1 #include "pthread_impl.h"
8 static void unwait(pthread_cond_t *c, pthread_mutex_t *m)
12 /* Cannot leave waiting status if there are any live broadcasters
13 * which might be inspecting/using the mutex. */
14 while ((w=c->_c_bcast)) __wait(&c->_c_bcast, &c->_c_leavers, w, 0);
16 /* If the waiter count is zero, it must be the case that the
17 * caller's count has been moved to the mutex due to bcast. */
19 while (w && a_cas(&c->_c_waiters, w, w-1)!=w);
20 if (!w) a_dec(&m->_m_waiters);
23 static void cleanup(void *p)
27 pthread_mutex_lock(cm->m);
30 int pthread_cond_timedwait(pthread_cond_t *c, pthread_mutex_t *m, const struct timespec *ts)
32 struct cm cm = { .c=c, .m=m };
35 if (ts && ts->tv_nsec >= 1000000000UL)
40 if (c->_c_mutex != (void *)-1) c->_c_mutex = m;
42 a_inc(&c->_c_waiters);
43 c->_c_block = tid = pthread_self()->tid;
45 if ((r=pthread_mutex_unlock(m))) return r;
47 do e = __timedwait(&c->_c_block, tid, c->_c_clock, ts, cleanup, &cm, 0);
48 while (c->_c_block == tid && (!e || e==EINTR));
49 if (e == EINTR) e = 0;
53 if ((r=pthread_mutex_lock(m))) return r;