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     #ifdef __WATCOMC__
  53         #include <direct.h>
  54     #endif
  55     #include <io.h>
  56     #ifdef __EMX__
  57         #include <unistd.h>
  58     #endif
  59 #elif defined(__UNIX__)
  60     #include <unistd.h>
  61     #include <dirent.h>
  62 #endif
  63
  64 #if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
  65 #if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__) && !defined(__CYGWIN__)
  66     #include <direct.h>
  67     #include <dos.h>
  68     #include <io.h>
  69 #endif // __WINDOWS__
  70 #endif // native Win compiler
  71
  72 #if defined(__DOS__)
  73     #ifdef __WATCOMC__
  74         #include <direct.h>
  75         #include <dos.h>
  76         #include <io.h>
  77     #endif
  78     #ifdef __DJGPP__
  79         #include <io.h>
  80         #include <unistd.h>
  81     #endif
  82 #endif
  83
  84 #ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
  85                     // this (3.1 I believe) and how to test for it.
  86                     // If this works for Borland 4.0 as well, then no worries.
  87     #include <dir.h>
  88 #endif
  89
  90 #ifdef __SALFORDC__
  91     #include <dir.h>
  92     #include <unix.h>
  93 #endif
  94
  95 #ifndef __WXWINCE__
  96     #include  <fcntl.h>       // O_RDONLY &c
  97 #endif
  98 // ----------------------------------------------------------------------------
  99 // constants
 100 // ----------------------------------------------------------------------------
 101
 102 #ifdef __WXWINCE__
 103     typedef long off_t;
 104 #else
 105     // define off_t
 106     #if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
 107         #include  <sys/types.h>
 108     #else
 109         typedef long off_t;
 110     #endif
 111 #endif
 112
 113 #if (defined(__VISUALC__) && !defined(__WXWINCE__)) || ( defined(__MWERKS__) && defined( __INTEL__) )
 114     typedef _off_t off_t;
 115 #elif defined(__SYMANTEC__)
 116     typedef long off_t;
 117 #elif defined(__MWERKS__) && !defined(__INTEL__) && !defined(__MACH__)
 118     typedef long off_t;
 119 #endif
 120
 121 enum wxSeekMode
 122 {
 123   wxFromStart,
 124   wxFromCurrent,
 125   wxFromEnd
 126 };
 127
 128 enum wxFileKind
 129 {
 130   wxFILE_KIND_UNKNOWN,
 131   wxFILE_KIND_DISK,     // a file supporting seeking to arbitrary offsets
 132   wxFILE_KIND_TERMINAL, // a tty
 133   wxFILE_KIND_PIPE      // a pipe
 134 };
 135
 136 // ----------------------------------------------------------------------------
 137 // declare our versions of low level file functions: some compilers prepend
 138 // underscores to the usual names, some also have Unicode versions of them
 139 // ----------------------------------------------------------------------------
 140
 141 // Wrappers around Win32 api functions like CreateFile, ReadFile and such
 142 // Implemented in filefnwce.cpp
 143 #if defined( __WXWINCE__)
 144     typedef __int64 wxFileOffset;
 145     #define wxFileOffsetFmtSpec _("I64")
 146     int wxOpen(const wxChar *filename, int oflag, int WXUNUSED(pmode));
 147     int wxAccess(const wxChar *name, int WXUNUSED(how));
 148     int wxClose(int fd);
 149     int wxFsync(int WXUNUSED(fd));
 150     int wxRead(int fd, void *buf, unsigned int count);
 151     int wxWrite(int fd, const void *buf, unsigned int count);
 152     int wxEof(int fd);
 153     wxFileOffset wxSeek(int fd, wxFileOffset offset, int origin);
 154     #define wxLSeek wxSeek
 155     wxFileOffset wxTell(int fd);
 156
 157     // always Unicode under WinCE
 158     #define   wxMkDir      _wmkdir
 159     #define   wxRmDir      _wrmdir
 160     #define   wxStat       _wstat
 161     #define   wxStructStat struct _stat
 162
 163 // Microsoft compiler loves underscores, feed them to it
 164 #elif defined( __VISUALC__ ) \
 165     || ( defined(__MINGW32__) && !defined(__WINE__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
 166     || ( defined(__MWERKS__) && defined(__WXMSW__) ) \
 167     || ( defined(__DMC__) && defined(__WXMSW__) ) \
 168     || ( defined(__WATCOMC__) && defined(__WXMSW__) )
 169
 170     // detect compilers which have support for huge files (currently only
 171     // Digital Mars doesn't)
 172     #ifndef __WXPALMOS__
 173     #include "wx/msw/private.h"
 174     #endif
 175
 176     #undef wxHAS_HUGE_FILES
 177     #if defined(__MINGW32__)
 178         #define wxHAS_HUGE_FILES 1
 179     #elif defined(__MWERKS__)
 180         #define wxHAS_HUGE_FILES 0
 181     #elif defined(__DMC__)
 182         #define wxHAS_HUGE_FILES 0
 183     #elif ((_INTEGRAL_MAX_BITS >= 64) || defined(_LARGE_FILES))
 184         #define wxHAS_HUGE_FILES 1
 185     #else
 186         #define wxHAS_HUGE_FILES 0
 187     #endif
 188
 189     // functions
 190     #if defined(__BORLANDC__) || defined(__WATCOMC__)
 191         #define   _tell        tell
 192     #endif
 193
 194     #if wxHAS_HUGE_FILES
 195         typedef wxLongLong_t wxFileOffset;
 196         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 197     #else
 198         typedef off_t wxFileOffset;
 199     #endif
 200
 201     #define   wxClose      _close
 202
 203     #if defined(__MWERKS__)
 204         #if __MSL__ >= 0x6000
 205             #define wxRead(fd, buf, nCount)  _read(fd, (void *)buf, nCount)
 206             #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount)
 207         #else
 208             #define wxRead(fd, buf, nCount)\
 209                   _read(fd, (const char *)buf, nCount)
 210             #define wxWrite(fd, buf, nCount)\
 211                   _write(fd, (const char *)buf, nCount)
 212         #endif
 213     #else
 214         #if defined(__DMC__) || defined(__WATCOMC__)
 215             #define wxRead        ::read
 216             #define wxWrite       ::write
 217         #else
 218             #define wxRead        _read
 219             #define wxWrite        _write
 220         #endif
 221     #endif
 222     #if wxHAS_HUGE_FILES
 223         #define   wxSeek      _lseeki64
 224         #define   wxLseek      _lseeki64
 225         #define   wxTell       _telli64
 226     #else
 227         #define   wxSeek      _lseek
 228         #define   wxLseek      _lseek
 229         #define   wxTell       _tell
 230     #endif
 231     #define   wxFsync      _commit
 232     #if defined(__WATCOMC__)
 233         #define   wxEof        ::eof
 234     #else
 235         #define   wxEof        _eof
 236     #endif
 237
 238     #if wxUSE_UNICODE
 239         #if wxUSE_UNICODE_MSLU
 240             #define   wxOpen       wxMSLU__wopen
 241
 242             #define   wxAccess     wxMSLU__waccess
 243             #define   wxMkDir      wxMSLU__wmkdir
 244             #define   wxRmDir      wxMSLU__wrmdir
 245             #if wxHAS_HUGE_FILES
 246                 #define   wxStat       wxMSLU__wstati64
 247             #else
 248                 #define   wxStat       wxMSLU__wstat
 249             #endif
 250         #else
 251             #define   wxOpen       _wopen
 252             #define   wxAccess     _waccess
 253             #define   wxMkDir      _wmkdir
 254             #define   wxRmDir      _wrmdir
 255             #if wxHAS_HUGE_FILES
 256                 #define   wxStat       _wstati64
 257             #else
 258                 #define   wxStat       _wstat
 259             #endif
 260         #endif
 261     #else // !wxUSE_UNICODE
 262         #ifdef __BORLANDC__
 263             #define   wxOpen       open
 264         #else
 265             #define   wxOpen       _open
 266         #endif
 267         #define   wxAccess     _access
 268         #define   wxMkDir      _mkdir
 269         #ifdef __WATCOMC__
 270             #define   wxRmDir      rmdir
 271         #else
 272             #define   wxRmDir      _rmdir
 273         #endif
 274         #if wxHAS_HUGE_FILES
 275             #define   wxStat       _stati64
 276         #else
 277             #define   wxStat       _stat
 278         #endif
 279     #endif
 280
 281     // types: notice that Watcom is the only compiler to have a wide char
 282     // version of struct stat as well as a wide char stat function variant
 283     #if wxHAS_HUGE_FILES
 284         #if wxUSE_UNICODE && defined(__WATCOMC__)
 285             #define   wxStructStat struct _wstati64
 286         #else
 287             #define   wxStructStat struct _stati64
 288         #endif
 289     #else
 290         #if wxUSE_UNICODE && defined(__WATCOMC__)
 291             #define   wxStructStat struct _wstat
 292         #else
 293             #define   wxStructStat struct _stat
 294         #endif
 295     #endif
 296
 297     // constants (unless already defined by the user code)
 298     #if !defined(__BORLANDC__) && !defined(__WATCOMC__) && !defined(__WXPALMOS__)
 299         #ifndef O_RDONLY
 300             #define   O_RDONLY    _O_RDONLY
 301             #define   O_WRONLY    _O_WRONLY
 302             #define   O_RDWR      _O_RDWR
 303             #define   O_EXCL      _O_EXCL
 304             #define   O_CREAT     _O_CREAT
 305             #define   O_BINARY    _O_BINARY
 306         #endif
 307
 308         #ifndef S_IFMT
 309             #define   S_IFMT      _S_IFMT
 310             #define   S_IFDIR     _S_IFDIR
 311             #define   S_IFREG     _S_IFREG
 312         #endif
 313     #endif
 314
 315     // It's a private define, undefine it so nobody gets tempted to use it
 316     #undef wxHAS_HUGE_FILES
 317 #else // Unix platforms using configure
 318     typedef off_t wxFileOffset;
 319     #ifdef _LARGE_FILES
 320         #define wxFileOffsetFmtSpec wxLongLongFmtSpec
 321         wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t),
 322                                 BadFileSizeType );
 323     #else
 324         #define wxFileOffsetFmtSpec _T("")
 325     #endif
 326     // functions
 327     #define   wxClose      close
 328     #define   wxRead       ::read
 329     #define   wxWrite      ::write
 330     #define   wxLseek      lseek
 331     #define   wxSeek       lseek
 332     #define   wxFsync      fsync
 333     #define   wxEof        eof
 334
 335     #define   wxMkDir      mkdir
 336     #define   wxRmDir      rmdir
 337
 338     #define   wxTell(fd)   lseek(fd, 0, SEEK_CUR)
 339
 340     #define   wxStructStat struct stat
 341
 342     #if wxUSE_UNICODE
 343         #define wxNEED_WX_UNISTD_H
 344         #if defined(__DMC__)
 345             typedef unsigned long mode_t;
 346         #endif
 347         WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf );
 348         WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode );
 349         WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode );
 350     #else
 351         #define   wxOpen       open
 352         #define   wxStat       stat
 353         #define   wxAccess     access
 354     #endif
 355 #endif // platforms
 356
 357 #if defined(__VISAGECPP__) && __IBMCPP__ >= 400
 358 //
 359 // VisualAge C++ V4.0 cannot have any external linkage const decs
 360 // in headers included by more than one primary source
 361 //
 362 extern const int wxInvalidOffset;
 363 #else
 364 const int wxInvalidOffset = -1;
 365 #endif
 366
 367 // ----------------------------------------------------------------------------
 368 // functions
 369 // ----------------------------------------------------------------------------
 370 WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
 371
 372 // does the path exist? (may have or not '/' or '\\' at the end)
 373 WXDLLIMPEXP_BASE bool wxDirExists(const wxChar *pszPathName);
 374
 375 WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
 376
 377 // Get filename
 378 WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
 379 WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
 380
 381 // Get directory
 382 WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
 383
 384 // wxString version
 385 WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path);
 386
 387 WXDLLIMPEXP_BASE void wxDos2UnixFilename(wxChar *s);
 388
 389 WXDLLIMPEXP_BASE void wxUnix2DosFilename(wxChar *s);
 390
 391 // Strip the extension, in situ
 392 WXDLLIMPEXP_BASE void wxStripExtension(wxChar *buffer);
 393 WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer);
 394
 395 // Get a temporary filename
 396 WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
 397 WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf);
 398
 399 // Expand file name (~/ and ${OPENWINHOME}/ stuff)
 400 WXDLLIMPEXP_BASE wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
 401 WXDLLIMPEXP_BASE bool wxExpandPath(wxString& dest, const wxChar *path);
 402
 403 // Contract w.r.t environment (</usr/openwin/lib, OPENWHOME> -> ${OPENWINHOME}/lib)
 404 // and make (if under the home tree) relative to home
 405 // [caller must copy-- volatile]
 406 WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
 407                                    const wxString& envname = wxEmptyString,
 408                                    const wxString& user = wxEmptyString);
 409
 410 // Destructive removal of /./ and /../ stuff
 411 WXDLLIMPEXP_BASE wxChar* wxRealPath(wxChar *path);
 412
 413 // Allocate a copy of the full absolute path
 414 WXDLLIMPEXP_BASE wxChar* wxCopyAbsolutePath(const wxString& path);
 415
 416 // Get first file name matching given wild card.
 417 // Flags are reserved for future use.
 418 #define wxFILE  1
 419 #define wxDIR   2
 420 WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
 421 WXDLLIMPEXP_BASE wxString wxFindNextFile();
 422
 423 // Does the pattern contain wildcards?
 424 WXDLLIMPEXP_BASE bool wxIsWild(const wxString& pattern);
 425
 426 // Does the pattern match the text (usually a filename)?
 427 // If dot_special is true, doesn't match * against . (eliminating
 428 // `hidden' dot files)
 429 WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern,  const wxString& text, bool dot_special = true);
 430
 431 // Concatenate two files to form third
 432 WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
 433
 434 // Copy file1 to file2
 435 WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
 436                                  bool overwrite = true);
 437
 438 // Remove file
 439 WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
 440
 441 // Rename file
 442 WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2);
 443
 444 // Get current working directory.
 445 // If buf is NULL, allocates space using new, else
 446 // copies into buf.
 447 // IMPORTANT NOTE getcwd is know not to work under some releases
 448 // of Win32s 1.3, according to MS release notes!
 449 WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000);
 450 // new and preferred version of wxGetWorkingDirectory
 451 // NB: can't have the same name because of overloading ambiguity
 452 WXDLLIMPEXP_BASE wxString wxGetCwd();
 453
 454 // Set working directory
 455 WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
 456
 457 // Make directory
 458 WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
 459
 460 // Remove directory. Flags reserved for future use.
 461 WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
 462
 463 // Return the type of an open file
 464 WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd);
 465 WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(FILE *fp);
 466
 467 // compatibility defines, don't use in new code
 468 // consider removal droping 2.4 compatibility
 469 // #if WXWIN_COMPATIBILITY_2_4
 470 wxDEPRECATED( inline bool wxPathExists(const wxChar *pszPathName) );
 471 inline bool wxPathExists(const wxChar *pszPathName)
 472 {
 473     return wxDirExists(pszPathName);
 474 }
 475 // #endif //WXWIN_COMPATIBILITY_2_4
 476
 477 // ----------------------------------------------------------------------------
 478 // separators in file names
 479 // ----------------------------------------------------------------------------
 480
 481 // between file name and extension
 482 #define wxFILE_SEP_EXT        wxT('.')
 483
 484 // between drive/volume name and the path
 485 #define wxFILE_SEP_DSK        wxT(':')
 486
 487 // between the path components
 488 #define wxFILE_SEP_PATH_DOS   wxT('\\')
 489 #define wxFILE_SEP_PATH_UNIX  wxT('/')
 490 #define wxFILE_SEP_PATH_MAC   wxT(':')
 491 #define wxFILE_SEP_PATH_VMS   wxT('.') // VMS also uses '[' and ']'
 492
 493 // separator in the path list (as in PATH environment variable)
 494 // there is no PATH variable in Classic Mac OS so just use the
 495 // semicolon (it must be different from the file name separator)
 496 // NB: these are strings and not characters on purpose!
 497 #define wxPATH_SEP_DOS        wxT(";")
 498 #define wxPATH_SEP_UNIX       wxT(":")
 499 #define wxPATH_SEP_MAC        wxT(";")
 500
 501 // platform independent versions
 502 #if defined(__UNIX__) && !defined(__OS2__)
 503   // CYGWIN also uses UNIX settings
 504   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_UNIX
 505   #define wxPATH_SEP          wxPATH_SEP_UNIX
 506 #elif defined(__MAC__)
 507   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_MAC
 508   #define wxPATH_SEP          wxPATH_SEP_MAC
 509 #else   // Windows and OS/2
 510   #define wxFILE_SEP_PATH     wxFILE_SEP_PATH_DOS
 511   #define wxPATH_SEP          wxPATH_SEP_DOS
 512 #endif  // Unix/Windows
 513
 514 // this is useful for wxString::IsSameAs(): to compare two file names use
 515 // filename1.IsSameAs(filename2, wxARE_FILENAMES_CASE_SENSITIVE)
 516 #if defined(__UNIX__) && !defined(__DARWIN__) && !defined(__OS2__)
 517   #define wxARE_FILENAMES_CASE_SENSITIVE  true
 518 #else   // Windows, Mac OS and OS/2
 519   #define wxARE_FILENAMES_CASE_SENSITIVE  false
 520 #endif  // Unix/Windows
 521
 522 // is the char a path separator?
 523 inline bool wxIsPathSeparator(wxChar c)
 524 {
 525     // under DOS/Windows we should understand both Unix and DOS file separators
 526 #if ( defined(__UNIX__) && !defined(__OS2__) )|| defined(__MAC__)
 527     return c == wxFILE_SEP_PATH;
 528 #else
 529     return c == wxFILE_SEP_PATH_DOS || c == wxFILE_SEP_PATH_UNIX;
 530 #endif
 531 }
 532
 533 // does the string ends with path separator?
 534 WXDLLIMPEXP_BASE bool wxEndsWithPathSeparator(const wxChar *pszFileName);
 535
 536 // split the full path into path (including drive for DOS), name and extension
 537 // (understands both '/' and '\\')
 538 WXDLLIMPEXP_BASE void wxSplitPath(const wxChar *pszFileName,
 539                              wxString *pstrPath,
 540                              wxString *pstrName,
 541                              wxString *pstrExt);
 542
 543 // find a file in a list of directories, returns false if not found
 544 WXDLLIMPEXP_BASE bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, const wxChar *pszFile);
 545
 546 // Get the OS directory if appropriate (such as the Windows directory).
 547 // On non-Windows platform, probably just return the empty string.
 548 WXDLLIMPEXP_BASE wxString wxGetOSDirectory();
 549
 550 // Get file modification time
 551 WXDLLIMPEXP_BASE time_t wxFileModificationTime(const wxString& filename);
 552
 553 // Parses the wildCard, returning the number of filters.
 554 // Returns 0 if none or if there's a problem,
 555 // The arrays will contain an equal number of items found before the error.
 556 // wildCard is in the form:
 557 // "All files (*)|*|Image Files (*.jpeg *.png)|*.jpg;*.png"
 558 WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArrayString& descriptions, wxArrayString& filters);
 559
 560 // ----------------------------------------------------------------------------
 561 // classes
 562 // ----------------------------------------------------------------------------
 563
 564 #ifdef __UNIX__
 565
 566 // set umask to the given value in ctor and reset it to the old one in dtor
 567 class WXDLLIMPEXP_BASE wxUmaskChanger
 568 {
 569 public:
 570     // change the umask to the given one if it is not -1: this allows to write
 571     // the same code whether you really want to change umask or not, as is in
 572     // wxFileConfig::Flush() for example
 573     wxUmaskChanger(int umaskNew)
 574     {
 575         m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew);
 576     }
 577
 578     ~wxUmaskChanger()
 579     {
 580         if ( m_umaskOld != -1 )
 581             umask((mode_t)m_umaskOld);
 582     }
 583
 584 private:
 585     int m_umaskOld;
 586 };
 587
 588 // this macro expands to an "anonymous" wxUmaskChanger object under Unix and
 589 // nothing elsewhere
 590 #define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m)
 591
 592 #else // !__UNIX__
 593
 594 #define wxCHANGE_UMASK(m)
 595
 596 #endif // __UNIX__/!__UNIX__
 597
 598
 599 // Path searching
 600 class WXDLLIMPEXP_BASE wxPathList : public wxStringList
 601 {
 602 public:
 603     // avoid GCC warning about virtual functions w/o virtual dtor
 604     virtual ~wxPathList() {}
 605
 606     // Adds all paths in environment variable
 607     void AddEnvList(const wxString& envVariable);
 608
 609     void Add(const wxString& path);
 610     // Find the first full path for which the file exists
 611     wxString FindValidPath(const wxString& filename);
 612     // Find the first full path for which the file exists; ensure it's an
 613     // absolute path that gets returned.
 614     wxString FindAbsoluteValidPath(const wxString& filename);
 615     // Given full path and filename, add path to list
 616     void EnsureFileAccessible(const wxString& path);
 617     // Returns true if the path is in the list
 618     bool Member(const wxString& path);
 619
 620 private:
 621     // DECLARE_DYNAMIC_CLASS(wxPathList)
 622 };
 623
 624 #endif
 625   // _WX_FILEFN_H_