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TarOutputStream.h

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#ifndef CLASSLIB_TAR_OUTPUT_STREAM_H
# define CLASSLIB_TAR_OUTPUT_STREAM_H

//<<<<<< INCLUDES                                                       >>>>>>

# include "classlib/zip/TarConstants.h"
# include "classlib/iotools/FilterOutputStream.h"

namespace lat {
//<<<<<< PUBLIC DEFINES                                                 >>>>>>
//<<<<<< PUBLIC CONSTANTS                                               >>>>>>
//<<<<<< PUBLIC TYPES                                                   >>>>>>

class TarMember;
class MemoryStorage;

//<<<<<< PUBLIC VARIABLES                                               >>>>>>
//<<<<<< PUBLIC FUNCTIONS                                               >>>>>>
//<<<<<< CLASS DECLARATIONS                                             >>>>>>

class TarOutputStream : public FilterOutputStream, public TarConstants
{
public:
    TarOutputStream (OutputStream *output, bool pad = true);
    ~TarOutputStream (void);
    // no copy constructor
    // no assignment operator

    using FilterOutputStream::write;
    virtual void        setPadding (bool padTrailer);
    virtual void        nextMember (TarMember *member, bool autobuffer=false);
    virtual IOSize      write (const void *from, IOSize n);
    virtual void        closeMember (void);
    virtual void        finish (void);

protected:
    virtual void        writeHeader (void);

private:
    TarMember           *m_current;     //< Current member we are writing
    MemoryStorage       *m_buffer;      //< Automatic buffer if requested
    IOOffset            m_remaining;    //< Bytes still to come for this member
    IOOffset            m_padding;      //< Bytes to be pad after this member
    IOOffset            m_blocks;       /*< Number of blocks written
                                            so far, for calculating
                                            the amount of padding at
                                            the end of the archive.  */
    bool                m_pad;          //< Indicates whether to pad at the end
    bool                m_finished;     //< Indicates when #finished() was done
};

//<<<<<< INLINE PUBLIC FUNCTIONS                                        >>>>>>
//<<<<<< INLINE MEMBER FUNCTIONS                                        >>>>>>

} // namespace lat
#endif // CLASSLIB_TAR_OUTPUT_STREAM_H

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