1 #include "pthread_impl.h"
3 int pthread_mutex_lock(pthread_mutex_t *m)
7 if (m->_m_type == PTHREAD_MUTEX_NORMAL && !a_swap(&m->_m_lock, 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)
15 __wait(&m->_m_lock, &m->_m_waiters, r, 0);