Re: Interrupting Octave

[Tatsuro MATSUOKA]

Hello

I have a look into the octave-3.2.4 source

Signal handling is carried out in src/signalhandler.cc

octave_interrupt_handler
octave_catch_interrupts (void)
{
  octave_interrupt_handler retval;

#ifdef SIGINT
  retval.int_handler = octave_set_signal_handler (SIGINT, sigint_handler);
#endif

#ifdef SIGBREAK
  retval.brk_handler = octave_set_signal_handler (SIGBREAK, sigint_handler);
#endif

#ifdef USE_W32_SIGINT

  // Intercept windows console control events.
  // Note that the windows console signal handlers chain, so if 
  // install_signal_handlers is called more than once in the same program,
  // then first call the following to avoid duplicates:
  //
  //   SetConsoleCtrlHandler (w32_sigint_handler, FALSE);

  if (! SetConsoleCtrlHandler (w32_sigint_handler, TRUE))
    error ("SetConsoleCtrlHandler failed with %ld\n", GetLastError ());

  w32_set_quiet_shutdown ();

#endif

  return retval;
} 

In config.h when I built octave-3.2.4, there seems to be no definition of  
USE_W32_SIGINT.

However I do not know whether there is a indirect definition of  USE_W32_SIGINT.

That'a all I can reply at the moment. I do have no time trace it by myself.

BTW, in the development source, the sample routine exit.  However, as far as I 
know, the gbulib signal
routine seemed to be used and USE_W32_SIGINT might be not effective.

Regards

Tatsuro
 

--- Felipe Monteiro de Carvalho  wrote:

> Hello,
> 
> I have a program which shows GNU Octave command line inside a GUI and
> I would like to be able to interrupt it.
> 
> 1> Under Windows, it is terribly painful to send a SIGINT, and the
> possible solutions are terrible (going from code injection to using
> external executables). Does GNU Octave respond to any other way of
> receiving a SIGINT? Like for example, receiving a custom WM_SOMETHING
> message?
> 
> 2> Does GNU Octave under Windows call SetConsoleCtrlHandler to set a
> handler for Ctrl+C or does it only use the signal UNIX routine?
> 
> 3> Under Mac OS X, GNU Octave starts and then creates a new terminal.
> It doesn't use the standard input/output file descriptors, if they are
> provided for it. It is possible to make it use the standard
> input/output instead of using it's own terminal window?
> 
> thanks in advance,
> -- 
> Felipe Monteiro de Carvalho
> _______________________________________________
> Help-octave mailing list
> address@hidden
> https://www-old.cae.wisc.edu/mailman/listinfo/help-octave
> 


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