| Jens Gustedt | 8b04729 | 2014-09-06 22:07:22 -0400 | [diff] [blame] | 1 | #include "pthread_impl.h" |
| 2 | #include <threads.h> | ||||
| 3 | |||||
| 4 | int mtx_lock(mtx_t *m) | ||||
| 5 | { | ||||
| 6 | if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_cas(&m->_m_lock, 0, EBUSY)) | ||||
| 7 | return thrd_success; | ||||
| 8 | /* Calling mtx_timedlock with a null pointer is an extension. | ||||
| 9 | * It is convenient, here to avoid duplication of the logic | ||||
| 10 | * for return values. */ | ||||
| 11 | return mtx_timedlock(m, 0); | ||||
| 12 | } | ||||