Subject: Re: MS Word does NOT do this!
From: sam th (sam@uchicago.edu)
Date: Tue Aug 08 2000 - 23:58:24 CDT
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On Tue, 8 Aug 2000, Pierre Abbat wrote:
> >What happens is that the kernal detects that a program is attempting
> >to access a region of memory it is not allowed to. It sends a signal to
> >the running application informing the application of this problem. Now
> >this is a very bad thing for the application to be doing and means
> >something has gone gone horribally wrong somewhere. Abi intercepts this
> >signal and attempts to save the file. If abi has not become too corrupted
> >this works.
>
> When it does this, does it make sure NOT to overwrite any existing file? If it
> overwrites a file when crashing, it may well write garbage to it and trash the
> file.
>
The backup code writes the file CURRENT_FILE.bak (where current file is
replaced by the current file name). So if that already exists, it will
overwrite it. If people have better suggestions for this, I am open to
them.
sam th
sam@uchicago.edu
http://www.abisource.com/~sam/
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