cheprep::GZIPOutputStreamBuffer Class Reference

#include <GZIPOutputStreamBuffer.h>

Inheritance diagram for cheprep::GZIPOutputStreamBuffer:

Collaboration diagram for cheprep::GZIPOutputStreamBuffer:

Public Member Functions
	GZIPOutputStreamBuffer (std::streambuf *outbuf)
int	overflow (int)
void	setFilename (const std::string &filename)
void	setComment (const std::string &comment)
void	close ()
virtual	~GZIPOutputStreamBuffer ()
Public Member Functions inherited from cheprep::DeflateOutputStreamBuffer
	DeflateOutputStreamBuffer (std::streambuf *buffer)
void	init (bool compress)
void	finish ()
virtual	~DeflateOutputStreamBuffer ()

Private Member Functions
void	writeHeader ()
void	writeTrailer ()

Private Attributes
std::string	filename
std::string	comment
bool	open

Additional Inherited Members
Protected Member Functions inherited from cheprep::DeflateOutputStreamBuffer
int	overflow (int c=EOF)
bool	flushOut ()
void	putUI (unsigned int ui)
void	putUS (unsigned short us)
void	putUB (unsigned char ub)
void	putS (const std::string s)
std::streampos	pos ()
unsigned int	getSize ()
unsigned int	getCRC ()

Detailed Description

Definition at line 15 of file GZIPOutputStreamBuffer.h.

Constructor & Destructor Documentation

GZIPOutputStreamBuffer()

cheprep::GZIPOutputStreamBuffer::GZIPOutputStreamBuffer

(

std::streambuf *

outbuf

)

Definition at line 13 of file GZIPOutputStreamBuffer.cc.

        : DeflateOutputStreamBuffer(aBuffer),
          open(false) {
            
        init(true);
    }

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~GZIPOutputStreamBuffer()

cheprep::GZIPOutputStreamBuffer::~GZIPOutputStreamBuffer ( )

virtual

Definition at line 37 of file GZIPOutputStreamBuffer.cc.

                                                    {
        close() ;
    }

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Member Function Documentation

close()

void cheprep::GZIPOutputStreamBuffer::close

(

)

Definition at line 28 of file GZIPOutputStreamBuffer.cc.

                                       {
        if (!open) return;

        finish();         
        writeTrailer();
      
        open = false ;
    }

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overflow()

int cheprep::GZIPOutputStreamBuffer::overflow

(

int

c

)

Definition at line 41 of file GZIPOutputStreamBuffer.cc.

                                                {
        if (!open) {
            writeHeader();
            open = true;
        }
        return DeflateOutputStreamBuffer::overflow( c ) ;
    }

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setComment()

void cheprep::GZIPOutputStreamBuffer::setComment

(

const std::string &

comment

)

Definition at line 24 of file GZIPOutputStreamBuffer.cc.

                                                             {
        comment = c ;
    }

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setFilename()

void cheprep::GZIPOutputStreamBuffer::setFilename

(

const std::string &

filename

)

Definition at line 20 of file GZIPOutputStreamBuffer.cc.

                                                                 {
        filename = name ;
    }

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writeHeader()

void cheprep::GZIPOutputStreamBuffer::writeHeader ( )

private

Definition at line 49 of file GZIPOutputStreamBuffer.cc.

                                             {
        unsigned char flag = 0x00;
        flag |= (filename == "") ? 0x00 : 0x08;
        flag |= (comment  == "") ? 0x00 : 0x10;
    
        putUB(0x1f);  // Magic #
        putUB(0x8b);  // Magic #        
        putUB(0x08);  // Deflater.DEFLATED
        putUB(flag);  // FLG
        putUI(0x00000000);  // MTIME
        putUB(0x00);  // XFLG
        putUB(0x00);  // OS
            
        if (filename != "") {
            putS(filename); // Filename
            putUB(0x00);
        }
        
        if (comment != "") {
            putS(comment); // Comment
            putUB(0x00);
        }
    }

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writeTrailer()

void cheprep::GZIPOutputStreamBuffer::writeTrailer ( )

private

Definition at line 73 of file GZIPOutputStreamBuffer.cc.

                                              {
        putUI(getCRC());
        putUI(getSize());
    }

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Member Data Documentation

comment

std::string cheprep::GZIPOutputStreamBuffer::comment

private

Definition at line 35 of file GZIPOutputStreamBuffer.h.

filename

std::string cheprep::GZIPOutputStreamBuffer::filename

private

Definition at line 34 of file GZIPOutputStreamBuffer.h.

open

bool cheprep::GZIPOutputStreamBuffer::open

private

Definition at line 36 of file GZIPOutputStreamBuffer.h.

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The documentation for this class was generated from the following files:

• GZIPOutputStreamBuffer.h
• GZIPOutputStreamBuffer.cc