musl-tcc/src/thread/pthread_rwlock_trywrlock.c
2022-03-20 16:48:53 +08:00

10 lines
218 B
C

#include "pthread_impl.h"
int __pthread_rwlock_trywrlock(pthread_rwlock_t *rw)
{
if (a_cas(&rw->_rw_lock, 0, 0x7fffffff)) return EBUSY;
return 0;
}
weak_alias(__pthread_rwlock_trywrlock, pthread_rwlock_trywrlock);