xztar.h

[詳解]

/*==========================================================================*/
/* Lhaz .tar.xzインタフェース                            chitora@chitora.jp */
/*==========================================================================*/
#pragma once
 
#include "../tgz/tar.h"
#include "lzma.h"
 
class MYSTR;
class MYFILE;
 
class XZTAR : public CTAR {
 
public:
    // 解凍用コンストラクタ
    XZTAR(const MYSTR& name);
    // 圧縮用コンストラクタ
    XZTAR(const MYSTR& name, int method);
    ‾XZTAR(void);
    uint64_t    Get_total_in(void) const;
 
private:
    enum {
#if BUFSIZ <= 1024
        IO_BUFFER_SIZE = 8192
#else
        IO_BUFFER_SIZE = BUFSIZ
#endif
    };
    //
    size_t      TarRead(void *buf, size_t size, unsigned long* crc);
    int         TarSeek(fpos_t offset, int origin);
    size_t      TarWrite(const void* buf, size_t size, bool eof);
    //
    uint64_t    MemLimit;
    MYFILE*     File;
    lzma_stream Stream;
    uint8_t     InBuf[IO_BUFFER_SIZE];
    uint8_t     OutBuf[IO_BUFFER_SIZE];
    bool        FirstEncode;
    int         Method;
 
};