X-Recipient:	archive-cygwin AT delorie DOT com
X-SWARE-Spam-Status:	No, hits=-1.8 required=5.0 tests=AWL,BAYES_00
X-Spam-Check-By:	sourceware.org
Message-ID:	<4B24DB01.2040201@t-online.de>
Date:	Sun, 13 Dec 2009 13:16:01 +0100
From:	Christian Franke <Christian DOT Franke AT t-online DOT de>
User-Agent:	Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.4) Gecko/20091017 SeaMonkey/2.0
MIME-Version:	1.0
To:	cygwin AT cygwin DOT com
Subject:	Re: overwriting an in-use executable
References:	<416096c60912130019s5188fdd9w2f561005ba2c8c69 AT mail DOT gmail DOT com>
In-Reply-To:	<416096c60912130019s5188fdd9w2f561005ba2c8c69@mail.gmail.com>
X-IsSubscribed:	yes
Mailing-List:	contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id:	<cygwin.cygwin.com>
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

Andy Koppe wrote:
> cp and mv behave differently when trying to overwrite an in-use executable:
>
> $ cp mintty.exe /bin
> cp: cannot create regular file `/bin/mintty.exe': Device or resource busy
>
> $ mv mintty.exe /bin
> [works fine]
>
> That's on 1.7. On 1.5, both cp and mv fail.
>
>    

Same when trying to 'rm' an in-use executable: Works on 1.7, fails with 
'Permission denied' on 1.5. Cygwin 1.7 works like Linux here. I don't 
know whether POSIX requires this behavior.

The difference probably occurs because 1.7 now uses 
NtSetInformationFile() instead of MoveFileEx() and DeleteFile().

Christian


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

- Raw text -