aboutsummaryrefslogtreecommitdiff
path: root/src/stable/bzip2.h
blob: e2c2753c6d691a40bd79563e25ba7a1df990119f (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
/*
 * Copyright (C) 2007-2014 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"

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