ioapi.h

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00001 /* ioapi.h -- IO base function header for compress/uncompress .zip
00002    files using zlib + zip or unzip API
00003 
00004    Version 1.01e, February 12th, 2005
00005 
00006    Copyright (C) 1998-2005 Gilles Vollant
00007 */
00008 
00009 #ifndef _ZLIBIOAPI_H
00010 #define _ZLIBIOAPI_H
00011 
00012 
00013 #define ZLIB_FILEFUNC_SEEK_CUR (1)
00014 #define ZLIB_FILEFUNC_SEEK_END (2)
00015 #define ZLIB_FILEFUNC_SEEK_SET (0)
00016 
00017 #define ZLIB_FILEFUNC_MODE_READ      (1)
00018 #define ZLIB_FILEFUNC_MODE_WRITE     (2)
00019 #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
00020 
00021 #define ZLIB_FILEFUNC_MODE_EXISTING (4)
00022 #define ZLIB_FILEFUNC_MODE_CREATE   (8)
00023 
00024 
00025 #ifndef ZCALLBACK
00026 
00027 #if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
00028 #define ZCALLBACK CALLBACK
00029 #else
00030 #define ZCALLBACK
00031 #endif
00032 #endif
00033 
00034 #ifdef __cplusplus
00035 extern "C" {
00036 #endif
00037 
00038 typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
00039 typedef uLong  (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
00040 typedef uLong  (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
00041 typedef long   (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
00042 typedef long   (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
00043 typedef int    (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
00044 typedef int    (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
00045 
00046 typedef struct zlib_filefunc_def_s
00047 {
00048     open_file_func      zopen_file;
00049     read_file_func      zread_file;
00050     write_file_func     zwrite_file;
00051     tell_file_func      ztell_file;
00052     seek_file_func      zseek_file;
00053     close_file_func     zclose_file;
00054     testerror_file_func zerror_file;
00055     voidpf              opaque;
00056 } zlib_filefunc_def;
00057 
00058 
00059 
00060 void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
00061 
00062 #define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
00063 #define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
00064 #define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
00065 #define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
00066 #define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
00067 #define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))
00068 
00069 
00070 #ifdef __cplusplus
00071 }
00072 #endif
00073 
00074 #endif