked(self): + # see: https://github.com/giampaolo/psutil/issues/1179 + p = psutil.Process() + fake_file = io.StringIO(u('foo bar ')) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m: + self.assertEqual(p.cmdline(), ['foo', 'bar']) + assert m.called + fake_file = io.StringIO(u('foo bar ')) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m: + self.assertEqual(p.cmdline(), ['foo', 'bar', '']) + assert m.called + + def test_cmdline_mixed_separators(self): + # https://github.com/giampaolo/psutil/issues/ + # 1179#issuecomment-552984549 + p = psutil.Process() + fake_file = io.StringIO(u('foo\x20bar\x00')) + with mock.patch('psutil._common.open', + return_value=fake_file, create=True) as m: + self.assertEqual(p.cmdline(), ['foo', 'bar']) + assert m.called + + def test_readlink_path_deleted_mocked(self): + with mock.patch('psutil._pslinux.os.readlink', + return_value='/home/foo (deleted)'): + self.assertEqual(psutil.Process().exe(), "/home/foo") + self.assertEqual(psutil.Process().cwd(), "/home/foo") + + def test_threads_mocked(self): + # Test the case where os.listdir() returns a file (thread) + # which no longer exists by the time we open() it (race + # condition). threads() is supposed to ignore that instead + # of raising NSP. + def open_mock(name, *args, **kwargs): + if name.startswith('/proc/%s/task' % os.getpid()): + raise IOError(errno.ENOENT, "") + else: + return orig_open(name, *args, **kwargs) + + orig_open = open + patch_point = 'builtins.open' if PY3 else '__builtin__.open' + with mock.patch(patch_point, side_effect=open_mock) as m: + ret = psutil.Process().threads() + assert m.called + self.assertEqual(ret, []) + + # ...but if it bumps into something != ENOENT we want an + # exception. + def open_mock(name, *args, **kwargs): + if name.startswith('/proc/%s/task' % os.getpid()): + raise IOError(errno.EPERM, "") + else: + return orig_open(name, *args, **kwargs) + + with mock.patch(patch_point, side_effect=open_mock): + self.assertRaises(psutil.AccessDenied, psutil.Process().threads) + + def test_exe_mocked(self): + with mock.patch('psutil._pslinux.readlink', + side_effect=OSError(errno.ENOENT, "")) as m1: + with mock.patch('psutil.Process.cmdline', + side_effect=psutil.AccessDenied(0, "")) as m2: + # No such file error; might be raised also if /proc/pid/exe + # path actually exists for system processes with low pids + # (about 0-20). In this case psutil is supposed to return + # an empty string. + ret = psutil.Process().exe() + assert m1.called + assert m2.called + self.assertEqual(ret, "") + + # ...but if /proc/pid no longer exist we're supposed to treat + # it as an alias for zombie process + with mock.patch('psutil._pslinux.os.path.lexists', + return_value=False): + self.assertRaises( + psutil.ZombieProcess, psutil.Process().exe) + + def test_issue_1014(self): + # Emulates a case where smaps file does not exist. In this case + # wrap_exception decorator should not raise NoSuchProcess. + with mock_open_exception( + '/proc/%s/smaps' % os.getpid(), + IOError(errno.ENOENT, "")) as m: + p = psutil.Process() + with self.assertRaises(FileNotFoundError): + p.memory_maps() + assert m.called + + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit_zombie(self): + # Emulate a case where rlimit() raises ENOSYS, which may + # happen in case of zombie process: + # https://travis-ci.org/giampaolo/psutil/jobs/51368273 + with mock.patch("psutil._pslinux.prlimit", + side_effect=OSError(errno.ENOSYS, "")) as m: + p = psutil.Process() + p.name() + with self.assertRaises(psutil.ZombieProcess) as exc: + p.rlimit(psutil.RLIMIT_NOFILE) + assert m.called + self.assertEqual(exc.exception.pid, p.pid) + self.assertEqual(exc.exception.name, p.name()) + + def test_cwd_zombie(self): + with mock.patch("psutil._pslinux.os.readlink", + side_effect=OSError(errno.ENOENT, "")) as m: + p = psutil.Process() + p.name() + with self.assertRaises(psutil.ZombieProcess) as exc: + p.cwd() + assert m.called + self.assertEqual(exc.exception.pid, p.pid) + self.assertEqual(exc.exception.name, p.name()) + + def test_stat_file_parsing(self): + args = [ + "0", # pid + "(cat)", # name + "Z", # status + "1", # ppid + "0", # pgrp + "0", # session + "0", # tty + "0", # tpgid + "0", # flags + "0", # minflt + "0", # cminflt + "0", # majflt + "0", # cmajflt + "2", # utime + "3", # stime + "4", # cutime + "5", # cstime + "0", # priority + "0", # nice + "0", # num_threads + "0", # itrealvalue + "6", # starttime + "0", # vsize + "0", # rss + "0", # rsslim + "0", # startcode + "0", # endcode + "0", # startstack + "0", # kstkesp + "0", # kstkeip + "0", # signal + "0", # blocked + "0", # sigignore + "0", # sigcatch + "0", # wchan + "0", # nswap + "0", # cnswap + "0", # exit_signal + "6", # processor + "0", # rt priority + "0", # policy + "7", # delayacct_blkio_ticks + ] + content = " ".join(args).encode() + with mock_open_content('/proc/%s/stat' % os.getpid(), content): + p = psutil.Process() + self.assertEqual(p.name(), 'cat') + self.assertEqual(p.status(), psutil.STATUS_ZOMBIE) + self.assertEqual(p.ppid(), 1) + self.assertEqual( + p.create_time(), 6 / CLOCK_TICKS + psutil.boot_time()) + cpu = p.cpu_times() + self.assertEqual(cpu.user, 2 / CLOCK_TICKS) + self.assertEqual(cpu.system, 3 / CLOCK_TICKS) + self.assertEqual(cpu.children_user, 4 / CLOCK_TICKS) + self.assertEqual(cpu.children_system, 5 / CLOCK_TICKS) + self.assertEqual(cpu.iowait, 7 / CLOCK_TICKS) + self.assertEqual(p.cpu_num(), 6) + + def test_status_file_parsing(self): + with mock_open_content( + '/proc/%s/status' % os.getpid(), + textwrap.dedent("""\ + Uid:\t1000\t1001\t1002\t1003 + Gid:\t1004\t1005\t1006\t1007 + Threads:\t66 + Cpus_allowed:\tf + Cpus_allowed_list:\t0-7 + voluntary_ctxt_switches:\t12 + nonvoluntary_ctxt_switches:\t13""").encode()): + p = psutil.Process() + self.assertEqual(p.num_ctx_switches().voluntary, 12) + self.assertEqual(p.num_ctx_switches().involuntary, 13) + self.assertEqual(p.num_threads(), 66) + uids = p.uids() + self.assertEqual(uids.real, 1000) + self.assertEqual(uids.effective, 1001) + self.assertEqual(uids.saved, 1002) + gids = p.gids() + self.assertEqual(gids.real, 1004) + self.assertEqual(gids.effective, 1005) + self.assertEqual(gids.saved, 1006) + self.assertEqual(p._proc._get_eligible_cpus(), list(range(0, 8))) + + def test_connections_enametoolong(self): + # Simulate a case where /proc/{pid}/fd/{fd} symlink points to + # a file with full path longer than PATH_MAX, see: + # https://github.com/giampaolo/psutil/issues/1940 + with mock.patch('psutil._pslinux.os.readlink', + side_effect=OSError(errno.ENAMETOOLONG, "")) as m: + p = psutil.Process() + with mock.patch("psutil._pslinux.debug"): + assert not p.connections() + assert m.called + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestProcessAgainstStatus(PsutilTestCase): + """/proc/pid/stat and /proc/pid/status have many values in common. + Whenever possible, psutil uses /proc/pid/stat (it's faster). + For all those cases we check that the value found in + /proc/pid/stat (by psutil) matches the one found in + /proc/pid/status. + """ + + @classmethod + def setUpClass(cls): + cls.proc = psutil.Process() + + def read_status_file(self, linestart): + with psutil._psplatform.open_text( + '/proc/%s/status' % self.proc.pid) as f: + for line in f: + line = line.strip() + if line.startswith(linestart): + value = line.partition('\t')[2] + try: + return int(value) + except ValueError: + return value + raise ValueError("can't find %r" % linestart) + + def test_name(self): + value = self.read_status_file("Name:") + self.assertEqual(self.proc.name(), value) + + def test_status(self): + value = self.read_status_file("State:") + value = value[value.find('(') + 1:value.rfind(')')] + value = value.replace(' ', '-') + self.assertEqual(self.proc.status(), value) + + def test_ppid(self): + value = self.read_status_file("PPid:") + self.assertEqual(self.proc.ppid(), value) + + def test_num_threads(self): + value = self.read_status_file("Threads:") + self.assertEqual(self.proc.num_threads(), value) + + def test_uids(self): + value = self.read_status_file("Uid:") + value = tuple(map(int, value.split()[1:4])) + self.assertEqual(self.proc.uids(), value) + + def test_gids(self): + value = self.read_status_file("Gid:") + value = tuple(map(int, value.split()[1:4])) + self.assertEqual(self.proc.gids(), value) + + @retry_on_failure() + def test_num_ctx_switches(self): + value = self.read_status_file("voluntary_ctxt_switches:") + self.assertEqual(self.proc.num_ctx_switches().voluntary, value) + value = self.read_status_file("nonvoluntary_ctxt_switches:") + self.assertEqual(self.proc.num_ctx_switches().involuntary, value) + + def test_cpu_affinity(self): + value = self.read_status_file("Cpus_allowed_list:") + if '-' in str(value): + min_, max_ = map(int, value.split('-')) + self.assertEqual( + self.proc.cpu_affinity(), list(range(min_, max_ + 1))) + + def test_cpu_affinity_eligible_cpus(self): + value = self.read_status_file("Cpus_allowed_list:") + with mock.patch("psutil._pslinux.per_cpu_times") as m: + self.proc._proc._get_eligible_cpus() + if '-' in str(value): + assert not m.called + else: + assert m.called + + +# ===================================================================== +# --- test utils +# ===================================================================== + + +@unittest.skipIf(not LINUX, "LINUX only") +class TestUtils(PsutilTestCase): + + def test_readlink(self): + with mock.patch("os.readlink", return_value="foo (deleted)") as m: + self.assertEqual(psutil._psplatform.readlink("bar"), "foo") + assert m.called + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_memleaks.py b/lib/psutil/tests/test_memleaks.py new file mode 100644 index 0000000..dbd1588 --- /dev/null +++ b/lib/psutil/tests/test_memleaks.py @@ -0,0 +1,492 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Tests for detecting function memory leaks (typically the ones +implemented in C). It does so by calling a function many times and +checking whether process memory usage keeps increasing between +calls or over time. +Note that this may produce false positives (especially on Windows +for some reason). +PyPy appears to be completely unstable for this framework, probably +because of how its JIT handles memory, so tests are skipped. +""" + +from __future__ import print_function + +import functools +import os +import platform +import unittest + +import psutil +import psutil._common +from psutil import LINUX +from psutil import MACOS +from psutil import OPENBSD +from psutil import POSIX +from psutil import SUNOS +from psutil import WINDOWS +from psutil._compat import ProcessLookupError +from psutil._compat import super +from psutil.tests import HAS_CPU_AFFINITY +from psutil.tests import HAS_CPU_FREQ +from psutil.tests import HAS_ENVIRON +from psutil.tests import HAS_IONICE +from psutil.tests import HAS_MEMORY_MAPS +from psutil.tests import HAS_NET_IO_COUNTERS +from psutil.tests import HAS_PROC_CPU_NUM +from psutil.tests import HAS_PROC_IO_COUNTERS +from psutil.tests import HAS_RLIMIT +from psutil.tests import HAS_SENSORS_BATTERY +from psutil.tests import HAS_SENSORS_FANS +from psutil.tests import HAS_SENSORS_TEMPERATURES +from psutil.tests import TestMemoryLeak +from psutil.tests import create_sockets +from psutil.tests import get_testfn +from psutil.tests import process_namespace +from psutil.tests import skip_on_access_denied +from psutil.tests import spawn_testproc +from psutil.tests import system_namespace +from psutil.tests import terminate + + +cext = psutil._psplatform.cext +thisproc = psutil.Process() +FEW_TIMES = 5 + + +def fewtimes_if_linux(): + """Decorator for those Linux functions which are implemented in pure + Python, and which we want to run faster. + """ + def decorator(fun): + @functools.wraps(fun) + def wrapper(self, *args, **kwargs): + if LINUX: + before = self.__class__.times + try: + self.__class__.times = FEW_TIMES + return fun(self, *args, **kwargs) + finally: + self.__class__.times = before + else: + return fun(self, *args, **kwargs) + return wrapper + return decorator + + +# =================================================================== +# Process class +# =================================================================== + + +class TestProcessObjectLeaks(TestMemoryLeak): + """Test leaks of Process class methods.""" + + proc = thisproc + + def test_coverage(self): + ns = process_namespace(None) + ns.test_class_coverage(self, ns.getters + ns.setters) + + @fewtimes_if_linux() + def test_name(self): + self.execute(self.proc.name) + + @fewtimes_if_linux() + def test_cmdline(self): + self.execute(self.proc.cmdline) + + @fewtimes_if_linux() + def test_exe(self): + self.execute(self.proc.exe) + + @fewtimes_if_linux() + def test_ppid(self): + self.execute(self.proc.ppid) + + @unittest.skipIf(not POSIX, "POSIX only") + @fewtimes_if_linux() + def test_uids(self): + self.execute(self.proc.uids) + + @unittest.skipIf(not POSIX, "POSIX only") + @fewtimes_if_linux() + def test_gids(self): + self.execute(self.proc.gids) + + @fewtimes_if_linux() + def test_status(self): + self.execute(self.proc.status) + + def test_nice(self): + self.execute(self.proc.nice) + + def test_nice_set(self): + niceness = thisproc.nice() + self.execute(lambda: self.proc.nice(niceness)) + + @unittest.skipIf(not HAS_IONICE, "not supported") + def test_ionice(self): + self.execute(self.proc.ionice) + + @unittest.skipIf(not HAS_IONICE, "not supported") + def test_ionice_set(self): + if WINDOWS: + value = thisproc.ionice() + self.execute(lambda: self.proc.ionice(value)) + else: + self.execute(lambda: self.proc.ionice(psutil.IOPRIO_CLASS_NONE)) + fun = functools.partial(cext.proc_ioprio_set, os.getpid(), -1, 0) + self.execute_w_exc(OSError, fun) + + @unittest.skipIf(not HAS_PROC_IO_COUNTERS, "not supported") + @fewtimes_if_linux() + def test_io_counters(self): + self.execute(self.proc.io_counters) + + @unittest.skipIf(POSIX, "worthless on POSIX") + def test_username(self): + # always open 1 handle on Windows (only once) + psutil.Process().username() + self.execute(self.proc.username) + + @fewtimes_if_linux() + def test_create_time(self): + self.execute(self.proc.create_time) + + @fewtimes_if_linux() + @skip_on_access_denied(only_if=OPENBSD) + def test_num_threads(self): + self.execute(self.proc.num_threads) + + @unittest.skipIf(not WINDOWS, "WINDOWS only") + def test_num_handles(self): + self.execute(self.proc.num_handles) + + @unittest.skipIf(not POSIX, "POSIX only") + @fewtimes_if_linux() + def test_num_fds(self): + self.execute(self.proc.num_fds) + + @fewtimes_if_linux() + def test_num_ctx_switches(self): + self.execute(self.proc.num_ctx_switches) + + @fewtimes_if_linux() + @skip_on_access_denied(only_if=OPENBSD) + def test_threads(self): + self.execute(self.proc.threads) + + @fewtimes_if_linux() + def test_cpu_times(self): + self.execute(self.proc.cpu_times) + + @fewtimes_if_linux() + @unittest.skipIf(not HAS_PROC_CPU_NUM, "not supported") + def test_cpu_num(self): + self.execute(self.proc.cpu_num) + + @fewtimes_if_linux() + def test_memory_info(self): + self.execute(self.proc.memory_info) + + @fewtimes_if_linux() + def test_memory_full_info(self): + self.execute(self.proc.memory_full_info) + + @unittest.skipIf(not POSIX, "POSIX only") + @fewtimes_if_linux() + def test_terminal(self): + self.execute(self.proc.terminal) + + def test_resume(self): + times = FEW_TIMES if POSIX else self.times + self.execute(self.proc.resume, times=times) + + @fewtimes_if_linux() + def test_cwd(self): + self.execute(self.proc.cwd) + + @unittest.skipIf(not HAS_CPU_AFFINITY, "not supported") + def test_cpu_affinity(self): + self.execute(self.proc.cpu_affinity) + + @unittest.skipIf(not HAS_CPU_AFFINITY, "not supported") + def test_cpu_affinity_set(self): + affinity = thisproc.cpu_affinity() + self.execute(lambda: self.proc.cpu_affinity(affinity)) + self.execute_w_exc( + ValueError, lambda: self.proc.cpu_affinity([-1])) + + @fewtimes_if_linux() + def test_open_files(self): + with open(get_testfn(), 'w'): + self.execute(self.proc.open_files) + + @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") + @fewtimes_if_linux() + def test_memory_maps(self): + self.execute(self.proc.memory_maps) + + @unittest.skipIf(not LINUX, "LINUX only") + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit(self): + self.execute(lambda: self.proc.rlimit(psutil.RLIMIT_NOFILE)) + + @unittest.skipIf(not LINUX, "LINUX only") + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit_set(self): + limit = thisproc.rlimit(psutil.RLIMIT_NOFILE) + self.execute(lambda: self.proc.rlimit(psutil.RLIMIT_NOFILE, limit)) + self.execute_w_exc((OSError, ValueError), lambda: self.proc.rlimit(-1)) + + @fewtimes_if_linux() + # Windows implementation is based on a single system-wide + # function (tested later). + @unittest.skipIf(WINDOWS, "worthless on WINDOWS") + def test_connections(self): + # TODO: UNIX sockets are temporarily implemented by parsing + # 'pfiles' cmd output; we don't want that part of the code to + # be executed. + with create_sockets(): + kind = 'inet' if SUNOS else 'all' + self.execute(lambda: self.proc.connections(kind)) + + @unittest.skipIf(not HAS_ENVIRON, "not supported") + def test_environ(self): + self.execute(self.proc.environ) + + @unittest.skipIf(not WINDOWS, "WINDOWS only") + def test_proc_info(self): + self.execute(lambda: cext.proc_info(os.getpid())) + + +class TestTerminatedProcessLeaks(TestProcessObjectLeaks): + """Repeat the tests above looking for leaks occurring when dealing + with terminated processes raising NoSuchProcess exception. + The C functions are still invoked but will follow different code + paths. We'll check those code paths. + """ + + @classmethod + def setUpClass(cls): + super().setUpClass() + cls.subp = spawn_testproc() + cls.proc = psutil.Process(cls.subp.pid) + cls.proc.kill() + cls.proc.wait() + + @classmethod + def tearDownClass(cls): + super().tearDownClass() + terminate(cls.subp) + + def call(self, fun): + try: + fun() + except psutil.NoSuchProcess: + pass + + if WINDOWS: + + def test_kill(self): + self.execute(self.proc.kill) + + def test_terminate(self): + self.execute(self.proc.terminate) + + def test_suspend(self): + self.execute(self.proc.suspend) + + def test_resume(self): + self.execute(self.proc.resume) + + def test_wait(self): + self.execute(self.proc.wait) + + def test_proc_info(self): + # test dual implementation + def call(): + try: + return cext.proc_info(self.proc.pid) + except ProcessLookupError: + pass + + self.execute(call) + + +@unittest.skipIf(not WINDOWS, "WINDOWS only") +class TestProcessDualImplementation(TestMemoryLeak): + + def test_cmdline_peb_true(self): + self.execute(lambda: cext.proc_cmdline(os.getpid(), use_peb=True)) + + def test_cmdline_peb_false(self): + self.execute(lambda: cext.proc_cmdline(os.getpid(), use_peb=False)) + + +# =================================================================== +# system APIs +# =================================================================== + + +class TestModuleFunctionsLeaks(TestMemoryLeak): + """Test leaks of psutil module functions.""" + + def test_coverage(self): + ns = system_namespace() + ns.test_class_coverage(self, ns.all) + + # --- cpu + + @fewtimes_if_linux() + def test_cpu_count(self): # logical + self.execute(lambda: psutil.cpu_count(logical=True)) + + @fewtimes_if_linux() + def test_cpu_count_cores(self): + self.execute(lambda: psutil.cpu_count(logical=False)) + + @fewtimes_if_linux() + def test_cpu_times(self): + self.execute(psutil.cpu_times) + + @fewtimes_if_linux() + def test_per_cpu_times(self): + self.execute(lambda: psutil.cpu_times(percpu=True)) + + @fewtimes_if_linux() + def test_cpu_stats(self): + self.execute(psutil.cpu_stats) + + @fewtimes_if_linux() + # TODO: remove this once 1892 is fixed + @unittest.skipIf(MACOS and platform.machine() == 'arm64', + "skipped due to #1892") + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_cpu_freq(self): + self.execute(psutil.cpu_freq) + + @unittest.skipIf(not WINDOWS, "WINDOWS only") + def test_getloadavg(self): + psutil.getloadavg() + self.execute(psutil.getloadavg) + + # --- mem + + def test_virtual_memory(self): + self.execute(psutil.virtual_memory) + + # TODO: remove this skip when this gets fixed + @unittest.skipIf(SUNOS, "worthless on SUNOS (uses a subprocess)") + def test_swap_memory(self): + self.execute(psutil.swap_memory) + + def test_pid_exists(self): + times = FEW_TIMES if POSIX else self.times + self.execute(lambda: psutil.pid_exists(os.getpid()), times=times) + + # --- disk + + def test_disk_usage(self): + times = FEW_TIMES if POSIX else self.times + self.execute(lambda: psutil.disk_usage('.'), times=times) + + def test_disk_partitions(self): + self.execute(psutil.disk_partitions) + + @unittest.skipIf(LINUX and not os.path.exists('/proc/diskstats'), + '/proc/diskstats not available on this Linux version') + @fewtimes_if_linux() + def test_disk_io_counters(self): + self.execute(lambda: psutil.disk_io_counters(nowrap=False)) + + # --- proc + + @fewtimes_if_linux() + def test_pids(self): + self.execute(psutil.pids) + + # --- net + + @fewtimes_if_linux() + @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') + def test_net_io_counters(self): + self.execute(lambda: psutil.net_io_counters(nowrap=False)) + + @fewtimes_if_linux() + @unittest.skipIf(MACOS and os.getuid() != 0, "need root access") + def test_net_connections(self): + # always opens and handle on Windows() (once) + psutil.net_connections(kind='all') + with create_sockets(): + self.execute(lambda: psutil.net_connections(kind='all')) + + def test_net_if_addrs(self): + # Note: verified that on Windows this was a false positive. + tolerance = 80 * 1024 if WINDOWS else self.tolerance + self.execute(psutil.net_if_addrs, tolerance=tolerance) + + def test_net_if_stats(self): + self.execute(psutil.net_if_stats) + + # --- sensors + + @fewtimes_if_linux() + @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") + def test_sensors_battery(self): + self.execute(psutil.sensors_battery) + + @fewtimes_if_linux() + @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") + def test_sensors_temperatures(self): + self.execute(psutil.sensors_temperatures) + + @fewtimes_if_linux() + @unittest.skipIf(not HAS_SENSORS_FANS, "not supported") + def test_sensors_fans(self): + self.execute(psutil.sensors_fans) + + # --- others + + @fewtimes_if_linux() + def test_boot_time(self): + self.execute(psutil.boot_time) + + def test_users(self): + self.execute(psutil.users) + + def test_set_debug(self): + self.execute(lambda: psutil._set_debug(False)) + + if WINDOWS: + + # --- win services + + def test_win_service_iter(self): + self.execute(cext.winservice_enumerate) + + def test_win_service_get(self): + pass + + def test_win_service_get_config(self): + name = next(psutil.win_service_iter()).name() + self.execute(lambda: cext.winservice_query_config(name)) + + def test_win_service_get_status(self): + name = next(psutil.win_service_iter()).name() + self.execute(lambda: cext.winservice_query_status(name)) + + def test_win_service_get_description(self): + name = next(psutil.win_service_iter()).name() + self.execute(lambda: cext.winservice_query_descr(name)) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_misc.py b/lib/psutil/tests/test_misc.py new file mode 100644 index 0000000..e22789c --- /dev/null +++ b/lib/psutil/tests/test_misc.py @@ -0,0 +1,852 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Miscellaneous tests. +""" + +import ast +import collections +import errno +import json +import os +import pickle +import socket +import stat +import unittest + +import psutil +import psutil.tests +from psutil import LINUX +from psutil import POSIX +from psutil import WINDOWS +from psutil._common import bcat +from psutil._common import cat +from psutil._common import debug +from psutil._common import isfile_strict +from psutil._common import memoize +from psutil._common import memoize_when_activated +from psutil._common import parse_environ_block +from psutil._common import supports_ipv6 +from psutil._common import wrap_numbers +from psutil._compat import PY3 +from psutil._compat import FileNotFoundError +from psutil._compat import redirect_stderr +from psutil.tests import APPVEYOR +from psutil.tests import CI_TESTING +from psutil.tests import HAS_BATTERY +from psutil.tests import HAS_MEMORY_MAPS +from psutil.tests import HAS_NET_IO_COUNTERS +from psutil.tests import HAS_SENSORS_BATTERY +from psutil.tests import HAS_SENSORS_FANS +from psutil.tests import HAS_SENSORS_TEMPERATURES +from psutil.tests import PYTHON_EXE +from psutil.tests import ROOT_DIR +from psutil.tests import SCRIPTS_DIR +from psutil.tests import PsutilTestCase +from psutil.tests import import_module_by_path +from psutil.tests import mock +from psutil.tests import reload_module +from psutil.tests import sh + + +# =================================================================== +# --- Test classes' repr(), str(), ... +# =================================================================== + + +class TestSpecialMethods(PsutilTestCase): + + def test_process__repr__(self, func=repr): + p = psutil.Process(self.spawn_testproc().pid) + r = func(p) + self.assertIn("psutil.Process", r) + self.assertIn("pid=%s" % p.pid, r) + self.assertIn("name='%s'" % str(p.name()), + r.replace("name=u'", "name='")) + self.assertIn("status=", r) + self.assertNotIn("exitcode=", r) + p.terminate() + p.wait() + r = func(p) + self.assertIn("status='terminated'", r) + self.assertIn("exitcode=", r) + + with mock.patch.object(psutil.Process, "name", + side_effect=psutil.ZombieProcess(os.getpid())): + p = psutil.Process() + r = func(p) + self.assertIn("pid=%s" % p.pid, r) + self.assertIn("status='zombie'", r) + self.assertNotIn("name=", r) + with mock.patch.object(psutil.Process, "name", + side_effect=psutil.NoSuchProcess(os.getpid())): + p = psutil.Process() + r = func(p) + self.assertIn("pid=%s" % p.pid, r) + self.assertIn("terminated", r) + self.assertNotIn("name=", r) + with mock.patch.object(psutil.Process, "name", + side_effect=psutil.AccessDenied(os.getpid())): + p = psutil.Process() + r = func(p) + self.assertIn("pid=%s" % p.pid, r) + self.assertNotIn("name=", r) + + def test_process__str__(self): + self.test_process__repr__(func=str) + + def test_error__repr__(self): + self.assertEqual(repr(psutil.Error()), "psutil.Error()") + + def test_error__str__(self): + self.assertEqual(str(psutil.Error()), "") + + def test_no_such_process__repr__(self): + self.assertEqual( + repr(psutil.NoSuchProcess(321)), + "psutil.NoSuchProcess(pid=321, msg='process no longer exists')") + self.assertEqual( + repr(psutil.NoSuchProcess(321, name="name", msg="msg")), + "psutil.NoSuchProcess(pid=321, name='name', msg='msg')") + + def test_no_such_process__str__(self): + self.assertEqual( + str(psutil.NoSuchProcess(321)), + "process no longer exists (pid=321)") + self.assertEqual( + str(psutil.NoSuchProcess(321, name="name", msg="msg")), + "msg (pid=321, name='name')") + + def test_zombie_process__repr__(self): + self.assertEqual( + repr(psutil.ZombieProcess(321)), + 'psutil.ZombieProcess(pid=321, msg="PID still ' + 'exists but it\'s a zombie")') + self.assertEqual( + repr(psutil.ZombieProcess(321, name="name", ppid=320, msg="foo")), + "psutil.ZombieProcess(pid=321, ppid=320, name='name', msg='foo')") + + def test_zombie_process__str__(self): + self.assertEqual( + str(psutil.ZombieProcess(321)), + "PID still exists but it's a zombie (pid=321)") + self.assertEqual( + str(psutil.ZombieProcess(321, name="name", ppid=320, msg="foo")), + "foo (pid=321, ppid=320, name='name')") + + def test_access_denied__repr__(self): + self.assertEqual( + repr(psutil.AccessDenied(321)), + "psutil.AccessDenied(pid=321)") + self.assertEqual( + repr(psutil.AccessDenied(321, name="name", msg="msg")), + "psutil.AccessDenied(pid=321, name='name', msg='msg')") + + def test_access_denied__str__(self): + self.assertEqual( + str(psutil.AccessDenied(321)), + "(pid=321)") + self.assertEqual( + str(psutil.AccessDenied(321, name="name", msg="msg")), + "msg (pid=321, name='name')") + + def test_timeout_expired__repr__(self): + self.assertEqual( + repr(psutil.TimeoutExpired(5)), + "psutil.TimeoutExpired(seconds=5, msg='timeout after 5 seconds')") + self.assertEqual( + repr(psutil.TimeoutExpired(5, pid=321, name="name")), + "psutil.TimeoutExpired(pid=321, name='name', seconds=5, " + "msg='timeout after 5 seconds')") + + def test_timeout_expired__str__(self): + self.assertEqual( + str(psutil.TimeoutExpired(5)), + "timeout after 5 seconds") + self.assertEqual( + str(psutil.TimeoutExpired(5, pid=321, name="name")), + "timeout after 5 seconds (pid=321, name='name')") + + def test_process__eq__(self): + p1 = psutil.Process() + p2 = psutil.Process() + self.assertEqual(p1, p2) + p2._ident = (0, 0) + self.assertNotEqual(p1, p2) + self.assertNotEqual(p1, 'foo') + + def test_process__hash__(self): + s = set([psutil.Process(), psutil.Process()]) + self.assertEqual(len(s), 1) + + +# =================================================================== +# --- Misc, generic, corner cases +# =================================================================== + + +class TestMisc(PsutilTestCase): + + def test__all__(self): + dir_psutil = dir(psutil) + for name in dir_psutil: + if name in ('long', 'tests', 'test', 'PermissionError', + 'ProcessLookupError'): + continue + if not name.startswith('_'): + try: + __import__(name) + except ImportError: + if name not in psutil.__all__: + fun = getattr(psutil, name) + if fun is None: + continue + if (fun.__doc__ is not None and + 'deprecated' not in fun.__doc__.lower()): + raise self.fail('%r not in psutil.__all__' % name) + + # Import 'star' will break if __all__ is inconsistent, see: + # https://github.com/giampaolo/psutil/issues/656 + # Can't do `from psutil import *` as it won't work on python 3 + # so we simply iterate over __all__. + for name in psutil.__all__: + self.assertIn(name, dir_psutil) + + def test_version(self): + self.assertEqual('.'.join([str(x) for x in psutil.version_info]), + psutil.__version__) + + def test_process_as_dict_no_new_names(self): + # See https://github.com/giampaolo/psutil/issues/813 + p = psutil.Process() + p.foo = '1' + self.assertNotIn('foo', p.as_dict()) + + def test_serialization(self): + def check(ret): + if json is not None: + json.loads(json.dumps(ret)) + a = pickle.dumps(ret) + b = pickle.loads(a) + self.assertEqual(ret, b) + + check(psutil.Process().as_dict()) + check(psutil.virtual_memory()) + check(psutil.swap_memory()) + check(psutil.cpu_times()) + check(psutil.cpu_times_percent(interval=0)) + check(psutil.net_io_counters()) + if LINUX and not os.path.exists('/proc/diskstats'): + pass + else: + if not APPVEYOR: + check(psutil.disk_io_counters()) + check(psutil.disk_partitions()) + check(psutil.disk_usage(os.getcwd())) + check(psutil.users()) + + # XXX: https://github.com/pypa/setuptools/pull/2896 + @unittest.skipIf(APPVEYOR, "temporarily disabled due to setuptools bug") + def test_setup_script(self): + setup_py = os.path.join(ROOT_DIR, 'setup.py') + if CI_TESTING and not os.path.exists(setup_py): + return self.skipTest("can't find setup.py") + module = import_module_by_path(setup_py) + self.assertRaises(SystemExit, module.setup) + self.assertEqual(module.get_version(), psutil.__version__) + + def test_ad_on_process_creation(self): + # We are supposed to be able to instantiate Process also in case + # of zombie processes or access denied. + with mock.patch.object(psutil.Process, 'create_time', + side_effect=psutil.AccessDenied) as meth: + psutil.Process() + assert meth.called + with mock.patch.object(psutil.Process, 'create_time', + side_effect=psutil.ZombieProcess(1)) as meth: + psutil.Process() + assert meth.called + with mock.patch.object(psutil.Process, 'create_time', + side_effect=ValueError) as meth: + with self.assertRaises(ValueError): + psutil.Process() + assert meth.called + + def test_sanity_version_check(self): + # see: https://github.com/giampaolo/psutil/issues/564 + with mock.patch( + "psutil._psplatform.cext.version", return_value="0.0.0"): + with self.assertRaises(ImportError) as cm: + reload_module(psutil) + self.assertIn("version conflict", str(cm.exception).lower()) + + +# =================================================================== +# --- psutil/_common.py utils +# =================================================================== + + +class TestCommonModule(PsutilTestCase): + + def test_memoize(self): + @memoize + def foo(*args, **kwargs): + """foo docstring""" + calls.append(None) + return (args, kwargs) + + calls = [] + # no args + for x in range(2): + ret = foo() + expected = ((), {}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 1) + # with args + for x in range(2): + ret = foo(1) + expected = ((1, ), {}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 2) + # with args + kwargs + for x in range(2): + ret = foo(1, bar=2) + expected = ((1, ), {'bar': 2}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 3) + # clear cache + foo.cache_clear() + ret = foo() + expected = ((), {}) + self.assertEqual(ret, expected) + self.assertEqual(len(calls), 4) + # docstring + self.assertEqual(foo.__doc__, "foo docstring") + + def test_memoize_when_activated(self): + class Foo: + + @memoize_when_activated + def foo(self): + calls.append(None) + + f = Foo() + calls = [] + f.foo() + f.foo() + self.assertEqual(len(calls), 2) + + # activate + calls = [] + f.foo.cache_activate(f) + f.foo() + f.foo() + self.assertEqual(len(calls), 1) + + # deactivate + calls = [] + f.foo.cache_deactivate(f) + f.foo() + f.foo() + self.assertEqual(len(calls), 2) + + def test_parse_environ_block(self): + def k(s): + return s.upper() if WINDOWS else s + + self.assertEqual(parse_environ_block("a=1\0"), + {k("a"): "1"}) + self.assertEqual(parse_environ_block("a=1\0b=2\0\0"), + {k("a"): "1", k("b"): "2"}) + self.assertEqual(parse_environ_block("a=1\0b=\0\0"), + {k("a"): "1", k("b"): ""}) + # ignore everything after \0\0 + self.assertEqual(parse_environ_block("a=1\0b=2\0\0c=3\0"), + {k("a"): "1", k("b"): "2"}) + # ignore everything that is not an assignment + self.assertEqual(parse_environ_block("xxx\0a=1\0"), {k("a"): "1"}) + self.assertEqual(parse_environ_block("a=1\0=b=2\0"), {k("a"): "1"}) + # do not fail if the block is incomplete + self.assertEqual(parse_environ_block("a=1\0b=2"), {k("a"): "1"}) + + def test_supports_ipv6(self): + self.addCleanup(supports_ipv6.cache_clear) + if supports_ipv6(): + with mock.patch('psutil._common.socket') as s: + s.has_ipv6 = False + supports_ipv6.cache_clear() + assert not supports_ipv6() + + supports_ipv6.cache_clear() + with mock.patch('psutil._common.socket.socket', + side_effect=socket.error) as s: + assert not supports_ipv6() + assert s.called + + supports_ipv6.cache_clear() + with mock.patch('psutil._common.socket.socket', + side_effect=socket.gaierror) as s: + assert not supports_ipv6() + supports_ipv6.cache_clear() + assert s.called + + supports_ipv6.cache_clear() + with mock.patch('psutil._common.socket.socket.bind', + side_effect=socket.gaierror) as s: + assert not supports_ipv6() + supports_ipv6.cache_clear() + assert s.called + else: + with self.assertRaises(socket.error): + sock = socket.socket(socket.AF_INET6, socket.SOCK_STREAM) + try: + sock.bind(("::1", 0)) + finally: + sock.close() + + def test_isfile_strict(self): + this_file = os.path.abspath(__file__) + assert isfile_strict(this_file) + assert not isfile_strict(os.path.dirname(this_file)) + with mock.patch('psutil._common.os.stat', + side_effect=OSError(errno.EPERM, "foo")): + self.assertRaises(OSError, isfile_strict, this_file) + with mock.patch('psutil._common.os.stat', + side_effect=OSError(errno.EACCES, "foo")): + self.assertRaises(OSError, isfile_strict, this_file) + with mock.patch('psutil._common.os.stat', + side_effect=OSError(errno.ENOENT, "foo")): + assert not isfile_strict(this_file) + with mock.patch('psutil._common.stat.S_ISREG', return_value=False): + assert not isfile_strict(this_file) + + def test_debug(self): + if PY3: + from io import StringIO + else: + from StringIO import StringIO + + with redirect_stderr(StringIO()) as f: + debug("hello") + msg = f.getvalue() + assert msg.startswith("psutil-debug"), msg + self.assertIn("hello", msg) + self.assertIn(__file__.replace('.pyc', '.py'), msg) + + # supposed to use repr(exc) + with redirect_stderr(StringIO()) as f: + debug(ValueError("this is an error")) + msg = f.getvalue() + self.assertIn("ignoring ValueError", msg) + self.assertIn("'this is an error'", msg) + + # supposed to use str(exc), because of extra info about file name + with redirect_stderr(StringIO()) as f: + exc = OSError(2, "no such file") + exc.filename = "/foo" + debug(exc) + msg = f.getvalue() + self.assertIn("no such file", msg) + self.assertIn("/foo", msg) + + def test_cat_bcat(self): + testfn = self.get_testfn() + with open(testfn, "wt") as f: + f.write("foo") + self.assertEqual(cat(testfn), "foo") + self.assertEqual(bcat(testfn), b"foo") + self.assertRaises(FileNotFoundError, cat, testfn + '-invalid') + self.assertRaises(FileNotFoundError, bcat, testfn + '-invalid') + self.assertEqual(cat(testfn + '-invalid', fallback="bar"), "bar") + self.assertEqual(bcat(testfn + '-invalid', fallback="bar"), "bar") + + +# =================================================================== +# --- Tests for wrap_numbers() function. +# =================================================================== + + +nt = collections.namedtuple('foo', 'a b c') + + +class TestWrapNumbers(PsutilTestCase): + + def setUp(self): + wrap_numbers.cache_clear() + + tearDown = setUp + + def test_first_call(self): + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_input_hasnt_changed(self): + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_increase_but_no_wrap(self): + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(10, 15, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(20, 25, 30)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(20, 25, 30)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_wrap(self): + # let's say 100 is the threshold + input = {'disk1': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # first wrap restarts from 10 + input = {'disk1': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 110)}) + # then it remains the same + input = {'disk1': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 110)}) + # then it goes up + input = {'disk1': nt(100, 100, 90)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 190)}) + # then it wraps again + input = {'disk1': nt(100, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 210)}) + # and remains the same + input = {'disk1': nt(100, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(100, 100, 210)}) + # now wrap another num + input = {'disk1': nt(50, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(150, 100, 210)}) + # and again + input = {'disk1': nt(40, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(190, 100, 210)}) + # keep it the same + input = {'disk1': nt(40, 100, 20)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(190, 100, 210)}) + + def test_changing_keys(self): + # Emulate a case where the second call to disk_io() + # (or whatever) provides a new disk, then the new disk + # disappears on the third call. + input = {'disk1': nt(5, 5, 5)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(5, 5, 5), + 'disk2': nt(7, 7, 7)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + input = {'disk1': nt(8, 8, 8)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + def test_changing_keys_w_wrap(self): + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # disk 2 wraps + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 110)}) + # disk 2 disappears + input = {'disk1': nt(50, 50, 50)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + + # then it appears again; the old wrap is supposed to be + # gone. + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # remains the same + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 100)} + self.assertEqual(wrap_numbers(input, 'disk_io'), input) + # and then wraps again + input = {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 10)} + self.assertEqual(wrap_numbers(input, 'disk_io'), + {'disk1': nt(50, 50, 50), + 'disk2': nt(100, 100, 110)}) + + def test_real_data(self): + d = {'nvme0n1': (300, 508, 640, 1571, 5970, 1987, 2049, 451751, 47048), + 'nvme0n1p1': (1171, 2, 5600256, 1024, 516, 0, 0, 0, 8), + 'nvme0n1p2': (54, 54, 2396160, 5165056, 4, 24, 30, 1207, 28), + 'nvme0n1p3': (2389, 4539, 5154, 150, 4828, 1844, 2019, 398, 348)} + self.assertEqual(wrap_numbers(d, 'disk_io'), d) + self.assertEqual(wrap_numbers(d, 'disk_io'), d) + # decrease this ↓ + d = {'nvme0n1': (100, 508, 640, 1571, 5970, 1987, 2049, 451751, 47048), + 'nvme0n1p1': (1171, 2, 5600256, 1024, 516, 0, 0, 0, 8), + 'nvme0n1p2': (54, 54, 2396160, 5165056, 4, 24, 30, 1207, 28), + 'nvme0n1p3': (2389, 4539, 5154, 150, 4828, 1844, 2019, 398, 348)} + out = wrap_numbers(d, 'disk_io') + self.assertEqual(out['nvme0n1'][0], 400) + + # --- cache tests + + def test_cache_first_call(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual(cache[1], {'disk_io': {}}) + self.assertEqual(cache[2], {'disk_io': {}}) + + def test_cache_call_twice(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + input = {'disk1': nt(10, 10, 10)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 0}}) + self.assertEqual(cache[2], {'disk_io': {}}) + + def test_cache_wrap(self): + # let's say 100 is the threshold + input = {'disk1': nt(100, 100, 100)} + wrap_numbers(input, 'disk_io') + + # first wrap restarts from 10 + input = {'disk1': nt(100, 100, 10)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 100}}) + self.assertEqual(cache[2], {'disk_io': {'disk1': set([('disk1', 2)])}}) + + def assert_(): + cache = wrap_numbers.cache_info() + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, + ('disk1', 2): 100}}) + self.assertEqual(cache[2], + {'disk_io': {'disk1': set([('disk1', 2)])}}) + + # then it remains the same + input = {'disk1': nt(100, 100, 10)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + assert_() + + # then it goes up + input = {'disk1': nt(100, 100, 90)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + assert_() + + # then it wraps again + input = {'disk1': nt(100, 100, 20)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 190}}) + self.assertEqual(cache[2], {'disk_io': {'disk1': set([('disk1', 2)])}}) + + def test_cache_changing_keys(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + input = {'disk1': nt(5, 5, 5), + 'disk2': nt(7, 7, 7)} + wrap_numbers(input, 'disk_io') + cache = wrap_numbers.cache_info() + self.assertEqual(cache[0], {'disk_io': input}) + self.assertEqual( + cache[1], + {'disk_io': {('disk1', 0): 0, ('disk1', 1): 0, ('disk1', 2): 0}}) + self.assertEqual(cache[2], {'disk_io': {}}) + + def test_cache_clear(self): + input = {'disk1': nt(5, 5, 5)} + wrap_numbers(input, 'disk_io') + wrap_numbers(input, 'disk_io') + wrap_numbers.cache_clear('disk_io') + self.assertEqual(wrap_numbers.cache_info(), ({}, {}, {})) + wrap_numbers.cache_clear('disk_io') + wrap_numbers.cache_clear('?!?') + + @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') + def test_cache_clear_public_apis(self): + if not psutil.disk_io_counters() or not psutil.net_io_counters(): + return self.skipTest("no disks or NICs available") + psutil.disk_io_counters() + psutil.net_io_counters() + caches = wrap_numbers.cache_info() + for cache in caches: + self.assertIn('psutil.disk_io_counters', cache) + self.assertIn('psutil.net_io_counters', cache) + + psutil.disk_io_counters.cache_clear() + caches = wrap_numbers.cache_info() + for cache in caches: + self.assertIn('psutil.net_io_counters', cache) + self.assertNotIn('psutil.disk_io_counters', cache) + + psutil.net_io_counters.cache_clear() + caches = wrap_numbers.cache_info() + self.assertEqual(caches, ({}, {}, {})) + + +# =================================================================== +# --- Example script tests +# =================================================================== + + +@unittest.skipIf(not os.path.exists(SCRIPTS_DIR), + "can't locate scripts directory") +class TestScripts(PsutilTestCase): + """Tests for scripts in the "scripts" directory.""" + + @staticmethod + def assert_stdout(exe, *args, **kwargs): + exe = '%s' % os.path.join(SCRIPTS_DIR, exe) + cmd = [PYTHON_EXE, exe] + for arg in args: + cmd.append(arg) + try: + out = sh(cmd, **kwargs).strip() + except RuntimeError as err: + if 'AccessDenied' in str(err): + return str(err) + else: + raise + assert out, out + return out + + @staticmethod + def assert_syntax(exe, args=None): + exe = os.path.join(SCRIPTS_DIR, exe) + if PY3: + f = open(exe, 'rt', encoding='utf8') + else: + f = open(exe, 'rt') + with f: + src = f.read() + ast.parse(src) + + def test_coverage(self): + # make sure all example scripts have a test method defined + meths = dir(self) + for name in os.listdir(SCRIPTS_DIR): + if name.endswith('.py'): + if 'test_' + os.path.splitext(name)[0] not in meths: + # self.assert_stdout(name) + raise self.fail('no test defined for %r script' + % os.path.join(SCRIPTS_DIR, name)) + + @unittest.skipIf(not POSIX, "POSIX only") + def test_executable(self): + for root, dirs, files in os.walk(SCRIPTS_DIR): + for file in files: + if file.endswith('.py'): + path = os.path.join(root, file) + if not stat.S_IXUSR & os.stat(path)[stat.ST_MODE]: + raise self.fail('%r is not executable' % path) + + def test_disk_usage(self): + self.assert_stdout('disk_usage.py') + + def test_free(self): + self.assert_stdout('free.py') + + def test_meminfo(self): + self.assert_stdout('meminfo.py') + + def test_procinfo(self): + self.assert_stdout('procinfo.py', str(os.getpid())) + + @unittest.skipIf(CI_TESTING and not psutil.users(), "no users") + def test_who(self): + self.assert_stdout('who.py') + + def test_ps(self): + self.assert_stdout('ps.py') + + def test_pstree(self): + self.assert_stdout('pstree.py') + + def test_netstat(self): + self.assert_stdout('netstat.py') + + def test_ifconfig(self): + self.assert_stdout('ifconfig.py') + + @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") + def test_pmap(self): + self.assert_stdout('pmap.py', str(os.getpid())) + + def test_procsmem(self): + if 'uss' not in psutil.Process().memory_full_info()._fields: + raise self.skipTest("not supported") + self.assert_stdout('procsmem.py') + + def test_killall(self): + self.assert_syntax('killall.py') + + def test_nettop(self): + self.assert_syntax('nettop.py') + + def test_top(self): + self.assert_syntax('top.py') + + def test_iotop(self): + self.assert_syntax('iotop.py') + + def test_pidof(self): + output = self.assert_stdout('pidof.py', psutil.Process().name()) + self.assertIn(str(os.getpid()), output) + + @unittest.skipIf(not WINDOWS, "WINDOWS only") + def test_winservices(self): + self.assert_stdout('winservices.py') + + def test_cpu_distribution(self): + self.assert_syntax('cpu_distribution.py') + + @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") + def test_temperatures(self): + if not psutil.sensors_temperatures(): + self.skipTest("no temperatures") + self.assert_stdout('temperatures.py') + + @unittest.skipIf(not HAS_SENSORS_FANS, "not supported") + def test_fans(self): + if not psutil.sensors_fans(): + self.skipTest("no fans") + self.assert_stdout('fans.py') + + @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_battery(self): + self.assert_stdout('battery.py') + + @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_sensors(self): + self.assert_stdout('sensors.py') + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_osx.py b/lib/psutil/tests/test_osx.py new file mode 100644 index 0000000..af12648 --- /dev/null +++ b/lib/psutil/tests/test_osx.py @@ -0,0 +1,241 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""macOS specific tests.""" + +import platform +import re +import time +import unittest + +import psutil +from psutil import MACOS +from psutil import POSIX +from psutil.tests import HAS_BATTERY +from psutil.tests import TOLERANCE_DISK_USAGE +from psutil.tests import TOLERANCE_SYS_MEM +from psutil.tests import PsutilTestCase +from psutil.tests import retry_on_failure +from psutil.tests import sh +from psutil.tests import spawn_testproc +from psutil.tests import terminate + + +if POSIX: + from psutil._psutil_posix import getpagesize + + +def sysctl(cmdline): + """Expects a sysctl command with an argument and parse the result + returning only the value of interest. + """ + out = sh(cmdline) + result = out.split()[1] + try: + return int(result) + except ValueError: + return result + + +def vm_stat(field): + """Wrapper around 'vm_stat' cmdline utility.""" + out = sh('vm_stat') + for line in out.split('\n'): + if field in line: + break + else: + raise ValueError("line not found") + return int(re.search(r'\d+', line).group(0)) * getpagesize() + + +# http://code.activestate.com/recipes/578019/ +def human2bytes(s): + SYMBOLS = { + 'customary': ('B', 'K', 'M', 'G', 'T', 'P', 'E', 'Z', 'Y'), + } + init = s + num = "" + while s and s[0:1].isdigit() or s[0:1] == '.': + num += s[0] + s = s[1:] + num = float(num) + letter = s.strip() + for name, sset in SYMBOLS.items(): + if letter in sset: + break + else: + if letter == 'k': + sset = SYMBOLS['customary'] + letter = letter.upper() + else: + raise ValueError("can't interpret %r" % init) + prefix = {sset[0]: 1} + for i, s in enumerate(sset[1:]): + prefix[s] = 1 << (i + 1) * 10 + return int(num * prefix[letter]) + + +@unittest.skipIf(not MACOS, "MACOS only") +class TestProcess(PsutilTestCase): + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc().pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + def test_process_create_time(self): + output = sh("ps -o lstart -p %s" % self.pid) + start_ps = output.replace('STARTED', '').strip() + hhmmss = start_ps.split(' ')[-2] + year = start_ps.split(' ')[-1] + start_psutil = psutil.Process(self.pid).create_time() + self.assertEqual( + hhmmss, + time.strftime("%H:%M:%S", time.localtime(start_psutil))) + self.assertEqual( + year, + time.strftime("%Y", time.localtime(start_psutil))) + + +@unittest.skipIf(not MACOS, "MACOS only") +class TestSystemAPIs(PsutilTestCase): + + # --- disk + + @retry_on_failure() + def test_disks(self): + # test psutil.disk_usage() and psutil.disk_partitions() + # against "df -a" + def df(path): + out = sh('df -k "%s"' % path).strip() + lines = out.split('\n') + lines.pop(0) + line = lines.pop(0) + dev, total, used, free = line.split()[:4] + if dev == 'none': + dev = '' + total = int(total) * 1024 + used = int(used) * 1024 + free = int(free) * 1024 + return dev, total, used, free + + for part in psutil.disk_partitions(all=False): + usage = psutil.disk_usage(part.mountpoint) + dev, total, used, free = df(part.mountpoint) + self.assertEqual(part.device, dev) + self.assertEqual(usage.total, total) + self.assertAlmostEqual(usage.free, free, + delta=TOLERANCE_DISK_USAGE) + self.assertAlmostEqual(usage.used, used, + delta=TOLERANCE_DISK_USAGE) + + # --- cpu + + def test_cpu_count_logical(self): + num = sysctl("sysctl hw.logicalcpu") + self.assertEqual(num, psutil.cpu_count(logical=True)) + + def test_cpu_count_cores(self): + num = sysctl("sysctl hw.physicalcpu") + self.assertEqual(num, psutil.cpu_count(logical=False)) + + # TODO: remove this once 1892 is fixed + @unittest.skipIf(platform.machine() == 'arm64', "skipped due to #1892") + def test_cpu_freq(self): + freq = psutil.cpu_freq() + self.assertEqual( + freq.current * 1000 * 1000, sysctl("sysctl hw.cpufrequency")) + self.assertEqual( + freq.min * 1000 * 1000, sysctl("sysctl hw.cpufrequency_min")) + self.assertEqual( + freq.max * 1000 * 1000, sysctl("sysctl hw.cpufrequency_max")) + + # --- virtual mem + + def test_vmem_total(self): + sysctl_hwphymem = sysctl('sysctl hw.memsize') + self.assertEqual(sysctl_hwphymem, psutil.virtual_memory().total) + + @retry_on_failure() + def test_vmem_free(self): + vmstat_val = vm_stat("free") + psutil_val = psutil.virtual_memory().free + self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_active(self): + vmstat_val = vm_stat("active") + psutil_val = psutil.virtual_memory().active + self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_inactive(self): + vmstat_val = vm_stat("inactive") + psutil_val = psutil.virtual_memory().inactive + self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_vmem_wired(self): + vmstat_val = vm_stat("wired") + psutil_val = psutil.virtual_memory().wired + self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM) + + # --- swap mem + + @retry_on_failure() + def test_swapmem_sin(self): + vmstat_val = vm_stat("Pageins") + psutil_val = psutil.swap_memory().sin + self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM) + + @retry_on_failure() + def test_swapmem_sout(self): + vmstat_val = vm_stat("Pageout") + psutil_val = psutil.swap_memory().sout + self.assertAlmostEqual(psutil_val, vmstat_val, delta=TOLERANCE_SYS_MEM) + + # Not very reliable. + # def test_swapmem_total(self): + # out = sh('sysctl vm.swapusage') + # out = out.replace('vm.swapusage: ', '') + # total, used, free = re.findall('\d+.\d+\w', out) + # psutil_smem = psutil.swap_memory() + # self.assertEqual(psutil_smem.total, human2bytes(total)) + # self.assertEqual(psutil_smem.used, human2bytes(used)) + # self.assertEqual(psutil_smem.free, human2bytes(free)) + + # --- network + + def test_net_if_stats(self): + for name, stats in psutil.net_if_stats().items(): + try: + out = sh("ifconfig %s" % name) + except RuntimeError: + pass + else: + self.assertEqual(stats.isup, 'RUNNING' in out, msg=out) + self.assertEqual(stats.mtu, + int(re.findall(r'mtu (\d+)', out)[0])) + + # --- sensors_battery + + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_sensors_battery(self): + out = sh("pmset -g batt") + percent = re.search(r"(\d+)%", out).group(1) + drawing_from = re.search("Now drawing from '([^']+)'", out).group(1) + power_plugged = drawing_from == "AC Power" + psutil_result = psutil.sensors_battery() + self.assertEqual(psutil_result.power_plugged, power_plugged) + self.assertEqual(psutil_result.percent, int(percent)) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_posix.py b/lib/psutil/tests/test_posix.py new file mode 100644 index 0000000..d873223 --- /dev/null +++ b/lib/psutil/tests/test_posix.py @@ -0,0 +1,432 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""POSIX specific tests.""" + +import datetime +import errno +import os +import re +import subprocess +import time +import unittest + +import psutil +from psutil import AIX +from psutil import BSD +from psutil import LINUX +from psutil import MACOS +from psutil import OPENBSD +from psutil import POSIX +from psutil import SUNOS +from psutil.tests import CI_TESTING +from psutil.tests import HAS_NET_IO_COUNTERS +from psutil.tests import PYTHON_EXE +from psutil.tests import PsutilTestCase +from psutil.tests import mock +from psutil.tests import retry_on_failure +from psutil.tests import sh +from psutil.tests import skip_on_access_denied +from psutil.tests import spawn_testproc +from psutil.tests import terminate +from psutil.tests import which + + +if POSIX: + import mmap + import resource + + from psutil._psutil_posix import getpagesize + + +def ps(fmt, pid=None): + """ + Wrapper for calling the ps command with a little bit of cross-platform + support for a narrow range of features. + """ + + cmd = ['ps'] + + if LINUX: + cmd.append('--no-headers') + + if pid is not None: + cmd.extend(['-p', str(pid)]) + else: + if SUNOS or AIX: + cmd.append('-A') + else: + cmd.append('ax') + + if SUNOS: + fmt_map = set(('command', 'comm', 'start', 'stime')) + fmt = fmt_map.get(fmt, fmt) + + cmd.extend(['-o', fmt]) + + output = sh(cmd) + + if LINUX: + output = output.splitlines() + else: + output = output.splitlines()[1:] + + all_output = [] + for line in output: + line = line.strip() + + try: + line = int(line) + except ValueError: + pass + + all_output.append(line) + + if pid is None: + return all_output + else: + return all_output[0] + +# ps "-o" field names differ wildly between platforms. +# "comm" means "only executable name" but is not available on BSD platforms. +# "args" means "command with all its arguments", and is also not available +# on BSD platforms. +# "command" is like "args" on most platforms, but like "comm" on AIX, +# and not available on SUNOS. +# so for the executable name we can use "comm" on Solaris and split "command" +# on other platforms. +# to get the cmdline (with args) we have to use "args" on AIX and +# Solaris, and can use "command" on all others. + + +def ps_name(pid): + field = "command" + if SUNOS: + field = "comm" + return ps(field, pid).split()[0] + + +def ps_args(pid): + field = "command" + if AIX or SUNOS: + field = "args" + return ps(field, pid) + + +def ps_rss(pid): + field = "rss" + if AIX: + field = "rssize" + return ps(field, pid) + + +def ps_vsz(pid): + field = "vsz" + if AIX: + field = "vsize" + return ps(field, pid) + + +@unittest.skipIf(not POSIX, "POSIX only") +class TestProcess(PsutilTestCase): + """Compare psutil results against 'ps' command line utility (mainly).""" + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc([PYTHON_EXE, "-E", "-O"], + stdin=subprocess.PIPE).pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + def test_ppid(self): + ppid_ps = ps('ppid', self.pid) + ppid_psutil = psutil.Process(self.pid).ppid() + self.assertEqual(ppid_ps, ppid_psutil) + + def test_uid(self): + uid_ps = ps('uid', self.pid) + uid_psutil = psutil.Process(self.pid).uids().real + self.assertEqual(uid_ps, uid_psutil) + + def test_gid(self): + gid_ps = ps('rgid', self.pid) + gid_psutil = psutil.Process(self.pid).gids().real + self.assertEqual(gid_ps, gid_psutil) + + def test_username(self): + username_ps = ps('user', self.pid) + username_psutil = psutil.Process(self.pid).username() + self.assertEqual(username_ps, username_psutil) + + def test_username_no_resolution(self): + # Emulate a case where the system can't resolve the uid to + # a username in which case psutil is supposed to return + # the stringified uid. + p = psutil.Process() + with mock.patch("psutil.pwd.getpwuid", side_effect=KeyError) as fun: + self.assertEqual(p.username(), str(p.uids().real)) + assert fun.called + + @skip_on_access_denied() + @retry_on_failure() + def test_rss_memory(self): + # give python interpreter some time to properly initialize + # so that the results are the same + time.sleep(0.1) + rss_ps = ps_rss(self.pid) + rss_psutil = psutil.Process(self.pid).memory_info()[0] / 1024 + self.assertEqual(rss_ps, rss_psutil) + + @skip_on_access_denied() + @retry_on_failure() + def test_vsz_memory(self): + # give python interpreter some time to properly initialize + # so that the results are the same + time.sleep(0.1) + vsz_ps = ps_vsz(self.pid) + vsz_psutil = psutil.Process(self.pid).memory_info()[1] / 1024 + self.assertEqual(vsz_ps, vsz_psutil) + + def test_name(self): + name_ps = ps_name(self.pid) + # remove path if there is any, from the command + name_ps = os.path.basename(name_ps).lower() + name_psutil = psutil.Process(self.pid).name().lower() + # ...because of how we calculate PYTHON_EXE; on MACOS this may + # be "pythonX.Y". + name_ps = re.sub(r"\d.\d", "", name_ps) + name_psutil = re.sub(r"\d.\d", "", name_psutil) + # ...may also be "python.X" + name_ps = re.sub(r"\d", "", name_ps) + name_psutil = re.sub(r"\d", "", name_psutil) + self.assertEqual(name_ps, name_psutil) + + def test_name_long(self): + # On UNIX the kernel truncates the name to the first 15 + # characters. In such a case psutil tries to determine the + # full name from the cmdline. + name = "long-program-name" + cmdline = ["long-program-name-extended", "foo", "bar"] + with mock.patch("psutil._psplatform.Process.name", + return_value=name): + with mock.patch("psutil._psplatform.Process.cmdline", + return_value=cmdline): + p = psutil.Process() + self.assertEqual(p.name(), "long-program-name-extended") + + def test_name_long_cmdline_ad_exc(self): + # Same as above but emulates a case where cmdline() raises + # AccessDenied in which case psutil is supposed to return + # the truncated name instead of crashing. + name = "long-program-name" + with mock.patch("psutil._psplatform.Process.name", + return_value=name): + with mock.patch("psutil._psplatform.Process.cmdline", + side_effect=psutil.AccessDenied(0, "")): + p = psutil.Process() + self.assertEqual(p.name(), "long-program-name") + + def test_name_long_cmdline_nsp_exc(self): + # Same as above but emulates a case where cmdline() raises NSP + # which is supposed to propagate. + name = "long-program-name" + with mock.patch("psutil._psplatform.Process.name", + return_value=name): + with mock.patch("psutil._psplatform.Process.cmdline", + side_effect=psutil.NoSuchProcess(0, "")): + p = psutil.Process() + self.assertRaises(psutil.NoSuchProcess, p.name) + + @unittest.skipIf(MACOS or BSD, 'ps -o start not available') + def test_create_time(self): + time_ps = ps('start', self.pid) + time_psutil = psutil.Process(self.pid).create_time() + time_psutil_tstamp = datetime.datetime.fromtimestamp( + time_psutil).strftime("%H:%M:%S") + # sometimes ps shows the time rounded up instead of down, so we check + # for both possible values + round_time_psutil = round(time_psutil) + round_time_psutil_tstamp = datetime.datetime.fromtimestamp( + round_time_psutil).strftime("%H:%M:%S") + self.assertIn(time_ps, [time_psutil_tstamp, round_time_psutil_tstamp]) + + def test_exe(self): + ps_pathname = ps_name(self.pid) + psutil_pathname = psutil.Process(self.pid).exe() + try: + self.assertEqual(ps_pathname, psutil_pathname) + except AssertionError: + # certain platforms such as BSD are more accurate returning: + # "/usr/local/bin/python2.7" + # ...instead of: + # "/usr/local/bin/python" + # We do not want to consider this difference in accuracy + # an error. + adjusted_ps_pathname = ps_pathname[:len(ps_pathname)] + self.assertEqual(ps_pathname, adjusted_ps_pathname) + + # On macOS the official python installer exposes a python wrapper that + # executes a python executable hidden inside an application bundle inside + # the Python framework. + # There's a race condition between the ps call & the psutil call below + # depending on the completion of the execve call so let's retry on failure + @retry_on_failure() + def test_cmdline(self): + ps_cmdline = ps_args(self.pid) + psutil_cmdline = " ".join(psutil.Process(self.pid).cmdline()) + self.assertEqual(ps_cmdline, psutil_cmdline) + + # On SUNOS "ps" reads niceness /proc/pid/psinfo which returns an + # incorrect value (20); the real deal is getpriority(2) which + # returns 0; psutil relies on it, see: + # https://github.com/giampaolo/psutil/issues/1082 + # AIX has the same issue + @unittest.skipIf(SUNOS, "not reliable on SUNOS") + @unittest.skipIf(AIX, "not reliable on AIX") + def test_nice(self): + ps_nice = ps('nice', self.pid) + psutil_nice = psutil.Process().nice() + self.assertEqual(ps_nice, psutil_nice) + + +@unittest.skipIf(not POSIX, "POSIX only") +class TestSystemAPIs(PsutilTestCase): + """Test some system APIs.""" + + @retry_on_failure() + def test_pids(self): + # Note: this test might fail if the OS is starting/killing + # other processes in the meantime + pids_ps = sorted(ps("pid")) + pids_psutil = psutil.pids() + + # on MACOS and OPENBSD ps doesn't show pid 0 + if MACOS or OPENBSD and 0 not in pids_ps: + pids_ps.insert(0, 0) + + # There will often be one more process in pids_ps for ps itself + if len(pids_ps) - len(pids_psutil) > 1: + difference = [x for x in pids_psutil if x not in pids_ps] + \ + [x for x in pids_ps if x not in pids_psutil] + raise self.fail("difference: " + str(difference)) + + # for some reason ifconfig -a does not report all interfaces + # returned by psutil + @unittest.skipIf(SUNOS, "unreliable on SUNOS") + @unittest.skipIf(not which('ifconfig'), "no ifconfig cmd") + @unittest.skipIf(not HAS_NET_IO_COUNTERS, "not supported") + def test_nic_names(self): + output = sh("ifconfig -a") + for nic in psutil.net_io_counters(pernic=True).keys(): + for line in output.split(): + if line.startswith(nic): + break + else: + raise self.fail( + "couldn't find %s nic in 'ifconfig -a' output\n%s" % ( + nic, output)) + + @unittest.skipIf(CI_TESTING and not psutil.users(), "unreliable on CI") + @retry_on_failure() + def test_users(self): + out = sh("who") + if not out.strip(): + raise self.skipTest("no users on this system") + lines = out.split('\n') + users = [x.split()[0] for x in lines] + terminals = [x.split()[1] for x in lines] + self.assertEqual(len(users), len(psutil.users())) + for u in psutil.users(): + self.assertIn(u.name, users) + self.assertIn(u.terminal, terminals) + + def test_pid_exists_let_raise(self): + # According to "man 2 kill" possible error values for kill + # are (EINVAL, EPERM, ESRCH). Test that any other errno + # results in an exception. + with mock.patch("psutil._psposix.os.kill", + side_effect=OSError(errno.EBADF, "")) as m: + self.assertRaises(OSError, psutil._psposix.pid_exists, os.getpid()) + assert m.called + + def test_os_waitpid_let_raise(self): + # os.waitpid() is supposed to catch EINTR and ECHILD only. + # Test that any other errno results in an exception. + with mock.patch("psutil._psposix.os.waitpid", + side_effect=OSError(errno.EBADF, "")) as m: + self.assertRaises(OSError, psutil._psposix.wait_pid, os.getpid()) + assert m.called + + def test_os_waitpid_eintr(self): + # os.waitpid() is supposed to "retry" on EINTR. + with mock.patch("psutil._psposix.os.waitpid", + side_effect=OSError(errno.EINTR, "")) as m: + self.assertRaises( + psutil._psposix.TimeoutExpired, + psutil._psposix.wait_pid, os.getpid(), timeout=0.01) + assert m.called + + def test_os_waitpid_bad_ret_status(self): + # Simulate os.waitpid() returning a bad status. + with mock.patch("psutil._psposix.os.waitpid", + return_value=(1, -1)) as m: + self.assertRaises(ValueError, + psutil._psposix.wait_pid, os.getpid()) + assert m.called + + # AIX can return '-' in df output instead of numbers, e.g. for /proc + @unittest.skipIf(AIX, "unreliable on AIX") + @retry_on_failure() + def test_disk_usage(self): + def df(device): + out = sh("df -k %s" % device).strip() + line = out.split('\n')[1] + fields = line.split() + total = int(fields[1]) * 1024 + used = int(fields[2]) * 1024 + free = int(fields[3]) * 1024 + percent = float(fields[4].replace('%', '')) + return (total, used, free, percent) + + tolerance = 4 * 1024 * 1024 # 4MB + for part in psutil.disk_partitions(all=False): + usage = psutil.disk_usage(part.mountpoint) + try: + total, used, free, percent = df(part.device) + except RuntimeError as err: + # see: + # https://travis-ci.org/giampaolo/psutil/jobs/138338464 + # https://travis-ci.org/giampaolo/psutil/jobs/138343361 + err = str(err).lower() + if "no such file or directory" in err or \ + "raw devices not supported" in err or \ + "permission denied" in err: + continue + else: + raise + else: + self.assertAlmostEqual(usage.total, total, delta=tolerance) + self.assertAlmostEqual(usage.used, used, delta=tolerance) + self.assertAlmostEqual(usage.free, free, delta=tolerance) + self.assertAlmostEqual(usage.percent, percent, delta=1) + + +@unittest.skipIf(not POSIX, "POSIX only") +class TestMisc(PsutilTestCase): + + def test_getpagesize(self): + pagesize = getpagesize() + self.assertGreater(pagesize, 0) + self.assertEqual(pagesize, resource.getpagesize()) + self.assertEqual(pagesize, mmap.PAGESIZE) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_process.py b/lib/psutil/tests/test_process.py new file mode 100644 index 0000000..26869e9 --- /dev/null +++ b/lib/psutil/tests/test_process.py @@ -0,0 +1,1591 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Tests for psutil.Process class.""" + +import collections +import errno +import getpass +import itertools +import os +import signal +import socket +import stat +import subprocess +import sys +import textwrap +import time +import types +import unittest + +import psutil +from psutil import AIX +from psutil import BSD +from psutil import LINUX +from psutil import MACOS +from psutil import NETBSD +from psutil import OPENBSD +from psutil import OSX +from psutil import POSIX +from psutil import SUNOS +from psutil import WINDOWS +from psutil._common import open_text +from psutil._compat import PY3 +from psutil._compat import FileNotFoundError +from psutil._compat import long +from psutil._compat import super +from psutil.tests import APPVEYOR +from psutil.tests import CI_TESTING +from psutil.tests import GITHUB_ACTIONS +from psutil.tests import GLOBAL_TIMEOUT +from psutil.tests import HAS_CPU_AFFINITY +from psutil.tests import HAS_ENVIRON +from psutil.tests import HAS_IONICE +from psutil.tests import HAS_MEMORY_MAPS +from psutil.tests import HAS_PROC_CPU_NUM +from psutil.tests import HAS_PROC_IO_COUNTERS +from psutil.tests import HAS_RLIMIT +from psutil.tests import HAS_THREADS +from psutil.tests import MACOS_11PLUS +from psutil.tests import PYPY +from psutil.tests import PYTHON_EXE +from psutil.tests import PsutilTestCase +from psutil.tests import ThreadTask +from psutil.tests import call_until +from psutil.tests import copyload_shared_lib +from psutil.tests import create_exe +from psutil.tests import mock +from psutil.tests import process_namespace +from psutil.tests import reap_children +from psutil.tests import retry_on_failure +from psutil.tests import sh +from psutil.tests import skip_on_access_denied +from psutil.tests import skip_on_not_implemented +from psutil.tests import wait_for_pid + + +# =================================================================== +# --- psutil.Process class tests +# =================================================================== + + +class TestProcess(PsutilTestCase): + """Tests for psutil.Process class.""" + + def spawn_psproc(self, *args, **kwargs): + sproc = self.spawn_testproc(*args, **kwargs) + return psutil.Process(sproc.pid) + + # --- + + def test_pid(self): + p = psutil.Process() + self.assertEqual(p.pid, os.getpid()) + with self.assertRaises(AttributeError): + p.pid = 33 + + def test_kill(self): + p = self.spawn_psproc() + p.kill() + code = p.wait() + if WINDOWS: + self.assertEqual(code, signal.SIGTERM) + else: + self.assertEqual(code, -signal.SIGKILL) + self.assertProcessGone(p) + + def test_terminate(self): + p = self.spawn_psproc() + p.terminate() + code = p.wait() + if WINDOWS: + self.assertEqual(code, signal.SIGTERM) + else: + self.assertEqual(code, -signal.SIGTERM) + self.assertProcessGone(p) + + def test_send_signal(self): + sig = signal.SIGKILL if POSIX else signal.SIGTERM + p = self.spawn_psproc() + p.send_signal(sig) + code = p.wait() + if WINDOWS: + self.assertEqual(code, sig) + else: + self.assertEqual(code, -sig) + self.assertProcessGone(p) + + @unittest.skipIf(not POSIX, "not POSIX") + def test_send_signal_mocked(self): + sig = signal.SIGTERM + p = self.spawn_psproc() + with mock.patch('psutil.os.kill', + side_effect=OSError(errno.ESRCH, "")): + self.assertRaises(psutil.NoSuchProcess, p.send_signal, sig) + + p = self.spawn_psproc() + with mock.patch('psutil.os.kill', + side_effect=OSError(errno.EPERM, "")): + self.assertRaises(psutil.AccessDenied, p.send_signal, sig) + + def test_wait_exited(self): + # Test waitpid() + WIFEXITED -> WEXITSTATUS. + # normal return, same as exit(0) + cmd = [PYTHON_EXE, "-c", "pass"] + p = self.spawn_psproc(cmd) + code = p.wait() + self.assertEqual(code, 0) + self.assertProcessGone(p) + # exit(1), implicit in case of error + cmd = [PYTHON_EXE, "-c", "1 / 0"] + p = self.spawn_psproc(cmd, stderr=subprocess.PIPE) + code = p.wait() + self.assertEqual(code, 1) + self.assertProcessGone(p) + # via sys.exit() + cmd = [PYTHON_EXE, "-c", "import sys; sys.exit(5);"] + p = self.spawn_psproc(cmd) + code = p.wait() + self.assertEqual(code, 5) + self.assertProcessGone(p) + # via os._exit() + cmd = [PYTHON_EXE, "-c", "import os; os._exit(5);"] + p = self.spawn_psproc(cmd) + code = p.wait() + self.assertEqual(code, 5) + self.assertProcessGone(p) + + def test_wait_stopped(self): + p = self.spawn_psproc() + if POSIX: + # Test waitpid() + WIFSTOPPED and WIFCONTINUED. + # Note: if a process is stopped it ignores SIGTERM. + p.send_signal(signal.SIGSTOP) + self.assertRaises(psutil.TimeoutExpired, p.wait, timeout=0.001) + p.send_signal(signal.SIGCONT) + self.assertRaises(psutil.TimeoutExpired, p.wait, timeout=0.001) + p.send_signal(signal.SIGTERM) + self.assertEqual(p.wait(), -signal.SIGTERM) + self.assertEqual(p.wait(), -signal.SIGTERM) + else: + p.suspend() + self.assertRaises(psutil.TimeoutExpired, p.wait, timeout=0.001) + p.resume() + self.assertRaises(psutil.TimeoutExpired, p.wait, timeout=0.001) + p.terminate() + self.assertEqual(p.wait(), signal.SIGTERM) + self.assertEqual(p.wait(), signal.SIGTERM) + + def test_wait_non_children(self): + # Test wait() against a process which is not our direct + # child. + child, grandchild = self.spawn_children_pair() + self.assertRaises(psutil.TimeoutExpired, child.wait, 0.01) + self.assertRaises(psutil.TimeoutExpired, grandchild.wait, 0.01) + # We also terminate the direct child otherwise the + # grandchild will hang until the parent is gone. + child.terminate() + grandchild.terminate() + child_ret = child.wait() + grandchild_ret = grandchild.wait() + if POSIX: + self.assertEqual(child_ret, -signal.SIGTERM) + # For processes which are not our children we're supposed + # to get None. + self.assertEqual(grandchild_ret, None) + else: + self.assertEqual(child_ret, signal.SIGTERM) + self.assertEqual(child_ret, signal.SIGTERM) + + def test_wait_timeout(self): + p = self.spawn_psproc() + p.name() + self.assertRaises(psutil.TimeoutExpired, p.wait, 0.01) + self.assertRaises(psutil.TimeoutExpired, p.wait, 0) + self.assertRaises(ValueError, p.wait, -1) + + def test_wait_timeout_nonblocking(self): + p = self.spawn_psproc() + self.assertRaises(psutil.TimeoutExpired, p.wait, 0) + p.kill() + stop_at = time.time() + GLOBAL_TIMEOUT + while time.time() < stop_at: + try: + code = p.wait(0) + break + except psutil.TimeoutExpired: + pass + else: + raise self.fail('timeout') + if POSIX: + self.assertEqual(code, -signal.SIGKILL) + else: + self.assertEqual(code, signal.SIGTERM) + self.assertProcessGone(p) + + def test_cpu_percent(self): + p = psutil.Process() + p.cpu_percent(interval=0.001) + p.cpu_percent(interval=0.001) + for x in range(100): + percent = p.cpu_percent(interval=None) + self.assertIsInstance(percent, float) + self.assertGreaterEqual(percent, 0.0) + with self.assertRaises(ValueError): + p.cpu_percent(interval=-1) + + def test_cpu_percent_numcpus_none(self): + # See: https://github.com/giampaolo/psutil/issues/1087 + with mock.patch('psutil.cpu_count', return_value=None) as m: + psutil.Process().cpu_percent() + assert m.called + + def test_cpu_times(self): + times = psutil.Process().cpu_times() + assert (times.user > 0.0) or (times.system > 0.0), times + assert (times.children_user >= 0.0), times + assert (times.children_system >= 0.0), times + if LINUX: + assert times.iowait >= 0.0, times + # make sure returned values can be pretty printed with strftime + for name in times._fields: + time.strftime("%H:%M:%S", time.localtime(getattr(times, name))) + + def test_cpu_times_2(self): + user_time, kernel_time = psutil.Process().cpu_times()[:2] + utime, ktime = os.times()[:2] + + # Use os.times()[:2] as base values to compare our results + # using a tolerance of +/- 0.1 seconds. + # It will fail if the difference between the values is > 0.1s. + if (max([user_time, utime]) - min([user_time, utime])) > 0.1: + raise self.fail("expected: %s, found: %s" % (utime, user_time)) + + if (max([kernel_time, ktime]) - min([kernel_time, ktime])) > 0.1: + raise self.fail("expected: %s, found: %s" % (ktime, kernel_time)) + + @unittest.skipIf(not HAS_PROC_CPU_NUM, "not supported") + def test_cpu_num(self): + p = psutil.Process() + num = p.cpu_num() + self.assertGreaterEqual(num, 0) + if psutil.cpu_count() == 1: + self.assertEqual(num, 0) + self.assertIn(p.cpu_num(), range(psutil.cpu_count())) + + def test_create_time(self): + p = self.spawn_psproc() + now = time.time() + create_time = p.create_time() + + # Use time.time() as base value to compare our result using a + # tolerance of +/- 1 second. + # It will fail if the difference between the values is > 2s. + difference = abs(create_time - now) + if difference > 2: + raise self.fail("expected: %s, found: %s, difference: %s" + % (now, create_time, difference)) + + # make sure returned value can be pretty printed with strftime + time.strftime("%Y %m %d %H:%M:%S", time.localtime(p.create_time())) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_terminal(self): + terminal = psutil.Process().terminal() + if terminal is not None: + tty = os.path.realpath(sh('tty')) + self.assertEqual(terminal, tty) + + @unittest.skipIf(not HAS_PROC_IO_COUNTERS, 'not supported') + @skip_on_not_implemented(only_if=LINUX) + def test_io_counters(self): + p = psutil.Process() + # test reads + io1 = p.io_counters() + with open(PYTHON_EXE, 'rb') as f: + f.read() + io2 = p.io_counters() + if not BSD and not AIX: + self.assertGreater(io2.read_count, io1.read_count) + self.assertEqual(io2.write_count, io1.write_count) + if LINUX: + self.assertGreater(io2.read_chars, io1.read_chars) + self.assertEqual(io2.write_chars, io1.write_chars) + else: + self.assertGreaterEqual(io2.read_bytes, io1.read_bytes) + self.assertGreaterEqual(io2.write_bytes, io1.write_bytes) + + # test writes + io1 = p.io_counters() + with open(self.get_testfn(), 'wb') as f: + if PY3: + f.write(bytes("x" * 1000000, 'ascii')) + else: + f.write("x" * 1000000) + io2 = p.io_counters() + self.assertGreaterEqual(io2.write_count, io1.write_count) + self.assertGreaterEqual(io2.write_bytes, io1.write_bytes) + self.assertGreaterEqual(io2.read_count, io1.read_count) + self.assertGreaterEqual(io2.read_bytes, io1.read_bytes) + if LINUX: + self.assertGreater(io2.write_chars, io1.write_chars) + self.assertGreaterEqual(io2.read_chars, io1.read_chars) + + # sanity check + for i in range(len(io2)): + if BSD and i >= 2: + # On BSD read_bytes and write_bytes are always set to -1. + continue + self.assertGreaterEqual(io2[i], 0) + self.assertGreaterEqual(io2[i], 0) + + @unittest.skipIf(not HAS_IONICE, "not supported") + @unittest.skipIf(not LINUX, "linux only") + def test_ionice_linux(self): + p = psutil.Process() + if not CI_TESTING: + self.assertEqual(p.ionice()[0], psutil.IOPRIO_CLASS_NONE) + self.assertEqual(psutil.IOPRIO_CLASS_NONE, 0) + self.assertEqual(psutil.IOPRIO_CLASS_RT, 1) # high + self.assertEqual(psutil.IOPRIO_CLASS_BE, 2) # normal + self.assertEqual(psutil.IOPRIO_CLASS_IDLE, 3) # low + init = p.ionice() + try: + # low + p.ionice(psutil.IOPRIO_CLASS_IDLE) + self.assertEqual(tuple(p.ionice()), (psutil.IOPRIO_CLASS_IDLE, 0)) + with self.assertRaises(ValueError): # accepts no value + p.ionice(psutil.IOPRIO_CLASS_IDLE, value=7) + # normal + p.ionice(psutil.IOPRIO_CLASS_BE) + self.assertEqual(tuple(p.ionice()), (psutil.IOPRIO_CLASS_BE, 0)) + p.ionice(psutil.IOPRIO_CLASS_BE, value=7) + self.assertEqual(tuple(p.ionice()), (psutil.IOPRIO_CLASS_BE, 7)) + with self.assertRaises(ValueError): + p.ionice(psutil.IOPRIO_CLASS_BE, value=8) + try: + p.ionice(psutil.IOPRIO_CLASS_RT, value=7) + except psutil.AccessDenied: + pass + # errs + self.assertRaisesRegex( + ValueError, "ioclass accepts no value", + p.ionice, psutil.IOPRIO_CLASS_NONE, 1) + self.assertRaisesRegex( + ValueError, "ioclass accepts no value", + p.ionice, psutil.IOPRIO_CLASS_IDLE, 1) + self.assertRaisesRegex( + ValueError, "'ioclass' argument must be specified", + p.ionice, value=1) + finally: + ioclass, value = init + if ioclass == psutil.IOPRIO_CLASS_NONE: + value = 0 + p.ionice(ioclass, value) + + @unittest.skipIf(not HAS_IONICE, "not supported") + @unittest.skipIf(not WINDOWS, 'not supported on this win version') + def test_ionice_win(self): + p = psutil.Process() + if not CI_TESTING: + self.assertEqual(p.ionice(), psutil.IOPRIO_NORMAL) + init = p.ionice() + try: + # base + p.ionice(psutil.IOPRIO_VERYLOW) + self.assertEqual(p.ionice(), psutil.IOPRIO_VERYLOW) + p.ionice(psutil.IOPRIO_LOW) + self.assertEqual(p.ionice(), psutil.IOPRIO_LOW) + try: + p.ionice(psutil.IOPRIO_HIGH) + except psutil.AccessDenied: + pass + else: + self.assertEqual(p.ionice(), psutil.IOPRIO_HIGH) + # errs + self.assertRaisesRegex( + TypeError, "value argument not accepted on Windows", + p.ionice, psutil.IOPRIO_NORMAL, value=1) + self.assertRaisesRegex( + ValueError, "is not a valid priority", + p.ionice, psutil.IOPRIO_HIGH + 1) + finally: + p.ionice(init) + + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit_get(self): + import resource + p = psutil.Process(os.getpid()) + names = [x for x in dir(psutil) if x.startswith('RLIMIT')] + assert names, names + for name in names: + value = getattr(psutil, name) + self.assertGreaterEqual(value, 0) + if name in dir(resource): + self.assertEqual(value, getattr(resource, name)) + # XXX - On PyPy RLIMIT_INFINITY returned by + # resource.getrlimit() is reported as a very big long + # number instead of -1. It looks like a bug with PyPy. + if PYPY: + continue + self.assertEqual(p.rlimit(value), resource.getrlimit(value)) + else: + ret = p.rlimit(value) + self.assertEqual(len(ret), 2) + self.assertGreaterEqual(ret[0], -1) + self.assertGreaterEqual(ret[1], -1) + + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit_set(self): + p = self.spawn_psproc() + p.rlimit(psutil.RLIMIT_NOFILE, (5, 5)) + self.assertEqual(p.rlimit(psutil.RLIMIT_NOFILE), (5, 5)) + # If pid is 0 prlimit() applies to the calling process and + # we don't want that. + if LINUX: + with self.assertRaisesRegex(ValueError, "can't use prlimit"): + psutil._psplatform.Process(0).rlimit(0) + with self.assertRaises(ValueError): + p.rlimit(psutil.RLIMIT_NOFILE, (5, 5, 5)) + + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit(self): + p = psutil.Process() + testfn = self.get_testfn() + soft, hard = p.rlimit(psutil.RLIMIT_FSIZE) + try: + p.rlimit(psutil.RLIMIT_FSIZE, (1024, hard)) + with open(testfn, "wb") as f: + f.write(b"X" * 1024) + # write() or flush() doesn't always cause the exception + # but close() will. + with self.assertRaises(IOError) as exc: + with open(testfn, "wb") as f: + f.write(b"X" * 1025) + self.assertEqual(exc.exception.errno if PY3 else exc.exception[0], + errno.EFBIG) + finally: + p.rlimit(psutil.RLIMIT_FSIZE, (soft, hard)) + self.assertEqual(p.rlimit(psutil.RLIMIT_FSIZE), (soft, hard)) + + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit_infinity(self): + # First set a limit, then re-set it by specifying INFINITY + # and assume we overridden the previous limit. + p = psutil.Process() + soft, hard = p.rlimit(psutil.RLIMIT_FSIZE) + try: + p.rlimit(psutil.RLIMIT_FSIZE, (1024, hard)) + p.rlimit(psutil.RLIMIT_FSIZE, (psutil.RLIM_INFINITY, hard)) + with open(self.get_testfn(), "wb") as f: + f.write(b"X" * 2048) + finally: + p.rlimit(psutil.RLIMIT_FSIZE, (soft, hard)) + self.assertEqual(p.rlimit(psutil.RLIMIT_FSIZE), (soft, hard)) + + @unittest.skipIf(not HAS_RLIMIT, "not supported") + def test_rlimit_infinity_value(self): + # RLIMIT_FSIZE should be RLIM_INFINITY, which will be a really + # big number on a platform with large file support. On these + # platforms we need to test that the get/setrlimit functions + # properly convert the number to a C long long and that the + # conversion doesn't raise an error. + p = psutil.Process() + soft, hard = p.rlimit(psutil.RLIMIT_FSIZE) + self.assertEqual(psutil.RLIM_INFINITY, hard) + p.rlimit(psutil.RLIMIT_FSIZE, (soft, hard)) + + def test_num_threads(self): + # on certain platforms such as Linux we might test for exact + # thread number, since we always have with 1 thread per process, + # but this does not apply across all platforms (MACOS, Windows) + p = psutil.Process() + if OPENBSD: + try: + step1 = p.num_threads() + except psutil.AccessDenied: + raise unittest.SkipTest("on OpenBSD this requires root access") + else: + step1 = p.num_threads() + + with ThreadTask(): + step2 = p.num_threads() + self.assertEqual(step2, step1 + 1) + + @unittest.skipIf(not WINDOWS, 'WINDOWS only') + def test_num_handles(self): + # a better test is done later into test/_windows.py + p = psutil.Process() + self.assertGreater(p.num_handles(), 0) + + @unittest.skipIf(not HAS_THREADS, 'not supported') + def test_threads(self): + p = psutil.Process() + if OPENBSD: + try: + step1 = p.threads() + except psutil.AccessDenied: + raise unittest.SkipTest("on OpenBSD this requires root access") + else: + step1 = p.threads() + + with ThreadTask(): + step2 = p.threads() + self.assertEqual(len(step2), len(step1) + 1) + athread = step2[0] + # test named tuple + self.assertEqual(athread.id, athread[0]) + self.assertEqual(athread.user_time, athread[1]) + self.assertEqual(athread.system_time, athread[2]) + + @retry_on_failure() + @skip_on_access_denied(only_if=MACOS) + @unittest.skipIf(not HAS_THREADS, 'not supported') + def test_threads_2(self): + p = self.spawn_psproc() + if OPENBSD: + try: + p.threads() + except psutil.AccessDenied: + raise unittest.SkipTest( + "on OpenBSD this requires root access") + self.assertAlmostEqual( + p.cpu_times().user, + sum([x.user_time for x in p.threads()]), delta=0.1) + self.assertAlmostEqual( + p.cpu_times().system, + sum([x.system_time for x in p.threads()]), delta=0.1) + + @retry_on_failure() + def test_memory_info(self): + p = psutil.Process() + + # step 1 - get a base value to compare our results + rss1, vms1 = p.memory_info()[:2] + percent1 = p.memory_percent() + self.assertGreater(rss1, 0) + self.assertGreater(vms1, 0) + + # step 2 - allocate some memory + memarr = [None] * 1500000 + + rss2, vms2 = p.memory_info()[:2] + percent2 = p.memory_percent() + + # step 3 - make sure that the memory usage bumped up + self.assertGreater(rss2, rss1) + self.assertGreaterEqual(vms2, vms1) # vms might be equal + self.assertGreater(percent2, percent1) + del memarr + + if WINDOWS: + mem = p.memory_info() + self.assertEqual(mem.rss, mem.wset) + self.assertEqual(mem.vms, mem.pagefile) + + mem = p.memory_info() + for name in mem._fields: + self.assertGreaterEqual(getattr(mem, name), 0) + + def test_memory_full_info(self): + p = psutil.Process() + total = psutil.virtual_memory().total + mem = p.memory_full_info() + for name in mem._fields: + value = getattr(mem, name) + self.assertGreaterEqual(value, 0, msg=(name, value)) + if name == 'vms' and OSX or LINUX: + continue + self.assertLessEqual(value, total, msg=(name, value, total)) + if LINUX or WINDOWS or MACOS: + self.assertGreaterEqual(mem.uss, 0) + if LINUX: + self.assertGreaterEqual(mem.pss, 0) + self.assertGreaterEqual(mem.swap, 0) + + @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") + def test_memory_maps(self): + p = psutil.Process() + maps = p.memory_maps() + paths = [x for x in maps] + self.assertEqual(len(paths), len(set(paths))) + ext_maps = p.memory_maps(grouped=False) + + for nt in maps: + if not nt.path.startswith('['): + assert os.path.isabs(nt.path), nt.path + if POSIX: + try: + assert os.path.exists(nt.path) or \ + os.path.islink(nt.path), nt.path + except AssertionError: + if not LINUX: + raise + else: + # https://github.com/giampaolo/psutil/issues/759 + with open_text('/proc/self/smaps') as f: + data = f.read() + if "%s (deleted)" % nt.path not in data: + raise + else: + # XXX - On Windows we have this strange behavior with + # 64 bit dlls: they are visible via explorer but cannot + # be accessed via os.stat() (wtf?). + if '64' not in os.path.basename(nt.path): + try: + st = os.stat(nt.path) + except FileNotFoundError: + pass + else: + assert stat.S_ISREG(st.st_mode), nt.path + for nt in ext_maps: + for fname in nt._fields: + value = getattr(nt, fname) + if fname == 'path': + continue + elif fname in ('addr', 'perms'): + assert value, value + else: + self.assertIsInstance(value, (int, long)) + assert value >= 0, value + + @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") + def test_memory_maps_lists_lib(self): + # Make sure a newly loaded shared lib is listed. + p = psutil.Process() + with copyload_shared_lib() as path: + def normpath(p): + return os.path.realpath(os.path.normcase(p)) + libpaths = [normpath(x.path) + for x in p.memory_maps()] + self.assertIn(normpath(path), libpaths) + + def test_memory_percent(self): + p = psutil.Process() + p.memory_percent() + self.assertRaises(ValueError, p.memory_percent, memtype="?!?") + if LINUX or MACOS or WINDOWS: + p.memory_percent(memtype='uss') + + def test_is_running(self): + p = self.spawn_psproc() + assert p.is_running() + assert p.is_running() + p.kill() + p.wait() + assert not p.is_running() + assert not p.is_running() + + def test_exe(self): + p = self.spawn_psproc() + exe = p.exe() + try: + self.assertEqual(exe, PYTHON_EXE) + except AssertionError: + if WINDOWS and len(exe) == len(PYTHON_EXE): + # on Windows we don't care about case sensitivity + normcase = os.path.normcase + self.assertEqual(normcase(exe), normcase(PYTHON_EXE)) + else: + # certain platforms such as BSD are more accurate returning: + # "/usr/local/bin/python2.7" + # ...instead of: + # "/usr/local/bin/python" + # We do not want to consider this difference in accuracy + # an error. + ver = "%s.%s" % (sys.version_info[0], sys.version_info[1]) + try: + self.assertEqual(exe.replace(ver, ''), + PYTHON_EXE.replace(ver, '')) + except AssertionError: + # Typically MACOS. Really not sure what to do here. + pass + + out = sh([exe, "-c", "import os; print('hey')"]) + self.assertEqual(out, 'hey') + + def test_cmdline(self): + cmdline = [PYTHON_EXE, "-c", "import time; time.sleep(60)"] + p = self.spawn_psproc(cmdline) + # XXX - most of the times the underlying sysctl() call on Net + # and Open BSD returns a truncated string. + # Also /proc/pid/cmdline behaves the same so it looks + # like this is a kernel bug. + # XXX - AIX truncates long arguments in /proc/pid/cmdline + if NETBSD or OPENBSD or AIX: + self.assertEqual(p.cmdline()[0], PYTHON_EXE) + else: + if MACOS and CI_TESTING: + pyexe = p.cmdline()[0] + if pyexe != PYTHON_EXE: + self.assertEqual(' '.join(p.cmdline()[1:]), + ' '.join(cmdline[1:])) + return + self.assertEqual(' '.join(p.cmdline()), ' '.join(cmdline)) + + @unittest.skipIf(PYPY, "broken on PYPY") + def test_long_cmdline(self): + testfn = self.get_testfn() + create_exe(testfn) + cmdline = [testfn] + (["0123456789"] * 20) + p = self.spawn_psproc(cmdline) + self.assertEqual(p.cmdline(), cmdline) + + def test_name(self): + p = self.spawn_psproc(PYTHON_EXE) + name = p.name().lower() + pyexe = os.path.basename(os.path.realpath(sys.executable)).lower() + assert pyexe.startswith(name), (pyexe, name) + + @unittest.skipIf(PYPY, "unreliable on PYPY") + def test_long_name(self): + testfn = self.get_testfn(suffix="0123456789" * 2) + create_exe(testfn) + p = self.spawn_psproc(testfn) + self.assertEqual(p.name(), os.path.basename(testfn)) + + # XXX + @unittest.skipIf(SUNOS, "broken on SUNOS") + @unittest.skipIf(AIX, "broken on AIX") + @unittest.skipIf(PYPY, "broken on PYPY") + def test_prog_w_funky_name(self): + # Test that name(), exe() and cmdline() correctly handle programs + # with funky chars such as spaces and ")", see: + # https://github.com/giampaolo/psutil/issues/628 + funky_path = self.get_testfn(suffix='foo bar )') + create_exe(funky_path) + cmdline = [funky_path, "-c", + "import time; [time.sleep(0.01) for x in range(3000)];" + "arg1", "arg2", "", "arg3", ""] + p = self.spawn_psproc(cmdline) + self.assertEqual(p.cmdline(), cmdline) + self.assertEqual(p.name(), os.path.basename(funky_path)) + self.assertEqual(os.path.normcase(p.exe()), + os.path.normcase(funky_path)) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_uids(self): + p = psutil.Process() + real, effective, saved = p.uids() + # os.getuid() refers to "real" uid + self.assertEqual(real, os.getuid()) + # os.geteuid() refers to "effective" uid + self.assertEqual(effective, os.geteuid()) + # No such thing as os.getsuid() ("saved" uid), but starting + # from python 2.7 we have os.getresuid() which returns all + # of them. + if hasattr(os, "getresuid"): + self.assertEqual(os.getresuid(), p.uids()) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_gids(self): + p = psutil.Process() + real, effective, saved = p.gids() + # os.getuid() refers to "real" uid + self.assertEqual(real, os.getgid()) + # os.geteuid() refers to "effective" uid + self.assertEqual(effective, os.getegid()) + # No such thing as os.getsgid() ("saved" gid), but starting + # from python 2.7 we have os.getresgid() which returns all + # of them. + if hasattr(os, "getresuid"): + self.assertEqual(os.getresgid(), p.gids()) + + def test_nice(self): + p = psutil.Process() + self.assertRaises(TypeError, p.nice, "str") + init = p.nice() + try: + if WINDOWS: + # A CI runner may limit our maximum priority, which will break + # this test. Instead, we test in order of increasing priority, + # and match either the expected value or the highest so far. + highest_prio = None + for prio in [psutil.IDLE_PRIORITY_CLASS, + psutil.BELOW_NORMAL_PRIORITY_CLASS, + psutil.NORMAL_PRIORITY_CLASS, + psutil.ABOVE_NORMAL_PRIORITY_CLASS, + psutil.HIGH_PRIORITY_CLASS, + psutil.REALTIME_PRIORITY_CLASS]: + with self.subTest(prio=prio): + try: + p.nice(prio) + except psutil.AccessDenied: + pass + else: + new_prio = p.nice() + if CI_TESTING: + if new_prio == prio or highest_prio is None: + highest_prio = prio + self.assertEqual(new_prio, highest_prio) + else: + self.assertEqual(new_prio, prio) + else: + try: + if hasattr(os, "getpriority"): + self.assertEqual( + os.getpriority(os.PRIO_PROCESS, os.getpid()), + p.nice()) + p.nice(1) + self.assertEqual(p.nice(), 1) + if hasattr(os, "getpriority"): + self.assertEqual( + os.getpriority(os.PRIO_PROCESS, os.getpid()), + p.nice()) + # XXX - going back to previous nice value raises + # AccessDenied on MACOS + if not MACOS: + p.nice(0) + self.assertEqual(p.nice(), 0) + except psutil.AccessDenied: + pass + finally: + try: + p.nice(init) + except psutil.AccessDenied: + pass + + def test_status(self): + p = psutil.Process() + self.assertEqual(p.status(), psutil.STATUS_RUNNING) + + def test_username(self): + p = self.spawn_psproc() + username = p.username() + if WINDOWS: + domain, username = username.split('\\') + getpass_user = getpass.getuser() + if getpass_user.endswith('$'): + # When running as a service account (most likely to be + # NetworkService), these user name calculations don't produce + # the same result, causing the test to fail. + raise unittest.SkipTest('running as service account') + self.assertEqual(username, getpass_user) + if 'USERDOMAIN' in os.environ: + self.assertEqual(domain, os.environ['USERDOMAIN']) + else: + self.assertEqual(username, getpass.getuser()) + + def test_cwd(self): + p = self.spawn_psproc() + self.assertEqual(p.cwd(), os.getcwd()) + + def test_cwd_2(self): + cmd = [PYTHON_EXE, "-c", + "import os, time; os.chdir('..'); time.sleep(60)"] + p = self.spawn_psproc(cmd) + call_until(p.cwd, "ret == os.path.dirname(os.getcwd())") + + @unittest.skipIf(not HAS_CPU_AFFINITY, 'not supported') + def test_cpu_affinity(self): + p = psutil.Process() + initial = p.cpu_affinity() + assert initial, initial + self.addCleanup(p.cpu_affinity, initial) + + if hasattr(os, "sched_getaffinity"): + self.assertEqual(initial, list(os.sched_getaffinity(p.pid))) + self.assertEqual(len(initial), len(set(initial))) + + all_cpus = list(range(len(psutil.cpu_percent(percpu=True)))) + for n in all_cpus: + p.cpu_affinity([n]) + self.assertEqual(p.cpu_affinity(), [n]) + if hasattr(os, "sched_getaffinity"): + self.assertEqual(p.cpu_affinity(), + list(os.sched_getaffinity(p.pid))) + # also test num_cpu() + if hasattr(p, "num_cpu"): + self.assertEqual(p.cpu_affinity()[0], p.num_cpu()) + + # [] is an alias for "all eligible CPUs"; on Linux this may + # not be equal to all available CPUs, see: + # https://github.com/giampaolo/psutil/issues/956 + p.cpu_affinity([]) + if LINUX: + self.assertEqual(p.cpu_affinity(), p._proc._get_eligible_cpus()) + else: + self.assertEqual(p.cpu_affinity(), all_cpus) + if hasattr(os, "sched_getaffinity"): + self.assertEqual(p.cpu_affinity(), + list(os.sched_getaffinity(p.pid))) + # + self.assertRaises(TypeError, p.cpu_affinity, 1) + p.cpu_affinity(initial) + # it should work with all iterables, not only lists + p.cpu_affinity(set(all_cpus)) + p.cpu_affinity(tuple(all_cpus)) + + @unittest.skipIf(not HAS_CPU_AFFINITY, 'not supported') + def test_cpu_affinity_errs(self): + p = self.spawn_psproc() + invalid_cpu = [len(psutil.cpu_times(percpu=True)) + 10] + self.assertRaises(ValueError, p.cpu_affinity, invalid_cpu) + self.assertRaises(ValueError, p.cpu_affinity, range(10000, 11000)) + self.assertRaises(TypeError, p.cpu_affinity, [0, "1"]) + self.assertRaises(ValueError, p.cpu_affinity, [0, -1]) + + @unittest.skipIf(not HAS_CPU_AFFINITY, 'not supported') + def test_cpu_affinity_all_combinations(self): + p = psutil.Process() + initial = p.cpu_affinity() + assert initial, initial + self.addCleanup(p.cpu_affinity, initial) + + # All possible CPU set combinations. + if len(initial) > 12: + initial = initial[:12] # ...otherwise it will take forever + combos = [] + for i in range(0, len(initial) + 1): + for subset in itertools.combinations(initial, i): + if subset: + combos.append(list(subset)) + + for combo in combos: + p.cpu_affinity(combo) + self.assertEqual(sorted(p.cpu_affinity()), sorted(combo)) + + # TODO: #595 + @unittest.skipIf(BSD, "broken on BSD") + # can't find any process file on Appveyor + @unittest.skipIf(APPVEYOR, "unreliable on APPVEYOR") + def test_open_files(self): + p = psutil.Process() + testfn = self.get_testfn() + files = p.open_files() + self.assertNotIn(testfn, files) + with open(testfn, 'wb') as f: + f.write(b'x' * 1024) + f.flush() + # give the kernel some time to see the new file + files = call_until(p.open_files, "len(ret) != %i" % len(files)) + filenames = [os.path.normcase(x.path) for x in files] + self.assertIn(os.path.normcase(testfn), filenames) + if LINUX: + for file in files: + if file.path == testfn: + self.assertEqual(file.position, 1024) + for file in files: + assert os.path.isfile(file.path), file + + # another process + cmdline = "import time; f = open(r'%s', 'r'); time.sleep(60);" % testfn + p = self.spawn_psproc([PYTHON_EXE, "-c", cmdline]) + + for x in range(100): + filenames = [os.path.normcase(x.path) for x in p.open_files()] + if testfn in filenames: + break + time.sleep(.01) + else: + self.assertIn(os.path.normcase(testfn), filenames) + for file in filenames: + assert os.path.isfile(file), file + + # TODO: #595 + @unittest.skipIf(BSD, "broken on BSD") + # can't find any process file on Appveyor + @unittest.skipIf(APPVEYOR, "unreliable on APPVEYOR") + def test_open_files_2(self): + # test fd and path fields + p = psutil.Process() + normcase = os.path.normcase + testfn = self.get_testfn() + with open(testfn, 'w') as fileobj: + for file in p.open_files(): + if normcase(file.path) == normcase(fileobj.name) or \ + file.fd == fileobj.fileno(): + break + else: + raise self.fail("no file found; files=%s" % ( + repr(p.open_files()))) + self.assertEqual(normcase(file.path), normcase(fileobj.name)) + if WINDOWS: + self.assertEqual(file.fd, -1) + else: + self.assertEqual(file.fd, fileobj.fileno()) + # test positions + ntuple = p.open_files()[0] + self.assertEqual(ntuple[0], ntuple.path) + self.assertEqual(ntuple[1], ntuple.fd) + # test file is gone + self.assertNotIn(fileobj.name, p.open_files()) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_num_fds(self): + p = psutil.Process() + testfn = self.get_testfn() + start = p.num_fds() + file = open(testfn, 'w') + self.addCleanup(file.close) + self.assertEqual(p.num_fds(), start + 1) + sock = socket.socket() + self.addCleanup(sock.close) + self.assertEqual(p.num_fds(), start + 2) + file.close() + sock.close() + self.assertEqual(p.num_fds(), start) + + @skip_on_not_implemented(only_if=LINUX) + @unittest.skipIf(OPENBSD or NETBSD, "not reliable on OPENBSD & NETBSD") + def test_num_ctx_switches(self): + p = psutil.Process() + before = sum(p.num_ctx_switches()) + for x in range(500000): + after = sum(p.num_ctx_switches()) + if after > before: + return + raise self.fail( + "num ctx switches still the same after 50.000 iterations") + + def test_ppid(self): + p = psutil.Process() + if hasattr(os, 'getppid'): + self.assertEqual(p.ppid(), os.getppid()) + p = self.spawn_psproc() + self.assertEqual(p.ppid(), os.getpid()) + if APPVEYOR: + # Occasional failures, see: + # https://ci.appveyor.com/project/giampaolo/psutil/build/ + # job/0hs623nenj7w4m33 + return + + def test_parent(self): + p = self.spawn_psproc() + self.assertEqual(p.parent().pid, os.getpid()) + + lowest_pid = psutil.pids()[0] + self.assertIsNone(psutil.Process(lowest_pid).parent()) + + def test_parent_multi(self): + parent = psutil.Process() + child, grandchild = self.spawn_children_pair() + self.assertEqual(grandchild.parent(), child) + self.assertEqual(child.parent(), parent) + + def test_parent_disappeared(self): + # Emulate a case where the parent process disappeared. + p = self.spawn_psproc() + with mock.patch("psutil.Process", + side_effect=psutil.NoSuchProcess(0, 'foo')): + self.assertIsNone(p.parent()) + + @retry_on_failure() + def test_parents(self): + parent = psutil.Process() + assert parent.parents() + child, grandchild = self.spawn_children_pair() + self.assertEqual(child.parents()[0], parent) + self.assertEqual(grandchild.parents()[0], child) + self.assertEqual(grandchild.parents()[1], parent) + + def test_children(self): + parent = psutil.Process() + self.assertEqual(parent.children(), []) + self.assertEqual(parent.children(recursive=True), []) + # On Windows we set the flag to 0 in order to cancel out the + # CREATE_NO_WINDOW flag (enabled by default) which creates + # an extra "conhost.exe" child. + child = self.spawn_psproc(creationflags=0) + children1 = parent.children() + children2 = parent.children(recursive=True) + for children in (children1, children2): + self.assertEqual(len(children), 1) + self.assertEqual(children[0].pid, child.pid) + self.assertEqual(children[0].ppid(), parent.pid) + + def test_children_recursive(self): + # Test children() against two sub processes, p1 and p2, where + # p1 (our child) spawned p2 (our grandchild). + parent = psutil.Process() + child, grandchild = self.spawn_children_pair() + self.assertEqual(parent.children(), [child]) + self.assertEqual(parent.children(recursive=True), [child, grandchild]) + # If the intermediate process is gone there's no way for + # children() to recursively find it. + child.terminate() + child.wait() + self.assertEqual(parent.children(recursive=True), []) + + def test_children_duplicates(self): + # find the process which has the highest number of children + table = collections.defaultdict(int) + for p in psutil.process_iter(): + try: + table[p.ppid()] += 1 + except psutil.Error: + pass + # this is the one, now let's make sure there are no duplicates + pid = sorted(table.items(), key=lambda x: x[1])[-1][0] + if LINUX and pid == 0: + raise self.skipTest("PID 0") + p = psutil.Process(pid) + try: + c = p.children(recursive=True) + except psutil.AccessDenied: # windows + pass + else: + self.assertEqual(len(c), len(set(c))) + + def test_parents_and_children(self): + parent = psutil.Process() + child, grandchild = self.spawn_children_pair() + # forward + children = parent.children(recursive=True) + self.assertEqual(len(children), 2) + self.assertEqual(children[0], child) + self.assertEqual(children[1], grandchild) + # backward + parents = grandchild.parents() + self.assertEqual(parents[0], child) + self.assertEqual(parents[1], parent) + + def test_suspend_resume(self): + p = self.spawn_psproc() + p.suspend() + for x in range(100): + if p.status() == psutil.STATUS_STOPPED: + break + time.sleep(0.01) + p.resume() + self.assertNotEqual(p.status(), psutil.STATUS_STOPPED) + + def test_invalid_pid(self): + self.assertRaises(TypeError, psutil.Process, "1") + self.assertRaises(ValueError, psutil.Process, -1) + + def test_as_dict(self): + p = psutil.Process() + d = p.as_dict(attrs=['exe', 'name']) + self.assertEqual(sorted(d.keys()), ['exe', 'name']) + + p = psutil.Process(min(psutil.pids())) + d = p.as_dict(attrs=['connections'], ad_value='foo') + if not isinstance(d['connections'], list): + self.assertEqual(d['connections'], 'foo') + + # Test ad_value is set on AccessDenied. + with mock.patch('psutil.Process.nice', create=True, + side_effect=psutil.AccessDenied): + self.assertEqual( + p.as_dict(attrs=["nice"], ad_value=1), {"nice": 1}) + + # Test that NoSuchProcess bubbles up. + with mock.patch('psutil.Process.nice', create=True, + side_effect=psutil.NoSuchProcess(p.pid, "name")): + self.assertRaises( + psutil.NoSuchProcess, p.as_dict, attrs=["nice"]) + + # Test that ZombieProcess is swallowed. + with mock.patch('psutil.Process.nice', create=True, + side_effect=psutil.ZombieProcess(p.pid, "name")): + self.assertEqual( + p.as_dict(attrs=["nice"], ad_value="foo"), {"nice": "foo"}) + + # By default APIs raising NotImplementedError are + # supposed to be skipped. + with mock.patch('psutil.Process.nice', create=True, + side_effect=NotImplementedError): + d = p.as_dict() + self.assertNotIn('nice', list(d.keys())) + # ...unless the user explicitly asked for some attr. + with self.assertRaises(NotImplementedError): + p.as_dict(attrs=["nice"]) + + # errors + with self.assertRaises(TypeError): + p.as_dict('name') + with self.assertRaises(ValueError): + p.as_dict(['foo']) + with self.assertRaises(ValueError): + p.as_dict(['foo', 'bar']) + + def test_oneshot(self): + p = psutil.Process() + with mock.patch("psutil._psplatform.Process.cpu_times") as m: + with p.oneshot(): + p.cpu_times() + p.cpu_times() + self.assertEqual(m.call_count, 1) + + with mock.patch("psutil._psplatform.Process.cpu_times") as m: + p.cpu_times() + p.cpu_times() + self.assertEqual(m.call_count, 2) + + def test_oneshot_twice(self): + # Test the case where the ctx manager is __enter__ed twice. + # The second __enter__ is supposed to resut in a NOOP. + p = psutil.Process() + with mock.patch("psutil._psplatform.Process.cpu_times") as m1: + with mock.patch("psutil._psplatform.Process.oneshot_enter") as m2: + with p.oneshot(): + p.cpu_times() + p.cpu_times() + with p.oneshot(): + p.cpu_times() + p.cpu_times() + self.assertEqual(m1.call_count, 1) + self.assertEqual(m2.call_count, 1) + + with mock.patch("psutil._psplatform.Process.cpu_times") as m: + p.cpu_times() + p.cpu_times() + self.assertEqual(m.call_count, 2) + + def test_oneshot_cache(self): + # Make sure oneshot() cache is nonglobal. Instead it's + # supposed to be bound to the Process instance, see: + # https://github.com/giampaolo/psutil/issues/1373 + p1, p2 = self.spawn_children_pair() + p1_ppid = p1.ppid() + p2_ppid = p2.ppid() + self.assertNotEqual(p1_ppid, p2_ppid) + with p1.oneshot(): + self.assertEqual(p1.ppid(), p1_ppid) + self.assertEqual(p2.ppid(), p2_ppid) + with p2.oneshot(): + self.assertEqual(p1.ppid(), p1_ppid) + self.assertEqual(p2.ppid(), p2_ppid) + + def test_halfway_terminated_process(self): + # Test that NoSuchProcess exception gets raised in case the + # process dies after we create the Process object. + # Example: + # >>> proc = Process(1234) + # >>> time.sleep(2) # time-consuming task, process dies in meantime + # >>> proc.name() + # Refers to Issue #15 + def assert_raises_nsp(fun, fun_name): + try: + ret = fun() + except psutil.ZombieProcess: # differentiate from NSP + raise + except psutil.NoSuchProcess: + pass + except psutil.AccessDenied: + if OPENBSD and fun_name in ('threads', 'num_threads'): + return + raise + else: + # NtQuerySystemInformation succeeds even if process is gone. + if WINDOWS and fun_name in ('exe', 'name'): + return + raise self.fail("%r didn't raise NSP and returned %r " + "instead" % (fun, ret)) + + p = self.spawn_psproc() + p.terminate() + p.wait() + if WINDOWS: # XXX + call_until(psutil.pids, "%s not in ret" % p.pid) + self.assertProcessGone(p) + + ns = process_namespace(p) + for fun, name in ns.iter(ns.all): + assert_raises_nsp(fun, name) + + # NtQuerySystemInformation succeeds even if process is gone. + if WINDOWS and not GITHUB_ACTIONS: + normcase = os.path.normcase + self.assertEqual(normcase(p.exe()), normcase(PYTHON_EXE)) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_zombie_process(self): + def succeed_or_zombie_p_exc(fun): + try: + return fun() + except (psutil.ZombieProcess, psutil.AccessDenied): + pass + + parent, zombie = self.spawn_zombie() + # A zombie process should always be instantiable + zproc = psutil.Process(zombie.pid) + # ...and at least its status always be querable + self.assertEqual(zproc.status(), psutil.STATUS_ZOMBIE) + # ...and it should be considered 'running' + assert zproc.is_running() + # ...and as_dict() shouldn't crash + zproc.as_dict() + # ...its parent should 'see' it (edit: not true on BSD and MACOS + # descendants = [x.pid for x in psutil.Process().children( + # recursive=True)] + # self.assertIn(zpid, descendants) + # XXX should we also assume ppid be usable? Note: this + # would be an important use case as the only way to get + # rid of a zombie is to kill its parent. + # self.assertEqual(zpid.ppid(), os.getpid()) + # ...and all other APIs should be able to deal with it + + ns = process_namespace(zproc) + for fun, name in ns.iter(ns.all): + succeed_or_zombie_p_exc(fun) + + assert psutil.pid_exists(zproc.pid) + self.assertIn(zproc.pid, psutil.pids()) + self.assertIn(zproc.pid, [x.pid for x in psutil.process_iter()]) + psutil._pmap = {} + self.assertIn(zproc.pid, [x.pid for x in psutil.process_iter()]) + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_zombie_process_is_running_w_exc(self): + # Emulate a case where internally is_running() raises + # ZombieProcess. + p = psutil.Process() + with mock.patch("psutil.Process", + side_effect=psutil.ZombieProcess(0)) as m: + assert p.is_running() + assert m.called + + @unittest.skipIf(not POSIX, 'POSIX only') + def test_zombie_process_status_w_exc(self): + # Emulate a case where internally status() raises + # ZombieProcess. + p = psutil.Process() + with mock.patch("psutil._psplatform.Process.status", + side_effect=psutil.ZombieProcess(0)) as m: + self.assertEqual(p.status(), psutil.STATUS_ZOMBIE) + assert m.called + + def test_reused_pid(self): + # Emulate a case where PID has been reused by another process. + subp = self.spawn_testproc() + p = psutil.Process(subp.pid) + p._ident = (p.pid, p.create_time() + 100) + assert not p.is_running() + assert p != psutil.Process(subp.pid) + msg = "process no longer exists and its PID has been reused" + self.assertRaisesRegex(psutil.NoSuchProcess, msg, p.suspend) + self.assertRaisesRegex(psutil.NoSuchProcess, msg, p.resume) + self.assertRaisesRegex(psutil.NoSuchProcess, msg, p.terminate) + self.assertRaisesRegex(psutil.NoSuchProcess, msg, p.kill) + self.assertRaisesRegex(psutil.NoSuchProcess, msg, p.children) + + def test_pid_0(self): + # Process(0) is supposed to work on all platforms except Linux + if 0 not in psutil.pids(): + self.assertRaises(psutil.NoSuchProcess, psutil.Process, 0) + # These 2 are a contradiction, but "ps" says PID 1's parent + # is PID 0. + assert not psutil.pid_exists(0) + self.assertEqual(psutil.Process(1).ppid(), 0) + return + + p = psutil.Process(0) + exc = psutil.AccessDenied if WINDOWS else ValueError + self.assertRaises(exc, p.wait) + self.assertRaises(exc, p.terminate) + self.assertRaises(exc, p.suspend) + self.assertRaises(exc, p.resume) + self.assertRaises(exc, p.kill) + self.assertRaises(exc, p.send_signal, signal.SIGTERM) + + # test all methods + ns = process_namespace(p) + for fun, name in ns.iter(ns.getters + ns.setters): + try: + ret = fun() + except psutil.AccessDenied: + pass + else: + if name in ("uids", "gids"): + self.assertEqual(ret.real, 0) + elif name == "username": + user = 'NT AUTHORITY\\SYSTEM' if WINDOWS else 'root' + self.assertEqual(p.username(), user) + elif name == "name": + assert name, name + + if not OPENBSD: + self.assertIn(0, psutil.pids()) + assert psutil.pid_exists(0) + + @unittest.skipIf(not HAS_ENVIRON, "not supported") + def test_environ(self): + def clean_dict(d): + # Most of these are problematic on Travis. + d.pop("PLAT", None) + d.pop("HOME", None) + if MACOS: + d.pop("__CF_USER_TEXT_ENCODING", None) + d.pop("VERSIONER_PYTHON_PREFER_32_BIT", None) + d.pop("VERSIONER_PYTHON_VERSION", None) + return dict( + [(k.replace("\r", "").replace("\n", ""), + v.replace("\r", "").replace("\n", "")) + for k, v in d.items()]) + + self.maxDiff = None + p = psutil.Process() + d1 = clean_dict(p.environ()) + d2 = clean_dict(os.environ.copy()) + if not OSX and GITHUB_ACTIONS: + self.assertEqual(d1, d2) + + @unittest.skipIf(not HAS_ENVIRON, "not supported") + @unittest.skipIf(not POSIX, "POSIX only") + @unittest.skipIf( + MACOS_11PLUS, + "macOS 11+ can't get another process environment, issue #2084" + ) + def test_weird_environ(self): + # environment variables can contain values without an equals sign + code = textwrap.dedent(""" + #include <unistd.h> + #include <fcntl.h> + + char * const argv[] = {"cat", 0}; + char * const envp[] = {"A=1", "X", "C=3", 0}; + + int main(void) { + // Close stderr on exec so parent can wait for the + // execve to finish. + if (fcntl(2, F_SETFD, FD_CLOEXEC) != 0) + return 0; + return execve("/bin/cat", argv, envp); + } + """) + path = self.get_testfn() + create_exe(path, c_code=code) + sproc = self.spawn_testproc( + [path], stdin=subprocess.PIPE, stderr=subprocess.PIPE) + p = psutil.Process(sproc.pid) + wait_for_pid(p.pid) + assert p.is_running() + # Wait for process to exec or exit. + self.assertEqual(sproc.stderr.read(), b"") + if MACOS and CI_TESTING: + try: + env = p.environ() + except psutil.AccessDenied: + # XXX: fails sometimes with: + # PermissionError from 'sysctl(KERN_PROCARGS2) -> EIO' + return + else: + env = p.environ() + self.assertEqual(env, {"A": "1", "C": "3"}) + sproc.communicate() + self.assertEqual(sproc.returncode, 0) + + +# =================================================================== +# --- Limited user tests +# =================================================================== + + +if POSIX and os.getuid() == 0: + + class LimitedUserTestCase(TestProcess): + """Repeat the previous tests by using a limited user. + Executed only on UNIX and only if the user who run the test script + is root. + """ + # the uid/gid the test suite runs under + if hasattr(os, 'getuid'): + PROCESS_UID = os.getuid() + PROCESS_GID = os.getgid() + + def __init__(self, *args, **kwargs): + super().__init__(*args, **kwargs) + # re-define all existent test methods in order to + # ignore AccessDenied exceptions + for attr in [x for x in dir(self) if x.startswith('test')]: + meth = getattr(self, attr) + + def test_(self): + try: + meth() # noqa + except psutil.AccessDenied: + pass + setattr(self, attr, types.MethodType(test_, self)) + + def setUp(self): + super().setUp() + os.setegid(1000) + os.seteuid(1000) + + def tearDown(self): + os.setegid(self.PROCESS_UID) + os.seteuid(self.PROCESS_GID) + super().tearDown() + + def test_nice(self): + try: + psutil.Process().nice(-1) + except psutil.AccessDenied: + pass + else: + raise self.fail("exception not raised") + + @unittest.skipIf(1, "causes problem as root") + def test_zombie_process(self): + pass + + +# =================================================================== +# --- psutil.Popen tests +# =================================================================== + + +class TestPopen(PsutilTestCase): + """Tests for psutil.Popen class.""" + + @classmethod + def tearDownClass(cls): + reap_children() + + def test_misc(self): + # XXX this test causes a ResourceWarning on Python 3 because + # psutil.__subproc instance doesn't get properly freed. + # Not sure what to do though. + cmd = [PYTHON_EXE, "-c", "import time; time.sleep(60);"] + with psutil.Popen(cmd, stdout=subprocess.PIPE, + stderr=subprocess.PIPE) as proc: + proc.name() + proc.cpu_times() + proc.stdin + self.assertTrue(dir(proc)) + self.assertRaises(AttributeError, getattr, proc, 'foo') + proc.terminate() + if POSIX: + self.assertEqual(proc.wait(5), -signal.SIGTERM) + else: + self.assertEqual(proc.wait(5), signal.SIGTERM) + + def test_ctx_manager(self): + with psutil.Popen([PYTHON_EXE, "-V"], + stdout=subprocess.PIPE, + stderr=subprocess.PIPE, + stdin=subprocess.PIPE) as proc: + proc.communicate() + assert proc.stdout.closed + assert proc.stderr.closed + assert proc.stdin.closed + self.assertEqual(proc.returncode, 0) + + def test_kill_terminate(self): + # subprocess.Popen()'s terminate(), kill() and send_signal() do + # not raise exception after the process is gone. psutil.Popen + # diverges from that. + cmd = [PYTHON_EXE, "-c", "import time; time.sleep(60);"] + with psutil.Popen(cmd, stdout=subprocess.PIPE, + stderr=subprocess.PIPE) as proc: + proc.terminate() + proc.wait() + self.assertRaises(psutil.NoSuchProcess, proc.terminate) + self.assertRaises(psutil.NoSuchProcess, proc.kill) + self.assertRaises(psutil.NoSuchProcess, proc.send_signal, + signal.SIGTERM) + if WINDOWS: + self.assertRaises(psutil.NoSuchProcess, proc.send_signal, + signal.CTRL_C_EVENT) + self.assertRaises(psutil.NoSuchProcess, proc.send_signal, + signal.CTRL_BREAK_EVENT) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_sunos.py b/lib/psutil/tests/test_sunos.py new file mode 100644 index 0000000..dd74a49 --- /dev/null +++ b/lib/psutil/tests/test_sunos.py @@ -0,0 +1,46 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Sun OS specific tests.""" + +import os +import unittest + +import psutil +from psutil import SUNOS +from psutil.tests import PsutilTestCase +from psutil.tests import sh + + +@unittest.skipIf(not SUNOS, "SUNOS only") +class SunOSSpecificTestCase(PsutilTestCase): + + def test_swap_memory(self): + out = sh('env PATH=/usr/sbin:/sbin:%s swap -l' % os.environ['PATH']) + lines = out.strip().split('\n')[1:] + if not lines: + raise ValueError('no swap device(s) configured') + total = free = 0 + for line in lines: + line = line.split() + t, f = line[-2:] + total += int(int(t) * 512) + free += int(int(f) * 512) + used = total - free + + psutil_swap = psutil.swap_memory() + self.assertEqual(psutil_swap.total, total) + self.assertEqual(psutil_swap.used, used) + self.assertEqual(psutil_swap.free, free) + + def test_cpu_count(self): + out = sh("/usr/sbin/psrinfo") + self.assertEqual(psutil.cpu_count(), len(out.split('\n'))) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_system.py b/lib/psutil/tests/test_system.py new file mode 100644 index 0000000..1722b51 --- /dev/null +++ b/lib/psutil/tests/test_system.py @@ -0,0 +1,892 @@ +#!/usr/bin/env python3 + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Tests for system APIS.""" + +import contextlib +import datetime +import errno +import os +import platform +import pprint +import shutil +import signal +import socket +import sys +import time +import unittest + +import psutil +from psutil import AIX +from psutil import BSD +from psutil import FREEBSD +from psutil import LINUX +from psutil import MACOS +from psutil import NETBSD +from psutil import OPENBSD +from psutil import POSIX +from psutil import SUNOS +from psutil import WINDOWS +from psutil._compat import FileNotFoundError +from psutil._compat import long +from psutil.tests import ASCII_FS +from psutil.tests import CI_TESTING +from psutil.tests import DEVNULL +from psutil.tests import GITHUB_ACTIONS +from psutil.tests import GLOBAL_TIMEOUT +from psutil.tests import HAS_BATTERY +from psutil.tests import HAS_CPU_FREQ +from psutil.tests import HAS_GETLOADAVG +from psutil.tests import HAS_NET_IO_COUNTERS +from psutil.tests import HAS_SENSORS_BATTERY +from psutil.tests import HAS_SENSORS_FANS +from psutil.tests import HAS_SENSORS_TEMPERATURES +from psutil.tests import IS_64BIT +from psutil.tests import MACOS_12PLUS +from psutil.tests import PYPY +from psutil.tests import UNICODE_SUFFIX +from psutil.tests import PsutilTestCase +from psutil.tests import check_net_address +from psutil.tests import enum +from psutil.tests import mock +from psutil.tests import retry_on_failure + + +# =================================================================== +# --- System-related API tests +# =================================================================== + + +class TestProcessAPIs(PsutilTestCase): + + def test_process_iter(self): + self.assertIn(os.getpid(), [x.pid for x in psutil.process_iter()]) + sproc = self.spawn_testproc() + self.assertIn(sproc.pid, [x.pid for x in psutil.process_iter()]) + p = psutil.Process(sproc.pid) + p.kill() + p.wait() + self.assertNotIn(sproc.pid, [x.pid for x in psutil.process_iter()]) + + with mock.patch('psutil.Process', + side_effect=psutil.NoSuchProcess(os.getpid())): + self.assertEqual(list(psutil.process_iter()), []) + with mock.patch('psutil.Process', + side_effect=psutil.AccessDenied(os.getpid())): + with self.assertRaises(psutil.AccessDenied): + list(psutil.process_iter()) + + def test_prcess_iter_w_attrs(self): + for p in psutil.process_iter(attrs=['pid']): + self.assertEqual(list(p.info.keys()), ['pid']) + with self.assertRaises(ValueError): + list(psutil.process_iter(attrs=['foo'])) + with mock.patch("psutil._psplatform.Process.cpu_times", + side_effect=psutil.AccessDenied(0, "")) as m: + for p in psutil.process_iter(attrs=["pid", "cpu_times"]): + self.assertIsNone(p.info['cpu_times']) + self.assertGreaterEqual(p.info['pid'], 0) + assert m.called + with mock.patch("psutil._psplatform.Process.cpu_times", + side_effect=psutil.AccessDenied(0, "")) as m: + flag = object() + for p in psutil.process_iter( + attrs=["pid", "cpu_times"], ad_value=flag): + self.assertIs(p.info['cpu_times'], flag) + self.assertGreaterEqual(p.info['pid'], 0) + assert m.called + + @unittest.skipIf(PYPY and WINDOWS, + "spawn_testproc() unreliable on PYPY + WINDOWS") + def test_wait_procs(self): + def callback(p): + pids.append(p.pid) + + pids = [] + sproc1 = self.spawn_testproc() + sproc2 = self.spawn_testproc() + sproc3 = self.spawn_testproc() + procs = [psutil.Process(x.pid) for x in (sproc1, sproc2, sproc3)] + self.assertRaises(ValueError, psutil.wait_procs, procs, timeout=-1) + self.assertRaises(TypeError, psutil.wait_procs, procs, callback=1) + t = time.time() + gone, alive = psutil.wait_procs(procs, timeout=0.01, callback=callback) + + self.assertLess(time.time() - t, 0.5) + self.assertEqual(gone, []) + self.assertEqual(len(alive), 3) + self.assertEqual(pids, []) + for p in alive: + self.assertFalse(hasattr(p, 'returncode')) + + @retry_on_failure(30) + def test(procs, callback): + gone, alive = psutil.wait_procs(procs, timeout=0.03, + callback=callback) + self.assertEqual(len(gone), 1) + self.assertEqual(len(alive), 2) + return gone, alive + + sproc3.terminate() + gone, alive = test(procs, callback) + self.assertIn(sproc3.pid, [x.pid for x in gone]) + if POSIX: + self.assertEqual(gone.pop().returncode, -signal.SIGTERM) + else: + self.assertEqual(gone.pop().returncode, 1) + self.assertEqual(pids, [sproc3.pid]) + for p in alive: + self.assertFalse(hasattr(p, 'returncode')) + + @retry_on_failure(30) + def test(procs, callback): + gone, alive = psutil.wait_procs(procs, timeout=0.03, + callback=callback) + self.assertEqual(len(gone), 3) + self.assertEqual(len(alive), 0) + return gone, alive + + sproc1.terminate() + sproc2.terminate() + gone, alive = test(procs, callback) + self.assertEqual(set(pids), set([sproc1.pid, sproc2.pid, sproc3.pid])) + for p in gone: + self.assertTrue(hasattr(p, 'returncode')) + + @unittest.skipIf(PYPY and WINDOWS, + "spawn_testproc() unreliable on PYPY + WINDOWS") + def test_wait_procs_no_timeout(self): + sproc1 = self.spawn_testproc() + sproc2 = self.spawn_testproc() + sproc3 = self.spawn_testproc() + procs = [psutil.Process(x.pid) for x in (sproc1, sproc2, sproc3)] + for p in procs: + p.terminate() + gone, alive = psutil.wait_procs(procs) + + def test_pid_exists(self): + sproc = self.spawn_testproc() + self.assertTrue(psutil.pid_exists(sproc.pid)) + p = psutil.Process(sproc.pid) + p.kill() + p.wait() + self.assertFalse(psutil.pid_exists(sproc.pid)) + self.assertFalse(psutil.pid_exists(-1)) + self.assertEqual(psutil.pid_exists(0), 0 in psutil.pids()) + + def test_pid_exists_2(self): + pids = psutil.pids() + for pid in pids: + try: + assert psutil.pid_exists(pid) + except AssertionError: + # in case the process disappeared in meantime fail only + # if it is no longer in psutil.pids() + time.sleep(.1) + self.assertNotIn(pid, psutil.pids()) + pids = range(max(pids) + 5000, max(pids) + 6000) + for pid in pids: + self.assertFalse(psutil.pid_exists(pid), msg=pid) + + +class TestMiscAPIs(PsutilTestCase): + + def test_boot_time(self): + bt = psutil.boot_time() + self.assertIsInstance(bt, float) + self.assertGreater(bt, 0) + self.assertLess(bt, time.time()) + + @unittest.skipIf(CI_TESTING and not psutil.users(), "unreliable on CI") + def test_users(self): + users = psutil.users() + self.assertNotEqual(users, []) + for user in users: + assert user.name, user + self.assertIsInstance(user.name, str) + self.assertIsInstance(user.terminal, (str, type(None))) + if user.host is not None: + self.assertIsInstance(user.host, (str, type(None))) + user.terminal + user.host + assert user.started > 0.0, user + datetime.datetime.fromtimestamp(user.started) + if WINDOWS or OPENBSD: + self.assertIsNone(user.pid) + else: + psutil.Process(user.pid) + + def test_test(self): + # test for psutil.test() function + stdout = sys.stdout + sys.stdout = DEVNULL + try: + psutil.test() + finally: + sys.stdout = stdout + + def test_os_constants(self): + names = ["POSIX", "WINDOWS", "LINUX", "MACOS", "FREEBSD", "OPENBSD", + "NETBSD", "BSD", "SUNOS"] + for name in names: + self.assertIsInstance(getattr(psutil, name), bool, msg=name) + + if os.name == 'posix': + assert psutil.POSIX + assert not psutil.WINDOWS + names.remove("POSIX") + if "linux" in sys.platform.lower(): + assert psutil.LINUX + names.remove("LINUX") + elif "bsd" in sys.platform.lower(): + assert psutil.BSD + self.assertEqual([psutil.FREEBSD, psutil.OPENBSD, + psutil.NETBSD].count(True), 1) + names.remove("BSD") + names.remove("FREEBSD") + names.remove("OPENBSD") + names.remove("NETBSD") + elif "sunos" in sys.platform.lower() or \ + "solaris" in sys.platform.lower(): + assert psutil.SUNOS + names.remove("SUNOS") + elif "darwin" in sys.platform.lower(): + assert psutil.MACOS + names.remove("MACOS") + else: + assert psutil.WINDOWS + assert not psutil.POSIX + names.remove("WINDOWS") + + # assert all other constants are set to False + for name in names: + self.assertIs(getattr(psutil, name), False, msg=name) + + +class TestMemoryAPIs(PsutilTestCase): + + def test_virtual_memory(self): + mem = psutil.virtual_memory() + assert mem.total > 0, mem + assert mem.available > 0, mem + assert 0 <= mem.percent <= 100, mem + assert mem.used > 0, mem + assert mem.free >= 0, mem + for name in mem._fields: + value = getattr(mem, name) + if name != 'percent': + self.assertIsInstance(value, (int, long)) + if name != 'total': + if not value >= 0: + raise self.fail("%r < 0 (%s)" % (name, value)) + if value > mem.total: + raise self.fail("%r > total (total=%s, %s=%s)" + % (name, mem.total, name, value)) + + def test_swap_memory(self): + mem = psutil.swap_memory() + self.assertEqual( + mem._fields, ('total', 'used', 'free', 'percent', 'sin', 'sout')) + + assert mem.total >= 0, mem + assert mem.used >= 0, mem + if mem.total > 0: + # likely a system with no swap partition + assert mem.free > 0, mem + else: + assert mem.free == 0, mem + assert 0 <= mem.percent <= 100, mem + assert mem.sin >= 0, mem + assert mem.sout >= 0, mem + + +class TestCpuAPIs(PsutilTestCase): + + def test_cpu_count_logical(self): + logical = psutil.cpu_count() + self.assertIsNotNone(logical) + self.assertEqual(logical, len(psutil.cpu_times(percpu=True))) + self.assertGreaterEqual(logical, 1) + # + if os.path.exists("/proc/cpuinfo"): + with open("/proc/cpuinfo") as fd: + cpuinfo_data = fd.read() + if "physical id" not in cpuinfo_data: + raise unittest.SkipTest("cpuinfo doesn't include physical id") + + def test_cpu_count_cores(self): + logical = psutil.cpu_count() + cores = psutil.cpu_count(logical=False) + if cores is None: + raise self.skipTest("cpu_count_cores() is None") + if WINDOWS and sys.getwindowsversion()[:2] <= (6, 1): # <= Vista + self.assertIsNone(cores) + else: + self.assertGreaterEqual(cores, 1) + self.assertGreaterEqual(logical, cores) + + def test_cpu_count_none(self): + # https://github.com/giampaolo/psutil/issues/1085 + for val in (-1, 0, None): + with mock.patch('psutil._psplatform.cpu_count_logical', + return_value=val) as m: + self.assertIsNone(psutil.cpu_count()) + assert m.called + with mock.patch('psutil._psplatform.cpu_count_cores', + return_value=val) as m: + self.assertIsNone(psutil.cpu_count(logical=False)) + assert m.called + + def test_cpu_times(self): + # Check type, value >= 0, str(). + total = 0 + times = psutil.cpu_times() + sum(times) + for cp_time in times: + self.assertIsInstance(cp_time, float) + self.assertGreaterEqual(cp_time, 0.0) + total += cp_time + self.assertEqual(total, sum(times)) + str(times) + # CPU times are always supposed to increase over time + # or at least remain the same and that's because time + # cannot go backwards. + # Surprisingly sometimes this might not be the case (at + # least on Windows and Linux), see: + # https://github.com/giampaolo/psutil/issues/392 + # https://github.com/giampaolo/psutil/issues/645 + # if not WINDOWS: + # last = psutil.cpu_times() + # for x in range(100): + # new = psutil.cpu_times() + # for field in new._fields: + # new_t = getattr(new, field) + # last_t = getattr(last, field) + # self.assertGreaterEqual(new_t, last_t, + # msg="%s %s" % (new_t, last_t)) + # last = new + + def test_cpu_times_time_increases(self): + # Make sure time increases between calls. + t1 = sum(psutil.cpu_times()) + stop_at = time.time() + GLOBAL_TIMEOUT + while time.time() < stop_at: + t2 = sum(psutil.cpu_times()) + if t2 > t1: + return + raise self.fail("time remained the same") + + def test_per_cpu_times(self): + # Check type, value >= 0, str(). + for times in psutil.cpu_times(percpu=True): + total = 0 + sum(times) + for cp_time in times: + self.assertIsInstance(cp_time, float) + self.assertGreaterEqual(cp_time, 0.0) + total += cp_time + self.assertEqual(total, sum(times)) + str(times) + self.assertEqual(len(psutil.cpu_times(percpu=True)[0]), + len(psutil.cpu_times(percpu=False))) + + # Note: in theory CPU times are always supposed to increase over + # time or remain the same but never go backwards. In practice + # sometimes this is not the case. + # This issue seemd to be afflict Windows: + # https://github.com/giampaolo/psutil/issues/392 + # ...but it turns out also Linux (rarely) behaves the same. + # last = psutil.cpu_times(percpu=True) + # for x in range(100): + # new = psutil.cpu_times(percpu=True) + # for index in range(len(new)): + # newcpu = new[index] + # lastcpu = last[index] + # for field in newcpu._fields: + # new_t = getattr(newcpu, field) + # last_t = getattr(lastcpu, field) + # self.assertGreaterEqual( + # new_t, last_t, msg="%s %s" % (lastcpu, newcpu)) + # last = new + + def test_per_cpu_times_2(self): + # Simulate some work load then make sure time have increased + # between calls. + tot1 = psutil.cpu_times(percpu=True) + giveup_at = time.time() + GLOBAL_TIMEOUT + while True: + if time.time() >= giveup_at: + return self.fail("timeout") + tot2 = psutil.cpu_times(percpu=True) + for t1, t2 in zip(tot1, tot2): + t1, t2 = psutil._cpu_busy_time(t1), psutil._cpu_busy_time(t2) + difference = t2 - t1 + if difference >= 0.05: + return + + def test_cpu_times_comparison(self): + # Make sure the sum of all per cpu times is almost equal to + # base "one cpu" times. + base = psutil.cpu_times() + per_cpu = psutil.cpu_times(percpu=True) + summed_values = base._make([sum(num) for num in zip(*per_cpu)]) + for field in base._fields: + self.assertAlmostEqual( + getattr(base, field), getattr(summed_values, field), delta=1) + + def _test_cpu_percent(self, percent, last_ret, new_ret): + try: + self.assertIsInstance(percent, float) + self.assertGreaterEqual(percent, 0.0) + self.assertIsNot(percent, -0.0) + self.assertLessEqual(percent, 100.0 * psutil.cpu_count()) + except AssertionError as err: + raise AssertionError("\n%s\nlast=%s\nnew=%s" % ( + err, pprint.pformat(last_ret), pprint.pformat(new_ret))) + + def test_cpu_percent(self): + last = psutil.cpu_percent(interval=0.001) + for x in range(100): + new = psutil.cpu_percent(interval=None) + self._test_cpu_percent(new, last, new) + last = new + with self.assertRaises(ValueError): + psutil.cpu_percent(interval=-1) + + def test_per_cpu_percent(self): + last = psutil.cpu_percent(interval=0.001, percpu=True) + self.assertEqual(len(last), psutil.cpu_count()) + for x in range(100): + new = psutil.cpu_percent(interval=None, percpu=True) + for percent in new: + self._test_cpu_percent(percent, last, new) + last = new + with self.assertRaises(ValueError): + psutil.cpu_percent(interval=-1, percpu=True) + + def test_cpu_times_percent(self): + last = psutil.cpu_times_percent(interval=0.001) + for x in range(100): + new = psutil.cpu_times_percent(interval=None) + for percent in new: + self._test_cpu_percent(percent, last, new) + self._test_cpu_percent(sum(new), last, new) + last = new + with self.assertRaises(ValueError): + psutil.cpu_times_percent(interval=-1) + + def test_per_cpu_times_percent(self): + last = psutil.cpu_times_percent(interval=0.001, percpu=True) + self.assertEqual(len(last), psutil.cpu_count()) + for x in range(100): + new = psutil.cpu_times_percent(interval=None, percpu=True) + for cpu in new: + for percent in cpu: + self._test_cpu_percent(percent, last, new) + self._test_cpu_percent(sum(cpu), last, new) + last = new + + def test_per_cpu_times_percent_negative(self): + # see: https://github.com/giampaolo/psutil/issues/645 + psutil.cpu_times_percent(percpu=True) + zero_times = [x._make([0 for x in range(len(x._fields))]) + for x in psutil.cpu_times(percpu=True)] + with mock.patch('psutil.cpu_times', return_value=zero_times): + for cpu in psutil.cpu_times_percent(percpu=True): + for percent in cpu: + self._test_cpu_percent(percent, None, None) + + def test_cpu_stats(self): + # Tested more extensively in per-platform test modules. + infos = psutil.cpu_stats() + self.assertEqual( + infos._fields, + ('ctx_switches', 'interrupts', 'soft_interrupts', 'syscalls')) + for name in infos._fields: + value = getattr(infos, name) + self.assertGreaterEqual(value, 0) + # on AIX, ctx_switches is always 0 + if not AIX and name in ('ctx_switches', 'interrupts'): + self.assertGreater(value, 0) + + # TODO: remove this once 1892 is fixed + @unittest.skipIf(MACOS and platform.machine() == 'arm64', + "skipped due to #1892") + @unittest.skipIf(not HAS_CPU_FREQ, "not supported") + def test_cpu_freq(self): + def check_ls(ls): + for nt in ls: + self.assertEqual(nt._fields, ('current', 'min', 'max')) + if nt.max != 0.0: + self.assertLessEqual(nt.current, nt.max) + for name in nt._fields: + value = getattr(nt, name) + self.assertIsInstance(value, (int, long, float)) + self.assertGreaterEqual(value, 0) + + ls = psutil.cpu_freq(percpu=True) + if FREEBSD and not ls: + raise self.skipTest("returns empty list on FreeBSD") + + assert ls, ls + check_ls([psutil.cpu_freq(percpu=False)]) + + if LINUX: + self.assertEqual(len(ls), psutil.cpu_count()) + + @unittest.skipIf(not HAS_GETLOADAVG, "not supported") + def test_getloadavg(self): + loadavg = psutil.getloadavg() + self.assertEqual(len(loadavg), 3) + for load in loadavg: + self.assertIsInstance(load, float) + self.assertGreaterEqual(load, 0.0) + + +class TestDiskAPIs(PsutilTestCase): + + @unittest.skipIf(PYPY and not IS_64BIT, "unreliable on PYPY32 + 32BIT") + def test_disk_usage(self): + usage = psutil.disk_usage(os.getcwd()) + self.assertEqual(usage._fields, ('total', 'used', 'free', 'percent')) + + assert usage.total > 0, usage + assert usage.used > 0, usage + assert usage.free > 0, usage + assert usage.total > usage.used, usage + assert usage.total > usage.free, usage + assert 0 <= usage.percent <= 100, usage.percent + if hasattr(shutil, 'disk_usage'): + # py >= 3.3, see: http://bugs.python.org/issue12442 + shutil_usage = shutil.disk_usage(os.getcwd()) + tolerance = 5 * 1024 * 1024 # 5MB + self.assertEqual(usage.total, shutil_usage.total) + self.assertAlmostEqual(usage.free, shutil_usage.free, + delta=tolerance) + if not MACOS_12PLUS: + # see https://github.com/giampaolo/psutil/issues/2147 + self.assertAlmostEqual(usage.used, shutil_usage.used, + delta=tolerance) + + # if path does not exist OSError ENOENT is expected across + # all platforms + fname = self.get_testfn() + with self.assertRaises(FileNotFoundError): + psutil.disk_usage(fname) + + @unittest.skipIf(not ASCII_FS, "not an ASCII fs") + def test_disk_usage_unicode(self): + # See: https://github.com/giampaolo/psutil/issues/416 + with self.assertRaises(UnicodeEncodeError): + psutil.disk_usage(UNICODE_SUFFIX) + + def test_disk_usage_bytes(self): + psutil.disk_usage(b'.') + + def test_disk_partitions(self): + def check_ntuple(nt): + self.assertIsInstance(nt.device, str) + self.assertIsInstance(nt.mountpoint, str) + self.assertIsInstance(nt.fstype, str) + self.assertIsInstance(nt.opts, str) + self.assertIsInstance(nt.maxfile, (int, type(None))) + self.assertIsInstance(nt.maxpath, (int, type(None))) + if nt.maxfile is not None and not GITHUB_ACTIONS: + self.assertGreater(nt.maxfile, 0) + if nt.maxpath is not None: + self.assertGreater(nt.maxpath, 0) + + # all = False + ls = psutil.disk_partitions(all=False) + self.assertTrue(ls, msg=ls) + for disk in ls: + check_ntuple(disk) + if WINDOWS and 'cdrom' in disk.opts: + continue + if not POSIX: + assert os.path.exists(disk.device), disk + else: + # we cannot make any assumption about this, see: + # http://goo.gl/p9c43 + disk.device + # on modern systems mount points can also be files + assert os.path.exists(disk.mountpoint), disk + assert disk.fstype, disk + + # all = True + ls = psutil.disk_partitions(all=True) + self.assertTrue(ls, msg=ls) + for disk in psutil.disk_partitions(all=True): + check_ntuple(disk) + if not WINDOWS and disk.mountpoint: + try: + os.stat(disk.mountpoint) + except OSError as err: + if GITHUB_ACTIONS and MACOS and err.errno == errno.EIO: + continue + # http://mail.python.org/pipermail/python-dev/ + # 2012-June/120787.html + if err.errno not in (errno.EPERM, errno.EACCES): + raise + else: + assert os.path.exists(disk.mountpoint), disk + + # --- + + def find_mount_point(path): + path = os.path.abspath(path) + while not os.path.ismount(path): + path = os.path.dirname(path) + return path.lower() + + mount = find_mount_point(__file__) + mounts = [x.mountpoint.lower() for x in + psutil.disk_partitions(all=True) if x.mountpoint] + self.assertIn(mount, mounts) + + @unittest.skipIf(LINUX and not os.path.exists('/proc/diskstats'), + '/proc/diskstats not available on this linux version') + @unittest.skipIf(CI_TESTING and not psutil.disk_io_counters(), + "unreliable on CI") # no visible disks + def test_disk_io_counters(self): + def check_ntuple(nt): + self.assertEqual(nt[0], nt.read_count) + self.assertEqual(nt[1], nt.write_count) + self.assertEqual(nt[2], nt.read_bytes) + self.assertEqual(nt[3], nt.write_bytes) + if not (OPENBSD or NETBSD): + self.assertEqual(nt[4], nt.read_time) + self.assertEqual(nt[5], nt.write_time) + if LINUX: + self.assertEqual(nt[6], nt.read_merged_count) + self.assertEqual(nt[7], nt.write_merged_count) + self.assertEqual(nt[8], nt.busy_time) + elif FREEBSD: + self.assertEqual(nt[6], nt.busy_time) + for name in nt._fields: + assert getattr(nt, name) >= 0, nt + + ret = psutil.disk_io_counters(perdisk=False) + assert ret is not None, "no disks on this system?" + check_ntuple(ret) + ret = psutil.disk_io_counters(perdisk=True) + # make sure there are no duplicates + self.assertEqual(len(ret), len(set(ret))) + for key in ret: + assert key, key + check_ntuple(ret[key]) + + def test_disk_io_counters_no_disks(self): + # Emulate a case where no disks are installed, see: + # https://github.com/giampaolo/psutil/issues/1062 + with mock.patch('psutil._psplatform.disk_io_counters', + return_value={}) as m: + self.assertIsNone(psutil.disk_io_counters(perdisk=False)) + self.assertEqual(psutil.disk_io_counters(perdisk=True), {}) + assert m.called + + +class TestNetAPIs(PsutilTestCase): + + @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') + def test_net_io_counters(self): + def check_ntuple(nt): + self.assertEqual(nt[0], nt.bytes_sent) + self.assertEqual(nt[1], nt.bytes_recv) + self.assertEqual(nt[2], nt.packets_sent) + self.assertEqual(nt[3], nt.packets_recv) + self.assertEqual(nt[4], nt.errin) + self.assertEqual(nt[5], nt.errout) + self.assertEqual(nt[6], nt.dropin) + self.assertEqual(nt[7], nt.dropout) + assert nt.bytes_sent >= 0, nt + assert nt.bytes_recv >= 0, nt + assert nt.packets_sent >= 0, nt + assert nt.packets_recv >= 0, nt + assert nt.errin >= 0, nt + assert nt.errout >= 0, nt + assert nt.dropin >= 0, nt + assert nt.dropout >= 0, nt + + ret = psutil.net_io_counters(pernic=False) + check_ntuple(ret) + ret = psutil.net_io_counters(pernic=True) + self.assertNotEqual(ret, []) + for key in ret: + self.assertTrue(key) + self.assertIsInstance(key, str) + check_ntuple(ret[key]) + + @unittest.skipIf(not HAS_NET_IO_COUNTERS, 'not supported') + def test_net_io_counters_no_nics(self): + # Emulate a case where no NICs are installed, see: + # https://github.com/giampaolo/psutil/issues/1062 + with mock.patch('psutil._psplatform.net_io_counters', + return_value={}) as m: + self.assertIsNone(psutil.net_io_counters(pernic=False)) + self.assertEqual(psutil.net_io_counters(pernic=True), {}) + assert m.called + + def test_net_if_addrs(self): + nics = psutil.net_if_addrs() + assert nics, nics + + nic_stats = psutil.net_if_stats() + + # Not reliable on all platforms (net_if_addrs() reports more + # interfaces). + # self.assertEqual(sorted(nics.keys()), + # sorted(psutil.net_io_counters(pernic=True).keys())) + + families = set([socket.AF_INET, socket.AF_INET6, psutil.AF_LINK]) + for nic, addrs in nics.items(): + self.assertIsInstance(nic, str) + self.assertEqual(len(set(addrs)), len(addrs)) + for addr in addrs: + self.assertIsInstance(addr.family, int) + self.assertIsInstance(addr.address, str) + self.assertIsInstance(addr.netmask, (str, type(None))) + self.assertIsInstance(addr.broadcast, (str, type(None))) + self.assertIn(addr.family, families) + if sys.version_info >= (3, 4) and not PYPY: + self.assertIsInstance(addr.family, enum.IntEnum) + if nic_stats[nic].isup: + # Do not test binding to addresses of interfaces + # that are down + if addr.family == socket.AF_INET: + s = socket.socket(addr.family) + with contextlib.closing(s): + s.bind((addr.address, 0)) + elif addr.family == socket.AF_INET6: + info = socket.getaddrinfo( + addr.address, 0, socket.AF_INET6, + socket.SOCK_STREAM, 0, socket.AI_PASSIVE)[0] + af, socktype, proto, canonname, sa = info + s = socket.socket(af, socktype, proto) + with contextlib.closing(s): + s.bind(sa) + for ip in (addr.address, addr.netmask, addr.broadcast, + addr.ptp): + if ip is not None: + # TODO: skip AF_INET6 for now because I get: + # AddressValueError: Only hex digits permitted in + # u'c6f3%lxcbr0' in u'fe80::c8e0:fff:fe54:c6f3%lxcbr0' + if addr.family != socket.AF_INET6: + check_net_address(ip, addr.family) + # broadcast and ptp addresses are mutually exclusive + if addr.broadcast: + self.assertIsNone(addr.ptp) + elif addr.ptp: + self.assertIsNone(addr.broadcast) + + if BSD or MACOS or SUNOS: + if hasattr(socket, "AF_LINK"): + self.assertEqual(psutil.AF_LINK, socket.AF_LINK) + elif LINUX: + self.assertEqual(psutil.AF_LINK, socket.AF_PACKET) + elif WINDOWS: + self.assertEqual(psutil.AF_LINK, -1) + + def test_net_if_addrs_mac_null_bytes(self): + # Simulate that the underlying C function returns an incomplete + # MAC address. psutil is supposed to fill it with null bytes. + # https://github.com/giampaolo/psutil/issues/786 + if POSIX: + ret = [('em1', psutil.AF_LINK, '06:3d:29', None, None, None)] + else: + ret = [('em1', -1, '06-3d-29', None, None, None)] + with mock.patch('psutil._psplatform.net_if_addrs', + return_value=ret) as m: + addr = psutil.net_if_addrs()['em1'][0] + assert m.called + if POSIX: + self.assertEqual(addr.address, '06:3d:29:00:00:00') + else: + self.assertEqual(addr.address, '06-3d-29-00-00-00') + + def test_net_if_stats(self): + nics = psutil.net_if_stats() + assert nics, nics + all_duplexes = (psutil.NIC_DUPLEX_FULL, + psutil.NIC_DUPLEX_HALF, + psutil.NIC_DUPLEX_UNKNOWN) + for name, stats in nics.items(): + self.assertIsInstance(name, str) + isup, duplex, speed, mtu, flags = stats + self.assertIsInstance(isup, bool) + self.assertIn(duplex, all_duplexes) + self.assertIn(duplex, all_duplexes) + self.assertGreaterEqual(speed, 0) + self.assertGreaterEqual(mtu, 0) + self.assertIsInstance(flags, str) + + @unittest.skipIf(not (LINUX or BSD or MACOS), + "LINUX or BSD or MACOS specific") + def test_net_if_stats_enodev(self): + # See: https://github.com/giampaolo/psutil/issues/1279 + with mock.patch('psutil._psutil_posix.net_if_mtu', + side_effect=OSError(errno.ENODEV, "")) as m: + ret = psutil.net_if_stats() + self.assertEqual(ret, {}) + assert m.called + + +class TestSensorsAPIs(PsutilTestCase): + + @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") + def test_sensors_temperatures(self): + temps = psutil.sensors_temperatures() + for name, entries in temps.items(): + self.assertIsInstance(name, str) + for entry in entries: + self.assertIsInstance(entry.label, str) + if entry.current is not None: + self.assertGreaterEqual(entry.current, 0) + if entry.high is not None: + self.assertGreaterEqual(entry.high, 0) + if entry.critical is not None: + self.assertGreaterEqual(entry.critical, 0) + + @unittest.skipIf(not HAS_SENSORS_TEMPERATURES, "not supported") + def test_sensors_temperatures_fahreneit(self): + d = {'coretemp': [('label', 50.0, 60.0, 70.0)]} + with mock.patch("psutil._psplatform.sensors_temperatures", + return_value=d) as m: + temps = psutil.sensors_temperatures( + fahrenheit=True)['coretemp'][0] + assert m.called + self.assertEqual(temps.current, 122.0) + self.assertEqual(temps.high, 140.0) + self.assertEqual(temps.critical, 158.0) + + @unittest.skipIf(not HAS_SENSORS_BATTERY, "not supported") + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_sensors_battery(self): + ret = psutil.sensors_battery() + self.assertGreaterEqual(ret.percent, 0) + self.assertLessEqual(ret.percent, 100) + if ret.secsleft not in (psutil.POWER_TIME_UNKNOWN, + psutil.POWER_TIME_UNLIMITED): + self.assertGreaterEqual(ret.secsleft, 0) + else: + if ret.secsleft == psutil.POWER_TIME_UNLIMITED: + self.assertTrue(ret.power_plugged) + self.assertIsInstance(ret.power_plugged, bool) + + @unittest.skipIf(not HAS_SENSORS_FANS, "not supported") + def test_sensors_fans(self): + fans = psutil.sensors_fans() + for name, entries in fans.items(): + self.assertIsInstance(name, str) + for entry in entries: + self.assertIsInstance(entry.label, str) + self.assertIsInstance(entry.current, (int, long)) + self.assertGreaterEqual(entry.current, 0) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_testutils.py b/lib/psutil/tests/test_testutils.py new file mode 100644 index 0000000..dd98538 --- /dev/null +++ b/lib/psutil/tests/test_testutils.py @@ -0,0 +1,441 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Tests for testing utils (psutil.tests namespace). +""" + +import collections +import contextlib +import errno +import os +import socket +import stat +import subprocess +import unittest + +import psutil +import psutil.tests +from psutil import FREEBSD +from psutil import NETBSD +from psutil import POSIX +from psutil._common import open_binary +from psutil._common import open_text +from psutil._common import supports_ipv6 +from psutil.tests import CI_TESTING +from psutil.tests import HAS_CONNECTIONS_UNIX +from psutil.tests import PYTHON_EXE +from psutil.tests import PsutilTestCase +from psutil.tests import TestMemoryLeak +from psutil.tests import bind_socket +from psutil.tests import bind_unix_socket +from psutil.tests import call_until +from psutil.tests import chdir +from psutil.tests import create_sockets +from psutil.tests import get_free_port +from psutil.tests import is_namedtuple +from psutil.tests import mock +from psutil.tests import process_namespace +from psutil.tests import reap_children +from psutil.tests import retry +from psutil.tests import retry_on_failure +from psutil.tests import safe_mkdir +from psutil.tests import safe_rmpath +from psutil.tests import serialrun +from psutil.tests import system_namespace +from psutil.tests import tcp_socketpair +from psutil.tests import terminate +from psutil.tests import unix_socketpair +from psutil.tests import wait_for_file +from psutil.tests import wait_for_pid + + +# =================================================================== +# --- Unit tests for test utilities. +# =================================================================== + + +class TestRetryDecorator(PsutilTestCase): + + @mock.patch('time.sleep') + def test_retry_success(self, sleep): + # Fail 3 times out of 5; make sure the decorated fun returns. + + @retry(retries=5, interval=1, logfun=None) + def foo(): + while queue: + queue.pop() + 1 / 0 + return 1 + + queue = list(range(3)) + self.assertEqual(foo(), 1) + self.assertEqual(sleep.call_count, 3) + + @mock.patch('time.sleep') + def test_retry_failure(self, sleep): + # Fail 6 times out of 5; th function is supposed to raise exc. + @retry(retries=5, interval=1, logfun=None) + def foo(): + while queue: + queue.pop() + 1 / 0 + return 1 + + queue = list(range(6)) + self.assertRaises(ZeroDivisionError, foo) + self.assertEqual(sleep.call_count, 5) + + @mock.patch('time.sleep') + def test_exception_arg(self, sleep): + @retry(exception=ValueError, interval=1) + def foo(): + raise TypeError + + self.assertRaises(TypeError, foo) + self.assertEqual(sleep.call_count, 0) + + @mock.patch('time.sleep') + def test_no_interval_arg(self, sleep): + # if interval is not specified sleep is not supposed to be called + + @retry(retries=5, interval=None, logfun=None) + def foo(): + 1 / 0 + + self.assertRaises(ZeroDivisionError, foo) + self.assertEqual(sleep.call_count, 0) + + @mock.patch('time.sleep') + def test_retries_arg(self, sleep): + + @retry(retries=5, interval=1, logfun=None) + def foo(): + 1 / 0 + + self.assertRaises(ZeroDivisionError, foo) + self.assertEqual(sleep.call_count, 5) + + @mock.patch('time.sleep') + def test_retries_and_timeout_args(self, sleep): + self.assertRaises(ValueError, retry, retries=5, timeout=1) + + +class TestSyncTestUtils(PsutilTestCase): + + def test_wait_for_pid(self): + wait_for_pid(os.getpid()) + nopid = max(psutil.pids()) + 99999 + with mock.patch('psutil.tests.retry.__iter__', return_value=iter([0])): + self.assertRaises(psutil.NoSuchProcess, wait_for_pid, nopid) + + def test_wait_for_file(self): + testfn = self.get_testfn() + with open(testfn, 'w') as f: + f.write('foo') + wait_for_file(testfn) + assert not os.path.exists(testfn) + + def test_wait_for_file_empty(self): + testfn = self.get_testfn() + with open(testfn, 'w'): + pass + wait_for_file(testfn, empty=True) + assert not os.path.exists(testfn) + + def test_wait_for_file_no_file(self): + testfn = self.get_testfn() + with mock.patch('psutil.tests.retry.__iter__', return_value=iter([0])): + self.assertRaises(IOError, wait_for_file, testfn) + + def test_wait_for_file_no_delete(self): + testfn = self.get_testfn() + with open(testfn, 'w') as f: + f.write('foo') + wait_for_file(testfn, delete=False) + assert os.path.exists(testfn) + + def test_call_until(self): + ret = call_until(lambda: 1, "ret == 1") + self.assertEqual(ret, 1) + + +class TestFSTestUtils(PsutilTestCase): + + def test_open_text(self): + with open_text(__file__) as f: + self.assertEqual(f.mode, 'rt') + + def test_open_binary(self): + with open_binary(__file__) as f: + self.assertEqual(f.mode, 'rb') + + def test_safe_mkdir(self): + testfn = self.get_testfn() + safe_mkdir(testfn) + assert os.path.isdir(testfn) + safe_mkdir(testfn) + assert os.path.isdir(testfn) + + def test_safe_rmpath(self): + # test file is removed + testfn = self.get_testfn() + open(testfn, 'w').close() + safe_rmpath(testfn) + assert not os.path.exists(testfn) + # test no exception if path does not exist + safe_rmpath(testfn) + # test dir is removed + os.mkdir(testfn) + safe_rmpath(testfn) + assert not os.path.exists(testfn) + # test other exceptions are raised + with mock.patch('psutil.tests.os.stat', + side_effect=OSError(errno.EINVAL, "")) as m: + with self.assertRaises(OSError): + safe_rmpath(testfn) + assert m.called + + def test_chdir(self): + testfn = self.get_testfn() + base = os.getcwd() + os.mkdir(testfn) + with chdir(testfn): + self.assertEqual(os.getcwd(), os.path.join(base, testfn)) + self.assertEqual(os.getcwd(), base) + + +class TestProcessUtils(PsutilTestCase): + + def test_reap_children(self): + subp = self.spawn_testproc() + p = psutil.Process(subp.pid) + assert p.is_running() + reap_children() + assert not p.is_running() + assert not psutil.tests._pids_started + assert not psutil.tests._subprocesses_started + + def test_spawn_children_pair(self): + child, grandchild = self.spawn_children_pair() + self.assertNotEqual(child.pid, grandchild.pid) + assert child.is_running() + assert grandchild.is_running() + children = psutil.Process().children() + self.assertEqual(children, [child]) + children = psutil.Process().children(recursive=True) + self.assertEqual(len(children), 2) + self.assertIn(child, children) + self.assertIn(grandchild, children) + self.assertEqual(child.ppid(), os.getpid()) + self.assertEqual(grandchild.ppid(), child.pid) + + terminate(child) + assert not child.is_running() + assert grandchild.is_running() + + terminate(grandchild) + assert not grandchild.is_running() + + @unittest.skipIf(not POSIX, "POSIX only") + def test_spawn_zombie(self): + parent, zombie = self.spawn_zombie() + self.assertEqual(zombie.status(), psutil.STATUS_ZOMBIE) + + def test_terminate(self): + # by subprocess.Popen + p = self.spawn_testproc() + terminate(p) + self.assertProcessGone(p) + terminate(p) + # by psutil.Process + p = psutil.Process(self.spawn_testproc().pid) + terminate(p) + self.assertProcessGone(p) + terminate(p) + # by psutil.Popen + cmd = [PYTHON_EXE, "-c", "import time; time.sleep(60);"] + p = psutil.Popen(cmd, stdout=subprocess.PIPE, stderr=subprocess.PIPE) + terminate(p) + self.assertProcessGone(p) + terminate(p) + # by PID + pid = self.spawn_testproc().pid + terminate(pid) + self.assertProcessGone(p) + terminate(pid) + # zombie + if POSIX: + parent, zombie = self.spawn_zombie() + terminate(parent) + terminate(zombie) + self.assertProcessGone(parent) + self.assertProcessGone(zombie) + + +class TestNetUtils(PsutilTestCase): + + def bind_socket(self): + port = get_free_port() + with contextlib.closing(bind_socket(addr=('', port))) as s: + self.assertEqual(s.getsockname()[1], port) + + @unittest.skipIf(not POSIX, "POSIX only") + def test_bind_unix_socket(self): + name = self.get_testfn() + sock = bind_unix_socket(name) + with contextlib.closing(sock): + self.assertEqual(sock.family, socket.AF_UNIX) + self.assertEqual(sock.type, socket.SOCK_STREAM) + self.assertEqual(sock.getsockname(), name) + assert os.path.exists(name) + assert stat.S_ISSOCK(os.stat(name).st_mode) + # UDP + name = self.get_testfn() + sock = bind_unix_socket(name, type=socket.SOCK_DGRAM) + with contextlib.closing(sock): + self.assertEqual(sock.type, socket.SOCK_DGRAM) + + def tcp_tcp_socketpair(self): + addr = ("127.0.0.1", get_free_port()) + server, client = tcp_socketpair(socket.AF_INET, addr=addr) + with contextlib.closing(server): + with contextlib.closing(client): + # Ensure they are connected and the positions are + # correct. + self.assertEqual(server.getsockname(), addr) + self.assertEqual(client.getpeername(), addr) + self.assertNotEqual(client.getsockname(), addr) + + @unittest.skipIf(not POSIX, "POSIX only") + @unittest.skipIf(NETBSD or FREEBSD, + "/var/run/log UNIX socket opened by default") + def test_unix_socketpair(self): + p = psutil.Process() + num_fds = p.num_fds() + assert not p.connections(kind='unix') + name = self.get_testfn() + server, client = unix_socketpair(name) + try: + assert os.path.exists(name) + assert stat.S_ISSOCK(os.stat(name).st_mode) + self.assertEqual(p.num_fds() - num_fds, 2) + self.assertEqual(len(p.connections(kind='unix')), 2) + self.assertEqual(server.getsockname(), name) + self.assertEqual(client.getpeername(), name) + finally: + client.close() + server.close() + + def test_create_sockets(self): + with create_sockets() as socks: + fams = collections.defaultdict(int) + types = collections.defaultdict(int) + for s in socks: + fams[s.family] += 1 + # work around http://bugs.python.org/issue30204 + types[s.getsockopt(socket.SOL_SOCKET, socket.SO_TYPE)] += 1 + self.assertGreaterEqual(fams[socket.AF_INET], 2) + if supports_ipv6(): + self.assertGreaterEqual(fams[socket.AF_INET6], 2) + if POSIX and HAS_CONNECTIONS_UNIX: + self.assertGreaterEqual(fams[socket.AF_UNIX], 2) + self.assertGreaterEqual(types[socket.SOCK_STREAM], 2) + self.assertGreaterEqual(types[socket.SOCK_DGRAM], 2) + + +@serialrun +class TestMemLeakClass(TestMemoryLeak): + + @retry_on_failure() + def test_times(self): + def fun(): + cnt['cnt'] += 1 + cnt = {'cnt': 0} + self.execute(fun, times=10, warmup_times=15) + self.assertEqual(cnt['cnt'], 26) + + def test_param_err(self): + self.assertRaises(ValueError, self.execute, lambda: 0, times=0) + self.assertRaises(ValueError, self.execute, lambda: 0, times=-1) + self.assertRaises(ValueError, self.execute, lambda: 0, warmup_times=-1) + self.assertRaises(ValueError, self.execute, lambda: 0, tolerance=-1) + self.assertRaises(ValueError, self.execute, lambda: 0, retries=-1) + + @retry_on_failure() + @unittest.skipIf(CI_TESTING, "skipped on CI") + def test_leak_mem(self): + ls = [] + + def fun(ls=ls): + ls.append("x" * 24 * 1024) + + try: + # will consume around 3M in total + self.assertRaisesRegex(AssertionError, "extra-mem", + self.execute, fun, times=50) + finally: + del ls + + def test_unclosed_files(self): + def fun(): + f = open(__file__) + self.addCleanup(f.close) + box.append(f) + + box = [] + kind = "fd" if POSIX else "handle" + self.assertRaisesRegex(AssertionError, "unclosed " + kind, + self.execute, fun) + + def test_tolerance(self): + def fun(): + ls.append("x" * 24 * 1024) + ls = [] + times = 100 + self.execute(fun, times=times, warmup_times=0, + tolerance=200 * 1024 * 1024) + self.assertEqual(len(ls), times + 1) + + def test_execute_w_exc(self): + def fun(): + 1 / 0 + self.execute_w_exc(ZeroDivisionError, fun) + with self.assertRaises(ZeroDivisionError): + self.execute_w_exc(OSError, fun) + + def fun(): + pass + with self.assertRaises(AssertionError): + self.execute_w_exc(ZeroDivisionError, fun) + + +class TestTestingUtils(PsutilTestCase): + + def test_process_namespace(self): + p = psutil.Process() + ns = process_namespace(p) + ns.test() + fun = [x for x in ns.iter(ns.getters) if x[1] == 'ppid'][0][0] + self.assertEqual(fun(), p.ppid()) + + def test_system_namespace(self): + ns = system_namespace() + fun = [x for x in ns.iter(ns.getters) if x[1] == 'net_if_addrs'][0][0] + self.assertEqual(fun(), psutil.net_if_addrs()) + + +class TestOtherUtils(PsutilTestCase): + + def test_is_namedtuple(self): + assert is_namedtuple(collections.namedtuple('foo', 'a b c')(1, 2, 3)) + assert not is_namedtuple(tuple()) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_unicode.py b/lib/psutil/tests/test_unicode.py new file mode 100644 index 0000000..3fa3f01 --- /dev/null +++ b/lib/psutil/tests/test_unicode.py @@ -0,0 +1,355 @@ +#!/usr/bin/env python3 +# -*- coding: utf-8 -*- + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +""" +Notes about unicode handling in psutil +====================================== + +Starting from version 5.3.0 psutil adds unicode support, see: +https://github.com/giampaolo/psutil/issues/1040 +The notes below apply to *any* API returning a string such as +process exe(), cwd() or username(): + +* all strings are encoded by using the OS filesystem encoding + (sys.getfilesystemencoding()) which varies depending on the platform + (e.g. "UTF-8" on macOS, "mbcs" on Win) +* no API call is supposed to crash with UnicodeDecodeError +* instead, in case of badly encoded data returned by the OS, the + following error handlers are used to replace the corrupted characters in + the string: + * Python 3: sys.getfilesystemencodeerrors() (PY 3.6+) or + "surrogatescape" on POSIX and "replace" on Windows + * Python 2: "replace" +* on Python 2 all APIs return bytes (str type), never unicode +* on Python 2, you can go back to unicode by doing: + + >>> unicode(p.exe(), sys.getdefaultencoding(), errors="replace") + +For a detailed explanation of how psutil handles unicode see #1040. + +Tests +===== + +List of APIs returning or dealing with a string: +('not tested' means they are not tested to deal with non-ASCII strings): + +* Process.cmdline() +* Process.connections('unix') +* Process.cwd() +* Process.environ() +* Process.exe() +* Process.memory_maps() +* Process.name() +* Process.open_files() +* Process.username() (not tested) + +* disk_io_counters() (not tested) +* disk_partitions() (not tested) +* disk_usage(str) +* net_connections('unix') +* net_if_addrs() (not tested) +* net_if_stats() (not tested) +* net_io_counters() (not tested) +* sensors_fans() (not tested) +* sensors_temperatures() (not tested) +* users() (not tested) + +* WindowsService.binpath() (not tested) +* WindowsService.description() (not tested) +* WindowsService.display_name() (not tested) +* WindowsService.name() (not tested) +* WindowsService.status() (not tested) +* WindowsService.username() (not tested) + +In here we create a unicode path with a funky non-ASCII name and (where +possible) make psutil return it back (e.g. on name(), exe(), open_files(), +etc.) and make sure that: + +* psutil never crashes with UnicodeDecodeError +* the returned path matches +""" + +import os +import shutil +import traceback +import unittest +import warnings +from contextlib import closing + +import psutil +from psutil import BSD +from psutil import OPENBSD +from psutil import POSIX +from psutil import WINDOWS +from psutil._compat import PY3 +from psutil._compat import u +from psutil.tests import APPVEYOR +from psutil.tests import ASCII_FS +from psutil.tests import CI_TESTING +from psutil.tests import HAS_CONNECTIONS_UNIX +from psutil.tests import HAS_ENVIRON +from psutil.tests import HAS_MEMORY_MAPS +from psutil.tests import INVALID_UNICODE_SUFFIX +from psutil.tests import PYPY +from psutil.tests import TESTFN_PREFIX +from psutil.tests import UNICODE_SUFFIX +from psutil.tests import PsutilTestCase +from psutil.tests import bind_unix_socket +from psutil.tests import chdir +from psutil.tests import copyload_shared_lib +from psutil.tests import create_exe +from psutil.tests import get_testfn +from psutil.tests import safe_mkdir +from psutil.tests import safe_rmpath +from psutil.tests import serialrun +from psutil.tests import skip_on_access_denied +from psutil.tests import spawn_testproc +from psutil.tests import terminate + + +if APPVEYOR: + def safe_rmpath(path): # NOQA + # TODO - this is quite random and I'm not sure why it happens, + # nor I can reproduce it locally: + # https://ci.appveyor.com/project/giampaolo/psutil/build/job/ + # jiq2cgd6stsbtn60 + # safe_rmpath() happens after reap_children() so this is weird + # Perhaps wait_procs() on Windows is broken? Maybe because + # of STILL_ACTIVE? + # https://github.com/giampaolo/psutil/blob/ + # 68c7a70728a31d8b8b58f4be6c4c0baa2f449eda/psutil/arch/ + # windows/process_info.c#L146 + from psutil.tests import safe_rmpath as rm + try: + return rm(path) + except WindowsError: + traceback.print_exc() + + +def try_unicode(suffix): + """Return True if both the fs and the subprocess module can + deal with a unicode file name. + """ + sproc = None + testfn = get_testfn(suffix=suffix) + try: + safe_rmpath(testfn) + create_exe(testfn) + sproc = spawn_testproc(cmd=[testfn]) + shutil.copyfile(testfn, testfn + '-2') + safe_rmpath(testfn + '-2') + except (UnicodeEncodeError, IOError): + return False + else: + return True + finally: + if sproc is not None: + terminate(sproc) + safe_rmpath(testfn) + + +# =================================================================== +# FS APIs +# =================================================================== + + +class BaseUnicodeTest(PsutilTestCase): + funky_suffix = None + + def setUp(self): + if self.funky_suffix is not None: + if not try_unicode(self.funky_suffix): + raise self.skipTest("can't handle unicode str") + + +@serialrun +@unittest.skipIf(ASCII_FS, "ASCII fs") +@unittest.skipIf(PYPY and not PY3, "too much trouble on PYPY2") +class TestFSAPIs(BaseUnicodeTest): + """Test FS APIs with a funky, valid, UTF8 path name.""" + + funky_suffix = UNICODE_SUFFIX + + @classmethod + def setUpClass(cls): + cls.funky_name = get_testfn(suffix=cls.funky_suffix) + create_exe(cls.funky_name) + + @classmethod + def tearDownClass(cls): + safe_rmpath(cls.funky_name) + + def expect_exact_path_match(self): + # Do not expect psutil to correctly handle unicode paths on + # Python 2 if os.listdir() is not able either. + here = '.' if isinstance(self.funky_name, str) else u('.') + with warnings.catch_warnings(): + warnings.simplefilter("ignore") + return self.funky_name in os.listdir(here) + + # --- + + def test_proc_exe(self): + subp = self.spawn_testproc(cmd=[self.funky_name]) + p = psutil.Process(subp.pid) + exe = p.exe() + self.assertIsInstance(exe, str) + if self.expect_exact_path_match(): + self.assertEqual(os.path.normcase(exe), + os.path.normcase(self.funky_name)) + + def test_proc_name(self): + subp = self.spawn_testproc(cmd=[self.funky_name]) + name = psutil.Process(subp.pid).name() + self.assertIsInstance(name, str) + if self.expect_exact_path_match(): + self.assertEqual(name, os.path.basename(self.funky_name)) + + def test_proc_cmdline(self): + subp = self.spawn_testproc(cmd=[self.funky_name]) + p = psutil.Process(subp.pid) + cmdline = p.cmdline() + for part in cmdline: + self.assertIsInstance(part, str) + if self.expect_exact_path_match(): + self.assertEqual(cmdline, [self.funky_name]) + + def test_proc_cwd(self): + dname = self.funky_name + "2" + self.addCleanup(safe_rmpath, dname) + safe_mkdir(dname) + with chdir(dname): + p = psutil.Process() + cwd = p.cwd() + self.assertIsInstance(p.cwd(), str) + if self.expect_exact_path_match(): + self.assertEqual(cwd, dname) + + @unittest.skipIf(PYPY and WINDOWS, "fails on PYPY + WINDOWS") + def test_proc_open_files(self): + p = psutil.Process() + start = set(p.open_files()) + with open(self.funky_name, 'rb'): + new = set(p.open_files()) + path = (new - start).pop().path + self.assertIsInstance(path, str) + if BSD and not path: + # XXX - see https://github.com/giampaolo/psutil/issues/595 + return self.skipTest("open_files on BSD is broken") + if self.expect_exact_path_match(): + self.assertEqual(os.path.normcase(path), + os.path.normcase(self.funky_name)) + + @unittest.skipIf(not POSIX, "POSIX only") + def test_proc_connections(self): + name = self.get_testfn(suffix=self.funky_suffix) + try: + sock = bind_unix_socket(name) + except UnicodeEncodeError: + if PY3: + raise + else: + raise unittest.SkipTest("not supported") + with closing(sock): + conn = psutil.Process().connections('unix')[0] + self.assertIsInstance(conn.laddr, str) + # AF_UNIX addr not set on OpenBSD + if not OPENBSD: # XXX + self.assertEqual(conn.laddr, name) + + @unittest.skipIf(not POSIX, "POSIX only") + @unittest.skipIf(not HAS_CONNECTIONS_UNIX, "can't list UNIX sockets") + @skip_on_access_denied() + def test_net_connections(self): + def find_sock(cons): + for conn in cons: + if os.path.basename(conn.laddr).startswith(TESTFN_PREFIX): + return conn + raise ValueError("connection not found") + + name = self.get_testfn(suffix=self.funky_suffix) + try: + sock = bind_unix_socket(name) + except UnicodeEncodeError: + if PY3: + raise + else: + raise unittest.SkipTest("not supported") + with closing(sock): + cons = psutil.net_connections(kind='unix') + # AF_UNIX addr not set on OpenBSD + if not OPENBSD: + conn = find_sock(cons) + self.assertIsInstance(conn.laddr, str) + self.assertEqual(conn.laddr, name) + + def test_disk_usage(self): + dname = self.funky_name + "2" + self.addCleanup(safe_rmpath, dname) + safe_mkdir(dname) + psutil.disk_usage(dname) + + @unittest.skipIf(not HAS_MEMORY_MAPS, "not supported") + @unittest.skipIf(not PY3, "ctypes does not support unicode on PY2") + @unittest.skipIf(PYPY, "unstable on PYPY") + def test_memory_maps(self): + # XXX: on Python 2, using ctypes.CDLL with a unicode path + # opens a message box which blocks the test run. + with copyload_shared_lib(suffix=self.funky_suffix) as funky_path: + def normpath(p): + return os.path.realpath(os.path.normcase(p)) + libpaths = [normpath(x.path) + for x in psutil.Process().memory_maps()] + # ...just to have a clearer msg in case of failure + libpaths = [x for x in libpaths if TESTFN_PREFIX in x] + self.assertIn(normpath(funky_path), libpaths) + for path in libpaths: + self.assertIsInstance(path, str) + + +@unittest.skipIf(CI_TESTING, "unreliable on CI") +class TestFSAPIsWithInvalidPath(TestFSAPIs): + """Test FS APIs with a funky, invalid path name.""" + funky_suffix = INVALID_UNICODE_SUFFIX + + @classmethod + def expect_exact_path_match(cls): + # Invalid unicode names are supposed to work on Python 2. + return True + + +# =================================================================== +# Non fs APIs +# =================================================================== + + +class TestNonFSAPIS(BaseUnicodeTest): + """Unicode tests for non fs-related APIs.""" + funky_suffix = UNICODE_SUFFIX if PY3 else 'è' + + @unittest.skipIf(not HAS_ENVIRON, "not supported") + @unittest.skipIf(PYPY and WINDOWS, "segfaults on PYPY + WINDOWS") + def test_proc_environ(self): + # Note: differently from others, this test does not deal + # with fs paths. On Python 2 subprocess module is broken as + # it's not able to handle with non-ASCII env vars, so + # we use "è", which is part of the extended ASCII table + # (unicode point <= 255). + env = os.environ.copy() + env['FUNNY_ARG'] = self.funky_suffix + sproc = self.spawn_testproc(env=env) + p = psutil.Process(sproc.pid) + env = p.environ() + for k, v in env.items(): + self.assertIsInstance(k, str) + self.assertIsInstance(v, str) + self.assertEqual(env['FUNNY_ARG'], self.funky_suffix) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) diff --git a/lib/psutil/tests/test_windows.py b/lib/psutil/tests/test_windows.py new file mode 100644 index 0000000..55e6731 --- /dev/null +++ b/lib/psutil/tests/test_windows.py @@ -0,0 +1,898 @@ +#!/usr/bin/env python3 +# -*- coding: UTF-8 -* + +# Copyright (c) 2009, Giampaolo Rodola'. All rights reserved. +# Use of this source code is governed by a BSD-style license that can be +# found in the LICENSE file. + +"""Windows specific tests.""" + +import datetime +import errno +import glob +import os +import platform +import re +import signal +import subprocess +import sys +import time +import unittest +import warnings + +import psutil +from psutil import WINDOWS +from psutil._compat import FileNotFoundError +from psutil._compat import which +from psutil._compat import super +from psutil.tests import APPVEYOR +from psutil.tests import GITHUB_ACTIONS +from psutil.tests import HAS_BATTERY +from psutil.tests import IS_64BIT +from psutil.tests import PY3 +from psutil.tests import PYPY +from psutil.tests import TOLERANCE_DISK_USAGE +from psutil.tests import TOLERANCE_SYS_MEM +from psutil.tests import PsutilTestCase +from psutil.tests import mock +from psutil.tests import retry_on_failure +from psutil.tests import sh +from psutil.tests import spawn_testproc +from psutil.tests import terminate + + +if WINDOWS and not PYPY: + with warnings.catch_warnings(): + warnings.simplefilter("ignore") + import win32api # requires "pip install pywin32" + import win32con + import win32process + import wmi # requires "pip install wmi" / "make setup-dev-env" + +if WINDOWS: + from psutil._pswindows import convert_oserror + + +cext = psutil._psplatform.cext + + +@unittest.skipIf(not WINDOWS, "WINDOWS only") +@unittest.skipIf(PYPY, "pywin32 not available on PYPY") +# https://github.com/giampaolo/psutil/pull/1762#issuecomment-632892692 +@unittest.skipIf(GITHUB_ACTIONS and not PY3, "pywin32 broken on GITHUB + PY2") +class WindowsTestCase(PsutilTestCase): + pass + + +def powershell(cmd): + """Currently not used, but avalable just in case. Usage: + + >>> powershell( + "Get-CIMInstance Win32_PageFileUsage | Select AllocatedBaseSize") + """ + if not which("powershell.exe"): + raise unittest.SkipTest("powershell.exe not available") + cmdline = \ + 'powershell.exe -ExecutionPolicy Bypass -NoLogo -NonInteractive ' + \ + '-NoProfile -WindowStyle Hidden -Command "%s"' % cmd + return sh(cmdline) + + +def wmic(path, what, converter=int): + """Currently not used, but avalable just in case. Usage: + + >>> wmic("Win32_OperatingSystem", "FreePhysicalMemory") + 2134124534 + """ + out = sh("wmic path %s get %s" % (path, what)).strip() + data = "".join(out.splitlines()[1:]).strip() # get rid of the header + if converter is not None: + if "," in what: + return tuple([converter(x) for x in data.split()]) + else: + return converter(data) + else: + return data + + +# =================================================================== +# System APIs +# =================================================================== + + +class TestCpuAPIs(WindowsTestCase): + + @unittest.skipIf('NUMBER_OF_PROCESSORS' not in os.environ, + 'NUMBER_OF_PROCESSORS env var is not available') + def test_cpu_count_vs_NUMBER_OF_PROCESSORS(self): + # Will likely fail on many-cores systems: + # https://stackoverflow.com/questions/31209256 + num_cpus = int(os.environ['NUMBER_OF_PROCESSORS']) + self.assertEqual(num_cpus, psutil.cpu_count()) + + def test_cpu_count_vs_GetSystemInfo(self): + # Will likely fail on many-cores systems: + # https://stackoverflow.com/questions/31209256 + sys_value = win32api.GetSystemInfo()[5] + psutil_value = psutil.cpu_count() + self.assertEqual(sys_value, psutil_value) + + def test_cpu_count_logical_vs_wmi(self): + w = wmi.WMI() + procs = sum(proc.NumberOfLogicalProcessors + for proc in w.Win32_Processor()) + self.assertEqual(psutil.cpu_count(), procs) + + def test_cpu_count_cores_vs_wmi(self): + w = wmi.WMI() + cores = sum(proc.NumberOfCores for proc in w.Win32_Processor()) + self.assertEqual(psutil.cpu_count(logical=False), cores) + + def test_cpu_count_vs_cpu_times(self): + self.assertEqual(psutil.cpu_count(), + len(psutil.cpu_times(percpu=True))) + + def test_cpu_freq(self): + w = wmi.WMI() + proc = w.Win32_Processor()[0] + self.assertEqual(proc.CurrentClockSpeed, psutil.cpu_freq().current) + self.assertEqual(proc.MaxClockSpeed, psutil.cpu_freq().max) + + +class TestSystemAPIs(WindowsTestCase): + + def test_nic_names(self): + out = sh('ipconfig /all') + nics = psutil.net_io_counters(pernic=True).keys() + for nic in nics: + if "pseudo-interface" in nic.replace(' ', '-').lower(): + continue + if nic not in out: + raise self.fail( + "%r nic wasn't found in 'ipconfig /all' output" % nic) + + def test_total_phymem(self): + w = wmi.WMI().Win32_ComputerSystem()[0] + self.assertEqual(int(w.TotalPhysicalMemory), + psutil.virtual_memory().total) + + def test_free_phymem(self): + w = wmi.WMI().Win32_PerfRawData_PerfOS_Memory()[0] + self.assertAlmostEqual( + int(w.AvailableBytes), psutil.virtual_memory().free, + delta=TOLERANCE_SYS_MEM) + + def test_total_swapmem(self): + w = wmi.WMI().Win32_PerfRawData_PerfOS_Memory()[0] + self.assertEqual(int(w.CommitLimit) - psutil.virtual_memory().total, + psutil.swap_memory().total) + if (psutil.swap_memory().total == 0): + self.assertEqual(0, psutil.swap_memory().free) + self.assertEqual(0, psutil.swap_memory().used) + + def test_percent_swapmem(self): + if (psutil.swap_memory().total > 0): + w = wmi.WMI().Win32_PerfRawData_PerfOS_PagingFile( + Name="_Total")[0] + # calculate swap usage to percent + percentSwap = int(w.PercentUsage) * 100 / int(w.PercentUsage_Base) + # exact percent may change but should be reasonable + # assert within +/- 5% and between 0 and 100% + self.assertGreaterEqual(psutil.swap_memory().percent, 0) + self.assertAlmostEqual(psutil.swap_memory().percent, percentSwap, + delta=5) + self.assertLessEqual(psutil.swap_memory().percent, 100) + + # @unittest.skipIf(wmi is None, "wmi module is not installed") + # def test__UPTIME(self): + # # _UPTIME constant is not public but it is used internally + # # as value to return for pid 0 creation time. + # # WMI behaves the same. + # w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + # p = psutil.Process(0) + # wmic_create = str(w.CreationDate.split('.')[0]) + # psutil_create = time.strftime("%Y%m%d%H%M%S", + # time.localtime(p.create_time())) + + # Note: this test is not very reliable + @unittest.skipIf(APPVEYOR, "test not relieable on appveyor") + @retry_on_failure() + def test_pids(self): + # Note: this test might fail if the OS is starting/killing + # other processes in the meantime + w = wmi.WMI().Win32_Process() + wmi_pids = set([x.ProcessId for x in w]) + psutil_pids = set(psutil.pids()) + self.assertEqual(wmi_pids, psutil_pids) + + @retry_on_failure() + def test_disks(self): + ps_parts = psutil.disk_partitions(all=True) + wmi_parts = wmi.WMI().Win32_LogicalDisk() + for ps_part in ps_parts: + for wmi_part in wmi_parts: + if ps_part.device.replace('\\', '') == wmi_part.DeviceID: + if not ps_part.mountpoint: + # this is usually a CD-ROM with no disk inserted + break + if 'cdrom' in ps_part.opts: + break + if ps_part.mountpoint.startswith('A:'): + break # floppy + try: + usage = psutil.disk_usage(ps_part.mountpoint) + except FileNotFoundError: + # usually this is the floppy + break + self.assertEqual(usage.total, int(wmi_part.Size)) + wmi_free = int(wmi_part.FreeSpace) + self.assertEqual(usage.free, wmi_free) + # 10 MB tolerance + if abs(usage.free - wmi_free) > 10 * 1024 * 1024: + raise self.fail("psutil=%s, wmi=%s" % ( + usage.free, wmi_free)) + break + else: + raise self.fail("can't find partition %s" % repr(ps_part)) + + @retry_on_failure() + def test_disk_usage(self): + for disk in psutil.disk_partitions(): + if 'cdrom' in disk.opts: + continue + sys_value = win32api.GetDiskFreeSpaceEx(disk.mountpoint) + psutil_value = psutil.disk_usage(disk.mountpoint) + self.assertAlmostEqual(sys_value[0], psutil_value.free, + delta=TOLERANCE_DISK_USAGE) + self.assertAlmostEqual(sys_value[1], psutil_value.total, + delta=TOLERANCE_DISK_USAGE) + self.assertEqual(psutil_value.used, + psutil_value.total - psutil_value.free) + + def test_disk_partitions(self): + sys_value = [ + x + '\\' for x in win32api.GetLogicalDriveStrings().split("\\\x00") + if x and not x.startswith('A:')] + psutil_value = [x.mountpoint for x in psutil.disk_partitions(all=True) + if not x.mountpoint.startswith('A:')] + self.assertEqual(sys_value, psutil_value) + + def test_net_if_stats(self): + ps_names = set(cext.net_if_stats()) + wmi_adapters = wmi.WMI().Win32_NetworkAdapter() + wmi_names = set() + for wmi_adapter in wmi_adapters: + wmi_names.add(wmi_adapter.Name) + wmi_names.add(wmi_adapter.NetConnectionID) + self.assertTrue(ps_names & wmi_names, + "no common entries in %s, %s" % (ps_names, wmi_names)) + + def test_boot_time(self): + wmi_os = wmi.WMI().Win32_OperatingSystem() + wmi_btime_str = wmi_os[0].LastBootUpTime.split('.')[0] + wmi_btime_dt = datetime.datetime.strptime( + wmi_btime_str, "%Y%m%d%H%M%S") + psutil_dt = datetime.datetime.fromtimestamp(psutil.boot_time()) + diff = abs((wmi_btime_dt - psutil_dt).total_seconds()) + self.assertLessEqual(diff, 5) + + def test_boot_time_fluctuation(self): + # https://github.com/giampaolo/psutil/issues/1007 + with mock.patch('psutil._pswindows.cext.boot_time', return_value=5): + self.assertEqual(psutil.boot_time(), 5) + with mock.patch('psutil._pswindows.cext.boot_time', return_value=4): + self.assertEqual(psutil.boot_time(), 5) + with mock.patch('psutil._pswindows.cext.boot_time', return_value=6): + self.assertEqual(psutil.boot_time(), 5) + with mock.patch('psutil._pswindows.cext.boot_time', return_value=333): + self.assertEqual(psutil.boot_time(), 333) + + +# =================================================================== +# sensors_battery() +# =================================================================== + + +class TestSensorsBattery(WindowsTestCase): + + def test_has_battery(self): + if win32api.GetPwrCapabilities()['SystemBatteriesPresent']: + self.assertIsNotNone(psutil.sensors_battery()) + else: + self.assertIsNone(psutil.sensors_battery()) + + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_percent(self): + w = wmi.WMI() + battery_wmi = w.query('select * from Win32_Battery')[0] + battery_psutil = psutil.sensors_battery() + self.assertAlmostEqual( + battery_psutil.percent, battery_wmi.EstimatedChargeRemaining, + delta=1) + + @unittest.skipIf(not HAS_BATTERY, "no battery") + def test_power_plugged(self): + w = wmi.WMI() + battery_wmi = w.query('select * from Win32_Battery')[0] + battery_psutil = psutil.sensors_battery() + # Status codes: + # https://msdn.microsoft.com/en-us/library/aa394074(v=vs.85).aspx + self.assertEqual(battery_psutil.power_plugged, + battery_wmi.BatteryStatus == 2) + + def test_emulate_no_battery(self): + with mock.patch("psutil._pswindows.cext.sensors_battery", + return_value=(0, 128, 0, 0)) as m: + self.assertIsNone(psutil.sensors_battery()) + assert m.called + + def test_emulate_power_connected(self): + with mock.patch("psutil._pswindows.cext.sensors_battery", + return_value=(1, 0, 0, 0)) as m: + self.assertEqual(psutil.sensors_battery().secsleft, + psutil.POWER_TIME_UNLIMITED) + assert m.called + + def test_emulate_power_charging(self): + with mock.patch("psutil._pswindows.cext.sensors_battery", + return_value=(0, 8, 0, 0)) as m: + self.assertEqual(psutil.sensors_battery().secsleft, + psutil.POWER_TIME_UNLIMITED) + assert m.called + + def test_emulate_secs_left_unknown(self): + with mock.patch("psutil._pswindows.cext.sensors_battery", + return_value=(0, 0, 0, -1)) as m: + self.assertEqual(psutil.sensors_battery().secsleft, + psutil.POWER_TIME_UNKNOWN) + assert m.called + + +# =================================================================== +# Process APIs +# =================================================================== + + +class TestProcess(WindowsTestCase): + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc().pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + def test_issue_24(self): + p = psutil.Process(0) + self.assertRaises(psutil.AccessDenied, p.kill) + + def test_special_pid(self): + p = psutil.Process(4) + self.assertEqual(p.name(), 'System') + # use __str__ to access all common Process properties to check + # that nothing strange happens + str(p) + p.username() + self.assertTrue(p.create_time() >= 0.0) + try: + rss, vms = p.memory_info()[:2] + except psutil.AccessDenied: + # expected on Windows Vista and Windows 7 + if not platform.uname()[1] in ('vista', 'win-7', 'win7'): + raise + else: + self.assertTrue(rss > 0) + + def test_send_signal(self): + p = psutil.Process(self.pid) + self.assertRaises(ValueError, p.send_signal, signal.SIGINT) + + def test_num_handles_increment(self): + p = psutil.Process(os.getpid()) + before = p.num_handles() + handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + win32con.FALSE, os.getpid()) + after = p.num_handles() + self.assertEqual(after, before + 1) + win32api.CloseHandle(handle) + self.assertEqual(p.num_handles(), before) + + def test_ctrl_signals(self): + p = psutil.Process(self.spawn_testproc().pid) + p.send_signal(signal.CTRL_C_EVENT) + p.send_signal(signal.CTRL_BREAK_EVENT) + p.kill() + p.wait() + self.assertRaises(psutil.NoSuchProcess, + p.send_signal, signal.CTRL_C_EVENT) + self.assertRaises(psutil.NoSuchProcess, + p.send_signal, signal.CTRL_BREAK_EVENT) + + def test_username(self): + name = win32api.GetUserNameEx(win32con.NameSamCompatible) + if name.endswith('$'): + # When running as a service account (most likely to be + # NetworkService), these user name calculations don't produce the + # same result, causing the test to fail. + raise unittest.SkipTest('running as service account') + self.assertEqual(psutil.Process().username(), name) + + def test_cmdline(self): + sys_value = re.sub('[ ]+', ' ', win32api.GetCommandLine()).strip() + psutil_value = ' '.join(psutil.Process().cmdline()) + if sys_value[0] == '"' != psutil_value[0]: + # The PyWin32 command line may retain quotes around argv[0] if they + # were used unnecessarily, while psutil will omit them. So remove + # the first 2 quotes from sys_value if not in psutil_value. + # A path to an executable will not contain quotes, so this is safe. + sys_value = sys_value.replace('"', '', 2) + self.assertEqual(sys_value, psutil_value) + + # XXX - occasional failures + + # def test_cpu_times(self): + # handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + # win32con.FALSE, os.getpid()) + # self.addCleanup(win32api.CloseHandle, handle) + # sys_value = win32process.GetProcessTimes(handle) + # psutil_value = psutil.Process().cpu_times() + # self.assertAlmostEqual( + # psutil_value.user, sys_value['UserTime'] / 10000000.0, + # delta=0.2) + # self.assertAlmostEqual( + # psutil_value.user, sys_value['KernelTime'] / 10000000.0, + # delta=0.2) + + def test_nice(self): + handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + win32con.FALSE, os.getpid()) + self.addCleanup(win32api.CloseHandle, handle) + sys_value = win32process.GetPriorityClass(handle) + psutil_value = psutil.Process().nice() + self.assertEqual(psutil_value, sys_value) + + def test_memory_info(self): + handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + win32con.FALSE, self.pid) + self.addCleanup(win32api.CloseHandle, handle) + sys_value = win32process.GetProcessMemoryInfo(handle) + psutil_value = psutil.Process(self.pid).memory_info() + self.assertEqual( + sys_value['PeakWorkingSetSize'], psutil_value.peak_wset) + self.assertEqual( + sys_value['WorkingSetSize'], psutil_value.wset) + self.assertEqual( + sys_value['QuotaPeakPagedPoolUsage'], psutil_value.peak_paged_pool) + self.assertEqual( + sys_value['QuotaPagedPoolUsage'], psutil_value.paged_pool) + self.assertEqual( + sys_value['QuotaPeakNonPagedPoolUsage'], + psutil_value.peak_nonpaged_pool) + self.assertEqual( + sys_value['QuotaNonPagedPoolUsage'], psutil_value.nonpaged_pool) + self.assertEqual( + sys_value['PagefileUsage'], psutil_value.pagefile) + self.assertEqual( + sys_value['PeakPagefileUsage'], psutil_value.peak_pagefile) + + self.assertEqual(psutil_value.rss, psutil_value.wset) + self.assertEqual(psutil_value.vms, psutil_value.pagefile) + + def test_wait(self): + handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + win32con.FALSE, self.pid) + self.addCleanup(win32api.CloseHandle, handle) + p = psutil.Process(self.pid) + p.terminate() + psutil_value = p.wait() + sys_value = win32process.GetExitCodeProcess(handle) + self.assertEqual(psutil_value, sys_value) + + def test_cpu_affinity(self): + def from_bitmask(x): + return [i for i in range(64) if (1 << i) & x] + + handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + win32con.FALSE, self.pid) + self.addCleanup(win32api.CloseHandle, handle) + sys_value = from_bitmask( + win32process.GetProcessAffinityMask(handle)[0]) + psutil_value = psutil.Process(self.pid).cpu_affinity() + self.assertEqual(psutil_value, sys_value) + + def test_io_counters(self): + handle = win32api.OpenProcess(win32con.PROCESS_QUERY_INFORMATION, + win32con.FALSE, os.getpid()) + self.addCleanup(win32api.CloseHandle, handle) + sys_value = win32process.GetProcessIoCounters(handle) + psutil_value = psutil.Process().io_counters() + self.assertEqual( + psutil_value.read_count, sys_value['ReadOperationCount']) + self.assertEqual( + psutil_value.write_count, sys_value['WriteOperationCount']) + self.assertEqual( + psutil_value.read_bytes, sys_value['ReadTransferCount']) + self.assertEqual( + psutil_value.write_bytes, sys_value['WriteTransferCount']) + self.assertEqual( + psutil_value.other_count, sys_value['OtherOperationCount']) + self.assertEqual( + psutil_value.other_bytes, sys_value['OtherTransferCount']) + + def test_num_handles(self): + import ctypes + import ctypes.wintypes + PROCESS_QUERY_INFORMATION = 0x400 + handle = ctypes.windll.kernel32.OpenProcess( + PROCESS_QUERY_INFORMATION, 0, self.pid) + self.addCleanup(ctypes.windll.kernel32.CloseHandle, handle) + + hndcnt = ctypes.wintypes.DWORD() + ctypes.windll.kernel32.GetProcessHandleCount( + handle, ctypes.byref(hndcnt)) + sys_value = hndcnt.value + psutil_value = psutil.Process(self.pid).num_handles() + self.assertEqual(psutil_value, sys_value) + + def test_error_partial_copy(self): + # https://github.com/giampaolo/psutil/issues/875 + exc = WindowsError() + exc.winerror = 299 + with mock.patch("psutil._psplatform.cext.proc_cwd", side_effect=exc): + with mock.patch("time.sleep") as m: + p = psutil.Process() + self.assertRaises(psutil.AccessDenied, p.cwd) + self.assertGreaterEqual(m.call_count, 5) + + def test_exe(self): + # NtQuerySystemInformation succeeds if process is gone. Make sure + # it raises NSP for a non existent pid. + pid = psutil.pids()[-1] + 99999 + proc = psutil._psplatform.Process(pid) + self.assertRaises(psutil.NoSuchProcess, proc.exe) + + +class TestProcessWMI(WindowsTestCase): + """Compare Process API results with WMI.""" + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc().pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + def test_name(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + self.assertEqual(p.name(), w.Caption) + + # This fail on github because using virtualenv for test environment + @unittest.skipIf(GITHUB_ACTIONS, "unreliable path on GITHUB_ACTIONS") + def test_exe(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + # Note: wmi reports the exe as a lower case string. + # Being Windows paths case-insensitive we ignore that. + self.assertEqual(p.exe().lower(), w.ExecutablePath.lower()) + + def test_cmdline(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + self.assertEqual(' '.join(p.cmdline()), + w.CommandLine.replace('"', '')) + + def test_username(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + domain, _, username = w.GetOwner() + username = "%s\\%s" % (domain, username) + self.assertEqual(p.username(), username) + + @retry_on_failure() + def test_memory_rss(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + rss = p.memory_info().rss + self.assertEqual(rss, int(w.WorkingSetSize)) + + @retry_on_failure() + def test_memory_vms(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + vms = p.memory_info().vms + # http://msdn.microsoft.com/en-us/library/aa394372(VS.85).aspx + # ...claims that PageFileUsage is represented in Kilo + # bytes but funnily enough on certain platforms bytes are + # returned instead. + wmi_usage = int(w.PageFileUsage) + if (vms != wmi_usage) and (vms != wmi_usage * 1024): + raise self.fail("wmi=%s, psutil=%s" % (wmi_usage, vms)) + + def test_create_time(self): + w = wmi.WMI().Win32_Process(ProcessId=self.pid)[0] + p = psutil.Process(self.pid) + wmic_create = str(w.CreationDate.split('.')[0]) + psutil_create = time.strftime("%Y%m%d%H%M%S", + time.localtime(p.create_time())) + self.assertEqual(wmic_create, psutil_create) + + +# --- + + +@unittest.skipIf(not WINDOWS, "WINDOWS only") +class TestDualProcessImplementation(PsutilTestCase): + """ + Certain APIs on Windows have 2 internal implementations, one + based on documented Windows APIs, another one based + NtQuerySystemInformation() which gets called as fallback in + case the first fails because of limited permission error. + Here we test that the two methods return the exact same value, + see: + https://github.com/giampaolo/psutil/issues/304 + """ + + @classmethod + def setUpClass(cls): + cls.pid = spawn_testproc().pid + + @classmethod + def tearDownClass(cls): + terminate(cls.pid) + + def test_memory_info(self): + mem_1 = psutil.Process(self.pid).memory_info() + with mock.patch("psutil._psplatform.cext.proc_memory_info", + side_effect=OSError(errno.EPERM, "msg")) as fun: + mem_2 = psutil.Process(self.pid).memory_info() + self.assertEqual(len(mem_1), len(mem_2)) + for i in range(len(mem_1)): + self.assertGreaterEqual(mem_1[i], 0) + self.assertGreaterEqual(mem_2[i], 0) + self.assertAlmostEqual(mem_1[i], mem_2[i], delta=512) + assert fun.called + + def test_create_time(self): + ctime = psutil.Process(self.pid).create_time() + with mock.patch("psutil._psplatform.cext.proc_times", + side_effect=OSError(errno.EPERM, "msg")) as fun: + self.assertEqual(psutil.Process(self.pid).create_time(), ctime) + assert fun.called + + def test_cpu_times(self): + cpu_times_1 = psutil.Process(self.pid).cpu_times() + with mock.patch("psutil._psplatform.cext.proc_times", + side_effect=OSError(errno.EPERM, "msg")) as fun: + cpu_times_2 = psutil.Process(self.pid).cpu_times() + assert fun.called + self.assertAlmostEqual( + cpu_times_1.user, cpu_times_2.user, delta=0.01) + self.assertAlmostEqual( + cpu_times_1.system, cpu_times_2.system, delta=0.01) + + def test_io_counters(self): + io_counters_1 = psutil.Process(self.pid).io_counters() + with mock.patch("psutil._psplatform.cext.proc_io_counters", + side_effect=OSError(errno.EPERM, "msg")) as fun: + io_counters_2 = psutil.Process(self.pid).io_counters() + for i in range(len(io_counters_1)): + self.assertAlmostEqual( + io_counters_1[i], io_counters_2[i], delta=5) + assert fun.called + + def test_num_handles(self): + num_handles = psutil.Process(self.pid).num_handles() + with mock.patch("psutil._psplatform.cext.proc_num_handles", + side_effect=OSError(errno.EPERM, "msg")) as fun: + self.assertEqual(psutil.Process(self.pid).num_handles(), + num_handles) + assert fun.called + + def test_cmdline(self): + for pid in psutil.pids(): + try: + a = cext.proc_cmdline(pid, use_peb=True) + b = cext.proc_cmdline(pid, use_peb=False) + except OSError as err: + err = convert_oserror(err) + if not isinstance(err, (psutil.AccessDenied, + psutil.NoSuchProcess)): + raise + else: + self.assertEqual(a, b) + + +@unittest.skipIf(not WINDOWS, "WINDOWS only") +class RemoteProcessTestCase(PsutilTestCase): + """Certain functions require calling ReadProcessMemory. + This trivially works when called on the current process. + Check that this works on other processes, especially when they + have a different bitness. + """ + + @staticmethod + def find_other_interpreter(): + # find a python interpreter that is of the opposite bitness from us + code = "import sys; sys.stdout.write(str(sys.maxsize > 2**32))" + + # XXX: a different and probably more stable approach might be to access + # the registry but accessing 64 bit paths from a 32 bit process + for filename in glob.glob(r"C:\Python*\python.exe"): + proc = subprocess.Popen(args=[filename, "-c", code], + stdout=subprocess.PIPE, + stderr=subprocess.STDOUT) + output, _ = proc.communicate() + proc.wait() + if output == str(not IS_64BIT): + return filename + + test_args = ["-c", "import sys; sys.stdin.read()"] + + def setUp(self): + super().setUp() + + other_python = self.find_other_interpreter() + if other_python is None: + raise unittest.SkipTest( + "could not find interpreter with opposite bitness") + if IS_64BIT: + self.python64 = sys.executable + self.python32 = other_python + else: + self.python64 = other_python + self.python32 = sys.executable + + env = os.environ.copy() + env["THINK_OF_A_NUMBER"] = str(os.getpid()) + self.proc32 = self.spawn_testproc( + [self.python32] + self.test_args, + env=env, + stdin=subprocess.PIPE) + self.proc64 = self.spawn_testproc( + [self.python64] + self.test_args, + env=env, + stdin=subprocess.PIPE) + + def tearDown(self): + super().tearDown() + self.proc32.communicate() + self.proc64.communicate() + + def test_cmdline_32(self): + p = psutil.Process(self.proc32.pid) + self.assertEqual(len(p.cmdline()), 3) + self.assertEqual(p.cmdline()[1:], self.test_args) + + def test_cmdline_64(self): + p = psutil.Process(self.proc64.pid) + self.assertEqual(len(p.cmdline()), 3) + self.assertEqual(p.cmdline()[1:], self.test_args) + + def test_cwd_32(self): + p = psutil.Process(self.proc32.pid) + self.assertEqual(p.cwd(), os.getcwd()) + + def test_cwd_64(self): + p = psutil.Process(self.proc64.pid) + self.assertEqual(p.cwd(), os.getcwd()) + + def test_environ_32(self): + p = psutil.Process(self.proc32.pid) + e = p.environ() + self.assertIn("THINK_OF_A_NUMBER", e) + self.assertEqual(e["THINK_OF_A_NUMBER"], str(os.getpid())) + + def test_environ_64(self): + p = psutil.Process(self.proc64.pid) + try: + p.environ() + except psutil.AccessDenied: + pass + + +# =================================================================== +# Windows services +# =================================================================== + + +@unittest.skipIf(not WINDOWS, "WINDOWS only") +class TestServices(PsutilTestCase): + + def test_win_service_iter(self): + valid_statuses = set([ + "running", + "paused", + "start", + "pause", + "continue", + "stop", + "stopped", + ]) + valid_start_types = set([ + "automatic", + "manual", + "disabled", + ]) + valid_statuses = set([ + "running", + "paused", + "start_pending", + "pause_pending", + "continue_pending", + "stop_pending", + "stopped" + ]) + for serv in psutil.win_service_iter(): + data = serv.as_dict() + self.assertIsInstance(data['name'], str) + self.assertNotEqual(data['name'].strip(), "") + self.assertIsInstance(data['display_name'], str) + self.assertIsInstance(data['username'], str) + self.assertIn(data['status'], valid_statuses) + if data['pid'] is not None: + psutil.Process(data['pid']) + self.assertIsInstance(data['binpath'], str) + self.assertIsInstance(data['username'], str) + self.assertIsInstance(data['start_type'], str) + self.assertIn(data['start_type'], valid_start_types) + self.assertIn(data['status'], valid_statuses) + self.assertIsInstance(data['description'], str) + pid = serv.pid() + if pid is not None: + p = psutil.Process(pid) + self.assertTrue(p.is_running()) + # win_service_get + s = psutil.win_service_get(serv.name()) + # test __eq__ + self.assertEqual(serv, s) + + def test_win_service_get(self): + ERROR_SERVICE_DOES_NOT_EXIST = \ + psutil._psplatform.cext.ERROR_SERVICE_DOES_NOT_EXIST + ERROR_ACCESS_DENIED = psutil._psplatform.cext.ERROR_ACCESS_DENIED + + name = next(psutil.win_service_iter()).name() + with self.assertRaises(psutil.NoSuchProcess) as cm: + psutil.win_service_get(name + '???') + self.assertEqual(cm.exception.name, name + '???') + + # test NoSuchProcess + service = psutil.win_service_get(name) + if PY3: + args = (0, "msg", 0, ERROR_SERVICE_DOES_NOT_EXIST) + else: + args = (ERROR_SERVICE_DOES_NOT_EXIST, "msg") + exc = WindowsError(*args) + with mock.patch("psutil._psplatform.cext.winservice_query_status", + side_effect=exc): + self.assertRaises(psutil.NoSuchProcess, service.status) + with mock.patch("psutil._psplatform.cext.winservice_query_config", + side_effect=exc): + self.assertRaises(psutil.NoSuchProcess, service.username) + + # test AccessDenied + if PY3: + args = (0, "msg", 0, ERROR_ACCESS_DENIED) + else: + args = (ERROR_ACCESS_DENIED, "msg") + exc = WindowsError(*args) + with mock.patch("psutil._psplatform.cext.winservice_query_status", + side_effect=exc): + self.assertRaises(psutil.AccessDenied, service.status) + with mock.patch("psutil._psplatform.cext.winservice_query_config", + side_effect=exc): + self.assertRaises(psutil.AccessDenied, service.username) + + # test __str__ and __repr__ + self.assertIn(service.name(), str(service)) + self.assertIn(service.display_name(), str(service)) + self.assertIn(service.name(), repr(service)) + self.assertIn(service.display_name(), repr(service)) + + +if __name__ == '__main__': + from psutil.tests.runner import run_from_name + run_from_name(__file__) |