#include "pthread_impl.h"
+void __vm_lock_impl(int);
+void __vm_unlock_impl(void);
+
int pthread_mutex_unlock(pthread_mutex_t *m)
{
pthread_t self;
int waiters = m->_m_waiters;
int cont;
+ int robust = 0;
if (m->_m_type != PTHREAD_MUTEX_NORMAL) {
if (!m->_m_lock)
if ((m->_m_type&3) == PTHREAD_MUTEX_RECURSIVE && m->_m_count)
return m->_m_count--, 0;
if (m->_m_type >= 4) {
+ robust = 1;
self->robust_list.pending = &m->_m_next;
*(void **)m->_m_prev = m->_m_next;
if (m->_m_next) ((void **)m->_m_next)[-1] = m->_m_prev;
- cont = a_swap(&m->_m_lock, 0);
- self->robust_list.pending = 0;
- goto wake;
+ __vm_lock_impl(+1);
}
}
cont = a_swap(&m->_m_lock, 0);
-wake:
+ if (robust) {
+ self->robust_list.pending = 0;
+ __vm_unlock_impl();
+ }
if (waiters || cont<0)
__wake(&m->_m_lock, 1, 0);
return 0;