make test client notice if server closed on him

Signed-off-by: Andy Green <andy@warmcat.com>
diff --git a/test-server/test-client.c b/test-server/test-client.c
index 52ce477..e887971 100644
--- a/test-server/test-client.c
+++ b/test-server/test-client.c
@@ -29,6 +29,7 @@
 #include <poll.h>
 
 static unsigned int opts;
+static int was_closed;
 
 /*
  * This demo shows how to connect multiple websockets simultaneously to a
@@ -91,6 +92,11 @@
 
 	switch (reason) {
 
+	case LWS_CALLBACK_CLOSED:
+		fprintf(stderr, "LWS_CALLBACK_CLOSED\n");
+		was_closed = 1;
+		break;
+
 	case LWS_CALLBACK_CLIENT_ESTABLISHED:
 
 		/*
@@ -256,9 +262,11 @@
 	 */
 
 	n = 0;
-	while (n >= 0)
+	while (n >= 0 && !was_closed)
 		n = libwebsocket_service(context, 1000);
 
+	fprintf(stderr, "Exiting\n");
+
 	libwebsocket_context_destroy(context);
 
 	return 0;