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