[lttng-dev] [lttng-tools 2/2] Fix: relayd: revents may be 0 when using poll()

[Philippe Proulx]

Refs: #747

Signed-off-by: Philippe Proulx <eeppeliteloop at gmail.com>
---
 src/bin/lttng-relayd/main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/bin/lttng-relayd/main.c b/src/bin/lttng-relayd/main.c
index 00b8735..07cb8f5 100644
--- a/src/bin/lttng-relayd/main.c
+++ b/src/bin/lttng-relayd/main.c
@@ -2499,6 +2499,11 @@ restart:
 
 			health_code_update();
 
+			/* Do not waste time if no returned events for this fd */
+			if (!revents) {
+				continue;
+			}
+
 			/* Thread quit pipe has been closed. Killing thread. */
 			ret = check_thread_quit_pipe(pollfd, revents);
 			if (ret) {
-- 
2.1.3