source:
asp3_tinet_ecnl_arm/trunk/musl-1.1.18/src/thread/mtx_lock.c
Last change on this file was 352, checked in by , 6 years ago | |
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File size: 351 bytes |
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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 | } |
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