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Subject: RE: cygwin.com suggestions
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Date: Sat, 16 Mar 2002 14:05:59 +1100
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Thread-Topic: cygwin.com suggestions
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From: "Robert Collins" <robert DOT collins AT itdomain DOT com DOT au>
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> -----Original Message-----
> From: Andrew DeFaria [mailto:ADeFaria AT Salira DOT com] 
> Sent: Saturday, March 16, 2002 10:06 AM

> > Same way as Windows installers work.  Just schedule the DLL to be 
> > moved in
> > after reboot.
> 
> But that doesn't really replace the current DLL. IOW the 
> changes are not 
> effective until one reboots. Personally I find this a crummy 
> way to do 
> things but perhaps that's all that can be done.

I think crummy is a little harsh. And yes, other than shutting down all
process's using a file, this is the best that can be done (*).

Rob

*: Well, it's possible that a file system filter driver that redirects
the access to a new file for subsequent opens could provide equivalent
functionality to a linux style delete/replace of in-use files. However I
don't know whether the file system cache/file mapping logic sit above or
below such filters... if they sit above the filter (And I suspect they
do), then the filter would never get invoked, and the file would still
appear to be there.


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