Fix Data Race when updating liveliness changed in WLP (#3926) (#3961)

* Refs #19702: Fix Data Race in WLP Signed-off-by: Mario Dominguez <mariodominguez@eprosima.com> * Refs #19702: reviewer suggestion Signed-off-by: Mario Dominguez <mariodominguez@eprosima.com> --------- Signed-off-by: Mario Dominguez <mariodominguez@eprosima.com> (cherry picked from commit 8126a51) Co-authored-by: Mario Domínguez López <116071334+Mario-DL@users.noreply.github.com>
eProsima · Nov 13, 2023 · 26dafe7 · 26dafe7
1 parent 3c0d443
commit 26dafe7
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
@@ -1079,6 +1079,8 @@ 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;