From: Andre Noll <maan@systemlinux.org>
Date: Sun, 19 Jul 2009 12:10:31 +0000 (+0200)
Subject: audiod: Only call audiod_status_dump twice per second.
X-Git-Tag: v0.4.0~50^2~8
X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=commitdiff_plain;h=9e4f290dee7906b89cb78f10ddb061bef909f848

audiod: Only call audiod_status_dump twice per second.

audiod_status_dump() is quite expensive and is called in a rather hot path.
---

diff --git a/audiod.c b/audiod.c
index 32c83941..3d0cd648 100644
--- a/audiod.c
+++ b/audiod.c
@@ -902,8 +902,15 @@ static void command_post_select(struct sched *s, struct task *t)
 {
 	int ret;
 	struct command_task *ct = container_of(t, struct command_task, task);
+	static struct timeval last_status_dump;
+	struct timeval tmp;
+
+	tv_add(&last_status_dump, &(struct timeval){0, 500 * 1000}, &tmp);
+	if (tv_diff(&tmp, now, NULL) < 0) {
+		audiod_status_dump();
+		last_status_dump = *now;
+	}
 
-	audiod_status_dump();
 	if (!FD_ISSET(ct->fd, &s->rfds))
 		return;
 	ret = handle_connect(ct->fd);