1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _SYS_ZIO_COMPRESS_H 28 #define _SYS_ZIO_COMPRESS_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/zio.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* 39 * Common signature for all zio compress/decompress functions. 40 */ 41 typedef size_t zio_compress_func_t(void *src, void *dst, 42 size_t s_len, size_t d_len); 43 typedef int zio_decompress_func_t(void *src, void *dst, 44 size_t s_len, size_t d_len); 45 46 /* 47 * Information about each compression function. 48 */ 49 typedef struct zio_compress_info { 50 zio_compress_func_t *ci_compress; 51 zio_decompress_func_t *ci_decompress; 52 char *ci_name; 53 } zio_compress_info_t; 54 55 extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS]; 56 57 /* 58 * Compression routines. 59 */ 60 extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len); 61 extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len); 62 63 /* 64 * Compress and decompress data if necessary. 65 */ 66 extern int zio_compress_data(int cpfunc, void *src, uint64_t srcsize, 67 void **destp, uint64_t *destsizep, uint64_t *destbufsizep); 68 extern int zio_decompress_data(int cpfunc, void *src, uint64_t srcsize, 69 void *dest, uint64_t destsize); 70 71 #ifdef __cplusplus 72 } 73 #endif 74 75 #endif /* _SYS_ZIO_COMPRESS_H */ 76