Compression

Collaboration diagram for Compression:

Data Structures
struct	compress_params

Enumerations
enum	compressor_type {   COMPRESSOR_TYPE_UNKNOWN = -1 , COMPRESSOR_TYPE_NONE , COMPRESSOR_TYPE_GZIP , COMPRESSOR_TYPE_XZ ,   COMPRESSOR_TYPE_ZSTD , COMPRESSOR_TYPE_BZIP2 , COMPRESSOR_TYPE_LZMA , COMPRESSOR_TYPE_MAX }
enum	compressor_strategy {   COMPRESSOR_STRATEGY_UNKNOWN = -1 , COMPRESSOR_STRATEGY_NONE , COMPRESSOR_STRATEGY_FILTERED , COMPRESSOR_STRATEGY_HUFFMAN ,   COMPRESSOR_STRATEGY_RLE , COMPRESSOR_STRATEGY_FIXED , COMPRESSOR_STRATEGY_EXTREME }

Functions
enum compressor_type	compressor_find_by_name (const char *name)
enum compressor_type	compressor_find_by_extension (const char *name)
const char *	compressor_get_name (enum compressor_type type)
const char *	compressor_get_extension (enum compressor_type type)
enum compressor_strategy	compressor_get_strategy (const char *name)
bool	compressor_check_params (struct compress_params *params, struct dpkg_error *err)
void	decompress_filter (struct compress_params *params, int fd_in, int fd_out, const char *desc,...) DPKG_ATTR_PRINTF(4)
void	compress_filter (struct compress_params *params, int fd_in, int fd_out, const char *desc,...) DPKG_ATTR_PRINTF(4)

Detailed Description

Enumeration Type Documentation

compressor_strategy

enum compressor_strategy

Enumerator
COMPRESSOR_STRATEGY_UNKNOWN
COMPRESSOR_STRATEGY_NONE
COMPRESSOR_STRATEGY_FILTERED
COMPRESSOR_STRATEGY_HUFFMAN
COMPRESSOR_STRATEGY_RLE
COMPRESSOR_STRATEGY_FIXED
COMPRESSOR_STRATEGY_EXTREME

compressor_type

enum compressor_type

Enumerator
COMPRESSOR_TYPE_UNKNOWN
COMPRESSOR_TYPE_NONE
COMPRESSOR_TYPE_GZIP
COMPRESSOR_TYPE_XZ
COMPRESSOR_TYPE_ZSTD
COMPRESSOR_TYPE_BZIP2
COMPRESSOR_TYPE_LZMA
COMPRESSOR_TYPE_MAX

Function Documentation

compress_filter()

void compress_filter	(	struct compress_params *	params,
		int	fd_in,
		int	fd_out,
		const char *	desc,
			...
	)

References args, varbuf::buf, compressor::compress, compress_params::type, varbuf_destroy(), VARBUF_INIT, and varbuf_vprintf().

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compressor_check_params()

bool compressor_check_params	(	struct compress_params *	params,
		struct dpkg_error *	err
	)

References _, COMPRESSOR_STRATEGY_EXTREME, COMPRESSOR_STRATEGY_FILTERED, COMPRESSOR_STRATEGY_FIXED, COMPRESSOR_STRATEGY_HUFFMAN, COMPRESSOR_STRATEGY_NONE, COMPRESSOR_STRATEGY_RLE, COMPRESSOR_TYPE_GZIP, COMPRESSOR_TYPE_XZ, COMPRESSOR_TYPE_ZSTD, dpkg_put_error(), DPKG_ZSTD_MAX_LEVEL, compress_params::level, compress_params::strategy, and compress_params::type.

Referenced by do_build(), and main().

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compressor_find_by_extension()

enum compressor_type compressor_find_by_extension

(

const char *

name

)

References array_count, COMPRESSOR_TYPE_UNKNOWN, and compressor::extension.

Referenced by extracthalf().

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compressor_find_by_name()

enum compressor_type compressor_find_by_name

(

const char *

name

)

References array_count, COMPRESSOR_TYPE_UNKNOWN, and compressor::name.

compressor_get_extension()

const char * compressor_get_extension

(

enum compressor_type

type

)

References compressor::extension.

Referenced by do_build().

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compressor_get_name()

const char * compressor_get_name

(

enum compressor_type

type

)

References compressor::name.

Referenced by main().

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compressor_get_strategy()

enum compressor_strategy compressor_get_strategy

(

const char *

name

)

References COMPRESSOR_STRATEGY_EXTREME, COMPRESSOR_STRATEGY_FILTERED, COMPRESSOR_STRATEGY_FIXED, COMPRESSOR_STRATEGY_HUFFMAN, COMPRESSOR_STRATEGY_NONE, COMPRESSOR_STRATEGY_RLE, COMPRESSOR_STRATEGY_UNKNOWN, and compressor::name.

decompress_filter()

void decompress_filter	(	struct compress_params *	params,
		int	fd_in,
		int	fd_out,
		const char *	desc,
			...
	)

References args, varbuf::buf, compressor::decompress, compress_params::type, varbuf_destroy(), VARBUF_INIT, and varbuf_vprintf().

Referenced by extracthalf().

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