#include "pthread_impl.h" #ifndef __LITEOS__ extern int __pthread_mutex_timedlock_inner(pthread_mutex_t *restrict m, const struct timespec *restrict at); #endif int __pthread_mutex_lock(pthread_mutex_t *m) { if ((m->_m_type&15) == PTHREAD_MUTEX_NORMAL && !a_cas(&m->_m_lock, 0, EBUSY)) return 0; #ifndef __LITEOS__ return __pthread_mutex_timedlock_inner(m, 0); #else return __pthread_mutex_timedlock(m, 0); #endif } weak_alias(__pthread_mutex_lock, pthread_mutex_lock);