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
|
/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
/** \file
* \ingroup pythonintern
*
* This file inserts an exit callback into Python's 'atexit' module.
* Without this sys.exit() can crash because blender is not properly closing
* resources.
*/
#include <Python.h>
#include "BLI_utildefines.h"
#include "bpy.h" /* own include */
#include "bpy_capi_utils.h"
#include "WM_api.h"
static PyObject *bpy_atexit(PyObject *UNUSED(self), PyObject *UNUSED(args), PyObject *UNUSED(kw))
{
/* close down enough of blender at least not to crash */
struct bContext *C = BPY_context_get();
WM_exit_ex(C, false);
Py_RETURN_NONE;
}
static PyMethodDef meth_bpy_atexit = {"bpy_atexit", (PyCFunction)bpy_atexit, METH_NOARGS, NULL};
static PyObject *func_bpy_atregister = NULL; /* borrowed reference, `atexit` holds. */
static void atexit_func_call(const char *func_name, PyObject *atexit_func_arg)
{
/* NOTE(campbell): no error checking, if any of these fail we'll get a crash
* this is intended, but if its problematic it could be changed. */
PyObject *atexit_mod = PyImport_ImportModuleLevel("atexit", NULL, NULL, NULL, 0);
PyObject *atexit_func = PyObject_GetAttrString(atexit_mod, func_name);
PyObject *args = PyTuple_New(1);
PyObject *ret;
PyTuple_SET_ITEM(args, 0, atexit_func_arg);
Py_INCREF(atexit_func_arg); /* only incref so we don't dec'ref along with 'args' */
ret = PyObject_CallObject(atexit_func, args);
Py_DECREF(atexit_mod);
Py_DECREF(atexit_func);
Py_DECREF(args);
if (ret) {
Py_DECREF(ret);
}
else { /* should never happen */
PyErr_Print();
}
}
void BPY_atexit_register(void)
{
/* atexit module owns this new function reference */
BLI_assert(func_bpy_atregister == NULL);
func_bpy_atregister = (PyObject *)PyCFunction_New(&meth_bpy_atexit, NULL);
atexit_func_call("register", func_bpy_atregister);
}
void BPY_atexit_unregister(void)
{
BLI_assert(func_bpy_atregister != NULL);
atexit_func_call("unregister", func_bpy_atregister);
func_bpy_atregister = NULL; /* don't really need to set but just in case */
}
|
