timeoutmanager.h

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// ========================================================
// Event time-out handler
//
// Design and Implementation by Floris van den Berg
// ========================================================

#ifndef TIMEOUTMANAGER_H
#define TIMEOUTMANAGER_H

#ifndef BOOST_THREAD_WEK070601_HPP
#include <boost/thread/thread.hpp>
#endif

// --------------------------------------------------------

struct TimeOutEvent;
struct ITransport;
class Event;
class TimeOutManager;

// --------------------------------------------------------

typedef _STL::list<TimeOutEvent> TimeOutList;

// --------------------------------------------------------

struct TimeOutEvent {
	ITransport *m_plug;
	GUID m_protocol;
	int m_msg;
	unsigned int m_timeout;
	unsigned int m_start_time;

	TimeOutEvent() :
	m_plug(0),
	m_protocol(CLSID_NULL_PROTOCOL),
	m_msg(0),
	m_timeout(0),
	m_start_time(0) {
	}
};

// --------------------------------------------------------

struct TimeOutFunctor {
public :
	TimeOutFunctor(TimeOutManager *timeout);
	void operator()();
	bool iterate();

private :
	TimeOutManager *m_manager;
};

// --------------------------------------------------------

class TimeOutManager {
	friend struct TimeOutFunctor;

public :
	void addItem(ITransport *plug, EpAction *action);
	bool removeItem(ITransport *plug, GUID protocol, int msg);
	bool removeItems();
	bool removeItems(ITransport *plug);
	bool removeItems(ITransport *plug, GUID protocol);
	bool timeOutsQueued();
	~TimeOutManager();

public :
	static TimeOutManager *getInstance();
	static bool isInstantiated();
	static void destroyInstance();

private :
	TimeOutManager();

private :
	static TimeOutManager *instance;

private :
	boost::thread *m_thread;
	bool m_thread_running;
	boost::mutex m_cs;
	TimeOutList m_queue;

};

#endif