Re: Problem with infinite loop in signal handler

[Mirski Paweł <mirskip87@xxxxxxxxx>]

Hello,
Not exactly infinite loop but sigsuspend. Infinite loop was only
example to show the problem. Without printf in sig handler problem
also occures.
I am writing simple stop-the-world garbage collector so I need this
construction to stop (almost)all threads in application. I think only
solution for this problem is not using any stream that client
application may use.
Thanks for help anyway :)

W dniu 26 lipca 2009 15:58 użytkownik Gunnar Larisch
<gunmuc@xxxxxxxxxxxxxx> napisał:
> Hi Mirski,
>
> your signal handler function:
>
>> >> void suspend(int sig) {
>> >>    printf("suspending\n");
>> >>    fflush(stdout);
>> >>    while(1);
>> >> }
>
> Have you also tried your programm without calling printf and fflush in the
> signal handler? Do you know the manpage signal (7) ? There is a list of
> Async-signal-safe functions.
>
> Can you tell me, why you need an endless loop in the signal
> handler?
>
> Regards,
> Gunnar
>
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