index_encoder.c File Reference

Encodes the Index field. More...

#include "index_encoder.h"
#include "index.h"
#include "check.h"

Data Structures
struct	lzma_coder_s

Functions
static lzma_ret	index_encode (lzma_coder *coder, const lzma_allocator *allocator lzma_attribute((__unused__)), const uint8_t *restrict in lzma_attribute((__unused__)), size_t *restrict in_pos lzma_attribute((__unused__)), size_t in_size lzma_attribute((__unused__)), uint8_t *restrict out, size_t *restrict out_pos, size_t out_size, lzma_action action lzma_attribute((__unused__)))
static void	index_encoder_end (lzma_coder *coder, const lzma_allocator *allocator)
static void	index_encoder_reset (lzma_coder *coder, const lzma_index *i)
lzma_ret	lzma_index_encoder_init (lzma_next_coder *next, const lzma_allocator *allocator, const lzma_index *i)
lzma_ret	lzma_index_encoder (lzma_stream *strm, const lzma_index *i)
	Initialize .xz Index encoder. More...
lzma_ret	lzma_index_buffer_encode (const lzma_index *i, uint8_t *out, size_t *out_pos, size_t out_size)
	Single-call .xz Index encoder. More...

Detailed Description

Encodes the Index field.

Function Documentation

lzma_index_encoder()

lzma_ret lzma_index_encoder	(	lzma_stream *	strm,
		const lzma_index *	i
	)

Initialize .xz Index encoder.

Parameters

strm	Pointer to properly prepared lzma_stream
i	Pointer to lzma_index which should be encoded.

The valid `action' values for lzma_code() are LZMA_RUN and LZMA_FINISH. It is enough to use only one of them (you can choose freely; use LZMA_RUN to support liblzma versions older than 5.0.0).

Returns

- LZMA_OK: Initialization succeeded, continue with lzma_code().

• LZMA_MEM_ERROR
• LZMA_PROG_ERROR

References lzma_next_strm_init.

lzma_index_buffer_encode()

lzma_ret lzma_index_buffer_encode	(	const lzma_index *	i,
		uint8_t *	out,
		size_t *	out_pos,
		size_t	out_size
	)

Single-call .xz Index encoder.

Parameters

i	lzma_index to be encoded
out	Beginning of the output buffer
out_pos	The next byte will be written to out[*out_pos]. *out_pos is updated only if encoding succeeds.
out_size	Size of the out buffer; the first byte into which no data is written to is out[out_size].

Returns

- LZMA_OK: Encoding was successful.

• LZMA_BUF_ERROR: Output buffer is too small. Use lzma_index_size() to find out how much output space is needed.
• LZMA_PROG_ERROR

Note

This function doesn't take allocator argument since all the internal data is allocated on stack.

References LZMA_BUF_ERROR, lzma_index_size(), and LZMA_PROG_ERROR.