nsz Git - musl/blob - src/thread/pthread_mutex_lock.c

   1 #include "pthread_impl.h"
   2
   3 int pthread_mutex_lock(pthread_mutex_t *m)
   4 {
   5         if ((m->_m_type&15) == PTHREAD_MUTEX_NORMAL
   6             && !a_cas(&m->_m_lock, 0, EBUSY))
   7                 return 0;
   8
   9         return pthread_mutex_timedlock(m, 0);
  10 }