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From: Chris Faylor <cgf AT cygnus DOT com>
Date: Mon, 20 Mar 2000 14:27:39 -0500
To: cygwin-developers AT sourceware DOT cygnus DOT com
Subject: Re: New Win98 problem, similar to _unlink problem
Message-ID: <20000320142739.A23689@cygnus.com>
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In-Reply-To: <200003201922.LAA00566@cygnus.com>; from rdparker@butlermfg.com on Mon, Mar 20, 2000 at 01:19:36PM -0600

On Mon, Mar 20, 2000 at 01:19:36PM -0600, Parker, Ron wrote:
>> -----Original Message-----
>> From: Chris Faylor [mailto:cgf AT cygnus DOT com]
>
><snip>
>
>> You're renaming an opened file.  AFAIK, that particular problem is
>> insurmountable in Windows.
>
>I do know that under some circumstances in NT it is possible to rename an
>executable while it is running and therefore open and memory mapped. I have
>not yet figured out what flags are used to open a file and still allow it to
>be renamed.  
>
>Since the opening of an executable occurs deep within the OS this may be a
>red herring and the file open modes that are used to allow this may not be
>available to an enduser application.
>
>A simple example of this is to create a simple C program, compile and step
>into it in the debugger, then rename the EXE in Windows Explorer.  This is
>allowed, but if you attempt to delete the file in Explore, access is denied.
>
>The HandleEx and NTFilMon programs from Sysinternals showed that the
>executable was in fact open while being debugged and renamed.

Ok.  I would appreciate it if someone would investigate this and discover
exactly what needs to be done.

cgf