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https://github.com/crystalidea/qt6windows7.git
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107 lines
2.5 KiB
C++
107 lines
2.5 KiB
C++
// Copyright (C) 2016 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#ifndef FILEMANAGER_H
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#define FILEMANAGER_H
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#include <QBitArray>
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#include <QList>
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#include <QMutex>
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#include <QThread>
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#include <QWaitCondition>
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#include "metainfo.h"
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QT_BEGIN_NAMESPACE
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class QByteArray;
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class QFile;
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class QTimerEvent;
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QT_END_NAMESPACE
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class FileManager : public QThread
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{
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Q_OBJECT
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public:
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FileManager(QObject *parent = nullptr);
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virtual ~FileManager();
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inline void setMetaInfo(const MetaInfo &info) { metaInfo = info; }
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inline void setDestinationFolder(const QString &directory) { destinationPath = directory; }
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qint32 read(qint32 pieceIndex, qint32 offset, qint32 length);
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void write(qint32 pieceIndex, qint32 offset, const QByteArray &data);
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void verifyPiece(qint32 pieceIndex);
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inline qint64 totalSize() const { return totalLength; }
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inline qint32 pieceCount() const { return numPieces; }
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qint32 pieceLengthAt(qint32 pieceIndex) const;
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QBitArray completedPieces() const;
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void setCompletedPieces(const QBitArray &pieces);
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QString errorString() const;
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public slots:
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void startDataVerification();
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signals:
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void dataRead(qint32 id, qint32 pieceIndex, qint32 offset, const QByteArray &data);
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void error();
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void verificationProgress(int percent);
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void verificationDone();
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void pieceVerified(qint32 pieceIndex, bool verified);
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protected:
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void run() override;
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private slots:
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bool verifySinglePiece(qint32 pieceIndex);
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void wakeUp();
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private:
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bool generateFiles();
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QByteArray readBlock(qint32 pieceIndex, qint32 offset, qint32 length);
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bool writeBlock(qint32 pieceIndex, qint32 offset, const QByteArray &data);
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void verifyFileContents();
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struct WriteRequest {
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qint32 pieceIndex;
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qint32 offset;
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QByteArray data;
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};
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struct ReadRequest {
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qint32 pieceIndex;
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qint32 offset;
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qint32 length;
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qint32 id;
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};
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QString errString;
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QString destinationPath;
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MetaInfo metaInfo;
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QList<QFile *> files;
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QList<QByteArray> sha1s;
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QBitArray verifiedPieces;
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bool newFile;
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int pieceLength;
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qint64 totalLength;
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int numPieces;
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int readId;
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bool startVerification;
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bool quit;
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bool wokeUp;
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QList<WriteRequest> writeRequests;
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QList<ReadRequest> readRequests;
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QList<int> pendingVerificationRequests;
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QList<int> newPendingVerificationRequests;
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QList<qint64> fileSizes;
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mutable QMutex mutex;
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mutable QWaitCondition cond;
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};
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#endif
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