Server is multithreaded, but no connection is visible

UDPNetworkUtility and ConfigUtility are now using the ServiceLocator
pattern in the server, and networkQueue() is running in a separate thread
in the server. However, there seems to be a problem somewhere, since the
broadcast request & response are not producing any visible output.

client/lobby.cpp

@@ -26,9 +26,7 @@ Lobby::Lobby() {
 	serverList.push_back({"bar",{0,0}});
 	serverList.push_back({"foobar",{0,0}});
 
-	queueThread = SDL_CreateThread(networkQueue, nullptr);
-
-	if (!queueThread) {
+	if (!(queueThread = SDL_CreateThread(networkQueue, nullptr))) {
 		throw(runtime_error("Failed to create the network thread"));
 	}
 

client/lobby.hpp

@@ -62,6 +62,7 @@ protected:
 	std::vector<ServerEntry> serverList;
 	ServerEntry* selectedServer = nullptr;
 
+	//threads
 	SDL_Thread* queueThread = nullptr;
 };
 

client/scene_manager.cpp

@@ -145,7 +145,10 @@ void SceneManager::Quit() {
 	surfaceMgr = ServiceLocator<SurfaceManager>::Set(nullptr);
 	netUtil = ServiceLocator<UDPNetworkUtility>::Set(nullptr);
 
+	//clean up the scene
 	UnloadScene();
+
+	//deinitialize the APIs
 	SDLNet_Quit();
 	SDL_Quit();
 }