qfile_p.h

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#ifndef QFILE_P_H
#define QFILE_P_H

//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//

#include "QtCore/qabstractfileengine.h"
#include "private/qiodevice_p.h"
#include "private/qringbuffer_p.h"

QT_BEGIN_NAMESPACE

class QFilePrivate : public QIODevicePrivate
{
    Q_DECLARE_PUBLIC(QFile)

protected:
    QFilePrivate();
    ~QFilePrivate();

    bool openExternalFile(int flags, int fd, QFile::FileHandleFlags handleFlags);
    bool openExternalFile(int flags, FILE *fh, QFile::FileHandleFlags handleFlags);
#ifdef Q_OS_SYMBIAN
    bool openExternalFile(int flags, const RFile& f, QFile::FileHandleFlags handleFlags);
#endif

    QString fileName;
    mutable QAbstractFileEngine *fileEngine;

    bool lastWasWrite;
    QRingBuffer writeBuffer;
    inline bool ensureFlushed() const;

    bool putCharHelper(char c);
    
    QFile::FileError error;
    void setError(QFile::FileError err);
    void setError(QFile::FileError err, const QString &errorString);
    void setError(QFile::FileError err, int errNum);

    mutable qint64 cachedSize;

private:
    static QFile::EncoderFn encoder;
    static QFile::DecoderFn decoder;
};

QT_END_NAMESPACE

#endif // QFILE_P_H