From: Guus Sliepen <guus@meshlink.io>
Date: Wed, 30 Oct 2019 17:19:31 +0000 (+0100)
Subject: Fix signal pipe creation when compiling with -DNDEBUG.
X-Git-Url: http://git.meshlink.io/?p=meshlink;a=commitdiff_plain;h=0f19bd98e1a95ab45d0ed46d79a07502b65a4c95;hp=11662ed5b5c53be400f4de08ee715e461d491ec1

Fix signal pipe creation when compiling with -DNDEBUG.

Argument of a call to assert() should never have side effects.
---

diff --git a/src/event.c b/src/event.c
index aed423ad..f72529ef 100644
--- a/src/event.c
+++ b/src/event.c
@@ -174,8 +174,12 @@ static void signalio_handler(event_loop_t *loop, void *data, int flags) {
 }
 
 static void pipe_init(event_loop_t *loop) {
-	assert(pipe(loop->pipefd) == 0);
-	io_add(loop, &loop->signalio, signalio_handler, NULL, loop->pipefd[0], IO_READ);
+	int result = pipe(loop->pipefd);
+	assert(result == 0);
+
+	if(result == 0) {
+		io_add(loop, &loop->signalio, signalio_handler, NULL, loop->pipefd[0], IO_READ);
+	}
 }
 
 static void pipe_exit(event_loop_t *loop) {