sdk/include/crt/dirent.h

   1 /**
   2  * This file has no copyright assigned and is placed in the Public Domain.
   3  * This file is part of the w64 mingw-runtime package.
   4  * No warranty is given; refer to the file DISCLAIMER within this package.
   5  */
   6 #include <crtdefs.h>
   7
   8 #ifndef __STRICT_ANSI__
   9
  10 #ifndef _DIRENT_H_
  11 #define _DIRENT_H_
  12
  13
  14 #pragma pack(push,_CRT_PACKING)
  15
  16 #include <io.h>
  17
  18 #ifndef RC_INVOKED
  19
  20 #ifdef __cplusplus
  21 extern "C" {
  22 #endif
  23
  24   struct dirent
  25   {
  26     long                d_ino;          /* Always zero. */
  27     unsigned short      d_reclen;       /* Always zero. */
  28     unsigned short      d_namlen;       /* Length of name in d_name. */
  29     char*               d_name;         /* File name. */
  30     /* NOTE: The name in the dirent structure points to the name in the
  31     *       finddata_t structure in the DIR. */
  32   };
  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     long                        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;         /* File name. */
  80     /* NOTE: The name in the dirent structure points to the name in the  *       wfinddata_t structure in the _WDIR. */
  81   };
  82
  83   /*
  84   * This is an internal data structure. Good programmers will not use it
  85   * except as an argument to one of the functions below.
  86   */
  87   typedef struct
  88   {
  89     /* disk transfer area for this dir */
  90     struct _wfinddata_t dd_dta;
  91
  92     /* dirent struct to return from dir (NOTE: this makes this thread
  93     * safe as long as only one thread uses a particular DIR struct at
  94     * a time) */
  95     struct _wdirent             dd_dir;
  96
  97     /* _findnext handle */
  98     long                        dd_handle;
  99
 100     /*
 101     * Status of search:
 102     *   0 = not started yet (next entry to read is first entry)
 103     *  -1 = off the end
 104     *   positive = 0 based index of next entry
 105     */
 106     int                 dd_stat;
 107
 108     /* given path for dir with search pattern (struct is extended) */
 109     wchar_t                     dd_name[1];
 110   } _WDIR;
 111
 112
 113
 114   _WDIR* __cdecl _wopendir (const wchar_t*);
 115   struct _wdirent*  __cdecl _wreaddir (_WDIR*);
 116   int __cdecl _wclosedir (_WDIR*);
 117   void __cdecl _wrewinddir (_WDIR*);
 118   long __cdecl _wtelldir (_WDIR*);
 119   void __cdecl _wseekdir (_WDIR*, long);
 120
 121
 122 #ifdef  __cplusplus
 123 }
 124 #endif
 125
 126 #endif  /* Not RC_INVOKED */
 127
 128 #pragma pack(pop)
 129
 130 #endif  /* Not _DIRENT_H_ */
 131
 132
 133 #endif  /* Not __STRICT_ANSI__ */
 134