2 * This file is part of FFmpeg.
4 * FFmpeg is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
9 * FFmpeg is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with FFmpeg; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 // This header should only be used to simplify code where
20 // threading is optional, not as a generic threading abstraction.
22 #ifndef AVUTIL_THREAD_H
23 #define AVUTIL_THREAD_H
27 #if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
34 #include "compat/os2threads.h"
36 #include "compat/w32pthreads.h"
39 #define AVMutex pthread_mutex_t
41 #define ff_mutex_init pthread_mutex_init
42 #define ff_mutex_lock pthread_mutex_lock
43 #define ff_mutex_unlock pthread_mutex_unlock
44 #define ff_mutex_destroy pthread_mutex_destroy
46 #define AVOnce pthread_once_t
47 #define AV_ONCE_INIT PTHREAD_ONCE_INIT
49 #define ff_thread_once(control, routine) pthread_once(control, routine)
57 #define ff_mutex_init(mutex, attr) (0)
58 #define ff_mutex_lock(mutex) (0)
59 #define ff_mutex_unlock(mutex) (0)
60 #define ff_mutex_destroy(mutex) (0)
63 #define AV_ONCE_INIT 0
65 static inline int ff_thread_once(char *control, void (*routine)(void))
76 #endif /* AVUTIL_THREAD_H */