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zutil.h
Revision
1.1.1.2 (vendor branch):
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Mon Jul 22 10:46:14 2013 UTC (10 years, 11 months ago) by
misho
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MAIN
CVS tags:
v1_8_8p0,
v1_8_8,
v1_8_7p0,
v1_8_7,
v1_8_5p1,
v1_8_10p3_0,
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1.8.7
1: /* zutil.h -- internal interface and configuration of the compression library
2: * Copyright (C) 1995-2011 Jean-loup Gailly.
3: * For conditions of distribution and use, see copyright notice in zlib.h
4: */
5:
6: /* WARNING: this file should *not* be used by applications. It is
7: part of the implementation of the compression library and is
8: subject to change. Applications should only use zlib.h.
9: */
10:
11: /* @(#) $Id: zutil.h,v 1.1.1.2 2013/07/22 10:46:14 misho Exp $ */
12:
13: #ifndef ZUTIL_H
14: #define ZUTIL_H
15:
16: #if ((__GNUC__-0) * 10 + __GNUC_MINOR__-0 >= 33) && !defined(NO_VIZ)
17: # define ZLIB_INTERNAL __attribute__((visibility ("hidden")))
18: #else
19: # define ZLIB_INTERNAL
20: #endif
21:
22: #include "zlib.h"
23:
24: #if defined(STDC) && !defined(Z_SOLO)
25: # if !(defined(_WIN32_WCE) && defined(_MSC_VER))
26: # include <stddef.h>
27: # endif
28: # include <string.h>
29: # include <stdlib.h>
30: #endif
31:
32: #ifdef Z_SOLO
33: typedef long ptrdiff_t; /* guess -- will be caught if guess is wrong */
34: #endif
35:
36: #ifndef local
37: # define local static
38: #endif
39: /* compile with -Dlocal if your debugger can't find static symbols */
40:
41: typedef unsigned char uch;
42: typedef uch FAR uchf;
43: typedef unsigned short ush;
44: typedef ush FAR ushf;
45: typedef unsigned long ulg;
46:
47: extern const char * const z_errmsg[10]; /* indexed by 2-zlib_error */
48: /* (size given to avoid silly warnings with Visual C++) */
49:
50: #define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]
51:
52: #define ERR_RETURN(strm,err) \
53: return (strm->msg = (char*)ERR_MSG(err), (err))
54: /* To be used only when the state is known to be valid */
55:
56: /* common constants */
57:
58: #ifndef DEF_WBITS
59: # define DEF_WBITS MAX_WBITS
60: #endif
61: /* default windowBits for decompression. MAX_WBITS is for compression only */
62:
63: #if MAX_MEM_LEVEL >= 8
64: # define DEF_MEM_LEVEL 8
65: #else
66: # define DEF_MEM_LEVEL MAX_MEM_LEVEL
67: #endif
68: /* default memLevel */
69:
70: #define STORED_BLOCK 0
71: #define STATIC_TREES 1
72: #define DYN_TREES 2
73: /* The three kinds of block type */
74:
75: #define MIN_MATCH 3
76: #define MAX_MATCH 258
77: /* The minimum and maximum match lengths */
78:
79: #define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */
80:
81: /* target dependencies */
82:
83: #if defined(MSDOS) || (defined(WINDOWS) && !defined(WIN32))
84: # define OS_CODE 0x00
85: # ifndef Z_SOLO
86: # if defined(__TURBOC__) || defined(__BORLANDC__)
87: # if (__STDC__ == 1) && (defined(__LARGE__) || defined(__COMPACT__))
88: /* Allow compilation with ANSI keywords only enabled */
89: void _Cdecl farfree( void *block );
90: void *_Cdecl farmalloc( unsigned long nbytes );
91: # else
92: # include <alloc.h>
93: # endif
94: # else /* MSC or DJGPP */
95: # include <malloc.h>
96: # endif
97: # endif
98: #endif
99:
100: #ifdef AMIGA
101: # define OS_CODE 0x01
102: #endif
103:
104: #if defined(VAXC) || defined(VMS)
105: # define OS_CODE 0x02
106: # define F_OPEN(name, mode) \
107: fopen((name), (mode), "mbc=60", "ctx=stm", "rfm=fix", "mrs=512")
108: #endif
109:
110: #if defined(ATARI) || defined(atarist)
111: # define OS_CODE 0x05
112: #endif
113:
114: #ifdef OS2
115: # define OS_CODE 0x06
116: # if defined(M_I86) && !defined(Z_SOLO)
117: # include <malloc.h>
118: # endif
119: #endif
120:
121: #if defined(MACOS) || defined(TARGET_OS_MAC)
122: # define OS_CODE 0x07
123: # ifndef Z_SOLO
124: # if defined(__MWERKS__) && __dest_os != __be_os && __dest_os != __win32_os
125: # include <unix.h> /* for fdopen */
126: # else
127: # ifndef fdopen
128: # define fdopen(fd,mode) NULL /* No fdopen() */
129: # endif
130: # endif
131: # endif
132: #endif
133:
134: #ifdef TOPS20
135: # define OS_CODE 0x0a
136: #endif
137:
138: #ifdef WIN32
139: # ifndef __CYGWIN__ /* Cygwin is Unix, not Win32 */
140: # define OS_CODE 0x0b
141: # endif
142: #endif
143:
144: #ifdef __50SERIES /* Prime/PRIMOS */
145: # define OS_CODE 0x0f
146: #endif
147:
148: #if defined(_BEOS_) || defined(RISCOS)
149: # define fdopen(fd,mode) NULL /* No fdopen() */
150: #endif
151:
152: #if (defined(_MSC_VER) && (_MSC_VER > 600)) && !defined __INTERIX
153: # if defined(_WIN32_WCE)
154: # define fdopen(fd,mode) NULL /* No fdopen() */
155: # ifndef _PTRDIFF_T_DEFINED
156: typedef int ptrdiff_t;
157: # define _PTRDIFF_T_DEFINED
158: # endif
159: # else
160: # define fdopen(fd,type) _fdopen(fd,type)
161: # endif
162: #endif
163:
164: #if defined(__BORLANDC__) && !defined(MSDOS)
165: #pragma warn -8004
166: #pragma warn -8008
167: #pragma warn -8066
168: #endif
169:
170: /* provide prototypes for these when building zlib without LFS */
171: #if !defined(_WIN32) && (!defined(_LARGEFILE64_SOURCE) || _LFS64_LARGEFILE-0 == 0)
172: ZEXTERN uLong ZEXPORT adler32_combine64 OF((uLong, uLong, z_off_t));
173: ZEXTERN uLong ZEXPORT crc32_combine64 OF((uLong, uLong, z_off_t));
174: #endif
175:
176: /* common defaults */
177:
178: #ifndef OS_CODE
179: # define OS_CODE 0x03 /* assume Unix */
180: #endif
181:
182: #ifndef F_OPEN
183: # define F_OPEN(name, mode) fopen((name), (mode))
184: #endif
185:
186: /* functions */
187:
188: #if defined(pyr) || defined(Z_SOLO)
189: # define NO_MEMCPY
190: #endif
191: #if defined(SMALL_MEDIUM) && !defined(_MSC_VER) && !defined(__SC__)
192: /* Use our own functions for small and medium model with MSC <= 5.0.
193: * You may have to use the same strategy for Borland C (untested).
194: * The __SC__ check is for Symantec.
195: */
196: # define NO_MEMCPY
197: #endif
198: #if defined(STDC) && !defined(HAVE_MEMCPY) && !defined(NO_MEMCPY)
199: # define HAVE_MEMCPY
200: #endif
201: #ifdef HAVE_MEMCPY
202: # ifdef SMALL_MEDIUM /* MSDOS small or medium model */
203: # define zmemcpy _fmemcpy
204: # define zmemcmp _fmemcmp
205: # define zmemzero(dest, len) _fmemset(dest, 0, len)
206: # else
207: # define zmemcpy memcpy
208: # define zmemcmp memcmp
209: # define zmemzero(dest, len) memset(dest, 0, len)
210: # endif
211: #else
212: void ZLIB_INTERNAL zmemcpy OF((Bytef* dest, const Bytef* source, uInt len));
213: int ZLIB_INTERNAL zmemcmp OF((const Bytef* s1, const Bytef* s2, uInt len));
214: void ZLIB_INTERNAL zmemzero OF((Bytef* dest, uInt len));
215: #endif
216:
217: /* Diagnostic functions */
218: #ifdef DEBUG
219: # include <stdio.h>
220: extern int ZLIB_INTERNAL z_verbose;
221: extern void ZLIB_INTERNAL z_error OF((char *m));
222: # define Assert(cond,msg) {if(!(cond)) z_error(msg);}
223: # define Trace(x) {if (z_verbose>=0) fprintf x ;}
224: # define Tracev(x) {if (z_verbose>0) fprintf x ;}
225: # define Tracevv(x) {if (z_verbose>1) fprintf x ;}
226: # define Tracec(c,x) {if (z_verbose>0 && (c)) fprintf x ;}
227: # define Tracecv(c,x) {if (z_verbose>1 && (c)) fprintf x ;}
228: #else
229: # define Assert(cond,msg)
230: # define Trace(x)
231: # define Tracev(x)
232: # define Tracevv(x)
233: # define Tracec(c,x)
234: # define Tracecv(c,x)
235: #endif
236:
237: #ifndef Z_SOLO
238: voidpf ZLIB_INTERNAL zcalloc OF((voidpf opaque, unsigned items,
239: unsigned size));
240: void ZLIB_INTERNAL zcfree OF((voidpf opaque, voidpf ptr));
241: #endif
242:
243: #define ZALLOC(strm, items, size) \
244: (*((strm)->zalloc))((strm)->opaque, (items), (size))
245: #define ZFREE(strm, addr) (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
246: #define TRY_FREE(s, p) {if (p) ZFREE(s, p);}
247:
248: #endif /* ZUTIL_H */
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