3b0c2b7c1b
Q_DECL_OVERRIDE (which expands to 'override' for supported compiler) helps to declare the intent (that it is an overridden function) and force compilation error when there is no such virtual function in the base class. The examples should show the best practice of having it, as it may save the programmer quite some time in case of change of API or typo in the function name or arguments. This change was done automatically with clang-modernize -add-override -override-macros And fixed MSVC compilation by removing inline for TorrentViewDelegate::paint Change-Id: Ice66ae93fae571266f908703d5b8892b2c1ebb1a Reviewed-by: Jędrzej Nowacki <jedrzej.nowacki@digia.com>
144 lines
4.3 KiB
C++
144 lines
4.3 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
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** of its contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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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 = 0);
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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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int read(int pieceIndex, int offset, int length);
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void write(int pieceIndex, int offset, const QByteArray &data);
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void verifyPiece(int pieceIndex);
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inline qint64 totalSize() const { return totalLength; }
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inline int pieceCount() const { return numPieces; }
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int pieceLengthAt(int 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(int id, int pieceIndex, int 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(int pieceIndex, bool verified);
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protected:
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void run() Q_DECL_OVERRIDE;
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private slots:
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bool verifySinglePiece(int pieceIndex);
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void wakeUp();
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private:
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bool generateFiles();
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QByteArray readBlock(int pieceIndex, int offset, int length);
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bool writeBlock(int pieceIndex, int offset, const QByteArray &data);
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void verifyFileContents();
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struct WriteRequest {
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int pieceIndex;
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int offset;
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QByteArray data;
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};
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struct ReadRequest {
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int pieceIndex;
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int offset;
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int length;
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int 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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