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---
tbzlib.h (5924B)
---
1 /*
2 * THIS FILE IS NOT IDENTICAL TO THE ORIGINAL
3 * FROM THE BZIP2 DISTRIBUTION.
4 *
5 * It has been modified, mainly to break the library
6 * into smaller pieces.
7 *
8 * Russ Cox
9 * rsc@plan9.bell-labs.com
10 * July 2000
11 */
12
13
14 /*-------------------------------------------------------------*/
15 /*--- Public header file for the library. ---*/
16 /*--- bzlib.h ---*/
17 /*-------------------------------------------------------------*/
18
19 /*--
20 This file is a part of bzip2 and/or libbzip2, a program and
21 library for lossless, block-sorting data compression.
22
23 Copyright (C) 1996-2000 Julian R Seward. All rights reserved.
24
25 Redistribution and use in source and binary forms, with or without
26 modification, are permitted provided that the following conditions
27 are met:
28
29 1. Redistributions of source code must retain the above copyright
30 notice, this list of conditions and the following disclaimer.
31
32 2. The origin of this software must not be misrepresented; you must
33 not claim that you wrote the original software. If you use this
34 software in a product, an acknowledgment in the product
35 documentation would be appreciated but is not required.
36
37 3. Altered source versions must be plainly marked as such, and must
38 not be misrepresented as being the original software.
39
40 4. The name of the author may not be used to endorse or promote
41 products derived from this software without specific prior written
42 permission.
43
44 THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
45 OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
46 WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
48 DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
50 GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
51 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
52 WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
53 NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
54 SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
55
56 Julian Seward, Cambridge, UK.
57 jseward@acm.org
58 bzip2/libbzip2 version 1.0 of 21 March 2000
59
60 This program is based on (at least) the work of:
61 Mike Burrows
62 David Wheeler
63 Peter Fenwick
64 Alistair Moffat
65 Radford Neal
66 Ian H. Witten
67 Robert Sedgewick
68 Jon L. Bentley
69
70 For more information on these sources, see the manual.
71 --*/
72
73 #ifndef _BZLIB_H
74 #define _BZLIB_H
75
76 #ifdef __cplusplus
77 extern "C" {
78 #endif
79
80 #define BZ_RUN 0
81 #define BZ_FLUSH 1
82 #define BZ_FINISH 2
83
84 #define BZ_OK 0
85 #define BZ_RUN_OK 1
86 #define BZ_FLUSH_OK 2
87 #define BZ_FINISH_OK 3
88 #define BZ_STREAM_END 4
89 #define BZ_SEQUENCE_ERROR (-1)
90 #define BZ_PARAM_ERROR (-2)
91 #define BZ_MEM_ERROR (-3)
92 #define BZ_DATA_ERROR (-4)
93 #define BZ_DATA_ERROR_MAGIC (-5)
94 #define BZ_IO_ERROR (-6)
95 #define BZ_UNEXPECTED_EOF (-7)
96 #define BZ_OUTBUFF_FULL (-8)
97 #define BZ_CONFIG_ERROR (-9)
98
99 typedef
100 struct {
101 char *next_in;
102 unsigned int avail_in;
103 unsigned int total_in_lo32;
104 unsigned int total_in_hi32;
105
106 char *next_out;
107 unsigned int avail_out;
108 unsigned int total_out_lo32;
109 unsigned int total_out_hi32;
110
111 void *state;
112
113 void *(*bzalloc)(void *,int,int);
114 void (*bzfree)(void *,void *);
115 void *opaque;
116 }
117 bz_stream;
118
119
120 #ifndef BZ_IMPORT
121 #define BZ_EXPORT
122 #endif
123
124 #ifdef _WIN32
125 # include <stdio.h>
126 # include <windows.h>
127 # ifdef small
128 /* windows.h define small to char */
129 # undef small
130 # endif
131 # ifdef BZ_EXPORT
132 # define BZ_API(func) WINAPI func
133 # define BZ_EXTERN extern
134 # else
135 /* import windows dll dynamically */
136 # define BZ_API(func) (WINAPI * func)
137 # define BZ_EXTERN
138 # endif
139 #else
140 # define BZ_API(func) func
141 # define BZ_EXTERN extern
142 #endif
143
144
145 /*-- Core (low-level) library functions --*/
146
147 BZ_EXTERN int BZ_API(BZ2_bzCompressInit) (
148 bz_stream* strm,
149 int blockSize100k,
150 int verbosity,
151 int workFactor
152 );
153
154 BZ_EXTERN int BZ_API(BZ2_bzCompress) (
155 bz_stream* strm,
156 int action
157 );
158
159 BZ_EXTERN int BZ_API(BZ2_bzCompressEnd) (
160 bz_stream* strm
161 );
162
163 BZ_EXTERN int BZ_API(BZ2_bzDecompressInit) (
164 bz_stream *strm,
165 int verbosity,
166 int small
167 );
168
169 BZ_EXTERN int BZ_API(BZ2_bzDecompress) (
170 bz_stream* strm
171 );
172
173 BZ_EXTERN int BZ_API(BZ2_bzDecompressEnd) (
174 bz_stream *strm
175 );
176
177
178
179 /*-- Utility functions --*/
180
181 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffCompress) (
182 char* dest,
183 unsigned int* destLen,
184 char* source,
185 unsigned int sourceLen,
186 int blockSize100k,
187 int verbosity,
188 int workFactor
189 );
190
191 BZ_EXTERN int BZ_API(BZ2_bzBuffToBuffDecompress) (
192 char* dest,
193 unsigned int* destLen,
194 char* source,
195 unsigned int sourceLen,
196 int small,
197 int verbosity
198 );
199
200
201 /*--
202 Code contributed by Yoshioka Tsuneo
203 (QWF00133@niftyserve.or.jp/tsuneo-y@is.aist-nara.ac.jp),
204 to support better zlib compatibility.
205 This code is not _officially_ part of libbzip2 (yet);
206 I haven't tested it, documented it, or considered the
207 threading-safeness of it.
208 If this code breaks, please contact both Yoshioka and me.
209 --*/
210
211 BZ_EXTERN const char * BZ_API(BZ2_bzlibVersion) (
212 void
213 );
214
215 #ifdef __cplusplus
216 }
217 #endif
218
219 #endif
220
221 /*-------------------------------------------------------------*/
222 /*--- end bzlib.h ---*/
223 /*-------------------------------------------------------------*/