CompressionStream Class Reference

#include <compression_stream.h>

Public Member Functions
	CompressionStream (int compress_strategy_=Z_DEFAULT_STRATEGY)
	~CompressionStream ()
const char *	compress (const char *buf, size_t *p_size)
void	decompress_start ()
bool	decompress_chunk (const char *p, int len, std::string &buf)
	Returns true if this was the final chunk. More...

Private Member Functions
void	lazy_alloc_deflate_zstream ()
	Allocate the zstream for deflating, if not already allocated. More...
void	lazy_alloc_inflate_zstream ()
	Allocate the zstream for inflating, if not already allocated. More...

Private Attributes
int	compress_strategy
size_t	out_len
char *	out
z_stream *	deflate_zstream
	Zlib state object for deflating. More...
z_stream *	inflate_zstream
	Zlib state object for inflating. More...

Detailed Description

Definition at line 29 of file compression_stream.h.

Constructor & Destructor Documentation

CompressionStream()

CompressionStream::CompressionStream ( int  compress_strategy_ = Z_DEFAULT_STRATEGY )

inlineexplicit

Definition at line 54 of file compression_stream.h.

References compress(), and ~CompressionStream().

~CompressionStream()

CompressionStream::~CompressionStream

(

)

Definition at line 34 of file compression_stream.cc.

Referenced by CompressionStream().

Member Function Documentation

compress()

const char * CompressionStream::compress	(	const char *	buf,
		size_t *	p_size
	)

Definition at line 53 of file compression_stream.cc.

Referenced by CompressionStream().

decompress_chunk()

bool CompressionStream::decompress_chunk	(	const char *	p,
		int	len,
		std::string &	buf
	)

Returns true if this was the final chunk.

Definition at line 87 of file compression_stream.cc.

Referenced by Glass::LeafItem_base< uint8_t *>::decompress_chunk(), and decompress_start().

decompress_start()

void CompressionStream::decompress_start ( )

inline

Definition at line 66 of file compression_stream.h.

References decompress_chunk(), and lazy_alloc_inflate_zstream().

lazy_alloc_deflate_zstream()

void CompressionStream::lazy_alloc_deflate_zstream ( )

private

Allocate the zstream for deflating, if not already allocated.

Definition at line 118 of file compression_stream.cc.

References rare, Xapian::Internal::str(), and usual.

lazy_alloc_inflate_zstream()

void CompressionStream::lazy_alloc_inflate_zstream ( )

private

Allocate the zstream for inflating, if not already allocated.

Definition at line 155 of file compression_stream.cc.

References rare, Xapian::Internal::str(), and usual.

Referenced by decompress_start().

Member Data Documentation

compress_strategy

int CompressionStream::compress_strategy

private

Definition at line 30 of file compression_stream.h.

deflate_zstream

z_stream* CompressionStream::deflate_zstream

private

Zlib state object for deflating.

Definition at line 37 of file compression_stream.h.

inflate_zstream

z_stream* CompressionStream::inflate_zstream

private

Zlib state object for inflating.

Definition at line 40 of file compression_stream.h.

out

char* CompressionStream::out

private

Definition at line 34 of file compression_stream.h.

out_len

size_t CompressionStream::out_len

private

Definition at line 32 of file compression_stream.h.

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

• common/compression_stream.h
• common/compression_stream.cc