Mailing-List:	contact cygwin-help AT sourceware DOT cygnus DOT com; run by ezmlm
List-Subscribe:	<mailto:cygwin-subscribe AT sources DOT redhat DOT com>
List-Archive:	<http://sources.redhat.com/ml/cygwin/>
List-Post:	<mailto:cygwin AT sources DOT redhat DOT com>
List-Help:	<mailto:cygwin-help AT sources DOT redhat DOT com>, <http://sources.redhat.com/ml/#faqs>
Sender:	cygwin-owner AT sources DOT redhat DOT com
Delivered-To:	mailing list cygwin AT sources DOT redhat DOT com
Message-Id:	<4.3.1.2.20000713122755.01dbc620@pop.ma.ultranet.com>
X-Sender:	lhall AT pop DOT ma DOT ultranet DOT com
X-Mailer:	QUALCOMM Windows Eudora Version 4.3.1
Date:	Thu, 13 Jul 2000 12:30:44 -0400
To:	"cygwin AT sourceware DOT cygnus DOT com" <cygwin AT hotpop DOT com>
From:	"Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
Subject:	Re: Have rename() semantics changed?
In-Reply-To:	<20000713122327.A9529@cygnus.com>
References:	<779F20BCCE5AD31186A50008C75D9979171747 AT silldn_mail1 DOT sanwaint DOT com>
	<779F20BCCE5AD31186A50008C75D9979171747 AT silldn_mail1 DOT sanwaint DOT com>
Mime-Version:	1.0

At 12:23 PM 7/13/2000, Chris Faylor wrote:
>On Thu, Jul 13, 2000 at 05:15:06PM +0100, Fifer, Eric wrote:
> >
> >Stewart Greenhill wrote:
> >> The latest cygwin seems not to allow open files to be renamed. This
> >> works under Unix. It is not normally allowed under Windows, but worked
> >> in previous versions of the cygwin environment.
> >> 
> >> Is this an official change, or could it be a bug?
> >
> >I compared strace's on b20.1 and 1.1.2 and the shared argument to
> >CreateFileA has changed.  FILE_SHARE_DELETE was dropped from
> >host_dependent.shared in dcrt0.cc (host_dependent_constants::init).
> >This was the comment at the time:
> >
> >  Sat Mar 18 01:32:04 2000  Christopher Faylor <cgf AT cygnus DOT com>
> >
> >        * dcrt0.cc (host_dependent_constants::init): Eliminate DELETE flag
> >        from shared constant.
> >
> >I put it back and your test program works again.  Perhaps Chris can
> >shed some light on the reason for the change.
>
>Can you still unlink opened files on Windows 9x, Windows NT, and W2K
>with this change?  I believe that is why I removed this.  Either that
>or it prevented files from being opened.  Sorry that I don't remember.
>
>If the above still works, then I'll put this back and comment this
>so we won't have to guess next time.
>
>cgf



According to the MSDN, FILE_SHARE_DELETE is a NT/W2K thingy.  That implies 
that this functionality is only available there.  One would hope that 
enabling it doesn't cause 9x to misbehave but who knows.  I suppose the
constant could be conditionally compiled in if need be...



Larry Hall                              lhall AT rfk DOT com
RFK Partners, Inc.                      http://www.rfk.com
118 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX



--
Want to unsubscribe from this list?
Send a message to cygwin-unsubscribe AT sourceware DOT cygnus DOT com

- Raw text -