Subj : Re: Killing threads
To   : comp.programming.threads
From : Srini Palthepu
Date : Tue Aug 16 2005 06:01 pm

Thanks for the mail.

>>I am having trouble selectively killing threads.
>>When I send SIGKILL or SIGTERM to a thread
>>I end up killing the whole process.
> 
> 
> Yup, that's what the default signal handlers for those signals do.

I see. I was under the impression that, since I am sending the signal to
specific thread, they should go to the thread.

>>Is there something I am overlooking?
>>Is there a standard idiom for doing this kind
>>of thing?
> 
> 
> Why are you trying to kill threads?  Is cancellation not what you want?
> If not, you need to roll your own signalling mechanism.
> Without knowing much more about your application structure, I can't
> offer better suggestions except to say that it's a thoroughly solved
> problem.

My application has a set of daemon threads for doing the work
that are alocated for each client request. But when a thread hangs in
the proces of serving a client for any reason, I need to cleanup.
I am trying to kill the hung thread and respawn a new one as a way
of cleaning up.

I am using ACE toolkit thread framework that essentially
will be translated to Solaris thread sys calls at lowlevel.

thanks
Srini
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