X-Git-Url: http://git.tuebingen.mpg.de/?a=blobdiff_plain;ds=sidebyside;f=ao_write.c;fp=ao_write.c;h=fc65af60b3ca06735474e95c89de25387c1c9702;hb=41cb0352145fb8f95b6c14e69beb96efdd0e9b33;hp=52c4b11e1a11c51a419bb32bbc58c6052c7221cd;hpb=751e3811e99c744f9f651b191950010ce118eb78;p=paraslash.git

diff --git a/ao_write.c b/ao_write.c
index 52c4b11e..fc65af60 100644
--- a/ao_write.c
+++ b/ao_write.c
@@ -57,8 +57,17 @@ static void aow_pre_select(struct sched *s, struct task *t)
 	if (pawd)
 		pthread_mutex_unlock(&pawd->mutex);
 
-	if (ret == 0)
-		return;
+	if (ret == 0) {
+		/*
+		 * Even though the node status is zero, we might have data
+		 * available, but the output buffer is full. If we don't set a
+		 * timeout here, we are woken up only if new data arrives,
+		 * which might be too late and result in a buffer underrun in
+		 * the playing thread. To avoid this we never sleep longer than
+		 * the (default) buffer time.
+		 */
+		return sched_request_timeout_ms(20, s);
+	}
 	sched_min_delay(s);
 }