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Date:      Fri, 2 Sep 2011 15:21:16 +0400
From:      Andrey Chernov <ache@FreeBSD.ORG>
To:        Andriy Gapon <avg@FreeBSD.ORG>
Cc:        freebsd-net@FreeBSD.ORG, freebsd-standards@FreeBSD.ORG, Jilles Tjoelker <jilles@stack.nl>
Subject:   Re: POLLHUP on never connected socket
Message-ID:  <20110902112116.GA23835@vniz.net>
In-Reply-To: <4E60B842.8050506@FreeBSD.org>
References:  <4E60A1B8.7080607@FreeBSD.org> <20110902104018.GA12845@stack.nl> <4E60B842.8050506@FreeBSD.org>

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On Fri, Sep 02, 2011 at 02:04:34PM +0300, Andriy Gapon wrote:
> on 02/09/2011 13:40 Jilles Tjoelker said the following:
> > Ports people have complained about poll() behaviour before, are there
> > configure scripts that attempt to check if we ever return POLLHUP alone
> > and only check for POLLIN if not?
> 
> Not sure about that other software and how POLLIN is related here.
> The software in question (mozilla nspr) checks for POLLNVAL, POLLERR, POLLPRI
> and POLLOUT to determine if anything interesting has happened to a connection
> supposed to be in progress.  They aren't checking for POLLHUP at all and thus
> they keep thinking that the connection is still in progress when they get it.

It seems for such case it should return POLLERR too.

-- 
http://ache.vniz.net/



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