+
+ // can't find it out
+ return -1;
+}
+
+bool wxGetDiskSpace(const wxString& path, wxDiskspaceSize_t *pTotal, wxDiskspaceSize_t *pFree)
+{
+#if defined(HAVE_STATFS) || defined(HAVE_STATVFS)
+ // the case to "char *" is needed for AIX 4.3
+ wxStatfs_t fs;
+ if ( wxStatfs((char *)(const char*)path.fn_str(), &fs) != 0 )
+ {
+ wxLogSysError( wxT("Failed to get file system statistics") );
+
+ return false;
+ }
+
+ // under Solaris we also have to use f_frsize field instead of f_bsize
+ // which is in general a multiple of f_frsize
+#ifdef HAVE_STATVFS
+ wxDiskspaceSize_t blockSize = fs.f_frsize;
+#else // HAVE_STATFS
+ wxDiskspaceSize_t blockSize = fs.f_bsize;
+#endif // HAVE_STATVFS/HAVE_STATFS
+
+ if ( pTotal )
+ {
+ *pTotal = wxDiskspaceSize_t(fs.f_blocks) * blockSize;
+ }
+
+ if ( pFree )
+ {
+ *pFree = wxDiskspaceSize_t(fs.f_bavail) * blockSize;
+ }
+
+ return true;
+#else // !HAVE_STATFS && !HAVE_STATVFS
+ return false;
+#endif // HAVE_STATFS
+}
+
+// ----------------------------------------------------------------------------
+// env vars
+// ----------------------------------------------------------------------------
+
+bool wxGetEnv(const wxString& var, wxString *value)
+{
+ // wxGetenv is defined as getenv()
+ wxChar *p = wxGetenv(var);
+ if ( !p )
+ return false;
+
+ if ( value )
+ {
+ *value = p;
+ }
+
+ return true;
+}
+
+bool wxSetEnv(const wxString& variable, const wxChar *value)
+{
+#if defined(HAVE_SETENV)
+ return setenv(variable.mb_str(),
+ value ? (const char *)wxString(value).mb_str()
+ : NULL,
+ 1 /* overwrite */) == 0;
+#elif defined(HAVE_PUTENV)
+ wxString s = variable;
+ if ( value )
+ s << _T('=') << value;
+
+ // transform to ANSI
+ const wxWX2MBbuf p = s.mb_str();
+
+ // the string will be free()d by libc
+ char *buf = (char *)malloc(strlen(p) + 1);
+ strcpy(buf, p);
+
+ return putenv(buf) == 0;
+#else // no way to set an env var
+ return false;
+#endif
+}
+
+// ----------------------------------------------------------------------------
+// signal handling
+// ----------------------------------------------------------------------------
+
+#if wxUSE_ON_FATAL_EXCEPTION
+
+#include <signal.h>
+
+extern "C" void wxFatalSignalHandler(wxTYPE_SA_HANDLER)
+{
+ if ( wxTheApp )
+ {
+ // give the user a chance to do something special about this
+ wxTheApp->OnFatalException();
+ }
+
+ abort();
+}
+
+bool wxHandleFatalExceptions(bool doit)
+{
+ // old sig handlers
+ static bool s_savedHandlers = false;
+ static struct sigaction s_handlerFPE,
+ s_handlerILL,
+ s_handlerBUS,
+ s_handlerSEGV;
+
+ bool ok = true;
+ if ( doit && !s_savedHandlers )
+ {
+ // install the signal handler
+ struct sigaction act;
+
+ // some systems extend it with non std fields, so zero everything
+ memset(&act, 0, sizeof(act));
+
+ act.sa_handler = wxFatalSignalHandler;
+ sigemptyset(&act.sa_mask);
+ act.sa_flags = 0;
+
+ ok &= sigaction(SIGFPE, &act, &s_handlerFPE) == 0;
+ ok &= sigaction(SIGILL, &act, &s_handlerILL) == 0;
+ ok &= sigaction(SIGBUS, &act, &s_handlerBUS) == 0;
+ ok &= sigaction(SIGSEGV, &act, &s_handlerSEGV) == 0;
+ if ( !ok )
+ {
+ wxLogDebug(_T("Failed to install our signal handler."));
+ }
+
+ s_savedHandlers = true;
+ }
+ else if ( s_savedHandlers )
+ {
+ // uninstall the signal handler
+ ok &= sigaction(SIGFPE, &s_handlerFPE, NULL) == 0;
+ ok &= sigaction(SIGILL, &s_handlerILL, NULL) == 0;
+ ok &= sigaction(SIGBUS, &s_handlerBUS, NULL) == 0;
+ ok &= sigaction(SIGSEGV, &s_handlerSEGV, NULL) == 0;
+ if ( !ok )
+ {
+ wxLogDebug(_T("Failed to uninstall our signal handler."));
+ }
+
+ s_savedHandlers = false;
+ }
+ //else: nothing to do
+
+ return ok;
projects / wxWidgets.git / blobdiff