From 7f450a52f60ac543540a8ef50fd6d440bf0d4c8a Mon Sep 17 00:00:00 2001
From: Michael Stapelberg <michael@stapelberg.de>
Date: Thu, 21 Aug 2014 09:34:03 +0200
Subject: [PATCH] Die when the X11 connection breaks during runtime (Thanks
 Eduan)

---
 i3lock.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/i3lock.c b/i3lock.c
index b1be828..b2dbd6b 100644
--- a/i3lock.c
+++ b/i3lock.c
@@ -534,6 +534,9 @@ static void xcb_prepare_cb(EV_P_ ev_prepare *w, int revents) {
 static void xcb_check_cb(EV_P_ ev_check *w, int revents) {
     xcb_generic_event_t *event;
 
+    if (xcb_connection_has_error(conn))
+        errx(EXIT_FAILURE, "X11 connection broke, did your server terminate?\n");
+
     while ((event = xcb_poll_for_event(conn)) != NULL) {
         if (event->response_type == 0) {
             xcb_generic_error_t *error = (xcb_generic_error_t*)event;