source:
EcnlProtoTool/trunk/musl-1.1.18/src/thread/pthread_spin_lock.c@
445
Last change on this file since 445 was 444, checked in by , 4 years ago | |
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File size: 166 bytes |
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1 | #include "pthread_impl.h" |
2 | #include <errno.h> |
3 | |
4 | int pthread_spin_lock(pthread_spinlock_t *s) |
5 | { |
6 | while (*(volatile int *)s || a_cas(s, 0, EBUSY)) a_spin(); |
7 | return 0; |
8 | } |
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