lz4s.c File Reference

#include "roslz4/lz4s.h"
#include "xxhash.h"
#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>

Include dependency graph for lz4s.c:

Go to the source code of this file.

Classes
struct	stream_state

Macros
#define	DEBUG(...)
#define	LZ4_COMPRESS_DEFAULT   LZ4_compress_limitedOutput
#define	LZ4_VERSION   (LZ4_VERSION_MAJOR * 100 * 100 + LZ4_VERSION_MINOR * 100 + LZ4_VERSION_RELEASE)

Functions
void	advanceInput (roslz4_stream *str, int nbytes)
void	advanceOutput (roslz4_stream *str, int nbytes)
int	bufferToOutput (roslz4_stream *str)
int	decompressBlock (roslz4_stream *str)
void	fillUInt32 (roslz4_stream *str, uint32_t *dest_val, int *offset)
int	inputToBuffer (roslz4_stream *str)
int	min (int a, int b)
int	processHeader (roslz4_stream *str)
int	readBlock (roslz4_stream *str)
int	readBlockSize (roslz4_stream *str)
int	readChecksum (roslz4_stream *str)
uint32_t	readUInt32 (unsigned char *buffer)
int	roslz4_blockSizeFromIndex (int block_id)
int	roslz4_buffToBuffCompress (char *input, unsigned int input_size, char *output, unsigned int *output_size, int block_size_id)
int	roslz4_buffToBuffDecompress (char *input, unsigned int input_size, char *output, unsigned int *output_size)
int	roslz4_compress (roslz4_stream *str, int action)
void	roslz4_compressEnd (roslz4_stream *str)
int	roslz4_compressStart (roslz4_stream *str, int block_size_id)
int	roslz4_decompress (roslz4_stream *str)
void	roslz4_decompressEnd (roslz4_stream *str)
int	roslz4_decompressStart (roslz4_stream *str)
int	streamResizeBuffer (roslz4_stream *str, int block_size_id)
int	streamStateAlloc (roslz4_stream *str)
void	streamStateFree (roslz4_stream *str)
int	writeEOS (roslz4_stream *str)
int	writeHeader (roslz4_stream *str)
void	writeUInt32 (unsigned char *buffer, uint32_t val)

Variables
const uint8_t	k1Bits = 0x01
const uint8_t	k2Bits = 0x03
const uint8_t	k3Bits = 0x07
const uint8_t	k4Bits = 0x0F
const uint8_t	k8Bits = 0xFF
const uint32_t	kEndOfStream = 0x00000000
const uint32_t	kMagicNumber = 0x184D2204

Macro Definition Documentation

DEBUG

#define DEBUG

(

...

)

Definition at line 47 of file lz4s.c.

LZ4_COMPRESS_DEFAULT

#define LZ4_COMPRESS_DEFAULT   LZ4_compress_limitedOutput

Definition at line 57 of file lz4s.c.

LZ4_VERSION

#define LZ4_VERSION   (LZ4_VERSION_MAJOR * 100 * 100 + LZ4_VERSION_MINOR * 100 + LZ4_VERSION_RELEASE)

Definition at line 53 of file lz4s.c.

Function Documentation

advanceInput()

void advanceInput	(	roslz4_stream *	str,
		int	nbytes
	)

Definition at line 116 of file lz4s.c.

advanceOutput()

void advanceOutput	(	roslz4_stream *	str,
		int	nbytes
	)

Definition at line 122 of file lz4s.c.

bufferToOutput()

int bufferToOutput

(

roslz4_stream *

str

)

Definition at line 182 of file lz4s.c.

decompressBlock()

int decompressBlock

(

roslz4_stream *

str

)

Definition at line 489 of file lz4s.c.

fillUInt32()

void fillUInt32	(	roslz4_stream *	str,
		uint32_t *	dest_val,
		int *	offset
	)

Definition at line 128 of file lz4s.c.

inputToBuffer()

int inputToBuffer

(

roslz4_stream *

str

)

Definition at line 226 of file lz4s.c.

min()

int min	(	int	a,
		int	b
	)

Definition at line 84 of file lz4s.c.

processHeader()

int processHeader

(

roslz4_stream *

str

)

Definition at line 378 of file lz4s.c.

readBlock()

int readBlock

(

roslz4_stream *

str

)

Definition at line 473 of file lz4s.c.

readBlockSize()

int readBlockSize

(

roslz4_stream *

str

)

Definition at line 453 of file lz4s.c.

readChecksum()

int readChecksum

(

roslz4_stream *

str

)

Definition at line 531 of file lz4s.c.

readUInt32()

uint32_t readUInt32

(

unsigned char *

buffer

)

Definition at line 71 of file lz4s.c.

roslz4_blockSizeFromIndex()

int roslz4_blockSizeFromIndex

(

int

block_id

)

Definition at line 319 of file lz4s.c.

roslz4_buffToBuffCompress()

int roslz4_buffToBuffCompress	(	char *	input,
		unsigned int	input_size,
		char *	output,
		unsigned int *	output_size,
		int	block_size_id
	)

Definition at line 585 of file lz4s.c.

roslz4_buffToBuffDecompress()

int roslz4_buffToBuffDecompress	(	char *	input,
		unsigned int	input_size,
		char *	output,
		unsigned int *	output_size
	)

Definition at line 619 of file lz4s.c.

roslz4_compress()

int roslz4_compress	(	roslz4_stream *	str,
		int	action
	)

Definition at line 329 of file lz4s.c.

roslz4_compressEnd()

void roslz4_compressEnd

(

roslz4_stream *

str

)

Definition at line 365 of file lz4s.c.

roslz4_compressStart()

int roslz4_compressStart	(	roslz4_stream *	str,
		int	block_size_id
	)

Definition at line 323 of file lz4s.c.

roslz4_decompress()

int roslz4_decompress

(

roslz4_stream *

str

)

Definition at line 548 of file lz4s.c.

roslz4_decompressEnd()

void roslz4_decompressEnd

(

roslz4_stream *

str

)

Definition at line 579 of file lz4s.c.

roslz4_decompressStart()

int roslz4_decompressStart

(

roslz4_stream *

str

)

Definition at line 371 of file lz4s.c.

streamResizeBuffer()

int streamResizeBuffer	(	roslz4_stream *	str,
		int	block_size_id
	)

Definition at line 289 of file lz4s.c.

streamStateAlloc()

int streamStateAlloc

(

roslz4_stream *

str

)

Definition at line 247 of file lz4s.c.

streamStateFree()

void streamStateFree

(

roslz4_stream *

str

)

Definition at line 305 of file lz4s.c.

writeEOS()

int writeEOS

(

roslz4_stream *

str

)

Definition at line 161 of file lz4s.c.

writeHeader()

int writeHeader

(

roslz4_stream *

str

)

Definition at line 136 of file lz4s.c.

writeUInt32()

void writeUInt32	(	unsigned char *	buffer,
		uint32_t	val
	)

Definition at line 76 of file lz4s.c.

Variable Documentation

k1Bits

const uint8_t k1Bits = 0x01

Definition at line 65 of file lz4s.c.

k2Bits

const uint8_t k2Bits = 0x03

Definition at line 66 of file lz4s.c.

k3Bits

const uint8_t k3Bits = 0x07

Definition at line 67 of file lz4s.c.

k4Bits

const uint8_t k4Bits = 0x0F

Definition at line 68 of file lz4s.c.

k8Bits

const uint8_t k8Bits = 0xFF

Definition at line 69 of file lz4s.c.

kEndOfStream

const uint32_t kEndOfStream = 0x00000000

Definition at line 62 of file lz4s.c.

kMagicNumber

const uint32_t kMagicNumber = 0x184D2204

Definition at line 61 of file lz4s.c.