Re: Interrupting Octave

[Tatsuro MATSUOKA]

Hello

I would like to make correction to the previous reply

--- Tatsuro MATSUOKA wrote:

> Hello
> 
> I have a look into the octave-3.2.4 source
> 
> Signal handling is carried out in src/signalhandler.cc

I found the below in src/signalhandler.cc (This is added.)

> 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. 
(This is non-sense. I'd like to correct it like  the following)

 BTW,  the same code appears in src/signalhandler.cc even in the development 
source.

> 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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