1fa9e4066Sahrens /* 2fa9e4066Sahrens * CDDL HEADER START 3fa9e4066Sahrens * 4fa9e4066Sahrens * The contents of this file are subject to the terms of the 5c9431fa1Sahl * Common Development and Distribution License (the "License"). 6c9431fa1Sahl * You may not use this file except in compliance with the License. 7fa9e4066Sahrens * 8fa9e4066Sahrens * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fa9e4066Sahrens * or http://www.opensolaris.org/os/licensing. 10fa9e4066Sahrens * See the License for the specific language governing permissions 11fa9e4066Sahrens * and limitations under the License. 12fa9e4066Sahrens * 13fa9e4066Sahrens * When distributing Covered Code, include this CDDL HEADER in each 14fa9e4066Sahrens * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fa9e4066Sahrens * If applicable, add the following below this CDDL HEADER, with the 16fa9e4066Sahrens * fields enclosed by brackets "[]" replaced with your own identifying 17fa9e4066Sahrens * information: Portions Copyright [yyyy] [name of copyright owner] 18fa9e4066Sahrens * 19fa9e4066Sahrens * CDDL HEADER END 20fa9e4066Sahrens */ 21c9431fa1Sahl 22fa9e4066Sahrens /* 23b24ab676SJeff Bonwick * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 24fa9e4066Sahrens * Use is subject to license terms. 25fa9e4066Sahrens */ 26a6f561b4SSašo Kiselkov /* 27a6f561b4SSašo Kiselkov * Copyright (c) 2013 by Saso Kiselkov. All rights reserved. 28*5602294fSDan Kimmel * Copyright (c) 2015 by Delphix. All rights reserved. 29a6f561b4SSašo Kiselkov */ 30fa9e4066Sahrens 31fa9e4066Sahrens #ifndef _SYS_ZIO_COMPRESS_H 32fa9e4066Sahrens #define _SYS_ZIO_COMPRESS_H 33fa9e4066Sahrens 34fa9e4066Sahrens #ifdef __cplusplus 35fa9e4066Sahrens extern "C" { 36fa9e4066Sahrens #endif 37fa9e4066Sahrens 38*5602294fSDan Kimmel enum zio_compress { 39*5602294fSDan Kimmel ZIO_COMPRESS_INHERIT = 0, 40*5602294fSDan Kimmel ZIO_COMPRESS_ON, 41*5602294fSDan Kimmel ZIO_COMPRESS_OFF, 42*5602294fSDan Kimmel ZIO_COMPRESS_LZJB, 43*5602294fSDan Kimmel ZIO_COMPRESS_EMPTY, 44*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_1, 45*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_2, 46*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_3, 47*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_4, 48*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_5, 49*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_6, 50*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_7, 51*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_8, 52*5602294fSDan Kimmel ZIO_COMPRESS_GZIP_9, 53*5602294fSDan Kimmel ZIO_COMPRESS_ZLE, 54*5602294fSDan Kimmel ZIO_COMPRESS_LZ4, 55*5602294fSDan Kimmel ZIO_COMPRESS_FUNCTIONS 56*5602294fSDan Kimmel }; 57*5602294fSDan Kimmel 58f7170741SWill Andrews /* Common signature for all zio compress functions. */ 59fa9e4066Sahrens typedef size_t zio_compress_func_t(void *src, void *dst, 60c9431fa1Sahl size_t s_len, size_t d_len, int); 61f7170741SWill Andrews /* Common signature for all zio decompress functions. */ 62fa9e4066Sahrens typedef int zio_decompress_func_t(void *src, void *dst, 63c9431fa1Sahl size_t s_len, size_t d_len, int); 64fa9e4066Sahrens 65fa9e4066Sahrens /* 66fa9e4066Sahrens * Information about each compression function. 67fa9e4066Sahrens */ 68fa9e4066Sahrens typedef struct zio_compress_info { 69c9431fa1Sahl zio_compress_func_t *ci_compress; /* compression function */ 70c9431fa1Sahl zio_decompress_func_t *ci_decompress; /* decompression function */ 71c9431fa1Sahl int ci_level; /* level parameter */ 72c9431fa1Sahl char *ci_name; /* algorithm name */ 73fa9e4066Sahrens } zio_compress_info_t; 74fa9e4066Sahrens 75fa9e4066Sahrens extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS]; 76fa9e4066Sahrens 77fa9e4066Sahrens /* 78fa9e4066Sahrens * Compression routines. 79fa9e4066Sahrens */ 80c9431fa1Sahl extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len, 81c9431fa1Sahl int level); 82c9431fa1Sahl extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len, 83c9431fa1Sahl int level); 84c9431fa1Sahl extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len, 85c9431fa1Sahl int level); 86c9431fa1Sahl extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len, 87c9431fa1Sahl int level); 88b24ab676SJeff Bonwick extern size_t zle_compress(void *src, void *dst, size_t s_len, size_t d_len, 89b24ab676SJeff Bonwick int level); 90b24ab676SJeff Bonwick extern int zle_decompress(void *src, void *dst, size_t s_len, size_t d_len, 91b24ab676SJeff Bonwick int level); 92a6f561b4SSašo Kiselkov extern size_t lz4_compress(void *src, void *dst, size_t s_len, size_t d_len, 93a6f561b4SSašo Kiselkov int level); 94a6f561b4SSašo Kiselkov extern int lz4_decompress(void *src, void *dst, size_t s_len, size_t d_len, 95a6f561b4SSašo Kiselkov int level); 96fa9e4066Sahrens 97fa9e4066Sahrens /* 98fa9e4066Sahrens * Compress and decompress data if necessary. 99fa9e4066Sahrens */ 100b24ab676SJeff Bonwick extern size_t zio_compress_data(enum zio_compress c, void *src, void *dst, 101b24ab676SJeff Bonwick size_t s_len); 102b24ab676SJeff Bonwick extern int zio_decompress_data(enum zio_compress c, void *src, void *dst, 103b24ab676SJeff Bonwick size_t s_len, size_t d_len); 104fa9e4066Sahrens 105fa9e4066Sahrens #ifdef __cplusplus 106fa9e4066Sahrens } 107fa9e4066Sahrens #endif 108fa9e4066Sahrens 109fa9e4066Sahrens #endif /* _SYS_ZIO_COMPRESS_H */ 110