mirror of https://github.com/aria2/aria2
97 lines
2.7 KiB
C++
97 lines
2.7 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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#ifndef D_SEGMENT_H
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#define D_SEGMENT_H
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#include "common.h"
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#include <stdint.h>
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#include <string>
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#include <memory>
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namespace aria2 {
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class Piece;
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class WrDiskCache;
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class Segment {
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public:
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virtual ~Segment() {}
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virtual bool complete() const = 0;
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virtual size_t getIndex() const = 0;
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virtual int64_t getPosition() const = 0;
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virtual int64_t getPositionToWrite() const = 0;
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virtual int32_t getLength() const = 0;
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virtual int32_t getSegmentLength() const = 0;
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virtual int32_t getWrittenLength() const = 0;
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virtual void updateWrittenLength(int32_t bytes) = 0;
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#ifdef ENABLE_MESSAGE_DIGEST
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// `begin' is a offset inside this segment.
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virtual bool updateHash
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(int32_t begin,
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const unsigned char* data,
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size_t dataLength) = 0;
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virtual bool isHashCalculated() const = 0;
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virtual std::string getDigest() = 0;
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#endif // ENABLE_MESSAGE_DIGEST
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virtual void clear(WrDiskCache* diskCache) = 0;
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virtual std::shared_ptr<Piece> getPiece() const = 0;
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bool operator==(const Segment& segment) const
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{
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return getIndex() == segment.getIndex();
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}
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};
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} // namespace aria2
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#endif // D_SEGMENT_H
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