include/wx/filefn.h

   1 /////////////////////////////////////////////////////////////////////////////
   2 // Name:        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 #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
  16     #pragma interface "filefn.h"
  17 #endif
  18
  19 #include "wx/list.h"
  20 #include "wx/arrstr.h"
  21
  22 #ifdef __WXWINCE__
  23     #include "wx/msw/wince/time.h"
  24     #include "wx/msw/private.h"
  25 #else
  26     #include <time.h>
  27 #endif
  28
  29 #ifdef __WXWINCE__
  30 // Nothing
  31 #elif !defined(__MWERKS__)
  32     #include <sys/types.h>
  33     #include <sys/stat.h>
  34 #else
  35     #ifdef __MACH__
  36         #include <sys/types.h>
  37         #include <utime.h>
  38         #include <sys/stat.h>
  39         #include <unistd.h>
  40     #else
  41         #include <stat.h>
  42         #include <unistd.h>
  43         #include <unix.h>
  44     #endif
  45 #endif
  46
  47 #ifdef __OS2__
  48 // need to check for __OS2__ first since currently both
  49 // __OS2__ and __UNIX__ are defined.
  50     #include <process.h>
  51     #include "wx/os2/private.h"
  52     #include <io.h>
  53     #ifdef __EMX__
  54         #include <unistd.h>
  55     #endif
  56 #elif defined(__UNIX__)
  57     #include <unistd.h>
  58     #include <dirent.h>
  59 #endif
  60
  61 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  62 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__)
  63     #include <direct.h>
  64     #include <dos.h>
  65     #include <io.h>
  66 #endif // __WINDOWS__
  67 #endif // native Win compiler
  68
  69 #if defined(__DOS__)
  70     #ifdef __WATCOMC__
  71         #include <direct.h>
  72         #include <dos.h>
  73         #include <io.h>
  74     #endif
  75     #ifdef __DJGPP__
  76         #include <io.h>
  77         #include <unistd.h>
  78     #endif
  79 #endif
  80
  81 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  82                     // this (3.1 I believe) and how to test for it.
  83                     // If this works for Borland 4.0 as well, then no worries.
  84     #include <dir.h>
  85 #endif
  86
  87 #ifdef __SALFORDC__
  88     #include <dir.h>
  89     #include <unix.h>
  90 #endif
  91
  92 #ifndef __WXWINCE__
  93     #include  <fcntl.h>       // O_RDONLY &c
  94 #endif
  95 // ----------------------------------------------------------------------------
  96 // constants
  97 // ----------------------------------------------------------------------------
  98
  99 #ifdef __WXWINCE__
 100     typedef long off_t;
 101 #else
 102     // define off_t
 103     #if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
 104         #include  <sys/types.h>
 105     #else
 106         typedef long off_t;
 107     #endif
 108 #endif
 109
 110 #if (defined(__VISUALC__) && !defined(__WXWINCE__)) || ( defined(__MWERKS__) && defined( __INTEL__) )
 111     typedef _off_t off_t;
 112 #elif defined(__SYMANTEC__)
 113     typedef long off_t;
 114 #elif defined(__MWERKS__) && !defined(__INTEL__) && !defined(__MACH__)
 115     typedef long off_t;
 116 #endif
 117
 118 enum wxSeekMode
 119 {
 120   wxFromStart,
 121   wxFromCurrent,
 122   wxFromEnd
 123 };
 124
 125 // ----------------------------------------------------------------------------
 126 // declare our versions of low level file functions: some compilers prepend
 127 // underscores to the usual names, some also have Unicode versions of them
 128 // ----------------------------------------------------------------------------
 129
 130 // Wrappers around Win32 api functions like CreateFile, ReadFile and such
 131 // Implemented in filefnwce.cpp
 132 #if defined( __WXWINCE__)
 133     typedef __int64 wxFileOffset;
 134     typedef unsigned __int64 wxFileSize_t;
 135     #define wxFileOffsetFmtSpec _("I64")
 136     int wxOpen(const wxChar *filename, int oflag, int WXUNUSED(pmode));
 137     int wxAccess(const wxChar *name, int WXUNUSED(how));
 138     int wxClose(int fd);
 139     int wxFsync(int WXUNUSED(fd));
 140     int wxRead(int fd, void *buf, unsigned int count);
 141     int wxWrite(int fd, const void *buf, unsigned int count);
 142     int wxEof(int fd);
 143     wxFileOffset wxSeek(int fd, wxFileOffset offset, int origin);
 144     #define wxLSeek wxSeek
 145     wxFileOffset wxTell(int fd);
 146
 147     #if wxUSE_UNICODE
 148         #if wxUSE_UNICODE_MSLU
 149             #define   wxMkDir      wxMSLU__wmkdir
 150             #define   wxRmDir      wxMSLU__wrmdir
 151             #define   wxStat       wxMSLU__wstat
 152         #else
 153             #define   wxMkDir      _wmkdir
 154             #define   wxRmDir      _wrmdir
 155             #define   wxStat       _wstat
 156         #endif
 157     #else // !wxUSE_UNICODE
 158         #define   wxMkDir      _mkdir
 159         #ifdef __WATCOMC__
 160             #define   wxRmDir      rmdir
 161         #else
 162             #define   wxRmDir      _rmdir
 163         #endif
 164         #define   wxStat       _stat
 165     #endif
 166     #define   wxStructStat struct _stat
 167
 168 // Microsoft compiler loves underscores, feed them to it
 169 #elif defined( __VISUALC__ ) \
 170     || ( defined(__MINGW32__) && !defined(__WINE__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
 171     || ( defined(__MWERKS__) && defined(__WXMSW__) ) \
 172     || ( defined(__DMC__) && defined(__WXMSW__) ) \
 173     || ( defined(__WATCOMC__) && defined(__WXMSW__) )
 174
 175     // detect compilers which have support for huge files (currently only
 176     // Digital Mars doesn't)
 177     #include "wx/msw/private.h"
 178
 179     #undef wxHAS_HUGE_FILES
 180     #if defined(__MINGW32__)
 181         #define wxHAS_HUGE_FILES 1
 182     #elif defined(__MWERKS__)
 183         #define wxHAS_HUGE_FILES 0
 184     #elif defined(__DMC__)
 185         #define wxHAS_HUGE_FILES 0
 186     #elif ((_INTEGRAL_MAX_BITS >= 64) || defined(_LARGE_FILES))
 187         #define wxHAS_HUGE_FILES 1
 188     #else
 189         #define wxHAS_HUGE_FILES 0
 190     #endif
 191
 192     // functions
 193     #if defined(__BORLANDC__) || defined(__WATCOMC__)
 194         #define   _tell        tell
 195     #endif
 196
 197     #if wxHAS_HUGE_FILES
 198         typedef wxLongLong_t wxFileOffset;
 199         typedef unsigned wxLongLong_t wxFileSize_t;
 200         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 201     #else
 202         typedef off_t wxFileOffset;
 203         #if defined(__DMC__)
 204             typedef unsigned long wxFileSize_t;
 205         #else
 206             typedef unsigned off_t wxFileSize_t;
 207         #endif
 208         #define wxFileOffsetFmtSpec _("")
 209     #endif
 210
 211     #define   wxClose      _close
 212
 213     #if defined(__MWERKS__)
 214         #if __MSL__ >= 0x6000
 215             #define wxRead(fd, buf, nCount)  _read(fd, (void *)buf, nCount)
 216             #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)
 217         #else
 218             #define wxRead(fd, buf, nCount)\
 219                   _read(fd, (const char *)buf, nCount)
 220             #define wxWrite(fd, buf, nCount)\
 221                   _write(fd, (const char *)buf, nCount)
 222         #endif
 223     #else
 224         #if defined(__DMC__) || defined(__WATCOMC__)
 225             #define wxRead        ::read
 226             #define wxWrite       ::write
 227         #else
 228             #define wxRead        _read
 229             #define wxWrite        _write
 230         #endif
 231     #endif
 232     #if wxHAS_HUGE_FILES
 233         #define   wxSeek      _lseeki64
 234         #define   wxLseek      _lseeki64
 235         #define   wxTell       _telli64
 236     #else
 237         #define   wxSeek      _lseek
 238         #define   wxLseek      _lseek
 239         #define   wxTell       _tell
 240     #endif
 241     #define   wxFsync      _commit
 242     #if defined(__WATCOMC__)
 243         #define   wxEof        ::eof
 244     #else
 245         #define   wxEof        _eof
 246     #endif
 247
 248     #if wxUSE_UNICODE
 249         #if wxUSE_UNICODE_MSLU
 250             #define   wxOpen       wxMSLU__wopen
 251
 252             #define   wxAccess     wxMSLU__waccess
 253             #define   wxMkDir      wxMSLU__wmkdir
 254             #define   wxRmDir      wxMSLU__wrmdir
 255             #if wxHAS_HUGE_FILES
 256                 #define   wxStat       wxMSLU__wstati64
 257             #else
 258                 #define   wxStat       wxMSLU__wstat
 259             #endif
 260         #else
 261             #define   wxOpen       _wopen
 262             #define   wxAccess     _waccess
 263             #define   wxMkDir      _wmkdir
 264             #define   wxRmDir      _wrmdir
 265             #if wxHAS_HUGE_FILES
 266                 #define   wxStat       _wstati64
 267             #else
 268                 #define   wxStat       _wstat
 269             #endif
 270         #endif
 271     #else // !wxUSE_UNICODE
 272         #ifdef __BORLANDC__
 273             #define   wxOpen       open
 274         #else
 275             #define   wxOpen       _open
 276         #endif
 277         #define   wxAccess     _access
 278         #define   wxMkDir      _mkdir
 279         #ifdef __WATCOMC__
 280             #define   wxRmDir      rmdir
 281         #else
 282             #define   wxRmDir      _rmdir
 283         #endif
 284         #if wxHAS_HUGE_FILES
 285             #define   wxStat       _stati64
 286         #else
 287             #define   wxStat       _stat
 288         #endif
 289     #endif
 290
 291     // types: notice that Watcom is the only compiler to have a wide char
 292     // version of struct stat as well as a wide char stat function variant
 293     #if wxHAS_HUGE_FILES
 294         #if wxUSE_UNICODE && defined(__WATCOMC__)
 295             #define   wxStructStat struct _wstati64
 296         #else
 297             #define   wxStructStat struct _stati64
 298         #endif
 299     #else
 300         #if wxUSE_UNICODE && defined(__WATCOMC__)
 301             #define   wxStructStat struct _wstat
 302         #else
 303             #define   wxStructStat struct _stat
 304         #endif
 305     #endif
 306
 307     // constants (unless already defined by the user code)
 308     #if !defined(__BORLANDC__) && !defined(__WATCOMC__)
 309         #ifndef O_RDONLY
 310             #define   O_RDONLY    _O_RDONLY
 311             #define   O_WRONLY    _O_WRONLY
 312             #define   O_RDWR      _O_RDWR
 313             #define   O_EXCL      _O_EXCL
 314             #define   O_CREAT     _O_CREAT
 315             #define   O_BINARY    _O_BINARY
 316         #endif
 317
 318         #ifndef S_IFMT
 319             #define   S_IFMT      _S_IFMT
 320             #define   S_IFDIR     _S_IFDIR
 321             #define   S_IFREG     _S_IFREG
 322         #endif
 323     #endif
 324
 325     // It's a private define, undefine it so nobody gets tempted to use it
 326     #undef wxHAS_HUGE_FILES
 327 #else // Unix platforms using configure
 328     typedef off_t wxFileOffset;
 329     #ifdef _LARGE_FILES
 330         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 331         wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
 332                                 BadFileSizeType );
 333         typedef unsigned wxLongLong_t wxFileSize_t;
 334     #else
 335         #define wxFileOffsetFmtSpec _T("")
 336         typedef unsigned long wxFileSize_t;
 337     #endif
 338     // functions
 339     #define   wxClose      close
 340     #define   wxRead       ::read
 341     #define   wxWrite      ::write
 342     #define   wxLseek      lseek
 343     #define   wxSeek       lseek
 344     #define   wxFsync      commit
 345     #define   wxEof        eof
 346
 347     #define   wxMkDir      mkdir
 348     #define   wxRmDir      rmdir
 349
 350     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 351
 352     #define   wxStructStat struct stat
 353
 354     #if wxUSE_UNICODE
 355         #define wxNEED_WX_UNISTD_H
 356         #if defined(__DMC__)
 357             typedef unsigned long mode_t;
 358         #endif
 359         WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf );
 360         WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode );
 361         WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode );
 362     #else
 363         #define   wxOpen       open
 364         #define   wxStat       stat
 365         #define   wxAccess     access
 366     #endif
 367 #endif // platforms
 368
 369 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 370 //
 371 // VisualAge C++ V4.0 cannot have any external linkage const decs
 372 // in headers included by more than one primary source
 373 //
 374 extern const wxFileSize_t wxInvalidOffset;
 375 #else
 376 const wxFileSize_t wxInvalidOffset = (wxFileSize_t)-1;
 377 #endif
 378
 379 // ----------------------------------------------------------------------------
 380 // functions
 381 // ----------------------------------------------------------------------------
 382 WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
 383
 384 // does the path exist? (may have or not '/' or '\\' at the end)
 385 WXDLLIMPEXP_BASE bool wxPathExists(const wxChar *pszPathName);
 386
 387 WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
 388
 389 // Get filename
 390 WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
 391 WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
 392
 393 // Get directory
 394 WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
 395
 396 // wxString version
 397 WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path);
 398
 399 WXDLLIMPEXP_BASE void wxDos2UnixFilename(wxChar *s);
 400
 401 WXDLLIMPEXP_BASE void wxUnix2DosFilename(wxChar *s);
 402
 403 // Strip the extension, in situ
 404 WXDLLIMPEXP_BASE void wxStripExtension(wxChar *buffer);
 405 WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer);
 406
 407 // Get a temporary filename
 408 WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
 409 WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf);
 410
 411 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
 412 WXDLLIMPEXP_BASE wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
 413 WXDLLIMPEXP_BASE bool wxExpandPath(wxString& dest, const wxChar *path);
 414
 415 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
 416 // and make (if under the home tree) relative to home
 417 // [caller must copy-- volatile]
 418 WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
 419                                    const wxString& envname = wxEmptyString,
 420                                    const wxString& user = wxEmptyString);
 421
 422 // Destructive removal of /./ and /../ stuff
 423 WXDLLIMPEXP_BASE wxChar* wxRealPath(wxChar *path);
 424
 425 // Allocate a copy of the full absolute path
 426 WXDLLIMPEXP_BASE wxChar* wxCopyAbsolutePath(const wxString& path);
 427
 428 // Get first file name matching given wild card.
 429 // Flags are reserved for future use.
 430 #define wxFILE  1
 431 #define wxDIR   2
 432 WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
 433 WXDLLIMPEXP_BASE wxString wxFindNextFile();
 434
 435 // Does the pattern contain wildcards?
 436 WXDLLIMPEXP_BASE bool wxIsWild(const wxString& pattern);
 437
 438 // Does the pattern match the text (usually a filename)?
 439 // If dot_special is true, doesn't match * against . (eliminating
 440 // `hidden' dot files)
 441 WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = true);
 442
 443 // Concatenate two files to form third
 444 WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 445
 446 // Copy file1 to file2
 447 WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
 448                                  bool overwrite = true);
 449
 450 // Remove file
 451 WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
 452
 453 // Rename file
 454 WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2);
 455
 456 // Get current working directory.
 457 // If buf is NULL, allocates space using new, else
 458 // copies into buf.
 459 // IMPORTANT NOTE getcwd is know not to work under some releases
 460 // of Win32s 1.3, according to MS release notes!
 461 WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000);
 462 // new and preferred version of wxGetWorkingDirectory
 463 // NB: can't have the same name because of overloading ambiguity
 464 WXDLLIMPEXP_BASE wxString wxGetCwd();
 465
 466 // Set working directory
 467 WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
 468
 469 // Make directory
 470 WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
 471
 472 // Remove directory. Flags reserved for future use.
 473 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 474
 475 // compatibility defines, don't use in new code
 476 #define wxDirExists wxPathExists
 477
 478 // ----------------------------------------------------------------------------
 479 // separators in file names
 480 // ----------------------------------------------------------------------------
 481
 482 // between file name and extension
 483 #define wxFILE_SEP_EXT        wxT('.')
 484
 485 // between drive/volume name and the path
 486 #define wxFILE_SEP_DSK        wxT(':')
 487
 488 // between the path components
 489 #define wxFILE_SEP_PATH_DOS   wxT('\\')
 490 #define wxFILE_SEP_PATH_UNIX  wxT('/')
 491 #define wxFILE_SEP_PATH_MAC   wxT(':')
 492 #define wxFILE_SEP_PATH_VMS   wxT('.') // VMS also uses '[' and ']'
 493
 494 // separator in the path list (as in PATH environment variable)
 495 // there is no PATH variable in Classic Mac OS so just use the
 496 // semicolon (it must be different from the file name separator)
 497 // NB: these are strings and not characters on purpose!
 498 #define wxPATH_SEP_DOS        wxT(";")
 499 #define wxPATH_SEP_UNIX       wxT(":")
 500 #define wxPATH_SEP_MAC        wxT(";")
 501
 502 // platform independent versions
 503 #if defined(__UNIX__) && !defined(__OS2__)
 504   // CYGWIN also uses UNIX settings
 505   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
 506   #define wxPATH_SEP          wxPATH_SEP_UNIX
 507 #elif defined(__MAC__)
 508   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_MAC
 509   #define wxPATH_SEP          wxPATH_SEP_MAC
 510 #else   // Windows and OS/2
 511   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_DOS
 512   #define wxPATH_SEP          wxPATH_SEP_DOS
 513 #endif  // Unix/Windows
 514
 515 // this is useful for wxString::IsSameAs(): to compare two file names use
 516 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
 517 #if defined(__UNIX__) && !defined(__DARWIN__) && !defined(__OS2__)
 518   #define wxARE_FILENAMES_CASE_SENSITIVE  true
 519 #else   // Windows, Mac OS and OS/2
 520   #define wxARE_FILENAMES_CASE_SENSITIVE  false
 521 #endif  // Unix/Windows
 522
 523 // is the char a path separator?
 524 inline bool wxIsPathSeparator(wxChar c)
 525 {
 526     // under DOS/Windows we should understand both Unix and DOS file separators
 527 #if ( defined(__UNIX__) && !defined(__OS2__) )|| defined(__MAC__)
 528     return c == wxFILE_SEP_PATH;
 529 #else
 530     return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;
 531 #endif
 532 }
 533
 534 // does the string ends with path separator?
 535 WXDLLIMPEXP_BASE bool wxEndsWithPathSeparator(const wxChar *pszFileName);
 536
 537 // split the full path into path (including drive for DOS), name and extension
 538 // (understands both '/' and '\\')
 539 WXDLLIMPEXP_BASE void wxSplitPath(const wxChar *pszFileName,
 540                              wxString *pstrPath,
 541                              wxString *pstrName,
 542                              wxString *pstrExt);
 543
 544 // find a file in a list of directories, returns false if not found
 545 WXDLLIMPEXP_BASE bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile);
 546
 547 // Get the OS directory if appropriate (such as the Windows directory).
 548 // On non-Windows platform, probably just return the empty string.
 549 WXDLLIMPEXP_BASE wxString wxGetOSDirectory();
 550
 551 // Get file modification time
 552 WXDLLIMPEXP_BASE time_t wxFileModificationTime(const wxString& filename);
 553
 554 // Parses the wildCard, returning the number of filters.
 555 // Returns 0 if none or if there's a problem,
 556 // The arrays will contain an equal number of items found before the error.
 557 // wildCard is in the form:
 558 // "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png"
 559 WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArrayString& descriptions, wxArrayString& filters);
 560
 561 // ----------------------------------------------------------------------------
 562 // classes
 563 // ----------------------------------------------------------------------------
 564
 565 #ifdef __UNIX__
 566
 567 // set umask to the given value in ctor and reset it to the old one in dtor
 568 class WXDLLIMPEXP_BASE wxUmaskChanger
 569 {
 570 public:
 571     // change the umask to the given one if it is not -1: this allows to write
 572     // the same code whether you really want to change umask or not, as is in
 573     // wxFileConfig::Flush() for example
 574     wxUmaskChanger(int umaskNew)
 575     {
 576         m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew);
 577     }
 578
 579     ~wxUmaskChanger()
 580     {
 581         if ( m_umaskOld != -1 )
 582             umask((mode_t)m_umaskOld);
 583     }
 584
 585 private:
 586     int m_umaskOld;
 587 };
 588
 589 // this macro expands to an "anonymous" wxUmaskChanger object under Unix and
 590 // nothing elsewhere
 591 #define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m)
 592
 593 #else // !__UNIX__
 594
 595 #define wxCHANGE_UMASK(m)
 596
 597 #endif // __UNIX__/!__UNIX__
 598
 599
 600 // Path searching
 601 class WXDLLIMPEXP_BASE wxPathList : public wxStringList
 602 {
 603 public:
 604     // avoid GCC warning about virtual functions w/o virtual dtor
 605     virtual ~wxPathList() {}
 606
 607     // Adds all paths in environment variable
 608     void AddEnvList(const wxString& envVariable);
 609
 610     void Add(const wxString& path);
 611     // Find the first full path for which the file exists
 612     wxString FindValidPath(const wxString& filename);
 613     // Find the first full path for which the file exists; ensure it's an
 614     // absolute path that gets returned.
 615     wxString FindAbsoluteValidPath(const wxString& filename);
 616     // Given full path and filename, add path to list
 617     void EnsureFileAccessible(const wxString& path);
 618     // Returns true if the path is in the list
 619     bool Member(const wxString& path);
 620
 621 private:
 622     // DECLARE_DYNAMIC_CLASS(wxPathList)
 623 };
 624
 625 #endif
 626   // _WX_FILEFN_H_