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add fast path for normal mutexes back to pthread_mutex_lock

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Rich Felker 2011-08-07 04:50:02 -04:00
commit b2b95a58b4
1 changed files with 3 additions and 0 deletions
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3
src/thread/pthread_mutex_lock.c
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@ -2,5 +2,8 @@
int pthread_mutex_lock(pthread_mutex_t *m) int pthread_mutex_lock(pthread_mutex_t *m)
{ {
if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_cas(&m->_m_lock, 0, EBUSY))
return 0;
return pthread_mutex_timedlock(m, 0); return pthread_mutex_timedlock(m, 0);
} }