/tmp/buildd/xz-utils-5.0.0/src/liblzma/lz/lz_decoder.h File Reference

LZ out window. More...

#include "common.h"

Data Structures
struct	lzma_dict
struct	lzma_lz_options
struct	lzma_lz_decoder
Defines
#define	LZMA_LZ_DECODER_INIT
Functions
lzma_ret	lzma_lz_decoder_init (lzma_next_coder *next, lzma_allocator *allocator, const lzma_filter_info *filters, lzma_ret(*lz_init)(lzma_lz_decoder *lz, lzma_allocator *allocator, const void *options, lzma_lz_options *lz_options))
uint64_t	lzma_lz_decoder_memusage (size_t dictionary_size)
void	lzma_lz_decoder_uncompressed (lzma_coder *coder, lzma_vli uncompressed_size)
static uint8_t	dict_get (const lzma_dict *const dict, const uint32_t distance)
	Get a byte from the history buffer.
static bool	dict_is_empty (const lzma_dict *const dict)
	Test if dictionary is empty.
static bool	dict_is_distance_valid (const lzma_dict *const dict, const size_t distance)
	Validate the match distance.
static bool	dict_repeat (lzma_dict *dict, uint32_t distance, uint32_t *len)
	Repeat *len bytes at distance.
static bool	dict_put (lzma_dict *dict, uint8_t byte)
static void	dict_write (lzma_dict *restrict dict, const uint8_t *restrict in, size_t *restrict in_pos, size_t in_size, size_t *restrict left)
	Copies arbitrary amount of data into the dictionary.
static void	dict_reset (lzma_dict *dict)

---

Detailed Description

LZ out window.

---

Define Documentation

#define LZMA_LZ_DECODER_INIT

Value:

(lzma_lz_decoder){ \
                .coder = NULL, \
                .code = NULL, \
                .reset = NULL, \
                .set_uncompressed = NULL, \
                .end = NULL, \
        }

---

Function Documentation

static uint8_t dict_get	(	const lzma_dict *const	dict,
		const uint32_t	distance
	)			[inline, static]

Get a byte from the history buffer.

References lzma_dict::buf, lzma_dict::pos, and lzma_dict::size.

Referenced by dict_repeat().

static bool dict_is_empty

(

const lzma_dict *const

dict

)

[inline, static]

Test if dictionary is empty.

References lzma_dict::full.

static bool dict_is_distance_valid	(	const lzma_dict *const	dict,
		const size_t	distance
	)			[inline, static]

Validate the match distance.

References lzma_dict::full.

static bool dict_repeat	(	lzma_dict *	dict,
		uint32_t	distance,
		uint32_t *	len
	)			[inline, static]

Repeat *len bytes at distance.

References lzma_dict::buf, dict_get(), lzma_dict::full, lzma_dict::limit, lzma_dict::pos, and lzma_dict::size.

static bool dict_put	(	lzma_dict *	dict,
		uint8_t	byte
	)			[inline, static]

Puts one byte into the dictionary. Returns true if the dictionary was already full and the byte couldn't be added.

References lzma_dict::buf, lzma_dict::full, lzma_dict::limit, and lzma_dict::pos.

static void dict_write	(	lzma_dict *restrict	dict,
		const uint8_t *restrict	in,
		size_t *restrict	in_pos,
		size_t	in_size,
		size_t *restrict	left
	)			[inline, static]

Copies arbitrary amount of data into the dictionary.