+
+ if ( !::GetTempFileName(dir, name, 0, wxStringBuffer(path, MAX_PATH + 1)) )
+ {
+ wxLogLastError(_T("GetTempFileName"));
+
+ path.clear();
+ }
+#else // Win16
+ if ( !::GetTempFileName(NULL, prefix, 0, wxStringBuffer(path, 1025)) )
+ {
+ path.clear();
+ }
+#endif // Win32/16
+
+#elif defined(__WXPM__)
+ // for now just create a file
+ //
+ // future enhancements can be to set some extended attributes for file
+ // systems OS/2 supports that have them (HPFS, FAT32) and security
+ // (HPFS386)
+ static const wxChar *szMktempSuffix = wxT("XXX");
+ path << dir << _T('/') << name << szMktempSuffix;
+
+ // Temporarily remove - MN
+ #ifndef __WATCOMC__
+ ::DosCreateDir(wxStringBuffer(MAX_PATH), NULL);
+ #endif
+
+#else // !Windows, !OS/2
+ if ( dir.empty() )
+ {
+ dir = wxGetenv(_T("TMP"));
+ if ( path.empty() )
+ {
+ dir = wxGetenv(_T("TEMP"));
+ }
+
+ if ( dir.empty() )
+ {
+ // default
+ dir = _T("/tmp");
+ }
+ }
+
+ path = dir;
+
+ if ( !wxEndsWithPathSeparator(dir) &&
+ (name.empty() || !wxIsPathSeparator(name[0u])) )
+ {
+ path += _T('/');
+ }
+
+ path += name;
+
+#ifdef HAVE_MKSTEMP
+ // scratch space for mkstemp()
+ path += _T("XXXXXX");
+
+ // can use the cast here because the length doesn't change and the string
+ // is not shared
+ if ( mkstemp((char *)path.mb_str()) == -1 )
+ {
+ // this might be not necessary as mkstemp() on most systems should have
+ // already done it but it doesn't hurt neither...
+ path.clear();
+ }
+ //else: file already created
+#else // !HAVE_MKSTEMP
+
+#ifdef HAVE_MKTEMP
+ // same as above
+ path += _T("XXXXXX");
+
+ if ( !mktemp((char *)path.mb_str()) )
+ {
+ path.clear();
+ }
+#else // !HAVE_MKTEMP
+ // generate the unique file name ourselves
+ path << (unsigned int)getpid();
+
+ wxString pathTry;
+
+ static const size_t numTries = 1000;
+ for ( size_t n = 0; n < numTries; n++ )
+ {
+ // 3 hex digits is enough for numTries == 1000 < 4096
+ pathTry = path + wxString::Format(_T("%.03x"), n);
+ if ( !wxFile::Exists(pathTry) )
+ {
+ break;
+ }
+
+ pathTry.clear();
+ }
+
+ path = pathTry;
+#endif // HAVE_MKTEMP/!HAVE_MKTEMP
+
+ if ( !path.empty() )
+ {
+ // create the file - of course, there is a race condition here, this is
+ // why we always prefer using mkstemp()...
+ wxFile file;
+ if ( !file.Open(path, wxFile::write_excl, wxS_IRUSR | wxS_IWUSR) )
+ {
+ // FIXME: If !ok here should we loop and try again with another
+ // file name? That is the standard recourse if open(O_EXCL)
+ // fails, though of course it should be protected against
+ // possible infinite looping too.
+
+ wxLogError(_("Failed to open temporary file."));
+
+ path.clear();
+ }
+ }
+#endif // HAVE_MKSTEMP/!HAVE_MKSTEMP
+
+#endif // Windows/!Windows
+
+ if ( path.empty() )
+ {
+ wxLogSysError(_("Failed to create a temporary file name"));
+ }
+
+ return path;
projects / wxWidgets.git / commitdiff
