1 #include "pthread_impl.h"
3 int pthread_mutex_timedlock(pthread_mutex_t *restrict m, const struct timespec *restrict at)
7 if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_cas(&m->_m_lock, 0, EBUSY))
10 while ((r=pthread_mutex_trylock(m)) == EBUSY) {
11 if (!(r=m->_m_lock) || (r&0x40000000)) continue;
12 if ((m->_m_type&3) == PTHREAD_MUTEX_ERRORCHECK
13 && (r&0x1fffffff) == pthread_self()->tid)
16 a_inc(&m->_m_waiters);
18 a_cas(&m->_m_lock, r, t);
19 r = __timedwait(&m->_m_lock, t, CLOCK_REALTIME, at, 0, 0, 0);
20 a_dec(&m->_m_waiters);
21 if (r && r != EINTR) break;