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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>
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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.
>
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