notify: loop while no signal is pending

pthread_cond_wait() may wake up spuriously. To prevent superfluous state checks, loop until the "pending" flag becomes true. Removed the dangerous assertion.

notify: loop while no signal is pending
b42974ee · Max Kellermann · 46eda29d · b42974ee
Commit b42974ee authored Oct 08, 2008 by Max Kellermann
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notify.c src/notify.c +1 -2

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--- a/src/notify.c
+++ b/src/notify.c
@@ -43,9 +43,8 @@ void notify_deinit(struct notify *notify)
 void notify_wait(struct notify *notify)
 {
 	pthread_mutex_lock(&notify->mutex);
-	if (!notify->pending)
+	while (!notify->pending)
 		pthread_cond_wait(&notify->cond, &notify->mutex);
-	assert(notify->pending);
 	notify->pending = 0;
 	pthread_mutex_unlock(&notify->mutex);
 }