Rich Felker
4820f9268d
problem 1: mutex type from the attribute was being ignored by pthread_mutex_init, so recursive/errorchecking mutexes were never being used at all. problem 2: ownership of recursive mutexes was not being enforced at unlock time.
17 lines
351 B
C
17 lines
351 B
C
#include "pthread_impl.h"
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int pthread_mutex_unlock(pthread_mutex_t *m)
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{
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if (m->_m_type != PTHREAD_MUTEX_NORMAL) {
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if (m->_m_owner != pthread_self()->tid)
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return EPERM;
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if (m->_m_type == PTHREAD_MUTEX_RECURSIVE && --m->_m_count)
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return 0;
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}
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m->_m_owner = 0;
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m->_m_lock = 0;
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if (m->_m_waiters) __wake(&m->_m_lock, 1, 0);
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return 0;
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}
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