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/*
* synergy -- mouse and keyboard sharing utility
* Copyright (C) 2004 Chris Schoeneman
*
* This package is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* found in the file COPYING that should have accompanied this file.
*
* This package is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#ifndef CEVENTQUEUE_H
#define CEVENTQUEUE_H
#include "IEventQueue.h"
#include "CEvent.h"
#include "CPriorityQueue.h"
#include "CStopwatch.h"
#include "IArchMultithread.h"
#include "stdmap.h"
#include "stdset.h"
//! Event queue
/*!
An event queue that implements the platform independent parts and
delegates the platform dependent parts to a subclass.
*/
class CEventQueue : public IEventQueue {
public:
CEventQueue();
virtual ~CEventQueue();
// IEventQueue overrides
virtual void adoptBuffer(IEventQueueBuffer*);
virtual bool getEvent(CEvent& event, double timeout = -1.0);
virtual bool dispatchEvent(const CEvent& event);
virtual void addEvent(const CEvent& event);
virtual CEventQueueTimer*
newTimer(double duration, void* target);
virtual CEventQueueTimer*
newOneShotTimer(double duration, void* target);
virtual void deleteTimer(CEventQueueTimer*);
virtual void adoptHandler(CEvent::Type type,
void* target, IEventJob* handler);
virtual void removeHandler(CEvent::Type type, void* target);
virtual void removeHandlers(void* target);
virtual CEvent::Type
registerType(const char* name);
virtual CEvent::Type
registerTypeOnce(CEvent::Type& type, const char* name);
virtual bool isEmpty() const;
virtual IEventJob* getHandler(CEvent::Type type, void* target) const;
virtual const char* getTypeName(CEvent::Type type);
private:
UInt32 saveEvent(const CEvent& event);
CEvent removeEvent(UInt32 eventID);
bool hasTimerExpired(CEvent& event);
double getNextTimerTimeout() const;
private:
class CTimer {
public:
CTimer(CEventQueueTimer*, double timeout, double initialTime,
void* target, bool oneShot);
~CTimer();
void reset();
CTimer& operator-=(double);
operator double() const;
bool isOneShot() const;
CEventQueueTimer*
getTimer() const;
void* getTarget() const;
void fillEvent(CTimerEvent&) const;
bool operator<(const CTimer&) const;
private:
CEventQueueTimer* m_timer;
double m_timeout;
void* m_target;
bool m_oneShot;
double m_time;
};
typedef std::set<CEventQueueTimer*> CTimers;
typedef CPriorityQueue<CTimer> CTimerQueue;
typedef std::map<UInt32, CEvent> CEventTable;
typedef std::vector<UInt32> CEventIDList;
typedef std::map<CEvent::Type, const char*> CTypeMap;
typedef std::map<CEvent::Type, IEventJob*> CTypeHandlerTable;
typedef std::map<void*, CTypeHandlerTable> CHandlerTable;
CArchMutex m_mutex;
// registered events
CEvent::Type m_nextType;
CTypeMap m_typeMap;
// buffer of events
IEventQueueBuffer* m_buffer;
// saved events
CEventTable m_events;
CEventIDList m_oldEventIDs;
// timers
CStopwatch m_time;
CTimers m_timers;
CTimerQueue m_timerQueue;
CTimerEvent m_timerEvent;
// event handlers
CHandlerTable m_handlers;
};
#endif
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