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blender-archive/source/blender/python/generic/bpy_threads.c

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C

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* Contributor(s): None yet
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/python/generic/bpy_threads.c
* \ingroup pygen
*
* This file contains wrapper functions related to global interpreter lock.
* these functions are slightly different from the original Python API,
* don't throw SIGABRT even if the thread state is NULL. */
#include <Python.h>
#include "BLI_utildefines.h"
#include "../BPY_extern.h"
/* analogue of PyEval_SaveThread() */
BPy_ThreadStatePtr BPY_thread_save(void)
{
PyThreadState *tstate = PyThreadState_Swap(NULL);
/* note: tstate can be NULL when quitting Blender */
if (tstate && PyEval_ThreadsInitialized()) {
PyEval_ReleaseLock();
}
return (BPy_ThreadStatePtr)tstate;
}
/* analogue of PyEval_RestoreThread() */
void BPY_thread_restore(BPy_ThreadStatePtr tstate)
{
if (tstate) {
PyEval_RestoreThread((PyThreadState *)tstate);
}
}