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add legacy sys/ttydefaults.h header
[oweals/musl.git]
/
src
/
thread
/
pthread_mutex_lock.c
1
#include "pthread_impl.h"
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int pthread_mutex_lock(pthread_mutex_t *m)
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{
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if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_cas(&m->_m_lock, 0, EBUSY))
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return 0;
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return pthread_mutex_timedlock(m, 0);
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}