zutil.h

这是某个项目中使用的ARM7TDMI平台上ucos系统的bootloader

/****************************************************************************
**  Copyright  (c)  2004,  UTStarcom, Inc.
**          All Rights Reserved.
**
**  Subsystem  : all modules
**  File       : zutil.h
**  Created By : Pengliang 
**  Created On :  2/2/ 2005
**
**  Purpose:
**    	
****************************************************************************/

/* zutil.h -- internal interface and configuration of the compression library
 * Copyright (C) 1995-1996 Jean-loup Gailly.
 * For conditions of distribution and use, see copyright notice in zlib.h
 */

/* WARNING: this file should *not* be used by applications. It is
   part of the implementation of the compression library and is
   subject to change. Applications should only use zlib.h.
 */

#ifndef _Z_UTIL_H
#define _Z_UTIL_H

#include "stdio.h"
#include "string.h"

#include "zlib.h"

#ifndef local
#  define local static
#endif
/* compile with -Dlocal if your debugger can't find static symbols */

typedef unsigned char  uch;
typedef uch FAR uchf;
typedef unsigned short ush;
typedef ush FAR ushf;
typedef unsigned long  ulg;

extern unzip_const char *z_errmsg[10]; /* indexed by 2-zlib_error */
/* (size given to avoid silly warnings with Visual C++) */

#define ERR_MSG(err) z_errmsg[Z_NEED_DICT-(err)]

#define ERR_RETURN(strm,err) \
  return (strm->msg = (char*)ERR_MSG(err), (err))
/* To be used only when the state is known to be valid */

        /* common constants */

#ifndef DEF_WBITS
#  define DEF_WBITS MAX_WBITS
#endif
/* default windowBits for decompression. MAX_WBITS is for compression only */

#if MAX_MEM_LEVEL >= 8
#  define DEF_MEM_LEVEL 8
#else
#  define DEF_MEM_LEVEL  MAX_MEM_LEVEL
#endif
/* default memLevel */

#define STORED_BLOCK 0
#define STATIC_TREES 1
#define DYN_TREES    2
/* The three kinds of block type */

#define MIN_MATCH  3
#define MAX_MATCH  258
/* The minimum and maximum match lengths */

#define PRESET_DICT 0x20 /* preset dictionary flag in zlib header */

        /* target dependencies */
#if 0

#ifdef MSDOS
#  define OS_CODE  0x00
#  ifdef __TURBOC__
#    include <alloc.h>
#  else /* MSC or DJGPP */
#    include <malloc.h>
#  endif
#endif

#endif

#ifdef OS2
#  define OS_CODE  0x06
#endif

#ifdef WIN32 /* Window 95 & Windows NT */
#  define OS_CODE  0x0b
#endif

#if defined(VAXC) || defined(VMS)
#  define OS_CODE  0x02
#endif

#ifdef AMIGA
#  define OS_CODE  0x01
#endif

#if defined(ATARI) || defined(atarist)
#  define OS_CODE  0x05
#endif

#ifdef MACOS
#  define OS_CODE  0x07
#endif

#ifdef __50SERIES /* Prime/PRIMOS */
#  define OS_CODE  0x0F
#endif

#ifdef TOPS20
#  define OS_CODE  0x0a
#endif

        /* Common defaults */

#ifndef OS_CODE
#  define OS_CODE  0x03  /* assume Unix */
#endif

         /* functions */

#define HAVE_MEMCPY

#ifdef HAVE_MEMCPY
#define zmemcpy memcpy
#define zmemcmp memcmp
#define zmemzero(dest, len) memset(dest, 0, len)
#else
   extern void zmemcpy  OF((Bytef* dest, Bytef* source, uInt len));
   extern int  zmemcmp  OF((Bytef* s1,   Bytef* s2, uInt len));
   extern void zmemzero OF((Bytef* dest, uInt len));
#endif

/* Diagnostic functions */
#if 0
#ifdef DEBUG
#  include <stdio.h>
#  ifndef verbose
#    define verbose 0
#  endif
   extern void z_error    OF((char *m));
#  define Assert(cond,msg) {if(!(cond)) z_error(msg);}
#  define Trace(x) fprintf x
#  define Tracev(x) {if (verbose) fprintf x ;}
#  define Tracevv(x) {if (verbose>1) fprintf x ;}
#  define Tracec(c,x) {if (verbose && (c)) fprintf x ;}
#  define Tracecv(c,x) {if (verbose>1 && (c)) fprintf x ;}
#else
#  define Assert(cond,msg)
#  define Trace(x)
#  define Tracev(x)
#  define Tracevv(x)
#  define Tracec(c,x)
#  define Tracecv(c,x)
#endif

#else
#  define Assert(cond,msg)
#  define Trace(x)
#  define Tracev(x)
#  define Tracevv(x)
#  define Tracec(c,x)
#  define Tracecv(c,x)
#endif

typedef uLong (*check_func) OF((uLong check, unzip_const Bytef *buf, uInt len));

voidpf zcalloc OF((voidpf opaque, unsigned items, unsigned size));
void   zcfree  OF((voidpf opaque, voidpf ptr));

#define ZALLOC(strm, items, size) \
           (*((strm)->zalloc))((strm)->opaque, (items), (size))
#define ZFREE(strm, addr)  (*((strm)->zfree))((strm)->opaque, (voidpf)(addr))
#define TRY_FREE(s, p) {if (p) ZFREE(s, p);}

#endif /* _Z_UTIL_H */