From b009754d1bc09d9cb26b35e41146029491044b6d Mon Sep 17 00:00:00 2001
From: LaG1924 <12997935+LaG1924@users.noreply.github.com>
Date: Fri, 12 Jan 2018 16:48:42 +0500
Subject: Added more mutexes -> It's working fine now

---
 src/Event.cpp | 34 ++++++++++++++++++++++------------
 src/Event.hpp | 32 +++++++++++++++-----------------
 2 files changed, 37 insertions(+), 29 deletions(-)

diff --git a/src/Event.cpp b/src/Event.cpp
index 7604609..08c9ee7 100644
--- a/src/Event.cpp
+++ b/src/Event.cpp
@@ -17,9 +17,10 @@ void EventListener::HandleEvent() {
 	if (!NotEmpty())
 		return;
 
-	std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
+	std::lock_guard<std::recursive_mutex> eventsLock (eventsMutex);
 	Event event = events.front();
-	events.pop();	
+	events.pop();
+	std::lock_guard<std::recursive_mutex> handlersLock (handlersMutex);
 	if (handlers[event.id]) {
 		handlers[event.id](event);
 	}
@@ -29,7 +30,8 @@ void EventListener::HandleAllEvents() {
     if (!NotEmpty())
         return;
 
-	std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
+	std::lock_guard<std::recursive_mutex> eventsLock (eventsMutex);
+    std::lock_guard<std::recursive_mutex> handlersLock (handlersMutex);
 	while (!events.empty()) {
 		Event event = events.front();
 		events.pop();
@@ -40,19 +42,27 @@ void EventListener::HandleAllEvents() {
 }
 
 bool EventListener::NotEmpty() {
+    PollEvents();
+	std::lock_guard<std::recursive_mutex> eventsLock (eventsMutex);
 	bool ret = !events.empty();
 	return ret;
 }
 
-void EventListener::WaitEvent() {
-	std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
-	while (events.empty()) {
-		mutex.unlock();
-		mutex.lock();
-	}
-}
-
 void EventListener::RegisterHandler(size_t eventId, const EventListener::HandlerType &data) {
-	std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
+	std::lock_guard<std::recursive_mutex> handlersLock (handlersMutex);
 	handlers[eventId] = data;
 }
+
+void EventListener::PollEvents() {
+    std::lock_guard<std::recursive_mutex> rawLock (rawEventsMutex);
+    if (rawEvents.empty())
+        return;
+    std::lock_guard<std::recursive_mutex> eventsLock (eventsMutex);
+    std::lock_guard<std::recursive_mutex> handlersLock (handlersMutex);
+    while (!rawEvents.empty()) {
+        Event event = rawEvents.front();
+        rawEvents.pop();
+        if (handlers[event.id])
+            events.push(event);
+    }
+}
diff --git a/src/Event.hpp b/src/Event.hpp
index 0f60d1a..4cdcdc3 100644
--- a/src/Event.hpp
+++ b/src/Event.hpp
@@ -63,9 +63,12 @@ public:
 class EventListener {
 	friend class EventSystem;
 	using HandlerType = std::function<void(const Event&)>;
-	std::queue<Event> events;
 	std::map<size_t, HandlerType> handlers;
-	std::recursive_mutex mutex;
+	std::recursive_mutex handlersMutex;
+	std::queue<Event> events;
+	std::recursive_mutex eventsMutex;
+	std::queue<Event> rawEvents;
+	std::recursive_mutex rawEventsMutex;
 public:
 	EventListener();
 
@@ -77,13 +80,13 @@ public:
 
 	bool NotEmpty();
 
-	void WaitEvent();
-
 	void RegisterHandler(size_t eventId, const HandlerType &data);
 
 	void RegisterHandler(const char *eventId, const HandlerType & data) {
 		RegisterHandler(StrHash(eventId), data);
 	}
+
+	void PollEvents();
 };
 
 class EventSystem {
@@ -96,33 +99,28 @@ public:
 	static void PushEvent(size_t eventId, T data) {
 		Event event(eventId, data);
 
+		std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
 		for (auto& listener : listeners) {
-			std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
-
-			auto it = listener->handlers.find(eventId);
-			if (it == listener->handlers.end())
-				continue;
-
-			listener->events.push(event);
+			std::lock_guard<std::recursive_mutex> rawEventLock (listener->rawEventsMutex);
+			listener->rawEvents.push(event);
 		}
 	}
 
 	template <typename T>
 	static void DirectEventCall(size_t eventId, T data) {
 		Event event(eventId, data);
-
+		std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
 		for (auto & listener : listeners) {
-			std::lock_guard<std::recursive_mutex> lock(EventSystem::listenersMutex);
-
+			std::lock_guard<std::recursive_mutex> handlersLock (listener->handlersMutex);
 			auto it = listener->handlers.find(eventId);
 			if (it == listener->handlers.end())
-				continue;			
+				continue;
 
 			it->second(event);
 		}
 	}
 };
 
-#define PUSH_EVENT(eventName, data) EventSystem::PushEvent(StrHash(eventName),data); LOG(INFO)<<"PUSH_EVENT "<<eventName;
+#define PUSH_EVENT(eventName, data) EventSystem::PushEvent(StrHash(eventName),data) //; LOG(INFO)<<"PUSH_EVENT "<<eventName;
 
-#define DIRECT_EVENT_CALL(eventName,data) EventSystem::DirectEventCall(StrHash(eventName),data); LOG(INFO)<<"DIRECT_CALL "<<eventName;
\ No newline at end of file
+#define DIRECT_EVENT_CALL(eventName,data) EventSystem::DirectEventCall(StrHash(eventName),data) //; LOG(INFO)<<"DIRECT_CALL "<<eventName;
\ No newline at end of file
-- 
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