Add more paranoia to the poll waiter.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4484 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_acceptor.c

@@ -97,7 +97,7 @@ static const struct linger linger = {
 
 static unsigned char	need_sndtimeo, need_rcvtimeo, need_linger, need_test;
 
-int vca_pipes[2];
+int vca_pipes[2] = { -1, -1 };
 
 static void
 sock_test(int fd)
@@ -344,7 +344,6 @@ vca_return_session(struct sess *sp)
 		vca_act->pass(sp);
 }
 
-
 /*--------------------------------------------------------------------*/
 
 static void

bin/varnishd/cache_waiter_poll.c

@@ -122,9 +122,17 @@ vca_main(void *arg)
 		assert(hpoll < npoll);
 		while (hpoll > 0 && pollfd[hpoll].fd == -1)
 			hpoll--;
+		assert(vca_pipes[0] <= hpoll);
+		assert(pollfd[vca_pipes[0]].fd = vca_pipes[0]);
+		assert(pollfd[vca_pipes[1]].fd = -1);
 		v = poll(pollfd, hpoll + 1, 100);
 		assert(v >= 0);
 		if (v && pollfd[vca_pipes[0]].revents) {
+			
+			if (pollfd[vca_pipes[0]].revents != POLLIN)
+				VSL(SLT_Debug, 0, "pipe.revents= 0x%x",
+				    pollfd[vca_pipes[0]].revents);
+			assert(pollfd[vca_pipes[0]].revents == POLLIN);
 			v--;
 			i = read(vca_pipes[0], ss, sizeof ss);
 			assert(i >= 0);

bin/varnishtest/tests/b00009.vtc

@@ -13,4 +13,8 @@ client c1 {
 	txreq -url "/"
 	rxresp
 	expect resp.status == 200
+	delay .1
+	txreq -url "/"
+	rxresp
+	expect resp.status == 200
 } -run