mirror of
https://github.com/aria2/aria2.git
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329 lines
9.8 KiB
C++
329 lines
9.8 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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#ifndef D_DEFAULT_PIECE_STORAGE_H
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#define D_DEFAULT_PIECE_STORAGE_H
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#include "PieceStorage.h"
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#include <deque>
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#include <set>
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#include "a2functional.h"
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namespace aria2 {
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class DownloadContext;
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class BitfieldMan;
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class Option;
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class DiskWriterFactory;
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class FileEntry;
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class PieceStatMan;
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class PieceSelector;
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class StreamPieceSelector;
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#define END_GAME_PIECE_NUM 20
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class HaveEntry {
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private:
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cuid_t cuid_;
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size_t index_;
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Timer registeredTime_;
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public:
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HaveEntry(cuid_t cuid, size_t index, const Timer& registeredTime):
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cuid_(cuid),
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index_(index),
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registeredTime_(registeredTime) {}
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cuid_t getCuid() const { return cuid_; }
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size_t getIndex() const { return index_; }
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const Timer& getRegisteredTime() const { return registeredTime_; }
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};
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class DefaultPieceStorage : public PieceStorage {
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private:
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std::shared_ptr<DownloadContext> downloadContext_;
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std::unique_ptr<BitfieldMan> bitfieldMan_;
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std::shared_ptr<DiskAdaptor> diskAdaptor_;
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std::shared_ptr<DiskWriterFactory> diskWriterFactory_;
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typedef std::set<std::shared_ptr<Piece>,
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DerefLess<std::shared_ptr<Piece> > > UsedPieceSet;
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UsedPieceSet usedPieces_;
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bool endGame_;
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size_t endGamePieceNum_;
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const Option* option_;
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std::deque<HaveEntry> haves_;
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std::shared_ptr<PieceStatMan> pieceStatMan_;
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std::unique_ptr<PieceSelector> pieceSelector_;
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std::unique_ptr<StreamPieceSelector> streamPieceSelector_;
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WrDiskCache* wrDiskCache_;
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#ifdef ENABLE_BITTORRENT
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void getMissingPiece
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(std::vector<std::shared_ptr<Piece> >& pieces,
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size_t minMissingBlocks,
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const unsigned char* bitfield,
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size_t length,
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cuid_t cuid);
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void createFastIndexBitfield(BitfieldMan& bitfield,
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const std::shared_ptr<Peer>& peer);
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#endif // ENABLE_BITTORRENT
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std::shared_ptr<Piece> checkOutPiece(size_t index, cuid_t cuid);
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// size_t deleteUsedPiecesByFillRate(int fillRate, size_t toDelete);
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// void reduceUsedPieces(size_t upperBound);
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void deleteUsedPiece(const std::shared_ptr<Piece>& piece);
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std::shared_ptr<Piece> findUsedPiece(size_t index) const;
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// Returns the sum of completed length of in-flight pieces
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int64_t getInFlightPieceCompletedLength() const;
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// Returns the sum of completed length of in-flight pieces
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// intersecting filter ranges.
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int64_t getInFlightPieceFilteredCompletedLength() const;
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public:
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// Setting randomPieceStatsOrdering to true means a piece is chosen in
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// random when more than 2 pieces has the same rarity.
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// If it is set to false, a piece whose index is smallest has the highest
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// priority.
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DefaultPieceStorage(const std::shared_ptr<DownloadContext>& downloadContext,
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const Option* option);
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virtual ~DefaultPieceStorage();
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#ifdef ENABLE_BITTORRENT
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virtual bool hasMissingPiece(const std::shared_ptr<Peer>& peer)
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CXX11_OVERRIDE;
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virtual void getMissingPiece
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(std::vector<std::shared_ptr<Piece> >& pieces,
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size_t minMissingBlocks,
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const std::shared_ptr<Peer>& peer,
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cuid_t cuid) CXX11_OVERRIDE;
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virtual void getMissingPiece
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(std::vector<std::shared_ptr<Piece> >& pieces,
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size_t minMissingBlocks,
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const std::shared_ptr<Peer>& peer,
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const std::vector<size_t>& excludedIndexes,
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cuid_t cuid) CXX11_OVERRIDE;
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virtual void getMissingFastPiece
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(std::vector<std::shared_ptr<Piece> >& pieces,
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size_t minMissingBlocks,
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const std::shared_ptr<Peer>& peer,
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cuid_t cuid) CXX11_OVERRIDE;
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virtual void getMissingFastPiece
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(std::vector<std::shared_ptr<Piece> >& pieces,
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size_t minMissingBlocks,
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const std::shared_ptr<Peer>& peer,
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const std::vector<size_t>& excludedIndexes,
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cuid_t cuid) CXX11_OVERRIDE;
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virtual std::shared_ptr<Piece> getMissingPiece
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(const std::shared_ptr<Peer>& peer,
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cuid_t cuid) CXX11_OVERRIDE;
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virtual std::shared_ptr<Piece> getMissingPiece
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(const std::shared_ptr<Peer>& peer,
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const std::vector<size_t>& excludedIndexes,
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cuid_t cuid) CXX11_OVERRIDE;
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std::shared_ptr<Piece> getMissingFastPiece
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(const std::shared_ptr<Peer>& peer,
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cuid_t cuid);
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std::shared_ptr<Piece> getMissingFastPiece
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(const std::shared_ptr<Peer>& peer,
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const std::vector<size_t>& excludedIndexes,
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cuid_t cuid);
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#endif // ENABLE_BITTORRENT
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virtual bool hasMissingUnusedPiece() CXX11_OVERRIDE;
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virtual std::shared_ptr<Piece> getMissingPiece
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(size_t minSplitSize,
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const unsigned char* ignoreBitfield,
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size_t length,
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cuid_t cuid) CXX11_OVERRIDE;
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virtual std::shared_ptr<Piece> getMissingPiece(size_t index, cuid_t cuid)
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CXX11_OVERRIDE;
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virtual std::shared_ptr<Piece> getPiece(size_t index) CXX11_OVERRIDE;
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virtual void completePiece(const std::shared_ptr<Piece>& piece)
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CXX11_OVERRIDE;
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virtual void cancelPiece(const std::shared_ptr<Piece>& piece, cuid_t cuid)
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CXX11_OVERRIDE;
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virtual bool hasPiece(size_t index) CXX11_OVERRIDE;
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virtual bool isPieceUsed(size_t index) CXX11_OVERRIDE;
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virtual int64_t getTotalLength() CXX11_OVERRIDE;
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virtual int64_t getFilteredTotalLength() CXX11_OVERRIDE;
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virtual int64_t getCompletedLength() CXX11_OVERRIDE;
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virtual int64_t getFilteredCompletedLength() CXX11_OVERRIDE;
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virtual void initStorage() CXX11_OVERRIDE;
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virtual void setupFileFilter() CXX11_OVERRIDE;
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virtual void clearFileFilter() CXX11_OVERRIDE;
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virtual bool downloadFinished() CXX11_OVERRIDE;
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virtual bool allDownloadFinished() CXX11_OVERRIDE;
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virtual void setBitfield(const unsigned char* bitfield,
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size_t bitfieldLength) CXX11_OVERRIDE;
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virtual size_t getBitfieldLength() CXX11_OVERRIDE;
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virtual const unsigned char* getBitfield() CXX11_OVERRIDE;
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virtual void setEndGamePieceNum(size_t num) CXX11_OVERRIDE
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{
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endGamePieceNum_ = num;
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}
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size_t getEndGamePieceNum() const {
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return endGamePieceNum_;
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}
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virtual bool isSelectiveDownloadingMode() CXX11_OVERRIDE;
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virtual bool isEndGame() CXX11_OVERRIDE
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{
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return endGame_;
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}
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virtual void enterEndGame() CXX11_OVERRIDE
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{
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endGame_ = true;
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}
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virtual std::shared_ptr<DiskAdaptor> getDiskAdaptor() CXX11_OVERRIDE;
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virtual WrDiskCache* getWrDiskCache() CXX11_OVERRIDE;
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virtual void flushWrDiskCacheEntry() CXX11_OVERRIDE;
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virtual int32_t getPieceLength(size_t index) CXX11_OVERRIDE;
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virtual void advertisePiece(cuid_t cuid, size_t index) CXX11_OVERRIDE;
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virtual void
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getAdvertisedPieceIndexes(std::vector<size_t>& indexes,
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cuid_t myCuid, const Timer& lastCheckTime)
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CXX11_OVERRIDE;
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virtual void removeAdvertisedPiece(time_t elapsed) CXX11_OVERRIDE;
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virtual void markAllPiecesDone() CXX11_OVERRIDE;
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virtual void markPiecesDone(int64_t length) CXX11_OVERRIDE;
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virtual void markPieceMissing(size_t index) CXX11_OVERRIDE;
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virtual void addInFlightPiece
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(const std::vector<std::shared_ptr<Piece> >& pieces) CXX11_OVERRIDE;
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virtual size_t countInFlightPiece() CXX11_OVERRIDE;
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virtual void getInFlightPieces
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(std::vector<std::shared_ptr<Piece> >& pieces) CXX11_OVERRIDE;
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virtual void addPieceStats(size_t index) CXX11_OVERRIDE;
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virtual void addPieceStats(const unsigned char* bitfield,
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size_t bitfieldLength) CXX11_OVERRIDE;
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virtual void subtractPieceStats(const unsigned char* bitfield,
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size_t bitfieldLength) CXX11_OVERRIDE;
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virtual void updatePieceStats(const unsigned char* newBitfield,
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size_t newBitfieldLength,
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const unsigned char* oldBitfield)
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CXX11_OVERRIDE;
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virtual size_t getNextUsedIndex(size_t index) CXX11_OVERRIDE;
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virtual void onDownloadIncomplete() CXX11_OVERRIDE;
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/**
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* This method is made private for test purpose only.
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*/
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void addUsedPiece(const std::shared_ptr<Piece>& piece);
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void setDiskWriterFactory
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(const std::shared_ptr<DiskWriterFactory>& diskWriterFactory);
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const std::shared_ptr<PieceStatMan>& getPieceStatMan() const
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{
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return pieceStatMan_;
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}
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void setPieceSelector(std::unique_ptr<PieceSelector> pieceSelector);
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const std::unique_ptr<PieceSelector>& getPieceSelector() const
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{
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return pieceSelector_;
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}
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std::unique_ptr<PieceSelector> popPieceSelector();
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void setWrDiskCache(WrDiskCache* wrDiskCache)
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{
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wrDiskCache_ = wrDiskCache;
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}
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};
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} // namespace aria2
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#endif // D_DEFAULT_PIECE_STORAGE_H
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