Fix Data Race when updating liveliness changed in WLP (#3926)

* Refs #19702: Fix Data Race in WLP Signed-off-by: Mario Dominguez <[email protected]> * Refs #19702: reviewer suggestion Signed-off-by: Mario Dominguez <[email protected]> --------- Signed-off-by: Mario Dominguez <[email protected]> (cherry picked from commit 8126a51)
eProsima · Oct 26, 2023 · c99aa39 · c99aa39
1 parent 8d1e611
commit c99aa39
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/src/cpp/rtps/builtin/liveliness/WLP.cpp b/src/cpp/rtps/builtin/liveliness/WLP.cpp
@@ -1089,6 +1089,8 @@ void WLP::update_liveliness_changed_status(
         int32_t alive_change,
         int32_t not_alive_change)
 {
+    std::lock_guard<RecursiveTimedMutex> lock(reader->getMutex());
+
     reader->liveliness_changed_status_.alive_count += alive_change;
     reader->liveliness_changed_status_.alive_count_change += alive_change;
     reader->liveliness_changed_status_.not_alive_count += not_alive_change;