From: Rusty Russell <rusty@rustcorp.com.au>
Date: Sun, 4 Feb 2018 23:31:51 +0000 (+1030)
Subject: io: don't fail if we get a signal.
X-Git-Url: https://git.ozlabs.org/?a=commitdiff_plain;h=e2d15a2bcb78dba323c4a807543fcc0cb1b03ef0;p=ccan

io: don't fail if we get a signal.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
---

diff --git a/ccan/io/poll.c b/ccan/io/poll.c
index 3354abe0..b005a97e 100644
--- a/ccan/io/poll.c
+++ b/ccan/io/poll.c
@@ -280,8 +280,13 @@ void *io_loop(struct timers *timers, struct timer **expired)
 		}
 
 		r = pollfn(pollfds, num_fds, ms_timeout);
-		if (r < 0)
+		if (r < 0) {
+			/* Signals shouldn't break us, unless they set
+			 * io_loop_return. */
+			if (errno == EINTR)
+				continue;
 			break;
+		}
 
 		for (i = 0; i < num_fds && !io_loop_return; i++) {
 			struct io_conn *c = (void *)fds[i];