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Re: cap exchange race with map/unmap
From: |
Ludovic Courtès |
Subject: |
Re: cap exchange race with map/unmap |
Date: |
Wed, 19 Oct 2005 09:52:40 +0200 |
User-agent: |
Gnus/5.110004 (No Gnus v0.4) Emacs/21.4 (gnu/linux) |
Hello,
Marcus Brinkmann <address@hidden> writes:
> At Tue, 18 Oct 2005 14:27:56 -0400,
> "Jonathan S. Shapiro" <address@hidden> wrote:
>
> [A broken protocol snipped]
>
>> I believe that the only possible protocol that could be correct is for
>> all object servers to return by way of CapServer.
>
> I agree. This is exactly what I proposed in my talk in Dijon.
>
> The server maps a revocable copy to the cap server. The cap server
> maps another revocable copy to each client.
Marcus, how is this different from what Jonathan described in
<address@hidden>, that is:
In the absence of any authority to fabricate new capabilities, the
following chain of mappings is now in effect after the exchange:
RevCopy RevCopy
A ----------> CapServer -----------> B
It feels like the CapServer thing is anyway quite complex compared to
having a primitive COPY operation.
Thanks,
Ludovic.
- Re: cap exchange race with map/unmap, (continued)
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/18
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/18
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/18
- Re: cap exchange race with map/unmap, Espen Skoglund, 2005/10/18
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/18
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/19
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/18
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/18
- Re: cap exchange race with map/unmap,
Ludovic Courtès <=
- Re: cap exchange race with map/unmap, Bas Wijnen, 2005/10/19
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Re: cap exchange race with map/unmap, Bas Wijnen, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Jonathan S. Shapiro, 2005/10/19
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19
- Re: cap exchange race with map/unmap, Neal H. Walfield, 2005/10/19
- Re: cap exchange race with map/unmap, Marcus Brinkmann, 2005/10/19