95 lines
2.8 KiB
C
95 lines
2.8 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
|
|
/*
|
|
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
|
|
* Use is subject to license terms.
|
|
*/
|
|
|
|
#ifndef _SYS_ZIO_COMPRESS_H
|
|
#define _SYS_ZIO_COMPRESS_H
|
|
|
|
#include <sys/zio.h>
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/*
|
|
* Common signature for all zio compress/decompress functions.
|
|
*/
|
|
typedef size_t zio_compress_func_t(void *src, void *dst,
|
|
size_t s_len, size_t d_len, int);
|
|
typedef int zio_decompress_func_t(void *src, void *dst,
|
|
size_t s_len, size_t d_len, int);
|
|
|
|
/*
|
|
* Information about each compression function.
|
|
*/
|
|
typedef struct zio_compress_info {
|
|
zio_compress_func_t *ci_compress; /* compression function */
|
|
zio_decompress_func_t *ci_decompress; /* decompression function */
|
|
int ci_level; /* level parameter */
|
|
char *ci_name; /* algorithm name */
|
|
} zio_compress_info_t;
|
|
|
|
extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS];
|
|
|
|
/*
|
|
* lz4 compression init & free
|
|
*/
|
|
extern void lz4_init(void);
|
|
extern void lz4_fini(void);
|
|
|
|
/*
|
|
* Compression routines.
|
|
*/
|
|
extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern size_t zle_compress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern int zle_decompress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern size_t lz4_compress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
extern int lz4_decompress(void *src, void *dst, size_t s_len, size_t d_len,
|
|
int level);
|
|
|
|
/*
|
|
* Compress and decompress data if necessary.
|
|
*/
|
|
extern size_t zio_compress_data(enum zio_compress c, void *src, void *dst,
|
|
size_t s_len);
|
|
extern int zio_decompress_data(enum zio_compress c, void *src, void *dst,
|
|
size_t s_len, size_t d_len);
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _SYS_ZIO_COMPRESS_H */
|