Re: SIGINT with gtk_main

[Chris Vine <chris cvine freeserve co uk>]

On Wednesday 21 March 2007 20:59, zz excite it wrote:
[snip]
> Hi,
>
> maybe adding this to main
>
>       /*signal(SIGHUP,SIG_IGN); */                    /* ignore SIGHUP */
>       /*signal(SIGTERM,signal_handler);*/     /* catch SIGTERM */
>       signal(SIGINT,signal_handler);          /* catch SIGINT  */
>
>
> and using this handler
>
> static void signal_handler(int sig) __attribute__(( __noreturn__ ));
> static void signal_handler(int sig)
> {
>       switch (sig) {
>               case SIGINT:
>                       puts("SIGINT signal catched");
>                       break;
>               case SIGTERM:
>                       puts("SIGTERM signal catched");
>                       break;
>       }
>       /* Do something useful here */
>       exit(EXIT_FAILURE);
> }

As puts() is not guaranteed to be async-signal-safe, this is undefined 
behaviour.

Chris