logic: fixed crash when calling message listeners that already have been destroyed

* prevented lambda created by MessageQueue::sendMessageAsTask to call functions on message listeners that already have been destroyed.

src/lib/utility/messaging/MessageQueue.cpp

@@ -53,6 +53,19 @@ void MessageQueue::unregisterListener(MessageListenerBase* listener)
 	LOG_ERROR("Listener was not found");
 }
 
+MessageListenerBase* MessageQueue::getListenerById(const uint id) const
+{
+	std::lock_guard<std::mutex> lock(m_listenersMutex);
+	for (size_t i = 0; i < m_listeners.size(); i++)
+	{
+		if (m_listeners[i]->getId() == id)
+		{
+			return m_listeners[i];
+		}
+	}
+	return nullptr;
+}
+
 void MessageQueue::pushMessage(std::shared_ptr<MessageBase> message)
 {
 	std::lock_guard<std::mutex> lock(m_backMessageBufferMutex);
@@ -240,10 +253,15 @@ void MessageQueue::sendMessageAsTask(std::shared_ptr<MessageBase> message, bool
 
 		if (listener->getType() == message->getType())
 		{
+			uint listenerId = listener->getId();
 			taskGroup->addTask(std::make_shared<LambdaTask>(
-				[listener, message]()
+				[listenerId, message]()
 				{
-					listener->handleMessageBase(message.get());
+					MessageListenerBase* listener = MessageQueue::getInstance()->getListenerById(listenerId);
+					if (listener)
+					{
+						listener->handleMessageBase(message.get());
+					}
 				}
 			));
 		}