From 65a2390a852714bb69794301f3c44d108c100fab Mon Sep 17 00:00:00 2001
From: Donghee Ye <donghee.ye@samsung.com>
Date: Fri, 16 Nov 2018 19:25:37 +0900
Subject: [PATCH] Fix guard condition trigger error

---
 rmw_fastrtps_shared_cpp/src/types/guard_condition.hpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/rmw_fastrtps_shared_cpp/src/types/guard_condition.hpp b/rmw_fastrtps_shared_cpp/src/types/guard_condition.hpp
index b4a08cda1..6f0ab0299 100644
--- a/rmw_fastrtps_shared_cpp/src/types/guard_condition.hpp
+++ b/rmw_fastrtps_shared_cpp/src/types/guard_condition.hpp
@@ -72,6 +72,7 @@ class GuardCondition
   bool
   getHasTriggered()
   {
+    std::lock_guard<std::mutex> lock(internalMutex_);
     bool ret = hasTriggered_;
     hasTriggered_ = false;
     return ret;