[cap-talk] Client Utility notes (was: Re: Persistence as a cap value)

Karp, Alan H alan.karp at hp.com
Sat Mar 15 19:37:34 EDT 2008


Jed wrote:
>
> After a system restart presumably everything had to be rebuilt
> from the available persistent resources.  Did any capabilities
> to them get rebuilt at that time or were they also persistent?
>
The capabilities to persistent resources were persistent.
>
> When a Client Utility system was restarted I presume that
> all user state was recreated from persistent resources
> (a tautology, but just checking) *and* persistent
> capabilities?  That is, unlike a system like Mach,
> the Client Utility system didn't depend on a persistent
> set of resources and access control metadata for them
> that was independent of its capability structure?
>
Correct.  The only metadata describing the permission state was the persistent c-lists.

________________________
Alan Karp
Principal Scientist
Virus Safe Computing Initiative
Hewlett-Packard Laboratories
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(650) 857-3967, fax (650) 857-7029
http://www.hpl.hp.com/personal/Alan_Karp





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