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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
121enum wxSeekMode
122{
123 wxFromStart,
124 wxFromCurrent,
125 wxFromEnd
126};
127
128enum 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//
362extern const int wxInvalidOffset;
363#else
364const int wxInvalidOffset = -1;
365#endif
366
367// ----------------------------------------------------------------------------
368// functions
369// ----------------------------------------------------------------------------
370WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename);
371
372// does the path exist? (may have or not '/' or '\\' at the end)
373WXDLLIMPEXP_BASE bool wxDirExists(const wxChar *pszPathName);
374
375WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename);
376
377// Get filename
378WXDLLIMPEXP_BASE wxChar* wxFileNameFromPath(wxChar *path);
379WXDLLIMPEXP_BASE wxString wxFileNameFromPath(const wxString& path);
380
381// Get directory
382WXDLLIMPEXP_BASE wxString wxPathOnly(const wxString& path);
383
384// wxString version
385WXDLLIMPEXP_BASE wxString wxRealPath(const wxString& path);
386
387WXDLLIMPEXP_BASE void wxDos2UnixFilename(wxChar *s);
388
389WXDLLIMPEXP_BASE void wxUnix2DosFilename(wxChar *s);
390
391// Strip the extension, in situ
392WXDLLIMPEXP_BASE void wxStripExtension(wxChar *buffer);
393WXDLLIMPEXP_BASE void wxStripExtension(wxString& buffer);
394
395// Get a temporary filename
396WXDLLIMPEXP_BASE wxChar* wxGetTempFileName(const wxString& prefix, wxChar *buf = (wxChar *) NULL);
397WXDLLIMPEXP_BASE bool wxGetTempFileName(const wxString& prefix, wxString& buf);
398
399// Expand file name (~/ and ${OPENWINHOME}/ stuff)
400WXDLLIMPEXP_BASE wxChar* wxExpandPath(wxChar *dest, const wxChar *path);
401WXDLLIMPEXP_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]
406WXDLLIMPEXP_BASE wxChar* wxContractPath(const wxString& filename,
407 const wxString& envname = wxEmptyString,
408 const wxString& user = wxEmptyString);
409
410// Destructive removal of /./ and /../ stuff
411WXDLLIMPEXP_BASE wxChar* wxRealPath(wxChar *path);
412
413// Allocate a copy of the full absolute path
414WXDLLIMPEXP_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
420WXDLLIMPEXP_BASE wxString wxFindFirstFile(const wxChar *spec, int flags = wxFILE);
421WXDLLIMPEXP_BASE wxString wxFindNextFile();
422
423// Does the pattern contain wildcards?
424WXDLLIMPEXP_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)
429WXDLLIMPEXP_BASE bool wxMatchWild(const wxString& pattern, const wxString& text, bool dot_special = true);
430
431// Concatenate two files to form third
432WXDLLIMPEXP_BASE bool wxConcatFiles(const wxString& file1, const wxString& file2, const wxString& file3);
433
434// Copy file1 to file2
435WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2,
436 bool overwrite = true);
437
438// Remove file
439WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file);
440
441// Rename file
442WXDLLIMPEXP_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!
449WXDLLIMPEXP_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
452WXDLLIMPEXP_BASE wxString wxGetCwd();
453
454// Set working directory
455WXDLLIMPEXP_BASE bool wxSetWorkingDirectory(const wxString& d);
456
457// Make directory
458WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777);
459
460// Remove directory. Flags reserved for future use.
461WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0);
462
463// Return the type of an open file
464WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd);
465WXDLLIMPEXP_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
470wxDEPRECATED( inline bool wxPathExists(const wxChar *pszPathName) );
471inline 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?
523inline 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?
534WXDLLIMPEXP_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 '\\')
538WXDLLIMPEXP_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
544WXDLLIMPEXP_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.
548WXDLLIMPEXP_BASE wxString wxGetOSDirectory();
549
550// Get file modification time
551WXDLLIMPEXP_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"
558WXDLLIMPEXP_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
567class WXDLLIMPEXP_BASE wxUmaskChanger
568{
569public:
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
584private:
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
600class WXDLLIMPEXP_BASE wxPathList : public wxStringList
601{
602public:
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
620private:
621 // DECLARE_DYNAMIC_CLASS(wxPathList)
622};
623
624#endif
625 // _WX_FILEFN_H_