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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 */ |