X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/4004775e5a0c2da5453668201a4a984b6543d061..a51dc10315ed7f2ae19938778b2b7b2f820401dd:/include/wx/filefn.h diff --git a/include/wx/filefn.h b/include/wx/filefn.h index b0bd032071..4f539ab176 100644 --- a/include/wx/filefn.h +++ b/include/wx/filefn.h @@ -1,5 +1,5 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: filefn.h +// Name: wx/filefn.h // Purpose: File- and directory-related functions // Author: Julian Smart // Modified by: @@ -12,10 +12,6 @@ #ifndef _FILEFN_H_ #define _FILEFN_H_ -#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) - #pragma interface "filefn.h" -#endif - #include "wx/list.h" #include "wx/arrstr.h" @@ -49,6 +45,9 @@ // __OS2__ and __UNIX__ are defined. #include #include "wx/os2/private.h" + #ifdef __WATCOMC__ + #include + #endif #include #ifdef __EMX__ #include @@ -59,7 +58,7 @@ #endif #if defined(__WINDOWS__) && !defined(__WXMICROWIN__) -#if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__) +#if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__) && !defined(__CYGWIN__) #include #include #include @@ -107,7 +106,7 @@ #endif #endif -#if defined(__VISUALC__) || ( defined(__MWERKS__) && defined( __INTEL__) ) +#if (defined(__VISUALC__) && !defined(__WXWINCE__)) || ( defined(__MWERKS__) && defined( __INTEL__) ) typedef _off_t off_t; #elif defined(__SYMANTEC__) typedef long off_t; @@ -115,16 +114,6 @@ typedef long off_t; #endif -#if defined(__VISAGECPP__) && __IBMCPP__ >= 400 -// -// VisualAge C++ V4.0 cannot have any external linkage const decs -// in headers included by more than one primary source -// -extern const off_t wxInvalidOffset; -#else -const off_t wxInvalidOffset = (off_t)-1; -#endif - enum wxSeekMode { wxFromStart, @@ -132,6 +121,14 @@ enum wxSeekMode wxFromEnd }; +enum wxFileKind +{ + wxFILE_KIND_UNKNOWN, + wxFILE_KIND_DISK, // a file supporting seeking to arbitrary offsets + wxFILE_KIND_TERMINAL, // a tty + wxFILE_KIND_PIPE // a pipe +}; + // ---------------------------------------------------------------------------- // declare our versions of low level file functions: some compilers prepend // underscores to the usual names, some also have Unicode versions of them @@ -139,7 +136,7 @@ enum wxSeekMode // Wrappers around Win32 api functions like CreateFile, ReadFile and such // Implemented in filefnwce.cpp -#if defined( __WINCE__) +#if defined( __WXWINCE__) typedef __int64 wxFileOffset; #define wxFileOffsetFmtSpec _("I64") int wxOpen(const wxChar *filename, int oflag, int WXUNUSED(pmode)); @@ -153,141 +150,187 @@ enum wxSeekMode #define wxLSeek wxSeek wxFileOffset wxTell(int fd); - #if wxUSE_UNICODE - #if wxUSE_UNICODE_MSLU - #define wxMkDir wxMSLU__wmkdir - #define wxRmDir wxMSLU__wrmdir - #define wxStat wxMSLU__wstat - #else - #define wxMkDir _wmkdir - #define wxRmDir _wrmdir - #define wxStat _wstat - #endif - #else // !wxUSE_UNICODE - #define wxMkDir _mkdir - #ifdef __WATCOMC__ - #define wxRmDir rmdir - #else - #define wxRmDir _rmdir - #endif - #define wxStat _stat - #endif + // always Unicode under WinCE + #define wxMkDir _wmkdir + #define wxRmDir _wrmdir + #define wxStat _wstat #define wxStructStat struct _stat - -// Microsoft compiler loves underscores, feed them to it -#elif defined( __VISUALC__ ) \ - || ( defined(__MINGW32__) && !defined(__WINE__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \ - || ( defined(__MWERKS__) && defined(__WXMSW__) ) \ - || ( defined(__DMC__) && defined(__WXMSW__) ) \ - || ( defined(__WATCOMC__) && defined(__WXMSW__) ) - - // Not all of the Win32 compilers do have huge file support, for example - // the Digitalmars compiler does not have huge file size support - #include "wx/msw/private.h" - - #undef __HUGEFILES_SUPPORTED - #if _INTEGRAL_MAX_BITS >= 64 && !defined(__DMC__) - #define __HUGEFILES_SUPPORTED 1 - #else - #define __HUGEFILES_SUPPORTED 0 +#elif defined(__WXMSW__) && !defined(__WXPALMOS__) && \ + ( \ + defined(__VISUALC__) || \ + (defined(__MINGW32__) && !defined(__WINE__) && \ + wxCHECK_W32API_VERSION(0, 5)) || \ + defined(__MWERKS__) || \ + defined(__DMC__) || \ + defined(__WATCOMC__) || \ + defined(__BORLANDC__) \ + ) + + #undef wxHAS_HUGE_FILES + + // detect compilers which have support for huge files + #if defined(__VISUALC__) + #define wxHAS_HUGE_FILES 1 + #elif defined(__MINGW32__) + #define wxHAS_HUGE_FILES 1 + #elif defined(_LARGE_FILES) + #define wxHAS_HUGE_FILES 1 #endif - // functions - #if defined(__BORLANDC__) || defined(__WATCOMC__) - #define _tell tell - #endif + // other Windows compilers (DMC, Watcom, Metrowerks and Borland) don't have + // huge file support (or at least not all functions needed for it by wx) + // currently - #if __HUGEFILES_SUPPORTED + #ifdef wxHAS_HUGE_FILES typedef wxLongLong_t wxFileOffset; #define wxFileOffsetFmtSpec wxLongLongFmtSpec #else typedef off_t wxFileOffset; - #define wxFileOffsetFmtSpec _("") #endif - #define wxClose _close + + // functions + + // MSVC and compatible compilers prepend underscores to the POSIX function + // names, other compilers don't and even if their later versions usually do + // define the versions with underscores for MSVC compatibility, it's better + // to avoid using them as they're not present in earlier versions and + // always using the native functions spelling is easier than testing for + // the versions + #if defined(__BORLANDC__) || defined(__DMC__) || defined(__WATCOMC__) + #define wxPOSIX_IDENT(func) ::func + #else // by default assume MSVC-compatible names + #define wxPOSIX_IDENT(func) _ ## func + #define wxHAS_UNDERSCORES_IN_POSIX_IDENTS + #endif + + + // first functions not working with strings, i.e. without ANSI/Unicode + // complications + #define wxClose wxPOSIX_IDENT(close) #if defined(__MWERKS__) #if __MSL__ >= 0x6000 - #define wxRead _read(fd, (void *)buf, nCount) - #define wxWrite _write(fd, (void *)buf, nCount) - #else - #define wxRead _read(fd, (const char *)buf, nCount) - #define wxWrite _write(fd, (const char *)buf, nCount) - #endif - #else - #ifdef __DMC__ - #define wxRead ::read - #define wxWrite ::write + #define wxRead(fd, buf, nCount) _read(fd, (void *)buf, nCount) + #define wxWrite(fd, buf, nCount) _write(fd, (void *)buf, nCount) #else - #define wxRead _read - #define wxWrite _write + #define wxRead(fd, buf, nCount)\ + _read(fd, (const char *)buf, nCount) + #define wxWrite(fd, buf, nCount)\ + _write(fd, (const char *)buf, nCount) #endif + #else // __MWERKS__ + #define wxRead wxPOSIX_IDENT(read) + #define wxWrite wxPOSIX_IDENT(write) #endif - #if __HUGEFILES_SUPPORTED - #define wxSeek _lseeki64 - #define wxLseek _lseeki64 - #define wxTell _telli64 - #else - #define wxSeek _lseek - #define wxLseek _lseek - #define wxTell _tell + + #ifdef wxHAS_HUGE_FILES + #define wxSeek wxPOSIX_IDENT(lseeki64) + #define wxLseek wxPOSIX_IDENT(lseeki64) + #define wxTell wxPOSIX_IDENT(telli64) + #else // !wxHAS_HUGE_FILES + #define wxSeek wxPOSIX_IDENT(lseek) + #define wxLseek wxPOSIX_IDENT(lseek) + #define wxTell wxPOSIX_IDENT(tell) + #endif // wxHAS_HUGE_FILES/!wxHAS_HUGE_FILES + + #ifndef __WATCOMC__ + #if !defined(__BORLANDC__) || (__BORLANDC__ > 0x540) + // NB: this one is not POSIX and always has the underscore + #define wxFsync _commit + + #define HAVE_FSYNC + #endif // BORLANDC #endif - #define wxFsync _commit - #define wxEof _eof + #define wxEof wxPOSIX_IDENT(eof) + + // then the functions taking strings #if wxUSE_UNICODE #if wxUSE_UNICODE_MSLU + // implement the missing file functions in Win9x ourselves + #if defined( __VISUALC__ ) \ + || ( defined(__MINGW32__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \ + || ( defined(__MWERKS__) && defined(__WXMSW__) ) \ + || ( defined(__BORLANDC__) && (__BORLANDC__ > 0x460) ) \ + || defined(__DMC__) + + WXDLLIMPEXP_BASE int wxMSLU__wopen(const wxChar *name, + int flags, int mode); + WXDLLIMPEXP_BASE int wxMSLU__waccess(const wxChar *name, + int mode); + WXDLLIMPEXP_BASE int wxMSLU__wmkdir(const wxChar *name); + WXDLLIMPEXP_BASE int wxMSLU__wrmdir(const wxChar *name); + + WXDLLIMPEXP_BASE int + wxMSLU__wstat(const wxChar *name, + struct wxPOSIX_IDENT(stat) *buffer); + WXDLLIMPEXP_BASE int + wxMSLU__wstati64(const wxChar *name, + struct wxPOSIX_IDENT(stati64) *buffer); + #endif // Windows compilers with MSLU support + #define wxOpen wxMSLU__wopen #define wxAccess wxMSLU__waccess #define wxMkDir wxMSLU__wmkdir #define wxRmDir wxMSLU__wrmdir - #if __HUGEFILES_SUPPORTED + #ifdef wxHAS_HUGE_FILES #define wxStat wxMSLU__wstati64 #else #define wxStat wxMSLU__wstat #endif - #else - #define wxOpen _wopen - #define wxAccess _waccess - #define wxMkDir _wmkdir - #define wxRmDir _wrmdir - #if __HUGEFILES_SUPPORTED - #define wxStat _wstati64 + #else // !wxUSE_UNICODE_MSLU + #ifdef __BORLANDC__ + #if __BORLANDC__ >= 0x550 && __BORLANDC__ <= 0x551 + WXDLLIMPEXP_BASE int wxOpen(const wxChar *pathname, + int flags, mode_t mode); + #else + #define wxOpen _wopen + #endif + #define wxAccess _waccess + #define wxMkDir _mkdir + #define wxRmDir _rmdir + #ifdef wxHAS_HUGE_FILES + #define wxStat _wstati64 + #else + #define wxStat _wstat + #endif #else - #define wxStat _wstat + #define wxOpen _wopen + #define wxAccess _waccess + #define wxMkDir _wmkdir + #define wxRmDir _wrmdir + #ifdef wxHAS_HUGE_FILES + #define wxStat _wstati64 + #else + #define wxStat _wstat + #endif #endif - #endif + #endif // wxUSE_UNICODE_MSLU/!wxUSE_UNICODE_MSLU #else // !wxUSE_UNICODE - #ifdef __BORLANDC__ - #define wxOpen open - #else - #define wxOpen _open - #endif - #define wxAccess _access - #define wxMkDir _mkdir - #ifdef __WATCOMC__ - #define wxRmDir rmdir + #define wxOpen wxPOSIX_IDENT(open) + #define wxAccess wxPOSIX_IDENT(access) + #define wxMkDir wxPOSIX_IDENT(mkdir) + #define wxRmDir wxPOSIX_IDENT(rmdir) + #ifdef wxHAS_HUGE_FILES + #define wxStat wxPOSIX_IDENT(stati64) #else - #define wxRmDir _rmdir + #define wxStat wxPOSIX_IDENT(stat) #endif - #if __HUGEFILES_SUPPORTED - #define wxStat _stati64 - #else - #define wxStat _stat - #endif - #endif + #endif // wxUSE_UNICODE/!wxUSE_UNICODE - // types - #if __HUGEFILES_SUPPORTED - #if wxUSE_UNICODE + // Types: Notice that Watcom is the only compiler to have a wide char + // version of struct stat as well as a wide char stat function variant. + // This was droped since OW 1.4 "for consistency across platforms". + #ifdef wxHAS_HUGE_FILES + #if wxUSE_UNICODE && wxONLY_WATCOM_EARLIER_THAN(1,4) #define wxStructStat struct _wstati64 #else #define wxStructStat struct _stati64 #endif #else - #if wxUSE_UNICODE + #if wxUSE_UNICODE && wxONLY_WATCOM_EARLIER_THAN(1,4) #define wxStructStat struct _wstat #else #define wxStructStat struct _stat @@ -295,27 +338,48 @@ enum wxSeekMode #endif // constants (unless already defined by the user code) - #if !defined(O_RDONLY) && !defined(__BORLANDC__) && !defined(__WATCOMC__) - #define O_RDONLY _O_RDONLY - #define O_WRONLY _O_WRONLY - #define O_RDWR _O_RDWR - #define O_EXCL _O_EXCL - #define O_CREAT _O_CREAT - #define O_BINARY _O_BINARY - #endif + #ifdef wxHAS_UNDERSCORES_IN_POSIX_IDENTS + #ifndef O_RDONLY + #define O_RDONLY _O_RDONLY + #define O_WRONLY _O_WRONLY + #define O_RDWR _O_RDWR + #define O_EXCL _O_EXCL + #define O_CREAT _O_CREAT + #define O_BINARY _O_BINARY + #endif - #if !defined(__BORLANDC__) && !defined(__WATCOMC__) - #define S_IFMT _S_IFMT - #define S_IFDIR _S_IFDIR - #define S_IFREG _S_IFREG - #endif // O_RDONLY + #ifndef S_IFMT + #define S_IFMT _S_IFMT + #define S_IFDIR _S_IFDIR + #define S_IFREG _S_IFREG + #endif + #endif // wxHAS_UNDERSCORES_IN_POSIX_IDENTS + + #ifdef wxHAS_HUGE_FILES + // wxFile is present and supports large files. Currently wxFFile + // doesn't have large file support with any Windows compiler (even + // Win64 ones). + #if wxUSE_FILE + #define wxHAS_LARGE_FILES + #endif + #endif - // It's a private define, undefine it so nobody gets tempted to use it - #undef __HUGEFILES_SUPPORTED -#else + // it's a private define, undefine it so that nobody gets tempted to use it + #undef wxHAS_HUGE_FILES +#else // Unix or Windows using unknown compiler, assume POSIX supported typedef off_t wxFileOffset; #ifdef _LARGE_FILES #define wxFileOffsetFmtSpec wxLongLongFmtSpec + wxCOMPILE_TIME_ASSERT( sizeof(off_t) == sizeof(wxLongLong_t), + BadFileSizeType ); + // wxFile is present and supports large files + #ifdef wxUSE_FILE + #define wxHAS_LARGE_FILES + #endif + // wxFFile is present and supports large files + #if SIZEOF_LONG == 8 || defined HAVE_FSEEKO + #define wxHAS_LARGE_FFILES + #endif #else #define wxFileOffsetFmtSpec _T("") #endif @@ -325,7 +389,7 @@ enum wxSeekMode #define wxWrite ::write #define wxLseek lseek #define wxSeek lseek - #define wxFsync commit + #define wxFsync fsync #define wxEof eof #define wxMkDir mkdir @@ -341,15 +405,40 @@ enum wxSeekMode typedef unsigned long mode_t; #endif WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf ); + WXDLLIMPEXP_BASE int wxLstat( const wxChar *file_name, wxStructStat *buf ); WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode ); WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode ); #else #define wxOpen open #define wxStat stat + #define wxLstat lstat #define wxAccess access #endif -#endif // VC++ + #define wxHAS_NATIVE_LSTAT +#endif // platforms + +#ifdef O_BINARY + #define wxO_BINARY O_BINARY +#else + #define wxO_BINARY 0 +#endif + +// if the platform doesn't have symlinks, define wxLstat to be the same as +// wxStat to avoid #ifdefs in the code using it +#ifndef wxHAS_NATIVE_LSTAT + #define wxLstat wxStat +#endif + +#if defined(__VISAGECPP__) && __IBMCPP__ >= 400 +// +// VisualAge C++ V4.0 cannot have any external linkage const decs +// in headers included by more than one primary source +// +extern const int wxInvalidOffset; +#else +const int wxInvalidOffset = -1; +#endif // ---------------------------------------------------------------------------- // functions @@ -357,7 +446,7 @@ enum wxSeekMode WXDLLIMPEXP_BASE bool wxFileExists(const wxString& filename); // does the path exist? (may have or not '/' or '\\' at the end) -WXDLLIMPEXP_BASE bool wxPathExists(const wxChar *pszPathName); +WXDLLIMPEXP_BASE bool wxDirExists(const wxChar *pszPathName); WXDLLIMPEXP_BASE bool wxIsAbsolutePath(const wxString& filename); @@ -426,16 +515,18 @@ WXDLLIMPEXP_BASE bool wxCopyFile(const wxString& file1, const wxString& file2, WXDLLIMPEXP_BASE bool wxRemoveFile(const wxString& file); // Rename file -WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2); +WXDLLIMPEXP_BASE bool wxRenameFile(const wxString& file1, const wxString& file2, bool overwrite = true); // Get current working directory. +#if WXWIN_COMPATIBILITY_2_6 // If buf is NULL, allocates space using new, else // copies into buf. // IMPORTANT NOTE getcwd is know not to work under some releases // of Win32s 1.3, according to MS release notes! -WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000); +wxDEPRECATED( WXDLLIMPEXP_BASE wxChar* wxGetWorkingDirectory(wxChar *buf = (wxChar *) NULL, int sz = 1000) ); // new and preferred version of wxGetWorkingDirectory // NB: can't have the same name because of overloading ambiguity +#endif // WXWIN_COMPATIBILITY_2_6 WXDLLIMPEXP_BASE wxString wxGetCwd(); // Set working directory @@ -447,8 +538,23 @@ WXDLLIMPEXP_BASE bool wxMkdir(const wxString& dir, int perm = 0777); // Remove directory. Flags reserved for future use. WXDLLIMPEXP_BASE bool wxRmdir(const wxString& dir, int flags = 0); +// Return the type of an open file +WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(int fd); +WXDLLIMPEXP_BASE wxFileKind wxGetFileKind(FILE *fp); + +#if WXWIN_COMPATIBILITY_2_6 // compatibility defines, don't use in new code -#define wxDirExists wxPathExists +wxDEPRECATED( inline bool wxPathExists(const wxChar *pszPathName) ); +inline bool wxPathExists(const wxChar *pszPathName) +{ + return wxDirExists(pszPathName); +} +#endif //WXWIN_COMPATIBILITY_2_6 + +// permissions; these functions work both on files and directories: +WXDLLIMPEXP_BASE bool wxIsWritable(const wxString &path); +WXDLLIMPEXP_BASE bool wxIsReadable(const wxString &path); +WXDLLIMPEXP_BASE bool wxIsExecutable(const wxString &path); // ---------------------------------------------------------------------------- // separators in file names @@ -523,9 +629,13 @@ WXDLLIMPEXP_BASE bool wxFindFileInPath(wxString *pStr, const wxChar *pszPath, co // On non-Windows platform, probably just return the empty string. WXDLLIMPEXP_BASE wxString wxGetOSDirectory(); +#if wxUSE_DATETIME + // Get file modification time WXDLLIMPEXP_BASE time_t wxFileModificationTime(const wxString& filename); +#endif // wxUSE_DATETIME + // Parses the wildCard, returning the number of filters. // Returns 0 if none or if there's a problem, // The arrays will contain an equal number of items found before the error. @@ -537,30 +647,70 @@ WXDLLIMPEXP_BASE int wxParseCommonDialogsFilter(const wxString& wildCard, wxArra // classes // ---------------------------------------------------------------------------- +#ifdef __UNIX__ + +// set umask to the given value in ctor and reset it to the old one in dtor +class WXDLLIMPEXP_BASE wxUmaskChanger +{ +public: + // change the umask to the given one if it is not -1: this allows to write + // the same code whether you really want to change umask or not, as is in + // wxFileConfig::Flush() for example + wxUmaskChanger(int umaskNew) + { + m_umaskOld = umaskNew == -1 ? -1 : (int)umask((mode_t)umaskNew); + } + + ~wxUmaskChanger() + { + if ( m_umaskOld != -1 ) + umask((mode_t)m_umaskOld); + } + +private: + int m_umaskOld; +}; + +// this macro expands to an "anonymous" wxUmaskChanger object under Unix and +// nothing elsewhere +#define wxCHANGE_UMASK(m) wxUmaskChanger wxMAKE_UNIQUE_NAME(umaskChanger_)(m) + +#else // !__UNIX__ + +#define wxCHANGE_UMASK(m) + +#endif // __UNIX__/!__UNIX__ + + // Path searching -class WXDLLIMPEXP_BASE wxPathList : public wxStringList +class WXDLLIMPEXP_BASE wxPathList : public wxArrayString { public: - // avoid GCC warning about virtual functions w/o virtual dtor - virtual ~wxPathList() {} + wxPathList() {} + wxPathList(const wxArrayString &arr) + { Add(arr); } // Adds all paths in environment variable void AddEnvList(const wxString& envVariable); - void Add(const wxString& path); + // Adds given path to this list + bool Add(const wxString& path); + void Add(const wxArrayString &paths); + // Find the first full path for which the file exists - wxString FindValidPath(const wxString& filename); + wxString FindValidPath(const wxString& filename) const; + // Find the first full path for which the file exists; ensure it's an // absolute path that gets returned. - wxString FindAbsoluteValidPath(const wxString& filename); + wxString FindAbsoluteValidPath(const wxString& filename) const; + // Given full path and filename, add path to list - void EnsureFileAccessible(const wxString& path); - // Returns true if the path is in the list - bool Member(const wxString& path); + bool EnsureFileAccessible(const wxString& path); -private: - // DECLARE_DYNAMIC_CLASS(wxPathList) +#if WXWIN_COMPATIBILITY_2_6 + // Returns true if the path is in the list + wxDEPRECATED( bool Member(const wxString& path) const ); +#endif }; -#endif - // _WX_FILEFN_H_ +#endif // _WX_FILEFN_H_