re: open file

FROM : Alex Reynolds
DATE : Fri Nov 29 22:30:15 2002

> Message: 10
> Date: Fri, 29 Nov 2002 14:23:06 +0000
> Subject: Re: open file
> From: Chris Ridd <<email_removed>>
> To: <<email_removed>>
>
> ...As Jeff says, Unix can do advisory locking of files using flock and
> fcntl,
> but if a program wants to ignore advisory locks it can..
>
> May one ask why one wanted to know this? The last person asking this
> turned
> out to want to prevent multiple users from opening the same file so
> that one
> user couldn't accidentally overwrite changes saved by another user.
> This
> sparked a bit of a discussion here ;-)

I am working on an application that creates, destroys, and archives
RAM-based disks. I am now working on the archival part and I don't want
to destroy or archive a disk which contains a file that is currently
open by another application.

I don't want to spark a flame war, but why would wanting to know how to
do this be a bad thing?

-Alex
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