win32/include/io.h

   1 /*
   2  * io.h
   3  *
   4  * System level I/O functions and types.
   5  *
   6  * This file is part of the Mingw32 package.
   7  *
   8  * Contributors:
   9  *  Created by Colin Peters <colin@bird.fu.is.saga-u.ac.jp>
  10  *
  11  *  THIS SOFTWARE IS NOT COPYRIGHTED
  12  *
  13  *  This source code is offered for use in the public domain. You may
  14  *  use, modify or distribute it freely.
  15  *
  16  *  This code is distributed in the hope that it will be useful but
  17  *  WITHOUT ANY WARRANTY. ALL WARRANTIES, EXPRESS OR IMPLIED ARE HEREBY
  18  *  DISCLAIMED. This includes but is not limited to warranties of
  19  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  20  *
  21  * $Revision: 1.2 $
  22  * $Author: bellard $
  23  * $Date: 2005/04/17 13:14:29 $
  24  *
  25  */
  26
  27 #ifndef __STRICT_ANSI__
  28
  29 #ifndef _IO_H_
  30 #define _IO_H_
  31
  32 /* All the headers include this file. */
  33 #include <_mingw.h>
  34
  35 /* We need the definition of FILE anyway... */
  36 #include <stdio.h>
  37
  38 /* MSVC's io.h contains the stuff from dir.h, so I will too.
  39  * NOTE: This also defines off_t, the file offset type, through
  40  *       an inclusion of sys/types.h */
  41 #ifndef __STRICT_ANSI__
  42
  43 #include <sys/types.h>  /* To get time_t. */
  44
  45 /*
  46  * Attributes of files as returned by _findfirst et al.
  47  */
  48 #define _A_NORMAL       0x00000000
  49 #define _A_RDONLY       0x00000001
  50 #define _A_HIDDEN       0x00000002
  51 #define _A_SYSTEM       0x00000004
  52 #define _A_VOLID        0x00000008
  53 #define _A_SUBDIR       0x00000010
  54 #define _A_ARCH         0x00000020
  55
  56
  57 #ifndef RC_INVOKED
  58
  59 #ifndef _FSIZE_T_DEFINED
  60 typedef unsigned long   _fsize_t;
  61 #define _FSIZE_T_DEFINED
  62 #endif
  63
  64 /*
  65  * The following structure is filled in by _findfirst or _findnext when
  66  * they succeed in finding a match.
  67  */
  68 struct _finddata_t
  69 {
  70         unsigned        attrib;         /* Attributes, see constants above. */
  71         time_t          time_create;
  72         time_t          time_access;    /* always midnight local time */
  73         time_t          time_write;
  74         _fsize_t        size;
  75         char            name[FILENAME_MAX];     /* may include spaces. */
  76 };
  77
  78 struct _finddatai64_t {
  79     unsigned    attrib;
  80     time_t      time_create;
  81     time_t      time_access;
  82     time_t      time_write;
  83     __int64     size;
  84     char        name[FILENAME_MAX];
  85 };
  86
  87
  88 #ifndef _WFINDDATA_T_DEFINED
  89 struct _wfinddata_t {
  90         unsigned        attrib;
  91         time_t          time_create;    /* -1 for FAT file systems */
  92         time_t          time_access;    /* -1 for FAT file systems */
  93         time_t          time_write;
  94         _fsize_t        size;
  95         wchar_t         name[FILENAME_MAX];     /* may include spaces. */
  96 };
  97 struct _wfinddatai64_t {
  98     unsigned    attrib;
  99     time_t      time_create;
 100     time_t      time_access;
 101     time_t      time_write;
 102     __int64     size;
 103     wchar_t     name[FILENAME_MAX];
 104 };
 105
 106 #define _WFINDDATA_T_DEFINED
 107 #endif
 108
 109 #ifdef  __cplusplus
 110 extern "C" {
 111 #endif
 112
 113 /*
 114  * Functions for searching for files. _findfirst returns -1 if no match
 115  * is found. Otherwise it returns a handle to be used in _findnext and
 116  * _findclose calls. _findnext also returns -1 if no match could be found,
 117  * and 0 if a match was found. Call _findclose when you are finished.
 118  */
 119 int     _findfirst (const char*, struct _finddata_t*);
 120 int     _findnext (int, struct _finddata_t*);
 121 int     _findclose (int);
 122
 123 int     _chdir (const char*);
 124 char*   _getcwd (char*, int);
 125 int     _mkdir (const char*);
 126 char*   _mktemp (char*);
 127 int     _rmdir (const char*);
 128
 129
 130 #ifdef __MSVCRT__
 131 __int64  _filelengthi64(int);
 132 long _findfirsti64(const char*, struct _finddatai64_t*);
 133 int _findnexti64(long, struct _finddatai64_t*);
 134 __int64  _lseeki64(int, __int64, int);
 135 __int64  _telli64(int);
 136 #endif /* __MSVCRT__ */
 137
 138
 139 #ifndef _NO_OLDNAMES
 140
 141 #ifndef _UWIN
 142 int     chdir (const char*);
 143 char*   getcwd (char*, int);
 144 int     mkdir (const char*);
 145 char*   mktemp (char*);
 146 int     rmdir (const char*);
 147 #endif /* _UWIN */
 148
 149 #endif /* Not _NO_OLDNAMES */
 150
 151 #ifdef  __cplusplus
 152 }
 153 #endif
 154
 155 #endif  /* Not RC_INVOKED */
 156
 157 #endif  /* Not __STRICT_ANSI__ */
 158
 159 /* TODO: Maximum number of open handles has not been tested, I just set
 160  * it the same as FOPEN_MAX. */
 161 #define HANDLE_MAX      FOPEN_MAX
 162
 163
 164 /* Some defines for _access nAccessMode (MS doesn't define them, but
 165  * it doesn't seem to hurt to add them). */
 166 #define F_OK    0       /* Check for file existence */
 167 #define X_OK    1       /* Check for execute permission. */
 168 #define W_OK    2       /* Check for write permission */
 169 #define R_OK    4       /* Check for read permission */
 170
 171 #ifndef RC_INVOKED
 172
 173 #ifdef  __cplusplus
 174 extern "C" {
 175 #endif
 176
 177 int             _access (const char*, int);
 178 int             _chsize (int, long);
 179 int             _close (int);
 180 int             _commit(int);
 181
 182 /* NOTE: The only significant bit in unPermissions appears to be bit 7 (0x80),
 183  *       the "owner write permission" bit (on FAT). */
 184 int             _creat (const char*, unsigned);
 185
 186 int             _dup (int);
 187 int             _dup2 (int, int);
 188 long            _filelength (int);
 189 int             _fileno (FILE*);
 190 long            _get_osfhandle (int);
 191 int             _isatty (int);
 192
 193 /* In a very odd turn of events this function is excluded from those
 194  * files which define _STREAM_COMPAT. This is required in order to
 195  * build GNU libio because of a conflict with _eof in streambuf.h
 196  * line 107. Actually I might just be able to change the name of
 197  * the enum member in streambuf.h... we'll see. TODO */
 198 #ifndef _STREAM_COMPAT
 199 int             _eof (int);
 200 #endif
 201
 202 /* LK_... locking commands defined in sys/locking.h. */
 203 int             _locking (int, int, long);
 204
 205 long            _lseek (int, long, int);
 206
 207 /* Optional third argument is unsigned unPermissions. */
 208 int             _open (const char*, int, ...);
 209
 210 int             _open_osfhandle (long, int);
 211 int             _pipe (int *, unsigned int, int);
 212 int             _read (int, void*, unsigned int);
 213
 214 /* SH_... flags for nShFlags defined in share.h
 215  * Optional fourth argument is unsigned unPermissions */
 216 int             _sopen (const char*, int, int, ...);
 217
 218 long            _tell (int);
 219 /* Should umask be in sys/stat.h and/or sys/types.h instead? */
 220 int             _umask (int);
 221 int             _unlink (const char*);
 222 int             _write (int, const void*, unsigned int);
 223
 224 /* Wide character versions. Also declared in wchar.h. */
 225 /* Not in crtdll.dll */
 226 #if !defined (_WIO_DEFINED)
 227 #if defined (__MSVCRT__)
 228 int             _waccess(const wchar_t*, int);
 229 int             _wchmod(const wchar_t*, int);
 230 int             _wcreat(const wchar_t*, int);
 231 long            _wfindfirst(wchar_t*, struct _wfinddata_t*);
 232 int             _wfindnext(long, struct _wfinddata_t *);
 233 int             _wunlink(const wchar_t*);
 234 int             _wopen(const wchar_t*, int, ...);
 235 int             _wsopen(const wchar_t*, int, int, ...);
 236 wchar_t *       _wmktemp(wchar_t*);
 237 long  _wfindfirsti64(const wchar_t*, struct _wfinddatai64_t*);
 238 int  _wfindnexti64(long, struct _wfinddatai64_t*);
 239 #endif /* defined (__MSVCRT__) */
 240 #define _WIO_DEFINED
 241 #endif /* _WIO_DEFINED */
 242
 243 #ifndef _NO_OLDNAMES
 244 /*
 245  * Non-underscored versions of non-ANSI functions to improve portability.
 246  * These functions live in libmoldname.a.
 247  */
 248
 249 #ifndef _UWIN
 250 int             access (const char*, int);
 251 int             chsize (int, long );
 252 int             close (int);
 253 int             creat (const char*, int);
 254 int             dup (int);
 255 int             dup2 (int, int);
 256 int             eof (int);
 257 long            filelength (int);
 258 int             fileno (FILE*);
 259 int             isatty (int);
 260 long            lseek (int, long, int);
 261 int             open (const char*, int, ...);
 262 int             read (int, void*, unsigned int);
 263 int             sopen (const char*, int, int, ...);
 264 long            tell (int);
 265 int             umask (int);
 266 int             unlink (const char*);
 267 int             write (int, const void*, unsigned int);
 268 #endif /* _UWIN */
 269
 270 /* Wide character versions. Also declared in wchar.h. */
 271 /* Where do these live? Not in libmoldname.a nor in libmsvcrt.a */
 272 #if 0
 273 int             waccess(const wchar_t *, int);
 274 int             wchmod(const wchar_t *, int);
 275 int             wcreat(const wchar_t *, int);
 276 long            wfindfirst(wchar_t *, struct _wfinddata_t *);
 277 int             wfindnext(long, struct _wfinddata_t *);
 278 int             wunlink(const wchar_t *);
 279 int             wrename(const wchar_t *, const wchar_t *);
 280 int             wopen(const wchar_t *, int, ...);
 281 int             wsopen(const wchar_t *, int, int, ...);
 282 wchar_t *       wmktemp(wchar_t *);
 283 #endif
 284
 285 #endif  /* Not _NO_OLDNAMES */
 286
 287 #ifdef  __cplusplus
 288 }
 289 #endif
 290
 291 #endif  /* Not RC_INVOKED */
 292
 293 #endif  /* _IO_H_ not defined */
 294
 295 #endif  /* Not strict ANSI */
 296