mirror of https://github.com/aria2/aria2
132 lines
3.6 KiB
C++
132 lines
3.6 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 "PiecedSegment.h"
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#include "Piece.h"
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#include <cassert>
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namespace aria2 {
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PiecedSegment::PiecedSegment(size_t pieceLength, const PieceHandle& piece):
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_pieceLength(pieceLength), _overflowLength(0), _piece(piece)
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{
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size_t index;
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bool t = _piece->getFirstMissingBlockIndexWithoutLock(index);
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assert(t);
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_writtenLength = index*_piece->getBlockLength();
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}
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PiecedSegment::~PiecedSegment() {}
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bool PiecedSegment::complete() const
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{
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return _piece->pieceComplete();
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}
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size_t PiecedSegment::getIndex() const
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{
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return _piece->getIndex();
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}
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off_t PiecedSegment::getPosition() const
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{
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return ((off_t)_piece->getIndex())*_pieceLength;
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}
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off_t PiecedSegment::getPositionToWrite() const
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{
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return getPosition()+_writtenLength;
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}
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size_t PiecedSegment::getLength() const
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{
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return _piece->getLength();
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}
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void PiecedSegment::updateWrittenLength(size_t bytes)
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{
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size_t newWrittenLength = _writtenLength+bytes;
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if(newWrittenLength > _piece->getLength()) {
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_overflowLength = newWrittenLength-_piece->getLength();
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newWrittenLength = _piece->getLength();
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}
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for(size_t i = _writtenLength/_piece->getBlockLength(); i < newWrittenLength/_piece->getBlockLength(); ++i) {
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_piece->completeBlock(i);
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}
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if(newWrittenLength == _piece->getLength()) {
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_piece->completeBlock(_piece->countBlock()-1);
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}
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_writtenLength = newWrittenLength;
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}
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#ifdef ENABLE_MESSAGE_DIGEST
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bool PiecedSegment::updateHash(uint32_t begin,
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const unsigned char* data, size_t dataLength)
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{
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return _piece->updateHash(begin, data, dataLength);
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}
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bool PiecedSegment::isHashCalculated() const
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{
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return _piece->isHashCalculated();
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}
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std::string PiecedSegment::getHashString()
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{
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return _piece->getHashString();
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}
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#endif // ENABLE_MESSAGE_DIGEST
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void PiecedSegment::clear()
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{
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_writtenLength = 0;
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_overflowLength = 0;
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_piece->clearAllBlock();
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#ifdef ENABLE_MESSAGE_DIGEST
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_piece->destroyHashContext();
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#endif // ENABLE_MESSAGE_DIGEST
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}
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PieceHandle PiecedSegment::getPiece() const
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{
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return _piece;
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}
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} // namespace aria2
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