/*
 * Copyright (C) 2007-2019 Xagasoft, All rights reserved.
 *
 * This file is part of the libbu++ library and is released under the
 * terms of the license contained in the file LICENSE.
 */

#ifndef BU_BZIP2_H
#define BU_BZIP2_H

#include <stdint.h>

#include "bu/filter.h"
#include "bu/autoconfig.h"

#ifdef BU_HAS_BZIP2

namespace Bu
{
    /**
     * Provides BZip2 type compression and decompression.
     *
     *@ingroup Streams
     *@ingroup Compression
     */
    class BZip2 : public Bu::Filter
    {
    public:
        BZip2( Bu::Stream &rNext, int nCompression=9 );
        virtual ~BZip2();

        virtual void start();
        virtual Bu::size stop();
        virtual Bu::size read( void *pBuf, Bu::size nBytes );
        virtual Bu::size write( const void *pBuf, Bu::size nBytes );

        virtual bool isOpen();

        Bu::size getCompressedSize();

    private:
        void bzError( int code );
        void *prState;
        bool bReading;
        int nCompression;
        char *pBuf;
        uint32_t nBufSize;
        Bu::size sTotalOut;
    };
}

#endif

#endif