From 5d6df44a79813acaf8203528c25f3c30bc5c7c6a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Daniel=20Ekl=C3=B6f?= <daniel@ekloef.se>
Date: Sun, 22 Sep 2019 11:59:34 +0200
Subject: [PATCH] bar: signal abort (to main loop) when backend fails

---
 bar/bar.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/bar/bar.c b/bar/bar.c
index 19ea36d..2a59e9a 100644
--- a/bar/bar.c
+++ b/bar/bar.c
@@ -7,6 +7,7 @@
 #include <stdbool.h>
 #include <threads.h>
 #include <assert.h>
+#include <unistd.h>
 
 #include <sys/eventfd.h>
 
@@ -238,6 +239,7 @@ run(struct bar *_bar)
 
     if (!bar->backend.iface->setup(_bar)) {
         bar->backend.iface->cleanup(_bar);
+        write(_bar->abort_fd, &(uint64_t){1}, sizeof(uint64_t));
         return 1;
     }