29 lines
578 B
C++
29 lines
578 B
C++
#pragma once
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#include <QIODevice>
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#include "zlib.h"
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class QFile;
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class GzipDevice : public QIODevice
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{
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public:
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GzipDevice(QFile &file, QObject *parent = nullptr);
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~GzipDevice() override;
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bool isSequential() const override;
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bool atEnd() const override;
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protected:
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qint64 readData(char *data, qint64 maxlen) override;
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qint64 writeData(const char *data, qint64 len) override;
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private:
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QFile &m_file;
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static constexpr std::size_t m_readBufferSize { 32 * 1024 };
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char m_readBuffer[m_readBufferSize];
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z_stream strm;
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int m_result;
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};
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