// ============================================================================
//  Copyright (C) 2001-2013 by Jozef Starosczyk
//  ixen@copyhandler.com
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU Library General Public License
//  (version 2) as published by the Free Software Foundation;
//
//  This program 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.
//
//  You should have received a copy of the GNU Library General Public
//  License along with this program; if not, write to the
//  Free Software Foundation, Inc.,
//  59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
// ============================================================================
#ifndef __TSIMPLETIMER_H__
#define __TSIMPLETIMER_H__

#include "libchcore.h"
#include "ITimestampProvider.h"

BEGIN_CHCORE_NAMESPACE

class TSimpleTimer
{
public:
	TSimpleTimer(bool bAutostart = false, const ITimestampProviderPtr& spTimestampProvider = ITimestampProviderPtr());
	~TSimpleTimer();

	void Init(unsigned long long ullTotalTime);

	void Start();
	unsigned long long Stop();		// returns total time
	unsigned long long Tick();		// returns current timestamp

	void Reset();

	bool IsRunning() const;
	unsigned long long GetTotalTime() const { return m_ullTotalTime; }
	unsigned long long GetLastTimestamp() const { return m_ullLastTime; }

private:
	ITimestampProviderPtr m_spTimestampProvider;

	bool m_bStarted;
	unsigned long long m_ullTotalTime;		// total time measured
	unsigned long long m_ullLastTime;		// last processed time
};

END_CHCORE_NAMESPACE

#endif