aria2/src/ChunkChecksum.cc

86 lines
2.8 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2010 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#include "ChunkChecksum.h"
#include "A2STR.h"
namespace aria2 {
ChunkChecksum::ChunkChecksum() : pieceLength_(0) {}
ChunkChecksum::ChunkChecksum(std::string hashType,
std::vector<std::string> pieceHashes,
int32_t pieceLength)
: hashType_(std::move(hashType)),
pieceHashes_(std::move(pieceHashes)),
pieceLength_(pieceLength)
{
}
bool ChunkChecksum::validateChunk(const std::string& actualDigest,
size_t index) const
{
const std::string& digest = getPieceHash(index);
return !digest.empty() && actualDigest == digest;
}
int64_t ChunkChecksum::getEstimatedDataLength() const
{
return static_cast<int64_t>(pieceLength_) * pieceHashes_.size();
}
size_t ChunkChecksum::countPieceHash() const { return pieceHashes_.size(); }
const std::string& ChunkChecksum::getPieceHash(size_t index) const
{
if (index < pieceHashes_.size()) {
return pieceHashes_[index];
}
else {
return A2STR::NIL;
}
}
void ChunkChecksum::setHashType(std::string hashType)
{
hashType_ = std::move(hashType);
}
void ChunkChecksum::setPieceHashes(std::vector<std::string> pieceHashes)
{
pieceHashes_ = std::move(pieceHashes);
}
} // namespace aria2