X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=sched.c;h=5c1857151ffd3d2efd26c5780056a513e1ed1ad0;hp=e58483e9385e5092c094ac0f2b30b06c905e6627;hb=72ec8363472a01dfe107ffa87d15236f68dfe3fa;hpb=fc100a582159c001bd5eb2244f314343309bb503

diff --git a/sched.c b/sched.c
index e58483e9..5c185715 100644
--- a/sched.c
+++ b/sched.c
@@ -120,6 +120,16 @@ again:
 	ret = s->select_function(s->max_fileno + 1, &s->rfds, &s->wfds, &s->timeout);
 	if (ret < 0)
 		return ret;
+	if (ret == 0) {
+		/*
+		 * APUE: Be careful not to check the descriptor sets on return
+		 * unless the return value is greater than zero. The return
+		 * state of the descriptor sets is implementation dependent if
+		 * either a signal is caught or the timer expires.
+		 */
+		FD_ZERO(&s->rfds);
+		FD_ZERO(&s->wfds);
+	}
 	gettimeofday(now, NULL);
 	sched_post_select(s);
 	if (list_empty(&pre_select_list) && list_empty(&post_select_list))