Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/lib/libz/zconf.h
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1 /* $NetBSD: zconf.h,v 1.5 2003/03/25 22:48:45 mycroft Exp $ */ 2 3 /* zconf.h -- configuration of the zlib compression library 4 * Copyright (C) 1995-2002 Jean-loup Gailly. 5 * For conditions of distribution and use, see copyright notice in zlib.h 6 */ 7 8 /* @(#) $Id: zconf.h,v 1.5 2003/03/25 22:48:45 mycroft Exp $ */ 9 10 #ifndef _ZCONF_H 11 #define _ZCONF_H 12 13 /* 14 * Warning: This file pollutes the user's namespace with: 15 * Byte Bytef EXPORT FAR OF STDC 16 * charf intf uInt uIntf uLong uLonf 17 * Programs using this library appear to expect those... 18 */ 19 20 #include <sys/types.h> 21 22 /* 23 * If you *really* need a unique prefix for all types and library functions, 24 * compile with -DZ_PREFIX. The "standard" zlib should be compiled without it. 25 */ 26 #ifdef Z_PREFIX 27 # define deflateInit_ z_deflateInit_ 28 # define deflate z_deflate 29 # define deflateEnd z_deflateEnd 30 # define inflateInit_ z_inflateInit_ 31 # define inflate z_inflate 32 # define inflateEnd z_inflateEnd 33 # define deflateInit2_ z_deflateInit2_ 34 # define deflateSetDictionary z_deflateSetDictionary 35 # define deflateCopy z_deflateCopy 36 # define deflateReset z_deflateReset 37 # define deflateParams z_deflateParams 38 # define inflateInit2_ z_inflateInit2_ 39 # define inflateReset z_inflateReset 40 # define compress z_compress 41 # define compress2 z_compress2 42 # define uncompress z_uncompress 43 # define crc32 z_crc32 44 45 # define Byte z_Byte 46 # define uInt z_uInt 47 # define uLong z_uLong 48 # define Bytef z_Bytef 49 # define charf z_charf 50 # define intf z_intf 51 # define uIntf z_uIntf 52 # define uLongf z_uLongf 53 # define voidpf z_voidpf 54 # define voidp z_voidp 55 #endif 56 57 #ifndef __32BIT__ 58 /* Don't be alarmed; this just means we have at least 32-bits */ 59 # define __32BIT__ 60 #endif 61 62 /* 63 * Compile with -DMAXSEG_64K if the alloc function cannot allocate more 64 * than 64k bytes at a time (needed on systems with 16-bit int). 65 */ 66 #if defined(MSDOS) && !defined(__32BIT__) 67 # define MAXSEG_64K 68 #endif 69 70 #if 0 71 /* XXX: Are there machines where we should define this? m68k? */ 72 # define UNALIGNED_OK 73 #endif 74 75 #if (defined(__STDC__) || defined(__cplusplus)) && !defined(STDC) 76 /* XXX: Look out - this is used in zutil.h and elsewhere... */ 77 # define STDC 78 #endif 79 #if defined(__STDC__) || defined(__cplusplus) || defined(__OS2__) 80 # ifndef STDC 81 # define STDC 82 # endif 83 #endif 84 85 #ifndef STDC 86 # ifndef const 87 # define const 88 # endif 89 #endif 90 91 /* Some Mac compilers merge all .h files incorrectly: */ 92 #if defined(__MWERKS__) || defined(applec) ||defined(THINK_C) ||defined(__SC__) 93 # define NO_DUMMY_DECL 94 #endif 95 96 /* Old Borland C incorrectly complains about missing returns: */ 97 #if defined(__BORLANDC__) && (__BORLANDC__ < 0x500) 98 # define NEED_DUMMY_RETURN 99 #endif 100 101 102 /* Maximum value for memLevel in deflateInit2 */ 103 #ifndef MAX_MEM_LEVEL 104 # ifdef MAXSEG_64K 105 # define MAX_MEM_LEVEL 8 106 # else 107 # define MAX_MEM_LEVEL 9 108 # endif 109 #endif 110 111 /* Maximum value for windowBits in deflateInit2 and inflateInit2. 112 * WARNING: reducing MAX_WBITS makes minigzip unable to extract .gz files 113 * created by gzip. (Files created by minigzip can still be extracted by 114 * gzip.) 115 */ 116 #ifndef MAX_WBITS 117 # define MAX_WBITS 15 /* 32K LZ77 window */ 118 #endif 119 120 /* The memory requirements for deflate are (in bytes): 121 (1 << (windowBits+2)) + (1 << (memLevel+9)) 122 that is: 128K for windowBits=15 + 128K for memLevel = 8 (default values) 123 plus a few kilobytes for small objects. For example, if you want to reduce 124 the default memory requirements from 256K to 128K, compile with 125 make CFLAGS="-O -DMAX_WBITS=14 -DMAX_MEM_LEVEL=7" 126 Of course this will generally degrade compression (there's no free lunch). 127 128 The memory requirements for inflate are (in bytes) 1 << windowBits 129 that is, 32K for windowBits=15 (default value) plus a few kilobytes 130 for small objects. 131 */ 132 133 /* Type declarations */ 134 135 #ifndef __P /* function prototypes */ 136 # ifdef STDC 137 # define __P(args) args 138 # else 139 # define __P(args) () 140 # endif 141 #endif 142 143 /* The following definitions for FAR are needed only for MSDOS mixed 144 * model programming (small or medium model with some far allocations). 145 * This was tested only with MSC; for other MSDOS compilers you may have 146 * to define NO_MEMCPY in zutil.h. If you don't need the mixed model, 147 * just define FAR to be empty. 148 */ 149 #if (defined(M_I86SM) || defined(M_I86MM)) && !defined(__32BIT__) 150 /* MSC small or medium model */ 151 # define SMALL_MEDIUM 152 # ifdef _MSC_VER 153 # define FAR _far 154 # else 155 # define FAR far 156 # endif 157 #endif 158 #if defined(__BORLANDC__) && (defined(__SMALL__) || defined(__MEDIUM__)) 159 # ifndef __32BIT__ 160 # define SMALL_MEDIUM 161 # define FAR _far 162 # endif 163 #endif 164 165 /* Compile with -DZLIB_DLL for Windows DLL support */ 166 #if defined(ZLIB_DLL) 167 # if defined(_WINDOWS) || defined(WINDOWS) 168 # ifdef FAR 169 # undef FAR 170 # endif 171 # include <windows.h> 172 # define ZEXPORT WINAPI 173 # ifdef WIN32 174 # define ZEXPORTVA WINAPIV 175 # else 176 # define ZEXPORTVA FAR _cdecl _export 177 # endif 178 # endif 179 # if defined (__BORLANDC__) 180 # if (__BORLANDC__ >= 0x0500) && defined (WIN32) 181 # include <windows.h> 182 # define ZEXPORT __declspec(dllexport) WINAPI 183 # define ZEXPORTRVA __declspec(dllexport) WINAPIV 184 # else 185 # if defined (_Windows) && defined (__DLL__) 186 # define ZEXPORT _export 187 # define ZEXPORTVA _export 188 # endif 189 # endif 190 # endif 191 #endif 192 193 #if defined (__BEOS__) 194 # if defined (ZLIB_DLL) 195 # define ZEXTERN extern __declspec(dllexport) 196 # else 197 # define ZEXTERN extern __declspec(dllimport) 198 # endif 199 #endif 200 201 #ifndef ZEXPORT 202 # define ZEXPORT 203 #endif 204 #ifndef ZEXPORTVA 205 # define ZEXPORTVA 206 #endif 207 #ifndef ZEXTERN 208 # define ZEXTERN extern 209 #endif 210 211 #ifndef FAR 212 # define FAR 213 #endif 214 215 #if !defined(MACOS) && !defined(TARGET_OS_MAC) 216 typedef unsigned char Byte; /* 8 bits */ 217 #endif 218 typedef unsigned int uInt; /* 16 bits or more */ 219 typedef unsigned long uLong; /* 32 bits or more */ 220 221 #ifdef SMALL_MEDIUM 222 /* Borland C/C++ and some old MSC versions ignore FAR inside typedef */ 223 # define Bytef Byte FAR 224 #else 225 typedef Byte FAR Bytef; 226 #endif 227 typedef char FAR charf; 228 typedef int FAR intf; 229 typedef uInt FAR uIntf; 230 typedef uLong FAR uLongf; 231 232 #ifdef STDC 233 typedef void FAR *voidpf; 234 typedef void *voidp; 235 #else 236 typedef Byte FAR *voidpf; 237 typedef Byte *voidp; 238 #endif 239 240 #if defined(HAVE_UNISTD_H) 241 # include <sys/types.h> /* for off_t */ 242 # include <unistd.h> /* for SEEK_* and off_t */ 243 # define z_off_t off_t 244 #endif 245 #ifndef SEEK_SET 246 # define SEEK_SET 0 /* Seek from beginning of file. */ 247 # define SEEK_CUR 1 /* Seek from current position. */ 248 # define SEEK_END 2 /* Set file pointer to EOF plus "offset" */ 249 #endif 250 #ifndef z_off_t 251 # define z_off_t long 252 #endif 253 254 /* MVS linker does not support external names larger than 8 bytes */ 255 #if defined(__MVS__) 256 # pragma map(deflateInit_,"DEIN") 257 # pragma map(deflateInit2_,"DEIN2") 258 # pragma map(deflateEnd,"DEEND") 259 # pragma map(inflateInit_,"ININ") 260 # pragma map(inflateInit2_,"ININ2") 261 # pragma map(inflateEnd,"INEND") 262 # pragma map(inflateSync,"INSY") 263 # pragma map(inflateSetDictionary,"INSEDI") 264 # pragma map(inflate_blocks,"INBL") 265 # pragma map(inflate_blocks_new,"INBLNE") 266 # pragma map(inflate_blocks_free,"INBLFR") 267 # pragma map(inflate_blocks_reset,"INBLRE") 268 # pragma map(inflate_codes_free,"INCOFR") 269 # pragma map(inflate_codes,"INCO") 270 # pragma map(inflate_fast,"INFA") 271 # pragma map(inflate_flush,"INFLU") 272 # pragma map(inflate_mask,"INMA") 273 # pragma map(inflate_set_dictionary,"INSEDI2") 274 # pragma map(inflate_copyright,"INCOPY") 275 # pragma map(inflate_trees_bits,"INTRBI") 276 # pragma map(inflate_trees_dynamic,"INTRDY") 277 # pragma map(inflate_trees_fixed,"INTRFI") 278 # pragma map(inflate_trees_free,"INTRFR") 279 #endif 280 281 #endif /* _ZCONF_H */
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