inflateinputstreambuf.hpp

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#pragma once
#ifndef INFLATEINPUTSTREAMBUF_HPP
#define INFLATEINPUTSTREAMBUF_HPP

/*
  Zipios -- a small C++ library that provides easy access to .zip files.

  Copyright (C) 2000-2007  Thomas Sondergaard
  Copyright (c) 2015-2022  Made to Order Software Corp.  All Rights Reserved

  This library is free software; you can redistribute it and/or
  modify it under the terms of the GNU Lesser General Public
  License as published by the Free Software Foundation; either
  version 2.1 of the License, or (at your option) any later version.

  This library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public
  License along with this library; if not, write to the Free Software
  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
*/

#include "filterinputstreambuf.hpp"

#include "zipios/zipios-config.hpp"

#include <vector>

#include <zlib.h>


namespace zipios
{


class InflateInputStreambuf : public FilterInputStreambuf
{
public:
                            InflateInputStreambuf(std::streambuf * inbuf, offset_t s_pos = -1);
                            InflateInputStreambuf(InflateInputStreambuf const & rhs) = delete;
    virtual                 ~InflateInputStreambuf();

    InflateInputStreambuf &  operator = (InflateInputStreambuf const & rhs) = delete;

    bool                    reset(offset_t stream_position = -1);

protected:
    virtual std::streambuf::int_type             underflow() override;

    std::vector<char>       m_outvec = std::vector<char>();

private:
    std::vector<char>       m_invec = std::vector<char>();

    z_stream                m_zs = z_stream();
    bool                    m_zs_initialized = false;
};


} // namespace

// Local Variables:
// mode: cpp
// indent-tabs-mode: nil
// c-basic-offset: 4
// tab-width: 4
// End:

// vim: ts=4 sw=4 et
#endif