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/* <!-- copyright */
/*
* aria2 - a simple utility for downloading files faster
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
/* copyright --> */
#ifndef _D_TORRENT_DOWNLOAD_ENGINE_H_
#define _D_TORRENT_DOWNLOAD_ENGINE_H_
#include "DownloadEngine.h"
#include "TorrentMan.h"
#include "TimeA2.h"
class TorrentDownloadEngine : public DownloadEngine {
private:
bool filenameFixed;
void initStatistics();
void calculateStatistics();
protected:
Time cp[2];
long long int sessionDownloadLengthArray[2];
long long int sessionUploadLengthArray[2];
int currentCp;
int downloadSpeed;
int uploadSpeed;
int lastElapsed;
long long int selectedDownloadLengthDiff;
long long int selectedTotalLength;
// The time when startup
Time startup;
// The number of bytes downloaded since startup
long long int sessionDownloadLength;
// The average speed(bytes per second) since startup
int avgSpeed;
// The estimated remaining time to complete the download.
int eta;
long long int downloadLength;
long long int totalLength;
int calculateSpeed(long long int sessionLength, int elapsed);
void onEndOfRun();
void afterEachIteration();
virtual void onSelectiveDownloadingCompletes() = 0;
virtual void sendStatistics() = 0;
public:
TorrentDownloadEngine();
virtual ~TorrentDownloadEngine();
TorrentMan* torrentMan;
bool isFilenameFixed() const { return filenameFixed; }
// returns uploading speed in byte/sec.
int getUploadSpeed() const { return uploadSpeed; }
int getDownloadSpeed() const { return downloadSpeed; }
};
#endif // _D_TORRENT_DOWNLOAD_ENGINE_H_
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