#include "pthread_impl.h"
-static void unlock(pthread_cond_t *c)
-{
- a_dec(&c->_c_bcast);
- if (c->_c_leavers) __wake(&c->_c_bcast, -1, 0);
-}
+int __private_cond_signal(pthread_cond_t *, int);
int pthread_cond_broadcast(pthread_cond_t *c)
{
- pthread_mutex_t *m;
- int w;
-
+ if (!c->_c_shared) return __private_cond_signal(c, -1);
if (!c->_c_waiters) return 0;
- a_inc(&c->_c_bcast);
- if (!c->_c_waiters) {
- unlock(c);
- return 0;
- }
-
- a_store(&c->_c_block, 0);
-
- m = c->_c_mutex;
-
- /* If mutex ptr is not available, simply wake all waiters. */
- if (m == (void *)-1) {
- unlock(c);
- __wake(&c->_c_block, -1, 0);
- return 0;
- }
-
- /* Move waiter count to the mutex */
- w = a_swap(&c->_c_waiters, 0);
- a_fetch_add(&m->_m_waiters, w);
-
- /* Perform the futex requeue, waking one waiter unless we know
- * that the calling thread holds the mutex. */
- __syscall(SYS_futex, &c->_c_block, FUTEX_REQUEUE,
- !m->_m_type || (m->_m_lock&INT_MAX)!=pthread_self()->tid,
- INT_MAX, &m->_m_lock);
-
- unlock(c);
+ a_inc(&c->_c_seq);
+ __wake(&c->_c_seq, -1, 0);
return 0;
}