1 #include "pthread_impl.h" 2 __pthread_mutex_lock(pthread_mutex_t * m)3int __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 } 11 12 weak_alias(__pthread_mutex_lock, pthread_mutex_lock); 13