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Re: Locking server implementation: libsvn_repos or libsvn_fs

From: C. Michael Pilato <cmpilato_at_collab.net>
Date: 2004-11-02 18:33:41 CET

John Peacock <jpeacock@rowman.com> writes:

> > I don't have a strong opinion either way on repos vs. fs, but if we're
> > going to make the decision for that reason, I really really want to see
> > a design document for ACLs. Because I am not at all convinced that a
> > good implementation of a lock table (which maps pathnames to lock
> > tokens, and has no history) shares much in common with a good
> > implementation of an acl system (which maps node-revs to access control
> > lists, and may want to have history).
>
> Except the argument can be made that locks could be implemented as
> temporary ACL's without history and a moving node-rev (if committing
> doesn't free locks, since I don't remember where that argument ended,
> if it did). If we already had ACL's, we could [quickly] have locks
> too, but locking alone isn't going to make is easier to implement
> ACL's.

And that's exactly what I was thinking when I said that. Nobody
disputes that ACLs belong in the filesystem layer. And I believe that
locks are just really limited ACLs.

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Received on Tue Nov 2 18:36:23 2004

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