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:	<5.1.0.14.2.20010716010021.00b66740@mail.online.no>
X-Sender:	hardon AT mail DOT online DOT no
X-Mailer:	QUALCOMM Windows Eudora Version 5.1
Date:	Mon, 16 Jul 2001 01:10:59 +0200
To:	Corinna Vinschen <cygwin AT cygwin DOT com>
From:	Gunnar Andre Dalsnes <hardon AT online DOT no>
Subject:	Re: Re: file locking (F_GETLK) porting workaround anyone???
In-Reply-To:	<20010709102828.H8578@cygbert.vinschen.de>
References:	<3B4961EE AT epostleser DOT online DOT no>
	<3B4961EE AT epostleser DOT online DOT no>
Mime-Version:	1.0

At 09.07.01 10:28, you wrote:
>On Mon, Jul 09, 2001 at 09:56:20AM +0200, hardon wrote:
>> Any known workaround for the unimplemented F_GETLK, file locking func???
>> Whats the big deal with this thing anyway??
>> If we don't need the lockers pid, just try std. lock and check for errors, 
>> right??
>
>You're welcome to contribute F_GETLK and F_SETLK(W) in Cygwin if you've
>found a way to implement them correctly.

What's wrong with F_SETLK(W)? Missing signal interrupt support? 
If so, could consistent asynchronous file IO (on NT) fix this?
LockFileEx do support asynchronous IO.

Proper implementation of F_GETLK could be done (on NT) with use of a kernel mode filesystem filter driver.


>Corinna
>
>-- 
>Corinna Vinschen                  Please, send mails regarding Cygwin to
>Cygwin Developer                                mailto:cygwin AT cygwin DOT com
>Red Hat, Inc.
>
>--
>Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
>Bug reporting:         http://cygwin.com/bugs.html
>Documentation:         http://cygwin.com/docs.html
>FAQ:                   http://cygwin.com/faq/


--
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple
Bug reporting:         http://cygwin.com/bugs.html
Documentation:         http://cygwin.com/docs.html
FAQ:                   http://cygwin.com/faq/

- Raw text -