GzipDecompress Class Reference

Inheritance diagram for GzipDecompress:

List of all members.

Public Member Functions
u_long	decompress (const char *in, u_long sizeIn, char *out, u_long sizeOut)
virtual int	flush (u_long *)
u_long	flush (char *out, u_long sizeOut)
u_long	free ()
virtual int	getFooter (char *buffer, u_long len, u_long *nbw)
u_long	getFooter (char *str, int size)
virtual int	getHeader (char *buffer, u_long len, u_long *nbw)
u_long	getHeader (char *buffer, u_long buffersize)
virtual const char *	getName (char *name, u_long len)
	GzipDecompress ()
u_long	initialize ()
virtual int	modifyData ()
virtual int	read (char *buffer, u_long len, u_long *)
u_long	updateCRC (char *buffer, int size)
virtual int	write (const char *buffer, u_long len, u_long *)
	~GzipDecompress ()
Static Public Member Functions
Filter *	factory (const char *name)
u_long	footerSize ()
u_long	headerSize ()
Private Attributes
int	active
GzipData	data

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Detailed Description

Include the ZLIB library header file.

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Constructor & Destructor Documentation

GzipDecompress::GzipDecompress (   )

Constructor for the class.

GzipDecompress::~GzipDecompress (   )

Destructor for the class.

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Member Function Documentation

u_long GzipDecompress::decompress (  const char *  in, u_long  sizeIn, char *  out, u_long  sizeOut )

Decompress the in buffer to the out buffer using the gzip compression. Parameters: in  Buffer to decompress. sizeIn  The dimension of the buffer to decompress. out  Buffer where decompress. sizeOut  The dimension of the buffer where decompress.

Filter * GzipDecompress::factory (  const char *  name  )  [static]

Returns a new GzipDecompress object. Parameters: name  Filter name.

int GzipDecompress::flush (  u_long *  nbw  )  [virtual]

Inherited from Filter. Parameters: nbw  Number of flushed bytes. Reimplemented from Filter.

u_long GzipDecompress::flush (  char *  out, u_long  sizeOut )

Flush all the remaining data. Parameters: out  Buffer where write. sizeOut  Buffer length.

u_long GzipDecompress::footerSize (   )  [static]

Get the GZIP footer size.

u_long GzipDecompress::free (   )

Close the gzip compression.

int GzipDecompress::getFooter (  char *  buffer, u_long  len, u_long *  nbw )  [virtual]

Inherited from Filter. Parameters: buffer  Buffer where write. len  Buffer length. nbw  Numbers of written bytes. Reimplemented from Filter.

u_long GzipDecompress::getFooter (  char *  str, int  size )

Get the GZIP footer. Parameters: str  Buffer where write. size  Buffer length.

int GzipDecompress::getHeader (  char *  buffer, u_long  len, u_long *  nbw )  [virtual]

From Filter Reimplemented from Filter.

u_long GzipDecompress::getHeader (  char *  buffer, u_long  buffersize )

Copy the GZIP header in the buffer. Parameters: buffer  Buffer where write. buffersize  Buffer length.

const char * GzipDecompress::getName (  char *  name, u_long  len )  [virtual]

Return a string with the filter name. If an external buffer is provided write the name there too. Parameters: name  Buffer where write the filter name. len  Buffer size. Reimplemented from Filter.

u_long GzipDecompress::headerSize (   )  [static]

Get the GZIP header size.

u_long GzipDecompress::initialize (   )

Initialize the gzip structure value.

int GzipDecompress::modifyData (   )  [virtual]

The GzipDecompress filter modifies the data. Reimplemented from Filter.

int GzipDecompress::read (  char *  buffer, u_long  len, u_long *  nbr )  [virtual]

Inherited from Filter. This function uses an internal buffer slowing it. It is better to use directly the GzipDecompress::compress routine where possible. Parameters: buffer  Buffer where write. len  Buffer length. nbr  Number of read bytes. Reimplemented from Filter.

u_long GzipDecompress::updateCRC (  char *  buffer, int  size )

int GzipDecompress::write (  const char *  buffer, u_long  len, u_long *  nbw )  [virtual]

Inherited from Filter. Parameters: buffer  Buffer where write. len  Buffer length. nbw  Number of written bytes. Reimplemented from Filter.

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Member Data Documentation

int GzipDecompress::active [private]

GzipData GzipDecompress::data [private]

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