%B

          --- old/usr/src/uts/common/fs/zfs/sys/zio_compress.h
          +++ new/usr/src/uts/common/fs/zfs/sys/zio_compress.h

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the

  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  
  22   22  /*
  23   23   * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
  24   24   * Use is subject to license terms.
  25   25   */
       26 +/*
       27 + * Copyright (c) 2013 by Saso Kiselkov. All rights reserved.
       28 + */
  26   29  
  27   30  #ifndef _SYS_ZIO_COMPRESS_H
  28   31  #define _SYS_ZIO_COMPRESS_H
  29   32  
  30   33  #include <sys/zio.h>
  31   34  
  32   35  #ifdef  __cplusplus
  33   36  extern "C" {
  34   37  #endif
  35   38  

  36   39  /*
  37   40   * Common signature for all zio compress/decompress functions.
  38   41   */
  39   42  typedef size_t zio_compress_func_t(void *src, void *dst,
  40   43      size_t s_len, size_t d_len, int);
  41   44  typedef int zio_decompress_func_t(void *src, void *dst,
  42   45      size_t s_len, size_t d_len, int);
  43   46  
  44   47  /*
  45   48   * Information about each compression function.
  46   49   */
  47   50  typedef struct zio_compress_info {
  48   51          zio_compress_func_t     *ci_compress;   /* compression function */
  49   52          zio_decompress_func_t   *ci_decompress; /* decompression function */
  50   53          int                     ci_level;       /* level parameter */
  51   54          char                    *ci_name;       /* algorithm name */
  52   55  } zio_compress_info_t;
  53   56  
  54   57  extern zio_compress_info_t zio_compress_table[ZIO_COMPRESS_FUNCTIONS];
  55   58  
  56   59  /*
  57   60   * Compression routines.
  58   61   */
  59   62  extern size_t lzjb_compress(void *src, void *dst, size_t s_len, size_t d_len,
  60   63      int level);

  61   64  extern int lzjb_decompress(void *src, void *dst, size_t s_len, size_t d_len,
  62   65      int level);
  63   66  extern size_t gzip_compress(void *src, void *dst, size_t s_len, size_t d_len,
  64   67      int level);
  65   68  extern int gzip_decompress(void *src, void *dst, size_t s_len, size_t d_len,
  66   69      int level);
  67   70  extern size_t zle_compress(void *src, void *dst, size_t s_len, size_t d_len,
  68   71      int level);
  69   72  extern int zle_decompress(void *src, void *dst, size_t s_len, size_t d_len,
  70   73      int level);
       74 +extern size_t lz4_compress(void *src, void *dst, size_t s_len, size_t d_len,
       75 +    int level);
       76 +extern int lz4_decompress(void *src, void *dst, size_t s_len, size_t d_len,
       77 +    int level);
  71   78  
  72   79  /*
  73   80   * Compress and decompress data if necessary.
  74   81   */
  75   82  extern size_t zio_compress_data(enum zio_compress c, void *src, void *dst,
  76   83      size_t s_len);
  77   84  extern int zio_decompress_data(enum zio_compress c, void *src, void *dst,
  78   85      size_t s_len, size_t d_len);
  79   86  
  80   87  #ifdef  __cplusplus
  81   88  }
  82   89  #endif
  83   90  
  84   91  #endif  /* _SYS_ZIO_COMPRESS_H */
    

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