Imported Debian version 2.5.0~trusty1.1
[deb_ffmpeg.git] / ffmpeg / libavutil / thread.h
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f6fa7814
DM
1/*
2 * This file is part of FFmpeg.
3 *
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.
8 *
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.
13 *
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
17 */
18
19// This header should only be used to simplify code where
20// threading is optional, not as a generic threading abstraction.
21
22#ifndef AVUTIL_THREAD_H
23#define AVUTIL_THREAD_H
24
25#include "config.h"
26
27#if HAVE_PTHREADS || HAVE_W32THREADS || HAVE_OS2THREADS
28
29#define USE_ATOMICS 0
30
31#if HAVE_PTHREADS
32#include <pthread.h>
33#elif HAVE_OS2THREADS
34#include "compat/os2threads.h"
35#else
36#include "compat/w32pthreads.h"
37#endif
38
39#define AVMutex pthread_mutex_t
40
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
45
46#else
47
48#define USE_ATOMICS 1
49
50#define AVMutex char
51
52#define ff_mutex_init(mutex, attr) (0)
53#define ff_mutex_lock(mutex) (0)
54#define ff_mutex_unlock(mutex) (0)
55#define ff_mutex_destroy(mutex) (0)
56
57#endif
58
59#endif /* AVUTIL_THREAD_H */