File indexing completed on 2024-04-14 03:50:29

 /* This file is part of the KDE libraries
    SPDX-FileCopyrightText: 2001, 2002, 2007 David Faure <faure@kde.org>
 
    SPDX-License-Identifier: LGPL-2.0-or-later
 */
 
 #ifndef klimitediodevice_p_h
 #define klimitediodevice_p_h
 
 #include <QDebug>
 #include <QIODevice>
 /**
  * A readonly device that reads from an underlying device
  * from a given point to another (e.g. to give access to a single
  * file inside an archive).
  * @author David Faure <faure@kde.org>
  * @internal - used by KArchive
  */
 class KLimitedIODevice : public QIODevice
 {
     Q_OBJECT
 public:
     /**
      * Creates a new KLimitedIODevice.
      * @param dev the underlying device, opened or not
      * This device itself auto-opens (in readonly mode), no need to open it.
      * @param start where to start reading (position in bytes)
      * @param length the length of the data to read (in bytes)
      */
     KLimitedIODevice(QIODevice *dev, qint64 start, qint64 length);
     ~KLimitedIODevice() override
     {
     }
 
     bool isSequential() const override;
 
     bool open(QIODevice::OpenMode m) override;
     void close() override;
 
     qint64 size() const override;
 
     qint64 readData(char *data, qint64 maxlen) override;
     qint64 writeData(const char *, qint64) override
     {
         return -1; // unsupported
     }
 
     // virtual qint64 pos() const { return m_dev->pos() - m_start; }
     bool seek(qint64 pos) override;
     qint64 bytesAvailable() const override;
 
 private:
     QIODevice *m_dev;
     qint64 m_start;
     qint64 m_length;
 };
 
 #endif