From 3f226d8cceb3e51232023f3078d81b25901b49e2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Mon, 7 Jan 2019 18:27:28 +0100
Subject: [PATCH] bar: detect XCB disconnect (and abort)

---
 bar.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/bar.c b/bar.c
index d5be6f5..4a715c6 100644
--- a/bar.c
+++ b/bar.c
@@ -597,6 +597,12 @@ run(struct bar_run_context *run_ctx)
         if (fds[0].revents && POLLIN)
             break;
 
+        if (fds[1].revents & POLLHUP) {
+            LOG_WARN("disconnected from XCB");
+            write(run_ctx->abort_fd, &(uint64_t){1}, sizeof(uint64_t));
+            break;
+        }
+
         for (xcb_generic_event_t *e = xcb_wait_for_event(bar->conn);
              e != NULL;
              e = xcb_poll_for_event(bar->conn))