support/minizip/ioapi.h

   1 /* ioapi.h -- IO base function header for compress/uncompress .zip
   2    files using zlib + zip or unzip API
   3
   4    Version 1.01e, February 12th, 2005
   5
   6    Copyright (C) 1998-2005 Gilles Vollant
   7 */
   8
   9 #ifndef _ZLIBIOAPI_H
  10 #define _ZLIBIOAPI_H
  11
  12
  13 #define ZLIB_FILEFUNC_SEEK_CUR (1)
  14 #define ZLIB_FILEFUNC_SEEK_END (2)
  15 #define ZLIB_FILEFUNC_SEEK_SET (0)
  16
  17 #define ZLIB_FILEFUNC_MODE_READ      (1)
  18 #define ZLIB_FILEFUNC_MODE_WRITE     (2)
  19 #define ZLIB_FILEFUNC_MODE_READWRITEFILTER (3)
  20
  21 #define ZLIB_FILEFUNC_MODE_EXISTING (4)
  22 #define ZLIB_FILEFUNC_MODE_CREATE   (8)
  23
  24
  25 #ifndef ZCALLBACK
  26 // Nothing defines 'CALLBACK' anyway so to avoid accidentally changing
  27 // the calling convention by including a header which defines this, just
  28 // define ZCALLBACK as empty so we always get cdecl and our P/Invokes don't break.
  29 #define ZCALLBACK
  30
  31 //#if (defined(WIN32) || defined (WINDOWS) || defined (_WINDOWS)) && defined(CALLBACK) && defined (USEWINDOWS_CALLBACK)
  32 //#define ZCALLBACK CALLBACK
  33 //#else
  34 //#define ZCALLBACK
  35 //#endif
  36 #endif
  37
  38 #ifdef __cplusplus
  39 extern "C" {
  40 #endif
  41
  42 typedef voidpf (ZCALLBACK *open_file_func) OF((voidpf opaque, const char* filename, int mode));
  43 typedef uLong  (ZCALLBACK *read_file_func) OF((voidpf opaque, voidpf stream, void* buf, uLong size));
  44 typedef uLong  (ZCALLBACK *write_file_func) OF((voidpf opaque, voidpf stream, const void* buf, uLong size));
  45 typedef long   (ZCALLBACK *tell_file_func) OF((voidpf opaque, voidpf stream));
  46 typedef long   (ZCALLBACK *seek_file_func) OF((voidpf opaque, voidpf stream, uLong offset, int origin));
  47 typedef int    (ZCALLBACK *close_file_func) OF((voidpf opaque, voidpf stream));
  48 typedef int    (ZCALLBACK *testerror_file_func) OF((voidpf opaque, voidpf stream));
  49
  50 typedef struct zlib_filefunc_def_s
  51 {
  52     open_file_func      zopen_file;
  53     read_file_func      zread_file;
  54     write_file_func     zwrite_file;
  55     tell_file_func      ztell_file;
  56     seek_file_func      zseek_file;
  57     close_file_func     zclose_file;
  58     testerror_file_func zerror_file;
  59     voidpf              opaque;
  60 } zlib_filefunc_def;
  61
  62
  63
  64 void fill_fopen_filefunc OF((zlib_filefunc_def* pzlib_filefunc_def));
  65
  66 #define ZREAD(filefunc,filestream,buf,size) ((*((filefunc).zread_file))((filefunc).opaque,filestream,buf,size))
  67 #define ZWRITE(filefunc,filestream,buf,size) ((*((filefunc).zwrite_file))((filefunc).opaque,filestream,buf,size))
  68 #define ZTELL(filefunc,filestream) ((*((filefunc).ztell_file))((filefunc).opaque,filestream))
  69 #define ZSEEK(filefunc,filestream,pos,mode) ((*((filefunc).zseek_file))((filefunc).opaque,filestream,pos,mode))
  70 #define ZCLOSE(filefunc,filestream) ((*((filefunc).zclose_file))((filefunc).opaque,filestream))
  71 #define ZERROR(filefunc,filestream) ((*((filefunc).zerror_file))((filefunc).opaque,filestream))
  72
  73
  74 #ifdef __cplusplus
  75 }
  76 #endif
  77
  78 #endif
  79