build/win32/dirent/dirent.h

   1 /*
   2  * DIRENT.H (formerly DIRLIB.H)
   3  * This file has no copyright assigned and is placed in the Public Domain.
   4  * This file is a part of the mingw-runtime package.
   5  * No warranty is given; refer to the file DISCLAIMER within the package.
   6  *
   7  */
   8 #ifndef _DIRENT_H_
   9 #define _DIRENT_H_
  10
  11 #include <stdio.h>
  12 #include <io.h>
  13
  14 #ifndef RC_INVOKED
  15
  16 #ifdef __cplusplus
  17 extern "C" {
  18 #endif
  19
  20 struct dirent
  21 {
  22         long            d_ino;          /* Always zero. */
  23         unsigned short  d_reclen;       /* Always zero. */
  24         unsigned short  d_namlen;       /* Length of name in d_name. */
  25         char            d_name[FILENAME_MAX]; /* File name. */
  26 };
  27
  28 #ifdef _WIN64
  29 #define INTPTR __int64
  30 #else
  31 #define INTPTR long
  32 #endif
  33
  34 /*
  35  * This is an internal data structure. Good programmers will not use it
  36  * except as an argument to one of the functions below.
  37  * dd_stat field is now int (was short in older versions).
  38  */
  39 typedef struct
  40 {
  41         /* disk transfer area for this dir */
  42         struct _finddata_t      dd_dta;
  43
  44         /* dirent struct to return from dir (NOTE: this makes this thread
  45          * safe as long as only one thread uses a particular DIR struct at
  46          * a time) */
  47         struct dirent           dd_dir;
  48
  49         /* _findnext handle */
  50         INTPTR                  dd_handle;
  51
  52         /*
  53          * Status of search:
  54          *   0 = not started yet (next entry to read is first entry)
  55          *  -1 = off the end
  56          *   positive = 0 based index of next entry
  57          */
  58         int                     dd_stat;
  59
  60         /* given path for dir with search pattern (struct is extended) */
  61         char                    dd_name[1];
  62 } DIR;
  63
  64 DIR* __cdecl opendir (const char*);
  65 struct dirent* __cdecl readdir (DIR*);
  66 int __cdecl closedir (DIR*);
  67 void __cdecl rewinddir (DIR*);
  68 long __cdecl telldir (DIR*);
  69 void __cdecl seekdir (DIR*, long);
  70
  71
  72 /* wide char versions */
  73
  74 struct _wdirent
  75 {
  76         long            d_ino;          /* Always zero. */
  77         unsigned short  d_reclen;       /* Always zero. */
  78         unsigned short  d_namlen;       /* Length of name in d_name. */
  79         wchar_t         d_name[FILENAME_MAX]; /* File name. */
  80 };
  81
  82 /*
  83  * This is an internal data structure. Good programmers will not use it
  84  * except as an argument to one of the functions below.
  85  */
  86 typedef struct
  87 {
  88         /* disk transfer area for this dir */
  89         struct _wfinddata_t     dd_dta;
  90
  91         /* dirent struct to return from dir (NOTE: this makes this thread
  92          * safe as long as only one thread uses a particular DIR struct at
  93          * a time) */
  94         struct _wdirent         dd_dir;
  95
  96         /* _findnext handle */
  97         INTPTR                  dd_handle;
  98
  99         /*
 100          * Status of search:
 101          *   0 = not started yet (next entry to read is first entry)
 102          *  -1 = off the end
 103          *   positive = 0 based index of next entry
 104          */
 105         int                     dd_stat;
 106
 107         /* given path for dir with search pattern (struct is extended) */
 108         wchar_t                 dd_name[1];
 109 } _WDIR;
 110
 111
 112
 113 _WDIR* __cdecl _wopendir (const wchar_t*);
 114 struct _wdirent*  __cdecl _wreaddir (_WDIR*);
 115 int __cdecl _wclosedir (_WDIR*);
 116 void __cdecl _wrewinddir (_WDIR*);
 117 long __cdecl _wtelldir (_WDIR*);
 118 void __cdecl _wseekdir (_WDIR*, long);
 119
 120
 121 #ifdef  __cplusplus
 122 }
 123 #endif
 124
 125 #endif  /* Not RC_INVOKED */
 126
 127 #endif  /* Not _DIRENT_H_ */