Add test program for windowing, implement proper windowing

git-svn-id: https://origsvn.digium.com/svn/libpri/trunk@79 2fbb986a-6c06-0410-b554-c9c1f0a7f128

pri.c

@@ -72,8 +72,8 @@ struct pri *pri_new(int fd, int node, int switchtype)
 		p->q931_rxcount = 0;
 		p->q931_txcount = 0;
 #endif
-		/* Start Q.921 layer */
-		q921_start(p, 1);
+		/* Start Q.921 layer, Wait if we're the network */
+		q921_start(p, p->localtype == PRI_CPE);
 	}
 	return p;
 }
@@ -338,6 +338,11 @@ void pri_set_overlapdial(struct pri *pri,int state)
 	pri->overlapdial = state;
 }
 
+int pri_fd(struct pri *pri)
+{
+	return pri->fd;
+}
+
 void pri_dump_info(struct pri *pri)
 {
 #ifdef LIBPRI_COUNTERS