[cap-talk] Polaris in CACM

[Karp, Alan H]

Marc Stiegler wrote:
> 
> I had never heard of a "file system filter driver" until you mentioned
> it here. Examining it briefly, I cannot tell if it would have met our
> needs.

I did look at filter drivers.  The file API is not as simple as I
thought it would be, and MarcS already had the copy/sync working.
Copy/sync also fits better with our goals in developing Polaris.  We
didn't want to modify the OS or the applications.  Also, we didn't want
to be in the business of intercepting system calls, which involves
making a goodness/badness decision.  There's very little that can go
wrong with the synchronizer, and there are no decisions to be made.  

_________________________
Alan Karp
Principal Scientist
Virus Safe Computing Initiative
Hewlett-Packard Laboratories 
1501 Page Mill Road
Palo Alto, CA 94304
(650) 857-3967, fax (650) 857-7029
https://ecardfile.com/id/Alan_Karp
http://www.hpl.hp.com/personal/Alan_Karp/
  
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