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Make Digest32 implicitly shared class

This commit is contained in:
Vladimir Golovnev (Glassez) 2022-01-23 18:44:59 +03:00
parent 9553afc3c2
commit c40408b337
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2 changed files with 22 additions and 12 deletions

View File

@ -85,3 +85,6 @@ namespace BitTorrent
} }
Q_DECLARE_METATYPE(BitTorrent::TorrentID) Q_DECLARE_METATYPE(BitTorrent::TorrentID)
// We can declare it as Q_MOVABLE_TYPE to improve performance
// since base type uses QSharedDataPointer as the only member
Q_DECLARE_TYPEINFO(BitTorrent::TorrentID, Q_MOVABLE_TYPE);

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@ -32,6 +32,8 @@
#include <QByteArray> #include <QByteArray>
#include <QHash> #include <QHash>
#include <QSharedData>
#include <QSharedDataPointer>
#include <QString> #include <QString>
template <int N> template <int N>
@ -43,11 +45,11 @@ public:
Digest32() = default; Digest32() = default;
Digest32(const UnderlyingType &nativeDigest) Digest32(const UnderlyingType &nativeDigest)
: m_valid {true}
, m_nativeDigest {nativeDigest}
{ {
m_dataPtr->valid = true;
m_dataPtr->nativeDigest = nativeDigest;
const QByteArray raw = QByteArray::fromRawData(nativeDigest.data(), length()); const QByteArray raw = QByteArray::fromRawData(nativeDigest.data(), length());
m_hashString = QString::fromLatin1(raw.toHex()); m_dataPtr->hashString = QString::fromLatin1(raw.toHex());
} }
static constexpr int length() static constexpr int length()
@ -57,12 +59,12 @@ public:
bool isValid() const bool isValid() const
{ {
return m_valid; return m_dataPtr->valid;
} }
operator UnderlyingType() const operator UnderlyingType() const
{ {
return m_nativeDigest; return m_dataPtr->nativeDigest;
} }
static Digest32 fromString(const QString &digestString) static Digest32 fromString(const QString &digestString)
@ -75,22 +77,27 @@ public:
return {}; return {};
Digest32 result; Digest32 result;
result.m_valid = true; result.m_dataPtr->valid = true;
result.m_hashString = digestString; result.m_dataPtr->hashString = digestString;
result.m_nativeDigest.assign(raw.constData()); result.m_dataPtr->nativeDigest.assign(raw.constData());
return result; return result;
} }
QString toString() const QString toString() const
{ {
return m_hashString; return m_dataPtr->hashString;
} }
private: private:
bool m_valid = false; struct Data : public QSharedData
UnderlyingType m_nativeDigest; {
QString m_hashString; bool valid = false;
UnderlyingType nativeDigest;
QString hashString;
};
QSharedDataPointer<Data> m_dataPtr {new Data};
}; };
template <int N> template <int N>