Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
Date: Thu, 17 Feb 2005 13:42:53 +0100
From: Corinna Vinschen <corinna-cygwin AT cygwin DOT com>
To: cygwin AT cygwin DOT com
Subject: Re: more ctime bugs
Message-ID: <20050217124253.GU2597@cygbert.vinschen.de>
Reply-To: cygwin AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
References: <020920052127 DOT 27398 DOT 420A803A0009BD7500006B0622007507440A050E040D0C079D0A AT comcast DOT net> <20050211093508 DOT GB27256 AT cygbert DOT vinschen DOT de> <420CBCE6 DOT 60603 AT byu DOT net> <20050211142542 DOT GE2597 AT cygbert DOT vinschen DOT de> <loom DOT 20050213T052458-195 AT post DOT gmane DOT org> <20050217123125 DOT GT2597 AT cygbert DOT vinschen DOT de>
Mime-Version: 1.0
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <20050217123125.GT2597@cygbert.vinschen.de>
User-Agent: Mutt/1.4.2i

On Feb 17 13:31, Corinna Vinschen wrote:
> On Feb 13 04:30, Eric Blake wrote:
> > I see the new has_changed flag in the 20050211 snapshot.  But you still have to
> > add a call to touch_ctime() within the stat() family of calls if has_changed is
> > set, in order to comply with the required semantics; stat and lstat are not
> > allowed to return out-of-date timestamps.
> 
> You know that this contradicts the target to maintain speed on write?
> It's not done with adding a call to touch_ctime() to fstat, because
> that only affects the application which also has written to the file.
> If I read SUSv3 correctly, any call to stat/fstat/lstat on the file
> by any application would require to update the timestamp.  That's no
> fun.  I'm willing to simply ignore this.

I've called touch_ctime in fstat nevertheless.  It's a first approximation.


Corinna

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

--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Problem reports:       http://cygwin.com/problems.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/