Fix Data Race when updating liveliness changed in WLP (#3926) (#3959)

* 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) Co-authored-by: Mario Domínguez López <[email protected]>
eProsima · Nov 13, 2023 · 0a9447f · 0a9447f
1 parent 4ab9cc5
commit 0a9447f
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;