sprint/io/gzip.h

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/******************************************************************************
*   sprint::gzip
*
*   Copyright (C) 2005-2011  Paolo Medici <www.pmx.it>
*
*  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
*
*******************************************************************************/
#ifndef _SPRINT_IO_GZIP_H
#define _SPRINT_IO_GZIP_H

#include <sprint/io/type.h>
#include <zlib.h>

namespace sprint {
  namespace io {

        class gzip {
        gzFile file;               // file handle for compressed file
        int m_mode;
        bool m_opened;
        public:
    gzip(const char *filename, sprint::io::flag_t openMode, int compression_level=9);
    
        ~gzip();
        
        sprint::io::caps_t capabilities() const;

        int write(const char *buf, unsigned int size);
        int read(char *buf, unsigned int size);
        
        sprint::io::file_size_t seek(file_size_t offset, sprint::io::seek_t type);
        
        sprint::io::state_t state();
        
        sprint::io::file_size_t length() const;
        };
  }
}

#endif