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https://github.com/fluencelabs/musl
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initial check-in, version 0.5.0
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17
src/thread/pthread_rwlock_unlock.c
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17
src/thread/pthread_rwlock_unlock.c
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#include "pthread_impl.h"
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int pthread_rwlock_unlock(pthread_rwlock_t *rw)
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{
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struct pthread *self = pthread_self();
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if (rw->__owner == self->tid) {
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rw->__owner = 0;
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a_store(&rw->__wrlock, 0);
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if (rw->__waiters)
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__wake(&rw->__wrlock, -1, 0);
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return 0;
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}
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a_dec(&rw->__readers);
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if (rw->__waiters && !rw->__readers)
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__wake(&rw->__readers, 1, 0);
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return 0;
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}
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