diff options
Diffstat (limited to 'alsaloop/pcmjob.c')
| -rw-r--r-- | alsaloop/pcmjob.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/alsaloop/pcmjob.c b/alsaloop/pcmjob.c index 139b6fd..f32180c 100644 --- a/alsaloop/pcmjob.c +++ b/alsaloop/pcmjob.c @@ -62,11 +62,22 @@ static const char *src_types[] = { }; #endif -static pthread_mutex_t pcm_open_mutex = - PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP; +static pthread_once_t pcm_open_mutex_once = PTHREAD_ONCE_INIT; +static pthread_mutex_t pcm_open_mutex; + +static void pcm_open_init_mutex(void) +{ + pthread_mutexattr_t attr; + + pthread_mutexattr_init(&attr); + pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE); + pthread_mutex_init(&pcm_open_mutex, &attr); + pthread_mutexattr_destroy(&attr); +} static inline void pcm_open_lock(void) { + pthread_once(&pcm_open_mutex_once, pcm_open_init_mutex); if (workarounds & WORKAROUND_SERIALOPEN) pthread_mutex_lock(&pcm_open_mutex); } |