From owner-freebsd-hackers  Mon Dec 21 11:34:21 1998
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Date: Mon, 21 Dec 1998 14:33:53 -0500 (EST)
From: Daniel Eischen <eischen@vigrid.com>
Message-Id: <199812211933.OAA01713@pcnet1.pcnet.com>
To: eischen@vigrid.com, lching@cisco.com
Subject: Re: pthreads question
Cc: hackers@FreeBSD.ORG
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Larry Ching wrote:

> > A quick glance of the code shows that this is what happens only
> > if the signal is blocked in the thread.  If the signal is unblocked,
> > then the thread should return with EINTR.  Use sigprocmask(2) to
> > unblock the signal in the thread that you want to interrupt.
> 
> Thank you for your help above.  The thread in question was making acall
> to pthread_sigmask(SIG_UNBLOCK,...) to unblock the signal I
> was using in pthread_kill().  I changed this call to
> sigprocmask(SIG_UNBLOCK, ...) with no effect.  The thread remains
> blocked in the read() call and no EINTR error code is returned.
>
> Any suggestions as to where to look next???

You haven't set the action for the signal to SIG_IGN, have you?

Got a simple prgram to demonstrate the problem?

Dan Eischen
eischen@vigrid.com

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