From: Jérémie Galarneau <jeremie.galarneau@efficios.com>
Date: Mon, 19 Oct 2015 22:00:42 +0000 (-0400)
Subject: Fix: Retry poll on interruption
X-Git-Tag: v2.8.0-rc1~251
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=a9b0dbc2405118ef5c69b7834f7cb4617b883cd1;p=lttng-tools.git

Fix: Retry poll on interruption

Signed-off-by: Jérémie Galarneau <jeremie.galarneau@efficios.com>
---

diff --git a/src/common/compat/compat-poll.c b/src/common/compat/compat-poll.c
index e4f1a3fed..cc280c764 100644
--- a/src/common/compat/compat-poll.c
+++ b/src/common/compat/compat-poll.c
@@ -268,7 +268,9 @@ int compat_poll_wait(struct lttng_poll_event *events, int timeout)
 		}
 	}
 
-	ret = poll(events->wait.events, events->wait.nb_fd, timeout);
+	do {
+		ret = poll(events->wait.events, events->wait.nb_fd, timeout);
+	} while (ret == -1 && errno == EINTR);
 	if (ret < 0) {
 		/* At this point, every error is fatal */
 		PERROR("poll wait");