From owner-freebsd-hackers@FreeBSD.ORG  Mon Jul 16 11:34:32 2007
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
X-Original-To: freebsd-hackers@freebsd.org
Delivered-To: freebsd-hackers@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id DCD6E16A409
	for <freebsd-hackers@freebsd.org>; Mon, 16 Jul 2007 11:34:32 +0000 (UTC)
	(envelope-from peterjeremy@optushome.com.au)
Received: from turion.vk2pj.dyndns.org
	(c220-239-20-82.belrs4.nsw.optusnet.com.au [220.239.20.82])
	by mx1.freebsd.org (Postfix) with ESMTP id 67F7F13C47E
	for <freebsd-hackers@freebsd.org>; Mon, 16 Jul 2007 11:34:31 +0000 (UTC)
	(envelope-from peterjeremy@optushome.com.au)
Received: from turion.vk2pj.dyndns.org (localhost.vk2pj.dyndns.org [127.0.0.1])
	by turion.vk2pj.dyndns.org (8.14.1/8.14.1) with ESMTP id l6GBYRE5066789;
	Mon, 16 Jul 2007 21:34:27 +1000 (EST)
	(envelope-from peter@turion.vk2pj.dyndns.org)
Received: (from peter@localhost)
	by turion.vk2pj.dyndns.org (8.14.1/8.14.1/Submit) id l6GBYPaa066788;
	Mon, 16 Jul 2007 21:34:25 +1000 (EST) (envelope-from peter)
Date: Mon, 16 Jul 2007 21:34:25 +1000
From: Peter Jeremy <peterjeremy@optushome.com.au>
To: Julian Elischer <julian@elischer.org>
Message-ID: <20070716113425.GC65937@turion.vk2pj.dyndns.org>
References: <de5dfb5a0707041727j3e3518f9l5a019717a9f90aa@mail.gmail.com>
	<20070705122650.GE1302@britannica.bec.de>
	<468E16E6.6030608@delphij.net> <20070706112453.GA3217@hoeg.nl>
	<468E7007.5050607@elischer.org> <20070715211549.GB39075@hoeg.nl>
	<469AB30A.5000001@elischer.org>
MIME-Version: 1.0
Content-Type: multipart/signed; micalg=pgp-sha1;
	protocol="application/pgp-signature"; boundary="J/dobhs11T7y2rNN"
Content-Disposition: inline
In-Reply-To: <469AB30A.5000001@elischer.org>
X-PGP-Key: http://members.optusnet.com.au/peterjeremy/pubkey.asc
User-Agent: Mutt/1.5.16 (2007-06-09)
Cc: FreeBSD Hackers <freebsd-hackers@freebsd.org>
Subject: Re: add closefrom() call
X-BeenThere: freebsd-hackers@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: Technical Discussions relating to FreeBSD
	<freebsd-hackers.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>, 
	<mailto:freebsd-hackers-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-hackers>
List-Post: <mailto:freebsd-hackers@freebsd.org>
List-Help: <mailto:freebsd-hackers-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-hackers>,
	<mailto:freebsd-hackers-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Mon, 16 Jul 2007 11:34:33 -0000


--J/dobhs11T7y2rNN
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
Content-Transfer-Encoding: quoted-printable

On 2007-Jul-15 16:51:38 -0700, Julian Elischer <julian@elischer.org> wrote:
>> void
>> closefrom(int lowfd)
>> {
>> 	fcntl(lowfd, F_CLOSEM, NULL);
>> }
>
>what on earth would that achieve?
>(as opposed to just a simple syscall)

The only benefit I can think of is minimising the number of syscalls.
Is there any other benefit?

--=20
Peter Jeremy

--J/dobhs11T7y2rNN
Content-Type: application/pgp-signature
Content-Disposition: inline

-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.7 (FreeBSD)

iD8DBQFGm1fB/opHv/APuIcRAkc6AKCbyJ+DbrIosG5rTcr3B25PVmrmgwCgjp76
X/2HU5d0DfwSwTnwwTfvYAE=
=UJbg
-----END PGP SIGNATURE-----

--J/dobhs11T7y2rNN--