ZipArchiveLib::CBzip2Compressor Class Reference

#include <Bzip2Compressor.h>

Inheritance diagram for ZipArchiveLib::CBzip2Compressor:

List of all members.

Classes
struct	COptions
Public Member Functions
bool	CanProcess (WORD uMethod)
	CBzip2Compressor (CZipStorage *pStorage)
void	Compress (const void *pBuffer, DWORD uSize)
DWORD	Decompress (void *pBuffer, DWORD uSize)
void	FinishCompression (bool bAfterException)
void	FinishDecompression (bool bAfterException)
const CZipCompressor::COptions *	GetOptions () const
void	InitCompression (int iLevel, CZipFileHeader *pFile, CZipCryptograph *pCryptograph)
void	InitDecompression (CZipFileHeader *pFile, CZipCryptograph *pCryptograph)
Protected Member Functions
int	ConvertInternalError (int iErr) const
bool	IsCodeErrorOK (int iErr) const
void	UpdateOptions (const CZipCompressor::COptions *pOptions)

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Detailed Description

A compressor that uses the bzip2 algorithm.

See also:

Compressing Data

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Constructor & Destructor Documentation

ZipArchiveLib::CBzip2Compressor::CBzip2Compressor

(

CZipStorage *

pStorage )

Initializes a new instance of the CBzip2Compressor class.

Parameters:

pStorage

The current storage object.

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Member Function Documentation

bool ZipArchiveLib::CBzip2Compressor::CanProcess

(

WORD

uMethod )

[inline, virtual]

Returns the value indicating whether the current CZipCompressor object supports the given compression method.

Parameters:

uMethod

The compression method. It can be one of the CompressionMethod values.

Returns:

true, if the compression method is supported; false otherwise.

Implements CZipCompressor.

void ZipArchiveLib::CBzip2Compressor::Compress	(	const void *	pBuffer,
		DWORD	uSize
	)		[virtual]

Compresses the given data.

Parameters:

pBuffer	The buffer that holds the data to compress.
uSize	The size of pBuffer.

See also:

InitCompression

FinishCompression

Implements CZipCompressor.

int ZipArchiveLib::CBzip2Compressor::ConvertInternalError

(

int

iErr )

const [inline, protected, virtual]

Converts an internal error code of the compressor to the ZipArchive Library error code.

Parameters:

iErr	An internal error code.

Returns:

A ZipArchive Library error code.

Reimplemented from CZipCompressor.

DWORD ZipArchiveLib::CBzip2Compressor::Decompress	(	void *	pBuffer,
		DWORD	uSize
	)		[virtual]

Decompresses the given data.

Parameters:

pBuffer	The buffer that receives the decompressed data.
uSize	The size of pBuffer.

Returns:

The number of bytes decompressed and written to pBuffer.

Note:

This method should be called repeatedly until it returns 0.

See also:

InitDecompression

FinishDecompression

Implements CZipCompressor.

void ZipArchiveLib::CBzip2Compressor::FinishCompression

(

bool

bAfterException )

[virtual]

The method called at the end of the compression process.

Parameters:

bAfterException

Set to true, if an exception occurred before or to false otherwise.

See also:

InitCompression

Compress

Reimplemented from CZipCompressor.

void ZipArchiveLib::CBzip2Compressor::FinishDecompression

(

bool

bAfterException )

[virtual]

The method called at the end of the decompression process.

Parameters:

bAfterException

Set to true, if an exception occurred before or to false otherwise.

See also:

InitDecompression

Decompress

Reimplemented from CZipCompressor.

const CZipCompressor::COptions* ZipArchiveLib::CBzip2Compressor::GetOptions

(

)

const [inline, virtual]

Returns the current options of the compressor.

Returns:

The current options for the compressor.

See also:

Compressing Data

CZipArchive::SetCompressionOptions

UpdateOptions

Reimplemented from CZipCompressor.

void ZipArchiveLib::CBzip2Compressor::InitCompression	(	int	iLevel,
		CZipFileHeader *	pFile,
		CZipCryptograph *	pCryptograph
	)		[virtual]

The method called when a new file is opened for compression.

Parameters:

iLevel	The compression level.
pFile	The file being compressed.
pCryptograph	The current CZipCryptograph. It can be NULL, if no encryption is used.

See also:

Compress

FinishCompression

Reimplemented from CZipCompressor.

void ZipArchiveLib::CBzip2Compressor::InitDecompression	(	CZipFileHeader *	pFile,
		CZipCryptograph *	pCryptograph
	)		[virtual]

The method called when a new file is opened for extraction.

Parameters:

pFile	The file being extracted.
pCryptograph	The current CZipCryptograph. It can be NULL, if no decryption is used.

See also:

Decompress

FinishDecompression

Reimplemented from ZipArchiveLib::CBaseLibCompressor.

bool ZipArchiveLib::CBzip2Compressor::IsCodeErrorOK

(

int

iErr )

const [inline, protected, virtual]

Checks whether iErr value is an error code.

Parameters:

iErr	The code to check.

Returns:

true, if iErr is an error code; false otherwise.

Implements ZipArchiveLib::CBaseLibCompressor.

void ZipArchiveLib::CBzip2Compressor::UpdateOptions

(

const CZipCompressor::COptions *

pOptions )

[inline, protected, virtual]

Updates the current options with the new options.

Parameters:

pOptions

The new options to apply.

Reimplemented from CZipCompressor.

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

• Bzip2Compressor.h