ACE/apps/JAWS3/contrib/john_at_lyris_dot_com/jaws3-cntlC.code

   1
   2 bool PlatformSpecificInitialize() {
   3
   4      LYRIS_PROFILE("PlatformSpecificInitialize");
   5
   6      bool retval;
   7      retval = SetConsoleCtrlHandler(handler_routine, TRUE);
   8      if (retval != TRUE) {
   9           trace("Note: SetConsoleCtrlHandler() did not succeed.");
  10      }
  11
  12      retval = SetConsoleTitle(APPLICATION_NAME.c_str());
  13      if (retval != TRUE) {
  14           trace("Note: setConsoleTitle() did not succeed.");
  15      }
  16
  17      return lyris_success;
  18 };
  19
  20 BOOL WINAPI handler_routine(DWORD signal) {
  21
  22      LYRIS_PROFILE("handler_routine");
  23
  24      static unsigned char handles_to_use = 3;
  25      static bool handled_already = false;
  26      if ((signal == CTRL_CLOSE_EVENT) || (signal == CTRL_SHUTDOWN_EVENT)) {
  27           // if we receive a Windows signal to shutdown, we should exit
  28           // immediately, and cleanly
  29           if (handled_already == false) {
  30                handled_already = true;
  31                //lyris_Thread::ExitApplicationNow();
  32                DisplayMessage("Shutting down as requested");
  33                // create shutdown thread so that signal handler can return
  34                // immediately
  35                lyris_Thread aShutDown(ShutDownNow, NULL, "Shut Down Thread");
  36
  37                return TRUE;
  38           }
  39           else {
  40                return FALSE;
  41           }
  42      }
  43      else if (signal == CTRL_C_EVENT) {
  44           // if we receive a Windows signal to shutdown, we should exit
  45           // immediately, and cleanly
  46           if (handles_to_use == 3) {
  47                handles_to_use--;
  48                //lyris_Thread::ExitApplicationNow();
  49                DisplayMessage("Shutting down as requested");
  50                // create shutdown thread so that signal handler can return
  51                // immediately
  52                lyris_Thread aShutDown(ShutDownNow, NULL, "Shut Down Thread");
  53
  54                return TRUE;
  55           }
  56           else if (handles_to_use > 0) {
  57                DisplayMessage("Currently shutting down: press Ctrl-C " +
  58                               ULong2String(handles_to_use) +
  59                               " more times to shut down immediately.");
  60                handles_to_use--;
  61                return TRUE;
  62           }
  63           else {
  64                return FALSE;
  65           }
  66      }
  67      else if (signal == CTRL_BREAK_EVENT) {
  68           if (APPLICATION_NAME == "Lyris") {
  69                if (ShouldDisplayDebugMessages() == 0) {
  70                     SetShouldDisplayDebugMessages(1);
  71                }
  72                else {
  73                     SetShouldDisplayDebugMessages(0);
  74                }
  75                DisplayMessage("Debug mode is now: " +
  76                               Bool2String(ShouldDisplayDebugMessages()));
  77           }
  78           else if (APPLICATION_NAME == "MailShield") {
  79                specific::setReloadConfig(lyris_yes);
  80           }
  81           else {
  82                lyr_fatal;
  83           }
  84           return TRUE;
  85      }
  86      else {
  87           lyr_notify("Unknown Windows signal passed to handler: " +
  88                      ULong2String(signal));
  89      };
  90      return FALSE;
  91 };
  92