Event: Fix typo

Signed-off-by: Haomai Wang <haomaiwang@gmail.com>

diff --git a/src/msg/async/Event.cc b/src/msg/async/Event.cc
index 2cb9c1daf0fff2ed00b7d0357b85cebe06ee0b34..99a90c50237dd14904447a50740ad42a64358e71 100644 (file)
--- a/src/msg/async/Event.cc
+++ b/src/msg/async/Event.cc
@@ -315,7 +315,7 @@ int EventCenter::process_events(int timeout_microseconds)
       shortest = it->first;
       trigger_time = true;
       if (shortest > now) {
-        period = now - shortest;
+        period = shortest - now;
         period.copy_to_timeval(&tv);
       } else {
         tv.tv_sec = 0;