From: Andre Noll <maan@systemlinux.org>
Date: Sat, 30 Jan 2010 13:22:32 +0000 (+0100)
Subject: sched: Add sched_request_barrier_or_min_delay().
X-Git-Tag: v0.4.2~66
X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=commitdiff_plain;h=f9f12278cf917fa0ebc69391de5913f9900a5f20

sched: Add sched_request_barrier_or_min_delay().

This is what some tasks need, so add this public function to the scheduler.
---

diff --git a/sched.c b/sched.c
index 5c185715..b6efb1ae 100644
--- a/sched.c
+++ b/sched.c
@@ -289,4 +289,11 @@ void sched_request_barrier(struct timeval *barrier, struct sched *s)
 	sched_request_timeout(&diff, s);
 }
 
+void sched_request_barrier_or_min_delay(struct timeval *barrier, struct sched *s)
+{
+	struct timeval diff;
 
+	if (tv_diff(now, barrier, &diff) > 0)
+		return sched_min_delay(s);
+	sched_request_timeout(&diff, s);
+}
diff --git a/sched.h b/sched.h
index 27c72391..452e749e 100644
--- a/sched.h
+++ b/sched.h
@@ -83,3 +83,4 @@ void sched_min_delay(struct sched *s);
 void sched_request_timeout(struct timeval *timeout, struct sched *s);
 void sched_request_timeout_ms(long unsigned ms, struct sched *s);
 void sched_request_barrier(struct timeval *barrier, struct sched *s);
+void sched_request_barrier_or_min_delay(struct timeval *barrier, struct sched *s);