From b1b65d3575f3843dfb564e9e75f521b58054b0c2 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Michal=20Voc=C5=AF?= <michal@ruk.cuni.cz>
Date: Wed, 20 Jun 2007 09:00:17 +0000
Subject: [PATCH] experimental stuff

---
 org.glite.lb.logger/src-nt/EventManager.H | 84 ++++++++++++++++++-------------
 1 file changed, 49 insertions(+), 35 deletions(-)

diff --git a/org.glite.lb.logger/src-nt/EventManager.H b/org.glite.lb.logger/src-nt/EventManager.H
index 1fa4cab..2a12b7a 100644
--- a/org.glite.lb.logger/src-nt/EventManager.H
+++ b/org.glite.lb.logger/src-nt/EventManager.H
@@ -1,59 +1,73 @@
 #ifndef _EVENT_MANAGER_H
 #define _EVENT_MANAGER_H
 
+#include <list>
 
-class EventManager {
+#include "Singleton.H"
+
+// interface
+
+// type for return code of event handler
+typedef enum {
+	NOT_HANDLED,  // the event was not handled at all
+	HANDLED,      // the event was handled succesfully
+	HANDLED_FINAL // the event was handled, 
+	// no other handlers should be called
+} eventstatus_t;
+
+
+class Event {
+};
+
+
+template<class T>
+class EventHandler {
 public:
-	// type for return code of event handler
-	typedef enum {
-		NOT_HANDLED,  // the event was not handled at all
-		HANDLED,      // the event was handled succesfully
-		HANDLED_FINAL // the event was handled, 
-		// no other handlers should be called
-	} eventstatus_t;
+	virtual eventstatus_t handleEvent(T *&e);
+};
 
-	
-	static EventManager* getEventManager() { return &theEventManager; };
 
-	class Event {
-	public:
-	};
+template <class T>
+class EventManagerForType: public Singleton< EventManagerForType<T> > {
+public:
 
-	template<class T>
-	class EventHandler {
-	public:
+protected:
+	void registerHandler(EventHandler<T> *);
+	void registerHandlerFirst(EventHandler<T> *);
 
-		virtual eventstatus_t handleEvent(T *&e);
+private:
 
-		eventstatus_t dispatchEvent(Event *&e) {
-			T *event = dynamic_cast<T*>(e);
-			
-			if(event) 
-				return(handleEvent(event));
-			else
-				return(NOT_HANDLED);
-		}
-	};
+};
 
 
-	void postEvent(Event &);
+class EventManager: public Singleton<EventManager> {
+public:
+	eventstatus_t postEvent(Event *);
 
 	template<class T>
-	bool registerHandler(EventHandler<T> *);
+	void registerHandler(EventHandler<T> *h) {
+		EventManagerForType<T>::instance()->registerHandler(h);
+	}
 
 	template<class T>
-	bool registerHandlerFirst(EventHandler<T> *);
+	void registerHandlerFirst(EventHandler<T> *) {
+		EventManagerForType<T>::instance()->registerHandlerFirst(h);
+	}
+
+protected:
+	EventManager() 
+		{}
+
+	virtual ~EventManager()
+		{}
 
 private:
 	
-	// the event manager
-	static EventManager theEventManager;
+};
+
 
-	// private default constructor for singleton instance
-	EventManager() 
-		{};
 
-};
 
+// implementation
 
 #endif
-- 
1.8.2.3