static wxFileName FileName(const wxString& file);
static wxFileName DirName(const wxString& dir);
- // test for existence
+ // file tests
// is the filename valid at all?
bool IsOk() const { return !m_dirs.IsEmpty() || !m_name.IsEmpty(); }
bool DirExists();
static bool DirExists( const wxString &dir );
- // Well, get modification time with sec resolution
- wxDateTime GetModificationTime();
-
// VZ: also need: IsDirWritable(), IsFileExecutable() &c (TODO)
+ // time functions
+
+ // set the file creation and last access/mod times
+ // (any of the pointers may be NULL)
+ bool SetTimes(const wxDateTime *dtCreate,
+ const wxDateTime *dtAccess,
+ const wxDateTime *dtMod);
+
+ // set the access and modification times to the current moment
+ bool Touch();
+
+ // return the last access, last modification and last change times
+ // (any of the pointers may be NULL)
+ bool GetTimes(wxDateTime *dtAccess,
+ wxDateTime *dtMod,
+ wxDateTime *dtChange) const;
+
+ // convenience wrapper: get just the last mod time of the file
+ wxDateTime GetModificationTime() const
+ {
+ wxDateTime dtMod;
+ (void)GetTimes(NULL, &dtMod, NULL);
+ return dtMod;
+ }
+
// various file/dir operations
// retrieve the value of the current working directory
#include "wx/utils.h"
#if wxUSE_DYNLIB_CLASS
-#include "wx/dynlib.h"
+ #include "wx/dynlib.h"
#endif
// For GetShort/LongPathName
#ifdef __WIN32__
-#include <windows.h>
-#include "wx/msw/winundef.h"
+ #include <windows.h>
+
+ #include "wx/msw/winundef.h"
+#endif
+
+// utime() is POSIX so should normally be available on all Unices
+#ifdef __UNIX_LIKE__
+ #include <sys/types.h>
+ #include <utime.h>
#endif
+// ----------------------------------------------------------------------------
+// private classes
+// ----------------------------------------------------------------------------
+
+// small helper class which opens and closes the file - we use it just to get
+// a file handle for the given file name to pass it to some Win32 API function
+#ifdef __WIN32__
+
+class wxFileHandle
+{
+public:
+ wxFileHandle(const wxString& filename)
+ {
+ m_hFile = ::CreateFile
+ (
+ filename, // name
+ GENERIC_READ, // access mask
+ 0, // no sharing
+ NULL, // no secutity attr
+ OPEN_EXISTING, // creation disposition
+ 0, // no flags
+ NULL // no template file
+ );
+
+ if ( m_hFile == INVALID_HANDLE_VALUE )
+ {
+ wxLogSysError(_("Failed to open '%s' for reading"),
+ filename.c_str());
+ }
+ }
+
+ ~wxFileHandle()
+ {
+ if ( m_hFile != INVALID_HANDLE_VALUE )
+ {
+ if ( !::CloseHandle(m_hFile) )
+ {
+ wxLogSysError(_("Failed to close file handle"));
+ }
+ }
+ }
+
+ // return TRUE only if the file could be opened successfully
+ bool IsOk() const { return m_hFile != INVALID_HANDLE_VALUE; }
+
+ // get the handle
+ operator HANDLE() const { return m_hFile; }
+
+private:
+ HANDLE m_hFile;
+};
+
+#endif // __WIN32__
+
+// ----------------------------------------------------------------------------
+// private functions
+// ----------------------------------------------------------------------------
+
+#ifdef __WIN32__
+
+// convert between wxDateTime and FILETIME which is a 64-bit value representing
+// the number of 100-nanosecond intervals since January 1, 1601.
+
+static void ConvertWxToFileTime(FILETIME *ft, const wxDateTime& dt)
+{
+ // TODO
+}
+
+static void ConvertFileTimeToWx(wxDateTime *dt, const FILETIME &ft)
+{
+ // TODO
+}
+
+#endif // __WIN32__
+
// ============================================================================
// implementation
// ============================================================================
return ::wxDirExists( dir );
}
-wxDateTime wxFileName::GetModificationTime()
-{
- wxDateTime ret( wxFileModificationTime( GetFullPath() ) );
-
- return ret;
-}
-
// ----------------------------------------------------------------------------
// CWD and HOME stuff
// ----------------------------------------------------------------------------
}
}
}
+
+// ----------------------------------------------------------------------------
+// time functions
+// ----------------------------------------------------------------------------
+
+bool wxFileName::SetTimes(const wxDateTime *dtCreate,
+ const wxDateTime *dtAccess,
+ const wxDateTime *dtMod)
+{
+#if defined(__UNIX_LIKE__)
+ utimbuf utm;
+ utm.actime = dtAccess ? dtAccess : dtAccess->GetTicks();
+ utm.modtime = dtMod ? dtMod : dtMod->GetTicks();
+ if ( utime(GetFullPath(), &utm) == 0 )
+ {
+ return TRUE;
+ }
+#elif defined(__WIN32__)
+ wxFileHandle fh(GetFullPath());
+ if ( fh.IsOk() )
+ {
+ FILETIME ftAccess, ftCreate, ftWrite;
+
+ if ( dtCreate )
+ ConvertWxToFileTime(&ftCreate, *dtCreate);
+ if ( dtAccess )
+ ConvertWxToFileTime(&ftAccess, *dtAccess);
+ if ( dtMod )
+ ConvertWxToFileTime(&ftWrite, *dtMod);
+
+ if ( ::SetFileTime(fh,
+ dtCreate ? &ftCreate : NULL,
+ dtAccess ? &ftAccess : NULL,
+ dtMod ? &ftWrite : NULL) )
+ {
+ return TRUE;
+ }
+ }
+#else // other platform
+#endif // platforms
+
+ wxLogSysError(_("Failed to modify file times for '%s'"),
+ GetFullPath().c_str());
+
+ return FALSE;
+}
+
+bool wxFileName::Touch()
+{
+#if defined(__UNIX_LIKE__)
+ // under Unix touching file is simple: just pass NULL to utime()
+ if ( utime(GetFullPath(), NULL) == 0 )
+ {
+ return TRUE;
+ }
+
+ wxLogSysError(_("Failed to touch the file '%s'"), GetFullPath().c_str());
+
+ return FALSE;
+#else // other platform
+ wxDateTime dtNow = wxDateTime::Now();
+
+ return SetTimes(NULL /* don't change create time */, &dtNow, &dtNow);
+#endif // platforms
+}
+
+bool wxFileName::GetTimes(wxDateTime *dtAccess,
+ wxDateTime *dtMod,
+ wxDateTime *dtChange) const
+{
+#if defined(__UNIX_LIKE__)
+ wxStructStat stBuf;
+ if ( wxStat(GetFullPath(), &stBuf) == 0 )
+ {
+ if ( dtAccess )
+ dtAccess->Set(stBuf.st_atime);
+ if ( dtMod )
+ dtMod->Set(stBuf.st_mtime);
+ if ( dtChange )
+ dtChange->Set(stBuf.st_ctime);
+
+ return TRUE;
+ }
+#elif defined(__WIN32__)
+ wxFileHandle fh(GetFullPath());
+ if ( fh.IsOk() )
+ {
+ FILETIME ftAccess, ftCreate, ftWrite;
+
+ if ( ::GetFileTime(fh,
+ dtMod ? &ftCreate : NULL,
+ dtAccess ? &ftAccess : NULL,
+ dtChange ? &ftWrite : NULL) )
+ {
+ if ( dtMod )
+ ConvertFileTimeToWx(dtMod, ftCreate);
+ if ( dtAccess )
+ ConvertFileTimeToWx(dtAccess, ftAccess);
+ if ( dtChange )
+ ConvertFileTimeToWx(dtChange, ftWrite);
+
+ return TRUE;
+ }
+ }
+#else // other platform
+#endif // platforms
+
+ wxLogSysError(_("Failed to retrieve file times for '%s'"),
+ GetFullPath().c_str());
+
+ return FALSE;
+}
+
projects / wxWidgets.git / commitdiff
