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/***************************************************************************
 *   Copyright (C) 2005 by Joris Guisson                                   *
 *   joris.guisson@gmail.com                                               *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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 General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.             *
 ***************************************************************************/
#ifndef BTSPEEDESTIMATER_H
#define BTSPEEDESTIMATER_H


#include "globals.h"

namespace bt
{

	/**
	 * @author Joris Guisson
	 * @brief Estimates download speed
	 *
	 * This class estimates the download speed.
	*/
	class SpeedEstimater
	{
		class SpeedEstimaterPriv;
	public:
		SpeedEstimater();
		virtual ~SpeedEstimater();


		void onRead(Uint32 bytes);
		void update();
		
		double downloadRate() const {return download_rate;}
		
	private:
		double download_rate;
		SpeedEstimaterPriv* down;
	};

}

#endif