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         typedef unsigned long wxFileSize_t;
 204     #endif
 205
 206     #define   wxClose      _close
 207
 208     #if defined(__MWERKS__)
 209         #if __MSL__ >= 0x6000
 210             #define wxRead(fd, buf, nCount)  _read(fd, (void *)buf, nCount)
 211             #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)
 212         #else
 213             #define wxRead(fd, buf, nCount)\
 214                   _read(fd, (const char *)buf, nCount)
 215             #define wxWrite(fd, buf, nCount)\
 216                   _write(fd, (const char *)buf, nCount)
 217         #endif
 218     #else
 219         #if defined(__DMC__) || defined(__WATCOMC__)
 220             #define wxRead        ::read
 221             #define wxWrite       ::write
 222         #else
 223             #define wxRead        _read
 224             #define wxWrite        _write
 225         #endif
 226     #endif
 227     #if wxHAS_HUGE_FILES
 228         #define   wxSeek      _lseeki64
 229         #define   wxLseek      _lseeki64
 230         #define   wxTell       _telli64
 231     #else
 232         #define   wxSeek      _lseek
 233         #define   wxLseek      _lseek
 234         #define   wxTell       _tell
 235     #endif
 236     #define   wxFsync      _commit
 237     #if defined(__WATCOMC__)
 238         #define   wxEof        ::eof
 239     #else
 240         #define   wxEof        _eof
 241     #endif
 242
 243     #if wxUSE_UNICODE
 244         #if wxUSE_UNICODE_MSLU
 245             #define   wxOpen       wxMSLU__wopen
 246
 247             #define   wxAccess     wxMSLU__waccess
 248             #define   wxMkDir      wxMSLU__wmkdir
 249             #define   wxRmDir      wxMSLU__wrmdir
 250             #if wxHAS_HUGE_FILES
 251                 #define   wxStat       wxMSLU__wstati64
 252             #else
 253                 #define   wxStat       wxMSLU__wstat
 254             #endif
 255         #else
 256             #define   wxOpen       _wopen
 257             #define   wxAccess     _waccess
 258             #define   wxMkDir      _wmkdir
 259             #define   wxRmDir      _wrmdir
 260             #if wxHAS_HUGE_FILES
 261                 #define   wxStat       _wstati64
 262             #else
 263                 #define   wxStat       _wstat
 264             #endif
 265         #endif
 266     #else // !wxUSE_UNICODE
 267         #ifdef __BORLANDC__
 268             #define   wxOpen       open
 269         #else
 270             #define   wxOpen       _open
 271         #endif
 272         #define   wxAccess     _access
 273         #define   wxMkDir      _mkdir
 274         #ifdef __WATCOMC__
 275             #define   wxRmDir      rmdir
 276         #else
 277             #define   wxRmDir      _rmdir
 278         #endif
 279         #if wxHAS_HUGE_FILES
 280             #define   wxStat       _stati64
 281         #else
 282             #define   wxStat       _stat
 283         #endif
 284     #endif
 285
 286     // types: notice that Watcom is the only compiler to have a wide char
 287     // version of struct stat as well as a wide char stat function variant
 288     #if wxHAS_HUGE_FILES
 289         #if wxUSE_UNICODE && defined(__WATCOMC__)
 290             #define   wxStructStat struct _wstati64
 291         #else
 292             #define   wxStructStat struct _stati64
 293         #endif
 294     #else
 295         #if wxUSE_UNICODE && defined(__WATCOMC__)
 296             #define   wxStructStat struct _wstat
 297         #else
 298             #define   wxStructStat struct _stat
 299         #endif
 300     #endif
 301
 302     // constants (unless already defined by the user code)
 303     #if !defined(__BORLANDC__) && !defined(__WATCOMC__)
 304         #ifndef O_RDONLY
 305             #define   O_RDONLY    _O_RDONLY
 306             #define   O_WRONLY    _O_WRONLY
 307             #define   O_RDWR      _O_RDWR
 308             #define   O_EXCL      _O_EXCL
 309             #define   O_CREAT     _O_CREAT
 310             #define   O_BINARY    _O_BINARY
 311         #endif
 312
 313         #ifndef S_IFMT
 314             #define   S_IFMT      _S_IFMT
 315             #define   S_IFDIR     _S_IFDIR
 316             #define   S_IFREG     _S_IFREG
 317         #endif
 318     #endif
 319
 320     // It's a private define, undefine it so nobody gets tempted to use it
 321     #undef wxHAS_HUGE_FILES
 322 #else // Unix platforms using configure
 323     typedef off_t wxFileOffset;
 324     #ifdef _LARGE_FILES
 325         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 326         wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
 327                                 BadFileSizeType );
 328         typedef unsigned wxLongLong_t wxFileSize_t;
 329     #else
 330         #define wxFileOffsetFmtSpec _T("")
 331         typedef unsigned long wxFileSize_t;
 332     #endif
 333     // functions
 334     #define   wxClose      close
 335     #define   wxRead       ::read
 336     #define   wxWrite      ::write
 337     #define   wxLseek      lseek
 338     #define   wxSeek       lseek
 339     #define   wxFsync      commit
 340     #define   wxEof        eof
 341
 342     #define   wxMkDir      mkdir
 343     #define   wxRmDir      rmdir
 344
 345     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 346
 347     #define   wxStructStat struct stat
 348
 349     #if wxUSE_UNICODE
 350         #define wxNEED_WX_UNISTD_H
 351         #if defined(__DMC__)
 352             typedef unsigned long mode_t;
 353         #endif
 354         WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf );
 355         WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode );
 356         WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode );
 357     #else
 358         #define   wxOpen       open
 359         #define   wxStat       stat
 360         #define   wxAccess     access
 361     #endif
 362 #endif // platforms
 363
 364 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 365 //
 366 // VisualAge C++ V4.0 cannot have any external linkage const decs
 367 // in headers included by more than one primary source
 368 //
 369 extern const wxFileSize_t wxInvalidOffset;
 370 #else
 371 const wxFileSize_t wxInvalidOffset = (wxFileSize_t)-1;
 372 #endif
 373
 374 // ----------------------------------------------------------------------------
 375 // functions
 376 // ----------------------------------------------------------------------------
 377 WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
 378
 379 // does the path exist? (may have or not '/' or '\\' at the end)
 380 WXDLLIMPEXP_BASE bool wxPathExists(const wxChar *pszPathName);
 381
 382 WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
 383
 384 // Get filename
 385 WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
 386 WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
 387
 388 // Get directory
 389 WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
 390
 391 // wxString version
 392 WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path);
 393
 394 WXDLLIMPEXP_BASE void wxDos2UnixFilename(wxChar *s);
 395
 396 WXDLLIMPEXP_BASE void wxUnix2DosFilename(wxChar *s);
 397
 398 // Strip the extension, in situ
 399 WXDLLIMPEXP_BASE void wxStripExtension(wxChar *buffer);
 400 WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer);
 401
 402 // Get a temporary filename
 403 WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
 404 WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf);
 405
 406 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
 407 WXDLLIMPEXP_BASE wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
 408 WXDLLIMPEXP_BASE bool wxExpandPath(wxString& dest, const wxChar *path);
 409
 410 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
 411 // and make (if under the home tree) relative to home
 412 // [caller must copy-- volatile]
 413 WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
 414                                    const wxString& envname = wxEmptyString,
 415                                    const wxString& user = wxEmptyString);
 416
 417 // Destructive removal of /./ and /../ stuff
 418 WXDLLIMPEXP_BASE wxChar* wxRealPath(wxChar *path);
 419
 420 // Allocate a copy of the full absolute path
 421 WXDLLIMPEXP_BASE wxChar* wxCopyAbsolutePath(const wxString& path);
 422
 423 // Get first file name matching given wild card.
 424 // Flags are reserved for future use.
 425 #define wxFILE  1
 426 #define wxDIR   2
 427 WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
 428 WXDLLIMPEXP_BASE wxString wxFindNextFile();
 429
 430 // Does the pattern contain wildcards?
 431 WXDLLIMPEXP_BASE bool wxIsWild(const wxString& pattern);
 432
 433 // Does the pattern match the text (usually a filename)?
 434 // If dot_special is true, doesn't match * against . (eliminating
 435 // `hidden' dot files)
 436 WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = true);
 437
 438 // Concatenate two files to form third
 439 WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 440
 441 // Copy file1 to file2
 442 WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
 443                                  bool overwrite = true);
 444
 445 // Remove file
 446 WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
 447
 448 // Rename file
 449 WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2);
 450
 451 // Get current working directory.
 452 // If buf is NULL, allocates space using new, else
 453 // copies into buf.
 454 // IMPORTANT NOTE getcwd is know not to work under some releases
 455 // of Win32s 1.3, according to MS release notes!
 456 WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000);
 457 // new and preferred version of wxGetWorkingDirectory
 458 // NB: can't have the same name because of overloading ambiguity
 459 WXDLLIMPEXP_BASE wxString wxGetCwd();
 460
 461 // Set working directory
 462 WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
 463
 464 // Make directory
 465 WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
 466
 467 // Remove directory. Flags reserved for future use.
 468 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 469
 470 // compatibility defines, don't use in new code
 471 #define wxDirExists wxPathExists
 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_