Re: SIGINT with gtk_main

[Michiel Jan Laurens de Hoon <mdehoon c2b2 columbia edu>]

zz excite it wrote:
> 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);
> }
Yes, but the problem is what to do with the /* Do something useful here */.
Because signal_handler can be called from any position in the code (for 
example, it may be in the middle of a malloc), it's unsafe to do much 
more inside signal_handler than to set a variable as a flag (I'm not 
even sure if puts would be allowed inside signal_handler). And then the 
question is how to let gtk_main know that the flag variable has changed.

--Michiel.


--
Michiel de Hoon
Center for Computational Biology and Bioinformatics
Columbia University
1130 St Nicholas Avenue
New York, NY 10032