1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
|
/* This is a set of functions used to test C++ exceptions are not
* broken during greenlet switches
*/
#include "../greenlet.h"
struct exception_t {
int depth;
exception_t(int depth) : depth(depth) {}
};
/* Functions are called via pointers to prevent inlining */
static void (*p_test_exception_throw)(int depth);
static PyObject* (*p_test_exception_switch_recurse)(int depth, int left);
static void
test_exception_throw(int depth)
{
throw exception_t(depth);
}
static PyObject*
test_exception_switch_recurse(int depth, int left)
{
if (left > 0) {
return p_test_exception_switch_recurse(depth, left - 1);
}
PyObject* result = NULL;
PyGreenlet* self = PyGreenlet_GetCurrent();
if (self == NULL)
return NULL;
try {
PyGreenlet_Switch(self->parent, NULL, NULL);
p_test_exception_throw(depth);
PyErr_SetString(PyExc_RuntimeError,
"throwing C++ exception didn't work");
}
catch (exception_t& e) {
if (e.depth != depth)
PyErr_SetString(PyExc_AssertionError, "depth mismatch");
else
result = PyLong_FromLong(depth);
}
catch (...) {
PyErr_SetString(PyExc_RuntimeError, "unexpected C++ exception");
}
Py_DECREF(self);
return result;
}
/* test_exception_switch(int depth)
* - recurses depth times
* - switches to parent inside try/catch block
* - throws an exception that (expected to be caught in the same function)
* - verifies depth matches (exceptions shouldn't be caught in other greenlets)
*/
static PyObject*
test_exception_switch(PyObject* self, PyObject* args)
{
int depth;
if (!PyArg_ParseTuple(args, "i", &depth))
return NULL;
return p_test_exception_switch_recurse(depth, depth);
}
static PyMethodDef test_methods[] = {
{"test_exception_switch",
(PyCFunction)&test_exception_switch,
METH_VARARGS,
"Switches to parent twice, to test exception handling and greenlet "
"switching."},
{NULL, NULL, 0, NULL}};
#if PY_MAJOR_VERSION >= 3
# define INITERROR return NULL
static struct PyModuleDef moduledef = {PyModuleDef_HEAD_INIT,
"greenlet.tests._test_extension_cpp",
NULL,
0,
test_methods,
NULL,
NULL,
NULL,
NULL};
PyMODINIT_FUNC
PyInit__test_extension_cpp(void)
#else
# define INITERROR return
PyMODINIT_FUNC
init_test_extension_cpp(void)
#endif
{
PyObject* module = NULL;
#if PY_MAJOR_VERSION >= 3
module = PyModule_Create(&moduledef);
#else
module = Py_InitModule("greenlet.tests._test_extension_cpp", test_methods);
#endif
if (module == NULL) {
INITERROR;
}
PyGreenlet_Import();
if (_PyGreenlet_API == NULL) {
INITERROR;
}
p_test_exception_throw = test_exception_throw;
p_test_exception_switch_recurse = test_exception_switch_recurse;
#if PY_MAJOR_VERSION >= 3
return module;
#endif
}
|
