Avoid the 10 second sleep while waiting for the VCL to appear.

git-svn-id: http://www.varnish-cache.org/svn/trunk/varnish-cache@4195 d4fa192b-c00b-0410-8231-f00ffab90ce4

bin/varnishd/cache_expire.c

@@ -246,7 +246,6 @@ exp_timer(struct sess *sp, void *priv)
 	struct objcore_head *lru;
 
 	(void)priv;
-	AZ(sleep(10));		/* XXX: Takes time for VCL to arrive */
 	VCL_Get(&sp->vcl);
 	t = TIM_real();
 	while (1) {

bin/varnishd/cache_vcl.c

@@ -84,6 +84,12 @@ VCL_Refresh(struct VCL_conf **vcc)
 void
 VCL_Get(struct VCL_conf **vcc)
 {
+	static int once;
+
+	while (!once && vcl_active == NULL) {
+		sleep(1);
+	}
+	once = 1;
 
 	Lck_Lock(&vcl_mtx);
 	AN(vcl_active);