Subj : Re: pthreads: cancelling thread blocked on berkeley socket accept()
To   : comp.programming.threads
From : David Schwartz
Date : Mon Sep 19 2005 12:35 pm


"David Hopwood" <david.nospam.hopwood@blueyonder.co.uk> wrote in message 
news:KmBXe.865$MD4.78@fe1.news.blueyonder.co.uk...

> You should set a shared 'shouldExit' flag and close() the socket from the
> main thread. The listening thread will get an error from the accept(), and
> can then exit when it sees that 'shouldExit' is set.

    Note that this is a very dangerous thing to do and should only be done 
as part of a shutdown process. It can cause terrible corruption.

    Hint: How can you be 100% sure the other thread is actually in 'accept' 
as opposed to *about* to call 'accept' but not in it yet?

    DS

.