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mirror of https://github.com/d47081/qBittorrent.git synced 2025-01-23 21:14:33 +00:00
Chocobo1 b3fb6bd990
Avoid redundant hashing
The return type of `std::hash()` is larger (or equal) than what
`qHash()` requires so we can omit hashing it again.
2022-03-13 17:37:54 +08:00

111 lines
3.3 KiB
C++

/*
* Bittorrent Client using Qt and libtorrent.
* Copyright (C) 2015, 2021 Vladimir Golovnev <glassez@yandex.ru>
*
* 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 this program with the OpenSSL project's "OpenSSL" library (or with
* modified versions of it that use the same license as the "OpenSSL" library),
* and distribute the linked executables. 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), 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.
*/
#include "infohash.h"
const int TorrentIDTypeId = qRegisterMetaType<BitTorrent::TorrentID>();
BitTorrent::InfoHash::InfoHash(const WrappedType &nativeHash)
: m_valid {true}
, m_nativeHash {nativeHash}
{
}
#ifdef QBT_USES_LIBTORRENT2
BitTorrent::InfoHash::InfoHash(const SHA1Hash &v1, const SHA256Hash &v2)
: InfoHash {WrappedType(v1, v2)}
{
}
#endif
bool BitTorrent::InfoHash::isValid() const
{
return m_valid;
}
SHA1Hash BitTorrent::InfoHash::v1() const
{
#ifdef QBT_USES_LIBTORRENT2
return (m_nativeHash.has_v1() ? SHA1Hash(m_nativeHash.v1) : SHA1Hash());
#else
return {m_nativeHash};
#endif
}
SHA256Hash BitTorrent::InfoHash::v2() const
{
#ifdef QBT_USES_LIBTORRENT2
return (m_nativeHash.has_v2() ? SHA256Hash(m_nativeHash.v2) : SHA256Hash());
#else
return {};
#endif
}
BitTorrent::TorrentID BitTorrent::InfoHash::toTorrentID() const
{
#ifdef QBT_USES_LIBTORRENT2
return m_nativeHash.get_best();
#else
return {m_nativeHash};
#endif
}
BitTorrent::InfoHash::operator WrappedType() const
{
return m_nativeHash;
}
BitTorrent::TorrentID BitTorrent::TorrentID::fromString(const QString &hashString)
{
return {BaseType::fromString(hashString)};
}
BitTorrent::TorrentID BitTorrent::TorrentID::fromInfoHash(const BitTorrent::InfoHash &infoHash)
{
return infoHash.toTorrentID();
}
#if (QT_VERSION >= QT_VERSION_CHECK(6, 0, 0))
std::size_t BitTorrent::qHash(const BitTorrent::TorrentID &key, const std::size_t seed)
#else
uint BitTorrent::qHash(const BitTorrent::TorrentID &key, const uint seed)
#endif
{
return ::qHash(static_cast<TorrentID::BaseType>(key), seed);
}
bool BitTorrent::operator==(const BitTorrent::InfoHash &left, const BitTorrent::InfoHash &right)
{
return (static_cast<InfoHash::WrappedType>(left) == static_cast<InfoHash::WrappedType>(right));
}
bool BitTorrent::operator!=(const BitTorrent::InfoHash &left, const BitTorrent::InfoHash &right)
{
return !(left == right);
}