Mailing-List: contact cygwin-developers-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-developers-subscribe AT sources DOT redhat DOT com>
List-Archive: <http://sources.redhat.com/ml/cygwin-developers/>
List-Post: <mailto:cygwin-developers AT sources DOT redhat DOT com>
List-Help: <mailto:cygwin-developers-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender: cygwin-developers-owner AT sources DOT redhat DOT com
Delivered-To: mailing list cygwin-developers AT sources DOT redhat DOT com
Date: Wed, 13 Jun 2001 15:31:23 +0200
From: Corinna Vinschen <vinschen AT redhat DOT com>
To: cygwin-developers AT cygwin DOT com
Subject: Re: fileutils-4.0-3
Message-ID: <20010613153123.K1144@cygbert.vinschen.de>
Reply-To: cygdev <cygwin-developers AT cygwin DOT com>
Mail-Followup-To: cygwin-developers AT cygwin DOT com
References: <Pine DOT GSO DOT 4 DOT 21 DOT 0106122003330 DOT 3791-100000 AT devmail DOT dev DOT tivoli DOT com> <20010613105845 DOT D1144 AT cygbert DOT vinschen DOT de> <12812308989 DOT 20010613152159 AT logos-m DOT ru>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
User-Agent: Mutt/1.2.5i
In-Reply-To: <12812308989.20010613152159@logos-m.ru>; from deo@logos-m.ru on Wed, Jun 13, 2001 at 03:21:59PM +0400

On Wed, Jun 13, 2001 at 03:21:59PM +0400, egor duda wrote:
> Hi!
> 
> Wednesday, 13 June, 2001 Corinna Vinschen cygwin AT cygwin DOT com wrote:
> 
> CV> Typically it's the other way around. If a Win32 application opens
> CV> a file using the `CreateFile' call, it has exclusive access to the
> CV> file while it's opened. If the application want's to share the
> CV> file with other apps, it can do that by giving additional flags
> CV> to `CreateFile' (FILE_SHARE_READ, FILE_SHARE_WRITE). Cygwin's
> CV> open(2) call uses these flags by default.
> 
> well, CreateFile() accepts 0 as second argument, which is what we
> need-- just query information no matter if anyone opened file in
> DENYALL mode. i've just tested it on nt4.0 -- it works fine.
> 
> the only question is whether we should add new parameter to
> fhandler::open(), say 'int cygwin_flags', or define new flag in
> fcntl.h? for me, the first one looks preferable.

Wow. I just read the MSDN entry of CreateFile and I must admit
that I always slipped over that sentence without reading it.
It seems obvious now. If that really works (as you state),
it would be the ultimate solution for `fstat'.

I think you're right using some internal flag. It's not needed
to create a new fcntl flag.

Corinna

-- 
Corinna Vinschen                  Please, send mails regarding Cygwin to
Cygwin Developer                                mailto:cygwin AT cygwin DOT com
Red Hat, Inc.