From owner-freebsd-hackers@FreeBSD.ORG  Wed Jan 31 09:29:20 2007
Return-Path: <owner-freebsd-hackers@FreeBSD.ORG>
X-Original-To: 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 4D14816A400
	for <hackers@freebsd.org>; Wed, 31 Jan 2007 09:29:20 +0000 (UTC)
	(envelope-from caelian@gmail.com)
Received: from ug-out-1314.google.com (ug-out-1314.google.com [66.249.92.172])
	by mx1.freebsd.org (Postfix) with ESMTP id DA31213C4B2
	for <hackers@freebsd.org>; Wed, 31 Jan 2007 09:29:19 +0000 (UTC)
	(envelope-from caelian@gmail.com)
Received: by ug-out-1314.google.com with SMTP id o2so116307uge
	for <hackers@freebsd.org>; Wed, 31 Jan 2007 01:29:18 -0800 (PST)
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta;
	h=received:message-id:date:from:user-agent:mime-version:to:cc:subject:references:in-reply-to:content-type:content-transfer-encoding;
	b=kEABzlMC4LM9aTPWNskYRCzko7PoGF7PzZVSJWYAlTzujQPs6FXJZkR0SnQB4MbFylujvh1N+5GweUsWiAjLlu31Fx0bO4dzt4BzaWrErEDrGW49Tgegp525K61wYm89xyXCTs50lW3XVGL0qYFMLIgjMB+bvOuzJv9cUqJmrK0=
Received: by 10.67.119.13 with SMTP id w13mr753139ugm.1170235758616;
	Wed, 31 Jan 2007 01:29:18 -0800 (PST)
Received: from chekov.ufp.fli4l ( [87.166.102.193])
	by mx.google.com with ESMTP id e23sm729468ugd.2007.01.31.01.29.17;
	Wed, 31 Jan 2007 01:29:17 -0800 (PST)
Message-ID: <45C06167.60401@gmail.com>
Date: Wed, 31 Jan 2007 10:29:11 +0100
From: Pascal Hofstee <caelian@gmail.com>
User-Agent: Thunderbird 2.0b1 (X11/20061222)
MIME-Version: 1.0
To: Peter Jeremy <peterjeremy@optushome.com.au>
References: <45C04593.2090704@gmail.com>
	<20070131085206.GW892@turion.vk2pj.dyndns.org>
In-Reply-To: <20070131085206.GW892@turion.vk2pj.dyndns.org>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Cc: hackers@freebsd.org
Subject: Re: a question regarding <sys/shm.h>
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: Wed, 31 Jan 2007 09:29:20 -0000

Peter Jeremy wrote:
> Whilst I agree that the Linux defn is the more sensible one, System V
> IPC and common sense are not commonly found together.  Tradionally the
> definition was "int".  It appears that the definition changed from
> "int" to "size_t" in issue 5 of the Open Group base definition but
> FreeBSD has not caught up with this.
> 
> I'm not sure what plans there are to change this.  You could try
> putting together a patch to address this and submitting it as a PR
> (this means addressing all references to shm_segsz in the base
> system, not just <sys/shm.h>).

First of all, thanks for the quick response. At the very least this 
sheds some light onto the history and how this situation likely came to 
pass. I'll see if i can put together a patch during the next week or so 
that would bring our definitions regarding System V IPC in synch, i'll 
also try to see if i can find additional occurances of similar 
discrepancies so these could be fixed in a single run.

Any additional sugestions/objections are always greatly appreciated.

-- 
   Pascal Hofstee