From: Michael Adam <obnox@samba.org>
Date: Wed, 23 Mar 2016 00:41:29 +0000 (+0100)
Subject: tevent:signal: fix -O3 error unused result of write
X-Git-Url: http://git.samba.org/?a=commitdiff_plain;h=24b267eb8656f978d11ab67a1bef298b24392cc9;p=metze%2Fsamba%2Fwip.git

tevent:signal: fix -O3 error unused result of write

some compilers don't tolerate void-casting for warn_unused_result

Signed-off-by: Michael Adam <obnox@samba.org>
Reviewed-by: Christian Ambach <ambi@samba.org>
---

diff --git a/lib/tevent/tevent_signal.c b/lib/tevent/tevent_signal.c
index 9bc11edca42f..8a0caae8136d 100644
--- a/lib/tevent/tevent_signal.c
+++ b/lib/tevent/tevent_signal.c
@@ -106,9 +106,13 @@ static void tevent_common_signal_handler(int signum)
 	/* Write to each unique event context. */
 	for (sl = sig_state->sig_handlers[signum]; sl; sl = sl->next) {
 		if (sl->se->event_ctx && sl->se->event_ctx != ev) {
+			ssize_t ret;
+
 			ev = sl->se->event_ctx;
 			/* doesn't matter if this pipe overflows */
-			(void) write(ev->pipe_fds[1], &c, 1);
+			do {
+				ret = write(ev->pipe_fds[1], &c, 1);
+			} while (ret == -1 && errno == EINTR);
 		}
 	}