mirror of https://github.com/aria2/aria2
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
/* <!-- copyright */
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/*
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* aria2 - The high speed download utility
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*
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* Copyright (C) 2006 Tatsuhiro Tsujikawa
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* In addition, as a special exception, the copyright holders give
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* permission to link the code of portions of this program with the
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* OpenSSL library under certain conditions as described in each
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* individual source file, and distribute linked combinations
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* including the two.
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* You must obey the GNU General Public License in all respects
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* for all of the code used other than OpenSSL. If you modify
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* file(s) with this exception, you may extend this exception to your
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* version of the file(s), but you are not obligated to do so. If you
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* do not wish to do so, delete this exception statement from your
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* version. If you delete this exception statement from all source
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* files in the program, then also delete it here.
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*/
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/* copyright --> */
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#include "TorrentDownloadEngine.h"
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#include "Util.h"
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#include "BtRegistry.h"
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TorrentDownloadEngine::TorrentDownloadEngine():
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filenameFixed(false),
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btContext(0),
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btRuntime(0),
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pieceStorage(0),
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peerStorage(0),
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btAnnounce(0),
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btProgressInfoFile(0) {}
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TorrentDownloadEngine::~TorrentDownloadEngine() {
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}
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void TorrentDownloadEngine::setBtContext(const BtContextHandle& btContext) {
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this->btContext = btContext;
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btRuntime = BT_RUNTIME(btContext);
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pieceStorage = PIECE_STORAGE(btContext);
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peerStorage = PEER_STORAGE(btContext);
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btAnnounce = BT_ANNOUNCE(btContext);
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btProgressInfoFile = BT_PROGRESS_INFO_FILE(btContext);
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}
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void TorrentDownloadEngine::onEndOfRun() {
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pieceStorage->getDiskAdaptor()->closeFile();
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if(pieceStorage->allDownloadFinished()) {
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btProgressInfoFile->removeFile();
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} else {
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btProgressInfoFile->save();
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}
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}
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void TorrentDownloadEngine::initStatistics() {
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downloadSpeed = 0;
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uploadSpeed = 0;
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cp.reset();
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startup.reset();
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eta = 0;
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avgSpeed = 0;
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downloadLength = 0;
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uploadLength = 0;
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totalLength = 0;
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}
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int TorrentDownloadEngine::calculateSpeed(long long int length, int elapsed) {
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int nowSpeed = (int)(length/elapsed);
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return nowSpeed;
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}
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void TorrentDownloadEngine::calculateStat() {
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TransferStat stat = peerStorage->calculateStat();
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if(pieceStorage->isSelectiveDownloadingMode()) {
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downloadLength = pieceStorage->getFilteredCompletedLength();
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totalLength = pieceStorage->getFilteredTotalLength();
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} else {
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downloadLength = pieceStorage->getCompletedLength();
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totalLength = pieceStorage->getTotalLength();
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}
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uploadLength = stat.getSessionUploadLength()+
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btRuntime->getUploadLengthAtStartup();
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downloadSpeed = stat.getDownloadSpeed();
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uploadSpeed = stat.getUploadSpeed();
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avgSpeed = calculateSpeed(stat.getSessionDownloadLength(),
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startup.difference());
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if(avgSpeed < 0) {
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avgSpeed = 0;
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} else if(avgSpeed != 0) {
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eta = (totalLength-downloadLength)/avgSpeed;
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}
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}
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void TorrentDownloadEngine::calculateStatistics() {
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if(cp.difference() >= 1) {
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calculateStat();
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sendStatistics();
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cp.reset();
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}
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}
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