include/wx/filefn.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        wx/filefn.h
   3 // Purpose:     File- and directory-related functions
   4 // Author:      Julian Smart
   5 // Modified by:
   6 // Created:     29/01/98
   7 // RCS-ID:      $Id$
   8 // Copyright:   (c) 1998 Julian Smart
   9 // Licence:     wxWindows licence
  10 /////////////////////////////////////////////////////////////////////////////
  11
  12 #ifndef   _FILEFN_H_
  13 #define   _FILEFN_H_
  14
  15 #include "wx/list.h"
  16 #include "wx/arrstr.h"
  17
  18 #ifdef __WXWINCE__
  19     #include "wx/msw/wince/time.h"
  20     #include "wx/msw/private.h"
  21 #else
  22     #include <time.h>
  23 #endif
  24
  25 #ifdef __WXWINCE__
  26 // Nothing
  27 #elif !defined(__MWERKS__)
  28     #include <sys/types.h>
  29     #include <sys/stat.h>
  30 #else
  31     #ifdef __MACH__
  32         #include <sys/types.h>
  33         #include <utime.h>
  34         #include <sys/stat.h>
  35         #include <unistd.h>
  36     #else
  37         #include <stat.h>
  38         #include <unistd.h>
  39         #include <unix.h>
  40     #endif
  41 #endif
  42
  43 #ifdef __OS2__
  44 // need to check for __OS2__ first since currently both
  45 // __OS2__ and __UNIX__ are defined.
  46     #include <process.h>
  47     #include "wx/os2/private.h"
  48     #ifdef __WATCOMC__
  49         #include <direct.h>
  50     #endif
  51     #include <io.h>
  52     #ifdef __EMX__
  53         #include <unistd.h>
  54     #endif
  55 #elif defined(__UNIX__)
  56     #include <unistd.h>
  57     #include <dirent.h>
  58 #endif
  59
  60 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  61 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__) && !defined(__CYGWIN__)
  62     #include <direct.h>
  63     #include <dos.h>
  64     #include <io.h>
  65 #endif // __WINDOWS__
  66 #endif // native Win compiler
  67
  68 #if defined(__DOS__)
  69     #ifdef __WATCOMC__
  70         #include <direct.h>
  71         #include <dos.h>
  72         #include <io.h>
  73     #endif
  74     #ifdef __DJGPP__
  75         #include <io.h>
  76         #include <unistd.h>
  77     #endif
  78 #endif
  79
  80 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  81                     // this (3.1 I believe) and how to test for it.
  82                     // If this works for Borland 4.0 as well, then no worries.
  83     #include <dir.h>
  84 #endif
  85
  86 #ifdef __SALFORDC__
  87     #include <dir.h>
  88     #include <unix.h>
  89 #endif
  90
  91 #ifndef __WXWINCE__
  92     #include  <fcntl.h>       // O_RDONLY &c
  93 #endif
  94 // ----------------------------------------------------------------------------
  95 // constants
  96 // ----------------------------------------------------------------------------
  97
  98 #ifdef __WXWINCE__
  99     typedef long off_t;
 100 #else
 101     // define off_t
 102     #if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
 103         #include  <sys/types.h>
 104     #else
 105         typedef long off_t;
 106     #endif
 107 #endif
 108
 109 #if (defined(__VISUALC__) && !defined(__WXWINCE__)) || ( defined(__MWERKS__) && defined( __INTEL__) )
 110     typedef _off_t off_t;
 111 #elif defined(__SYMANTEC__)
 112     typedef long off_t;
 113 #elif defined(__MWERKS__) && !defined(__INTEL__) && !defined(__MACH__)
 114     typedef long off_t;
 115 #endif
 116
 117 enum wxSeekMode
 118 {
 119   wxFromStart,
 120   wxFromCurrent,
 121   wxFromEnd
 122 };
 123
 124 enum wxFileKind
 125 {
 126   wxFILE_KIND_UNKNOWN,
 127   wxFILE_KIND_DISK,     // a file supporting seeking to arbitrary offsets
 128   wxFILE_KIND_TERMINAL, // a tty
 129   wxFILE_KIND_PIPE      // a pipe
 130 };
 131
 132 // ----------------------------------------------------------------------------
 133 // declare our versions of low level file functions: some compilers prepend
 134 // underscores to the usual names, some also have Unicode versions of them
 135 // ----------------------------------------------------------------------------
 136
 137 // Wrappers around Win32 api functions like CreateFile, ReadFile and such
 138 // Implemented in filefnwce.cpp
 139 #if defined( __WXWINCE__)
 140     typedef __int64 wxFileOffset;
 141     #define wxFileOffsetFmtSpec _("I64")
 142     int wxOpen(const wxChar *filename, int oflag, int WXUNUSED(pmode));
 143     int wxAccess(const wxChar *name, int WXUNUSED(how));
 144     int wxClose(int fd);
 145     int wxFsync(int WXUNUSED(fd));
 146     int wxRead(int fd, void *buf, unsigned int count);
 147     int wxWrite(int fd, const void *buf, unsigned int count);
 148     int wxEof(int fd);
 149     wxFileOffset wxSeek(int fd, wxFileOffset offset, int origin);
 150     #define wxLSeek wxSeek
 151     wxFileOffset wxTell(int fd);
 152
 153     // always Unicode under WinCE
 154     #define   wxMkDir      _wmkdir
 155     #define   wxRmDir      _wrmdir
 156     #define   wxStat       _wstat
 157     #define   wxStructStat struct _stat
 158
 159 // Microsoft compiler loves underscores, feed them to it
 160 #elif defined( __VISUALC__ ) \
 161     || ( defined(__MINGW32__) && !defined(__WINE__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
 162     || ( defined(__MWERKS__) && defined(__WXMSW__) ) \
 163     || ( defined(__DMC__) && defined(__WXMSW__) ) \
 164     || ( defined(__WATCOMC__) && defined(__WXMSW__) )
 165
 166     // detect compilers which have support for huge files (currently only
 167     // Digital Mars doesn't)
 168     #ifndef __WXPALMOS__
 169     #include "wx/msw/private.h"
 170     #endif
 171
 172     #undef wxHAS_HUGE_FILES
 173     #if defined(__MINGW32__)
 174         #define wxHAS_HUGE_FILES 1
 175     #elif defined(__MWERKS__)
 176         #define wxHAS_HUGE_FILES 0
 177     #elif defined(__DMC__)
 178         #define wxHAS_HUGE_FILES 0
 179     #elif ((_INTEGRAL_MAX_BITS >= 64) || defined(_LARGE_FILES))
 180         #define wxHAS_HUGE_FILES 1
 181     #else
 182         #define wxHAS_HUGE_FILES 0
 183     #endif
 184
 185     // functions
 186     #if defined(__BORLANDC__) || defined(__WATCOMC__)
 187         #define   _tell        tell
 188     #endif
 189
 190     #if wxHAS_HUGE_FILES
 191         typedef wxLongLong_t wxFileOffset;
 192         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 193     #else
 194         typedef off_t wxFileOffset;
 195     #endif
 196
 197     #define   wxClose      _close
 198
 199     #if defined(__MWERKS__)
 200         #if __MSL__ >= 0x6000
 201             #define wxRead(fd, buf, nCount)  _read(fd, (void *)buf, nCount)
 202             #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)
 203         #else
 204             #define wxRead(fd, buf, nCount)\
 205                   _read(fd, (const char *)buf, nCount)
 206             #define wxWrite(fd, buf, nCount)\
 207                   _write(fd, (const char *)buf, nCount)
 208         #endif
 209     #else
 210         #if defined(__DMC__) || defined(__WATCOMC__)
 211             #define wxRead        ::read
 212             #define wxWrite       ::write
 213         #else
 214             #define wxRead        _read
 215             #define wxWrite        _write
 216         #endif
 217     #endif
 218     #if wxHAS_HUGE_FILES
 219         #define   wxSeek      _lseeki64
 220         #define   wxLseek      _lseeki64
 221         #define   wxTell       _telli64
 222     #else
 223         #define   wxSeek      _lseek
 224         #define   wxLseek      _lseek
 225         #define   wxTell       _tell
 226     #endif
 227     #define   wxFsync      _commit
 228     #if defined(__WATCOMC__)
 229         #define   wxEof        ::eof
 230     #else
 231         #define   wxEof        _eof
 232     #endif
 233
 234     #if wxUSE_UNICODE
 235         #if wxUSE_UNICODE_MSLU
 236             #define   wxOpen       wxMSLU__wopen
 237
 238             #define   wxAccess     wxMSLU__waccess
 239             #define   wxMkDir      wxMSLU__wmkdir
 240             #define   wxRmDir      wxMSLU__wrmdir
 241             #if wxHAS_HUGE_FILES
 242                 #define   wxStat       wxMSLU__wstati64
 243             #else
 244                 #define   wxStat       wxMSLU__wstat
 245             #endif
 246         #else
 247             #define   wxOpen       _wopen
 248             #define   wxAccess     _waccess
 249             #define   wxMkDir      _wmkdir
 250             #define   wxRmDir      _wrmdir
 251             #if wxHAS_HUGE_FILES
 252                 #define   wxStat       _wstati64
 253             #else
 254                 #define   wxStat       _wstat
 255             #endif
 256         #endif
 257     #else // !wxUSE_UNICODE
 258         #ifdef __BORLANDC__
 259             #define   wxOpen       open
 260         #else
 261             #define   wxOpen       _open
 262         #endif
 263         #define   wxAccess     _access
 264         #define   wxMkDir      _mkdir
 265         #ifdef __WATCOMC__
 266             #define   wxRmDir      rmdir
 267         #else
 268             #define   wxRmDir      _rmdir
 269         #endif
 270         #if wxHAS_HUGE_FILES
 271             #define   wxStat       _stati64
 272         #else
 273             #define   wxStat       _stat
 274         #endif
 275     #endif
 276
 277     // types: notice that Watcom is the only compiler to have a wide char
 278     // version of struct stat as well as a wide char stat function variant
 279     #if wxHAS_HUGE_FILES
 280         #if wxUSE_UNICODE && defined(__WATCOMC__)
 281             #define   wxStructStat struct _wstati64
 282         #else
 283             #define   wxStructStat struct _stati64
 284         #endif
 285     #else
 286         #if wxUSE_UNICODE && defined(__WATCOMC__)
 287             #define   wxStructStat struct _wstat
 288         #else
 289             #define   wxStructStat struct _stat
 290         #endif
 291     #endif
 292
 293     // constants (unless already defined by the user code)
 294     #if !defined(__BORLANDC__) && !defined(__WATCOMC__) && !defined(__WXPALMOS__)
 295         #ifndef O_RDONLY
 296             #define   O_RDONLY    _O_RDONLY
 297             #define   O_WRONLY    _O_WRONLY
 298             #define   O_RDWR      _O_RDWR
 299             #define   O_EXCL      _O_EXCL
 300             #define   O_CREAT     _O_CREAT
 301             #define   O_BINARY    _O_BINARY
 302         #endif
 303
 304         #ifndef S_IFMT
 305             #define   S_IFMT      _S_IFMT
 306             #define   S_IFDIR     _S_IFDIR
 307             #define   S_IFREG     _S_IFREG
 308         #endif
 309     #endif
 310
 311     // It's a private define, undefine it so nobody gets tempted to use it
 312     #undef wxHAS_HUGE_FILES
 313 #else // Unix platforms using configure
 314     typedef off_t wxFileOffset;
 315     #ifdef _LARGE_FILES
 316         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 317         wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
 318                                 BadFileSizeType );
 319     #else
 320         #define wxFileOffsetFmtSpec _T("")
 321     #endif
 322     // functions
 323     #define   wxClose      close
 324     #define   wxRead       ::read
 325     #define   wxWrite      ::write
 326     #define   wxLseek      lseek
 327     #define   wxSeek       lseek
 328     #define   wxFsync      fsync
 329     #define   wxEof        eof
 330
 331     #define   wxMkDir      mkdir
 332     #define   wxRmDir      rmdir
 333
 334     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 335
 336     #define   wxStructStat struct stat
 337
 338     #if wxUSE_UNICODE
 339         #define wxNEED_WX_UNISTD_H
 340         #if defined(__DMC__)
 341             typedef unsigned long mode_t;
 342         #endif
 343         WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf );
 344         WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode );
 345         WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode );
 346     #else
 347         #define   wxOpen       open
 348         #define   wxStat       stat
 349         #define   wxAccess     access
 350     #endif
 351 #endif // platforms
 352
 353 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 354 //
 355 // VisualAge C++ V4.0 cannot have any external linkage const decs
 356 // in headers included by more than one primary source
 357 //
 358 extern const int wxInvalidOffset;
 359 #else
 360 const int wxInvalidOffset = -1;
 361 #endif
 362
 363 // ----------------------------------------------------------------------------
 364 // functions
 365 // ----------------------------------------------------------------------------
 366 WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
 367
 368 // does the path exist? (may have or not '/' or '\\' at the end)
 369 WXDLLIMPEXP_BASE bool wxDirExists(const wxChar *pszPathName);
 370
 371 WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
 372
 373 // Get filename
 374 WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
 375 WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
 376
 377 // Get directory
 378 WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
 379
 380 // wxString version
 381 WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path);
 382
 383 WXDLLIMPEXP_BASE void wxDos2UnixFilename(wxChar *s);
 384
 385 WXDLLIMPEXP_BASE void wxUnix2DosFilename(wxChar *s);
 386
 387 // Strip the extension, in situ
 388 WXDLLIMPEXP_BASE void wxStripExtension(wxChar *buffer);
 389 WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer);
 390
 391 // Get a temporary filename
 392 WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
 393 WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf);
 394
 395 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
 396 WXDLLIMPEXP_BASE wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
 397 WXDLLIMPEXP_BASE bool wxExpandPath(wxString& dest, const wxChar *path);
 398
 399 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
 400 // and make (if under the home tree) relative to home
 401 // [caller must copy-- volatile]
 402 WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
 403                                    const wxString& envname = wxEmptyString,
 404                                    const wxString& user = wxEmptyString);
 405
 406 // Destructive removal of /./ and /../ stuff
 407 WXDLLIMPEXP_BASE wxChar* wxRealPath(wxChar *path);
 408
 409 // Allocate a copy of the full absolute path
 410 WXDLLIMPEXP_BASE wxChar* wxCopyAbsolutePath(const wxString& path);
 411
 412 // Get first file name matching given wild card.
 413 // Flags are reserved for future use.
 414 #define wxFILE  1
 415 #define wxDIR   2
 416 WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
 417 WXDLLIMPEXP_BASE wxString wxFindNextFile();
 418
 419 // Does the pattern contain wildcards?
 420 WXDLLIMPEXP_BASE bool wxIsWild(const wxString& pattern);
 421
 422 // Does the pattern match the text (usually a filename)?
 423 // If dot_special is true, doesn't match * against . (eliminating
 424 // `hidden' dot files)
 425 WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = true);
 426
 427 // Concatenate two files to form third
 428 WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 429
 430 // Copy file1 to file2
 431 WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
 432                                  bool overwrite = true);
 433
 434 // Remove file
 435 WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
 436
 437 // Rename file
 438 WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2);
 439
 440 // Get current working directory.
 441 // If buf is NULL, allocates space using new, else
 442 // copies into buf.
 443 // IMPORTANT NOTE getcwd is know not to work under some releases
 444 // of Win32s 1.3, according to MS release notes!
 445 WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000);
 446 // new and preferred version of wxGetWorkingDirectory
 447 // NB: can't have the same name because of overloading ambiguity
 448 WXDLLIMPEXP_BASE wxString wxGetCwd();
 449
 450 // Set working directory
 451 WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
 452
 453 // Make directory
 454 WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
 455
 456 // Remove directory. Flags reserved for future use.
 457 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 458
 459 // Return the type of an open file
 460 WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd);
 461 WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(FILE *fp);
 462
 463 // compatibility defines, don't use in new code
 464 // consider removal droping 2.4 compatibility
 465 // #if WXWIN_COMPATIBILITY_2_4
 466 wxDEPRECATED( inline bool wxPathExists(const wxChar *pszPathName) );
 467 inline bool wxPathExists(const wxChar *pszPathName)
 468 {
 469     return wxDirExists(pszPathName);
 470 }
 471 // #endif //WXWIN_COMPATIBILITY_2_4
 472
 473 // ----------------------------------------------------------------------------
 474 // separators in file names
 475 // ----------------------------------------------------------------------------
 476
 477 // between file name and extension
 478 #define wxFILE_SEP_EXT        wxT('.')
 479
 480 // between drive/volume name and the path
 481 #define wxFILE_SEP_DSK        wxT(':')
 482
 483 // between the path components
 484 #define wxFILE_SEP_PATH_DOS   wxT('\\')
 485 #define wxFILE_SEP_PATH_UNIX  wxT('/')
 486 #define wxFILE_SEP_PATH_MAC   wxT(':')
 487 #define wxFILE_SEP_PATH_VMS   wxT('.') // VMS also uses '[' and ']'
 488
 489 // separator in the path list (as in PATH environment variable)
 490 // there is no PATH variable in Classic Mac OS so just use the
 491 // semicolon (it must be different from the file name separator)
 492 // NB: these are strings and not characters on purpose!
 493 #define wxPATH_SEP_DOS        wxT(";")
 494 #define wxPATH_SEP_UNIX       wxT(":")
 495 #define wxPATH_SEP_MAC        wxT(";")
 496
 497 // platform independent versions
 498 #if defined(__UNIX__) && !defined(__OS2__)
 499   // CYGWIN also uses UNIX settings
 500   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
 501   #define wxPATH_SEP          wxPATH_SEP_UNIX
 502 #elif defined(__MAC__)
 503   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_MAC
 504   #define wxPATH_SEP          wxPATH_SEP_MAC
 505 #else   // Windows and OS/2
 506   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_DOS
 507   #define wxPATH_SEP          wxPATH_SEP_DOS
 508 #endif  // Unix/Windows
 509
 510 // this is useful for wxString::IsSameAs(): to compare two file names use
 511 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
 512 #if defined(__UNIX__) && !defined(__DARWIN__) && !defined(__OS2__)
 513   #define wxARE_FILENAMES_CASE_SENSITIVE  true
 514 #else   // Windows, Mac OS and OS/2
 515   #define wxARE_FILENAMES_CASE_SENSITIVE  false
 516 #endif  // Unix/Windows
 517
 518 // is the char a path separator?
 519 inline bool wxIsPathSeparator(wxChar c)
 520 {
 521     // under DOS/Windows we should understand both Unix and DOS file separators
 522 #if ( defined(__UNIX__) && !defined(__OS2__) )|| defined(__MAC__)
 523     return c == wxFILE_SEP_PATH;
 524 #else
 525     return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;
 526 #endif
 527 }
 528
 529 // does the string ends with path separator?
 530 WXDLLIMPEXP_BASE bool wxEndsWithPathSeparator(const wxChar *pszFileName);
 531
 532 // split the full path into path (including drive for DOS), name and extension
 533 // (understands both '/' and '\\')
 534 WXDLLIMPEXP_BASE void wxSplitPath(const wxChar *pszFileName,
 535                              wxString *pstrPath,
 536                              wxString *pstrName,
 537                              wxString *pstrExt);
 538
 539 // find a file in a list of directories, returns false if not found
 540 WXDLLIMPEXP_BASE bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile);
 541
 542 // Get the OS directory if appropriate (such as the Windows directory).
 543 // On non-Windows platform, probably just return the empty string.
 544 WXDLLIMPEXP_BASE wxString wxGetOSDirectory();
 545
 546 // Get file modification time
 547 WXDLLIMPEXP_BASE time_t wxFileModificationTime(const wxString& filename);
 548
 549 // Parses the wildCard, returning the number of filters.
 550 // Returns 0 if none or if there's a problem,
 551 // The arrays will contain an equal number of items found before the error.
 552 // wildCard is in the form:
 553 // "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png"
 554 WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArrayString& descriptions, wxArrayString& filters);
 555
 556 // ----------------------------------------------------------------------------
 557 // classes
 558 // ----------------------------------------------------------------------------
 559
 560 #ifdef __UNIX__
 561
 562 // set umask to the given value in ctor and reset it to the old one in dtor
 563 class WXDLLIMPEXP_BASE wxUmaskChanger
 564 {
 565 public:
 566     // change the umask to the given one if it is not -1: this allows to write
 567     // the same code whether you really want to change umask or not, as is in
 568     // wxFileConfig::Flush() for example
 569     wxUmaskChanger(int umaskNew)
 570     {
 571         m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew);
 572     }
 573
 574     ~wxUmaskChanger()
 575     {
 576         if ( m_umaskOld != -1 )
 577             umask((mode_t)m_umaskOld);
 578     }
 579
 580 private:
 581     int m_umaskOld;
 582 };
 583
 584 // this macro expands to an "anonymous" wxUmaskChanger object under Unix and
 585 // nothing elsewhere
 586 #define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m)
 587
 588 #else // !__UNIX__
 589
 590 #define wxCHANGE_UMASK(m)
 591
 592 #endif // __UNIX__/!__UNIX__
 593
 594
 595 // Path searching
 596 class WXDLLIMPEXP_BASE wxPathList : public wxStringList
 597 {
 598 public:
 599     // avoid GCC warning about virtual functions w/o virtual dtor
 600     virtual ~wxPathList() {}
 601
 602     // Adds all paths in environment variable
 603     void AddEnvList(const wxString& envVariable);
 604
 605     void Add(const wxString& path);
 606     // Find the first full path for which the file exists
 607     wxString FindValidPath(const wxString& filename);
 608     // Find the first full path for which the file exists; ensure it's an
 609     // absolute path that gets returned.
 610     wxString FindAbsoluteValidPath(const wxString& filename);
 611     // Given full path and filename, add path to list
 612     void EnsureFileAccessible(const wxString& path);
 613     // Returns true if the path is in the list
 614     bool Member(const wxString& path);
 615
 616 private:
 617     // DECLARE_DYNAMIC_CLASS(wxPathList)
 618 };
 619
 620 #endif
 621   // _WX_FILEFN_H_