From: Chris Friesen <cfriesen@nortelnetworks.com>
To: Davide Libenzi <davidel@xmailserver.org>
Cc: Ben <linux-kernel-junk-email@slimyhorror.com>,
Andrew Morton <akpm@osdl.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Fw: epoll and fork()
Date: Tue, 02 Mar 2004 10:25:24 -0500 [thread overview]
Message-ID: <4044A764.1030304@nortelnetworks.com> (raw)
In-Reply-To: Pine.LNX.4.44.0403020654080.24044-100000@bigblue.dev.mdolabs.com
Davide Libenzi wrote:
> Sorry but what behaviour do you expect by unregistering an fd pushed by
> the parent from inside a child? Events work exactly the same. Since the
> context is shared, events are delivered only once.
For principle of least surprise, I would expect that the refcounts would
be bumped up so that the child could deregister without affecting the
parent.
Closing the fd in the child doesn't affect the fd in the parent.
Removing an fd from an fd_set in the child doesn't affect the fd_set in
the parent. Unregistering an fd from an epoll set in the child
shouldn't affect the parent either.
Chris
--
Chris Friesen | MailStop: 043/33/F10
Nortel Networks | work: (613) 765-0557
3500 Carling Avenue | fax: (613) 765-2986
Nepean, ON K2H 8E9 Canada | email: cfriesen@nortelnetworks.com
next prev parent reply other threads:[~2004-03-02 15:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20040302050233.3b33188b.akpm@osdl.org>
2004-03-02 15:05 ` Fw: epoll and fork() Davide Libenzi
2004-03-02 15:25 ` Chris Friesen [this message]
2004-03-03 10:38 ` Davide Libenzi
2004-03-02 15:38 ` Ben
2004-03-02 15:44 ` Mark Mielke
2004-03-03 10:29 ` Davide Libenzi
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