compiler/libbz2/bzlib.h

   1
   2 /*-------------------------------------------------------------*/
   3 /*--- Public header file for the library.                   ---*/
   4 /*---                                               bzlib.h ---*/
   5 /*-------------------------------------------------------------*/
   6
   7 /*--
   8   This file is a part of bzip2 and/or libbzip2, a program and
   9   library for lossless, block-sorting data compression.
  10
  11   Copyright (C) 1996-2002 Julian R Seward.  All rights reserved.
  12
  13   Redistribution and use in source and binary forms, with or without
  14   modification, are permitted provided that the following conditions
  15   are met:
  16
  17   1. Redistributions of source code must retain the above copyright
  18      notice, this list of conditions and the following disclaimer.
  19
  20   2. The origin of this software must not be misrepresented; you must
  21      not claim that you wrote the original software.  If you use this
  22      software in a product, an acknowledgment in the product
  23      documentation would be appreciated but is not required.
  24
  25   3. Altered source versions must be plainly marked as such, and must
  26      not be misrepresented as being the original software.
  27
  28   4. The name of the author may not be used to endorse or promote
  29      products derived from this software without specific prior written
  30      permission.
  31
  32   THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
  33   OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  34   WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  35   ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
  36   DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  37   DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  38   GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  39   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
  40   WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
  41   NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  42   SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  43
  44   Julian Seward, Cambridge, UK.
  45   jseward@acm.org
  46   bzip2/libbzip2 version 1.0 of 21 March 2000
  47
  48   This program is based on (at least) the work of:
  49      Mike Burrows
  50      David Wheeler
  51      Peter Fenwick
  52      Alistair Moffat
  53      Radford Neal
  54      Ian H. Witten
  55      Robert Sedgewick
  56      Jon L. Bentley
  57
  58   For more information on these sources, see the manual.
  59 --*/
  60
  61
  62 #ifndef _BZLIB_H
  63 #define _BZLIB_H
  64
  65 #ifdef __cplusplus
  66 extern "C" {
  67 #endif
  68
  69 #define BZ_RUN               0
  70 #define BZ_FLUSH             1
  71 #define BZ_FINISH            2
  72
  73 #define BZ_OK                0
  74 #define BZ_RUN_OK            1
  75 #define BZ_FLUSH_OK          2
  76 #define BZ_FINISH_OK         3
  77 #define BZ_STREAM_END        4
  78 #define BZ_SEQUENCE_ERROR    (-1)
  79 #define BZ_PARAM_ERROR       (-2)
  80 #define BZ_MEM_ERROR         (-3)
  81 #define BZ_DATA_ERROR        (-4)
  82 #define BZ_DATA_ERROR_MAGIC  (-5)
  83 #define BZ_IO_ERROR          (-6)
  84 #define BZ_UNEXPECTED_EOF    (-7)
  85 #define BZ_OUTBUFF_FULL      (-8)
  86 #define BZ_CONFIG_ERROR      (-9)
  87
  88 typedef
  89    struct {
  90       char *next_in;
  91       unsigned int avail_in;
  92       unsigned int total_in_lo32;
  93       unsigned int total_in_hi32;
  94
  95       char *next_out;
  96       unsigned int avail_out;
  97       unsigned int total_out_lo32;
  98       unsigned int total_out_hi32;
  99
 100       void *state;
 101
 102       void *(*bzalloc)(void *,int,int);
 103       void (*bzfree)(void *,void *);
 104       void *opaque;
 105    }
 106    bz_stream;
 107
 108
 109 #ifndef BZ_IMPORT
 110 #define BZ_EXPORT
 111 #endif
 112
 113 #ifndef BZ_NO_STDIO
 114 /* Need a definitition for FILE */
 115 #include <stdio.h>
 116 #endif
 117
 118 #ifdef _WIN32
 119 #   include <windows.h>
 120 #   ifdef small
 121       /* windows.h define small to char */
 122 #      undef small
 123 #   endif
 124 #   ifdef BZ_EXPORT
 125 #   define BZ_API(func) WINAPI func
 126 #   define BZ_EXTERN extern
 127 #   else
 128    /* import windows dll dynamically */
 129 #   define BZ_API(func) (WINAPI * func)
 130 #   define BZ_EXTERN
 131 #   endif
 132 #else
 133 #   define BZ_API(func) func
 134 #   define BZ_EXTERN extern
 135 #endif
 136
 137
 138 /*-- Core (low-level) library functions --*/
 139
 140 BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
 141       bz_stream* strm,
 142       int        blockSize100k,
 143       int        verbosity,
 144       int        workFactor
 145    );
 146
 147 BZ_EXTERN int BZ_API(BZ2_bzCompress) (
 148       bz_stream* strm,
 149       int action
 150    );
 151
 152 BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
 153       bz_stream* strm
 154    );
 155
 156 BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
 157       bz_stream *strm,
 158       int       verbosity,
 159       int       small
 160    );
 161
 162 BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
 163       bz_stream* strm
 164    );
 165
 166 BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
 167       bz_stream *strm
 168    );
 169
 170
 171
 172 /*-- High(er) level library functions --*/
 173
 174 #ifndef BZ_NO_STDIO
 175 #define BZ_MAX_UNUSED 5000
 176
 177 typedef void BZFILE;
 178
 179 BZ_EXTERN BZFILE* BZ_API(BZ2_bzReadOpen) (
 180       int*  bzerror,
 181       FILE* f,
 182       int   verbosity,
 183       int   small,
 184       void* unused,
 185       int   nUnused
 186    );
 187
 188 BZ_EXTERN void BZ_API(BZ2_bzReadClose) (
 189       int*    bzerror,
 190       BZFILE* b
 191    );
 192
 193 BZ_EXTERN void BZ_API(BZ2_bzReadGetUnused) (
 194       int*    bzerror,
 195       BZFILE* b,
 196       void**  unused,
 197       int*    nUnused
 198    );
 199
 200 BZ_EXTERN int BZ_API(BZ2_bzRead) (
 201       int*    bzerror,
 202       BZFILE* b,
 203       void*   buf,
 204       int     len
 205    );
 206
 207 BZ_EXTERN BZFILE* BZ_API(BZ2_bzWriteOpen) (
 208       int*  bzerror,
 209       FILE* f,
 210       int   blockSize100k,
 211       int   verbosity,
 212       int   workFactor
 213    );
 214
 215 BZ_EXTERN void BZ_API(BZ2_bzWrite) (
 216       int*    bzerror,
 217       BZFILE* b,
 218       void*   buf,
 219       int     len
 220    );
 221
 222 BZ_EXTERN void BZ_API(BZ2_bzWriteClose) (
 223       int*          bzerror,
 224       BZFILE*       b,
 225       int           abandon,
 226       unsigned int* nbytes_in,
 227       unsigned int* nbytes_out
 228    );
 229
 230 BZ_EXTERN void BZ_API(BZ2_bzWriteClose64) (
 231       int*          bzerror,
 232       BZFILE*       b,
 233       int           abandon,
 234       unsigned int* nbytes_in_lo32,
 235       unsigned int* nbytes_in_hi32,
 236       unsigned int* nbytes_out_lo32,
 237       unsigned int* nbytes_out_hi32
 238    );
 239 #endif
 240
 241
 242 /*-- Utility functions --*/
 243
 244 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
 245       char*         dest,
 246       unsigned int* destLen,
 247       char*         source,
 248       unsigned int  sourceLen,
 249       int           blockSize100k,
 250       int           verbosity,
 251       int           workFactor
 252    );
 253
 254 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
 255       char*         dest,
 256       unsigned int* destLen,
 257       char*         source,
 258       unsigned int  sourceLen,
 259       int           small,
 260       int           verbosity
 261    );
 262
 263
 264 /*--
 265    Code contributed by Yoshioka Tsuneo
 266    (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
 267    to support better zlib compatibility.
 268    This code is not _officially_ part of libbzip2 (yet);
 269    I haven't tested it, documented it, or considered the
 270    threading-safeness of it.
 271    If this code breaks, please contact both Yoshioka and me.
 272 --*/
 273
 274 BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
 275       void
 276    );
 277
 278 #ifndef BZ_NO_STDIO
 279 BZ_EXTERN BZFILE * BZ_API(BZ2_bzopen) (
 280       const char *path,
 281       const char *mode
 282    );
 283
 284 BZ_EXTERN BZFILE * BZ_API(BZ2_bzdopen) (
 285       int        fd,
 286       const char *mode
 287    );
 288
 289 BZ_EXTERN int BZ_API(BZ2_bzread) (
 290       BZFILE* b,
 291       void* buf,
 292       int len
 293    );
 294
 295 BZ_EXTERN int BZ_API(BZ2_bzwrite) (
 296       BZFILE* b,
 297       void*   buf,
 298       int     len
 299    );
 300
 301 BZ_EXTERN int BZ_API(BZ2_bzflush) (
 302       BZFILE* b
 303    );
 304
 305 BZ_EXTERN void BZ_API(BZ2_bzclose) (
 306       BZFILE* b
 307    );
 308
 309 BZ_EXTERN const char * BZ_API(BZ2_bzerror) (
 310       BZFILE *b,
 311       int    *errnum
 312    );
 313 #endif
 314
 315 #ifdef __cplusplus
 316 }
 317 #endif
 318
 319 #endif
 320
 321 /*-------------------------------------------------------------*/
 322 /*--- end                                           bzlib.h ---*/
 323 /*-------------------------------------------------------------*/