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Diffstat (limited to 'src/thread/pthread_cond_broadcast.c')
-rw-r--r--src/thread/pthread_cond_broadcast.c39
1 files changed, 4 insertions, 35 deletions
diff --git a/src/thread/pthread_cond_broadcast.c b/src/thread/pthread_cond_broadcast.c
index 18e778f3..69f840fb 100644
--- a/src/thread/pthread_cond_broadcast.c
+++ b/src/thread/pthread_cond_broadcast.c
@@ -1,43 +1,12 @@
 #include "pthread_impl.h"
 
+int __private_cond_signal(pthread_cond_t *, int);
+
 int pthread_cond_broadcast(pthread_cond_t *c)
 {
-	pthread_mutex_t *m;
-
+	if (!c->_c_shared) return __private_cond_signal(c, -1);
 	if (!c->_c_waiters) return 0;
-
 	a_inc(&c->_c_seq);
-
-	/* If cond var is process-shared, simply wake all waiters. */
-	if (c->_c_mutex == (void *)-1) {
-		__wake(&c->_c_seq, -1, 0);
-		return 0;
-	}
-
-	/* Block waiters from returning so we can use the mutex. */
-	while (a_swap(&c->_c_lock, 1))
-		__wait(&c->_c_lock, &c->_c_lockwait, 1, 1);
-	if (!c->_c_waiters)
-		goto out;
-	m = c->_c_mutex;
-
-	/* Move waiter count to the mutex */
-	a_fetch_add(&m->_m_waiters, c->_c_waiters2);
-	c->_c_waiters2 = 0;
-
-	/* Perform the futex requeue, waking one waiter unless we know
-	 * that the calling thread holds the mutex. */
-	int wake_cnt = !(m->_m_type & 3)
-		|| (m->_m_lock&INT_MAX)!=__pthread_self()->tid;
-	if (m->_m_type & 128) wake_cnt = INT_MAX;
-	__syscall(SYS_futex, &c->_c_seq, FUTEX_REQUEUE | 128,
-		wake_cnt, INT_MAX, &m->_m_lock) != -EINVAL ||
-	__syscall(SYS_futex, &c->_c_seq, FUTEX_REQUEUE,
-		wake_cnt, INT_MAX, &m->_m_lock);
-
-out:
-	a_store(&c->_c_lock, 0);
-	if (c->_c_lockwait) __wake(&c->_c_lock, 1, 1);
-
+	__wake(&c->_c_seq, -1, 0);
 	return 0;
 }