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Date:      Sat, 9 Sep 2000 01:51:20 -0400 (EDT)
From:      Daniel Eischen <eischen@vigrid.com>
To:        Jake Burkholder <jburkhol@home.com>
Cc:        Alfred Perlstein <bright@wintelcom.net>, smp@FreeBSD.ORG
Subject:   Re: SMPng: catching signals and mutexes. 
Message-ID:  <Pine.SUN.3.91.1000909014730.25268A-100000@pcnet1.pcnet.com>
In-Reply-To: <20000908233301.D27EBBA6D@io.yi.org>

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On Fri, 8 Sep 2000, Jake Burkholder wrote:
> > On Fri, 8 Sep 2000, Alfred Perlstein wrote:
> > > There seems to be no way to specify that a signal is to interrupt
> > > a wait on a mutex, I'm wondering if we should make it possible to
> > > do so.
> > 
> > [...]
> > 
> > > I'm not sure I like this at all, shouldn't there be an 
> > > mtx_enter with some option to return an error if a signal
> > > arrives?
> > 
> > IMHO, yes.  Solaris has cv_wait_sig() for just that.
> > 
> 
> Mutexes are meant to serve a different purpose than tsleep or
> condition variables.
> 
> The next thing in line is to add a mutex argument to tsleep,
> which will be atomicly released and re-acquired upon resume.

So how far are we from removing tsleep in favor of cv_wait()/
cv_wait_sig() or similar?  Let's get rid of tsleep if at all
possible.

-- 
Dan Eischen



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