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Merge commit 'c53e796f8b69799b7ad6d28fbab981d37edf1bc9' 

* commit 'c53e796f8b69799b7ad6d28fbab981d37edf1bc9':
  thread: Provide no-op variants for pthread_once

Merged-by: Hendrik Leppkes <h.leppkes@gmail.com>
This commit is contained in:
Hendrik Leppkes 2015-10-14 23:02:35 +02:00
parent b66a94ab53 c53e796f8b
commit f05021f3f4
1 changed files with 17 additions and 0 deletions
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17
libavutil/thread.h
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@ -43,6 +43,11 @@
#define ff_mutex_unlock pthread_mutex_unlock
#define ff_mutex_destroy pthread_mutex_destroy
#define AVOnce pthread_once_t
#define AV_ONCE_INIT PTHREAD_ONCE_INIT
#define ff_thread_once(control, routine) pthread_once(control, routine)
#else
#define USE_ATOMICS 1
@ -54,6 +59,18 @@
#define ff_mutex_unlock(mutex) (0)
#define ff_mutex_destroy(mutex) (0)
#define AVOnce char
#define AV_ONCE_INIT 0
static inline int ff_thread_once(char *control, void (*routine)(void))
{
if (!*control) {
routine();
*control = 1;
}
return 0;
}
#endif
#endif /* AVUTIL_THREAD_H */