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Re: Locking UI comments

From: Brian W. Fitzpatrick <fitz_at_collab.net>
Date: 2004-10-14 17:31:01 CEST

On Wed, 2004-10-13 at 16:31, Mark Benedetto King wrote:
> On Wed, Oct 13, 2004 at 03:30:59PM -0500, Brian W. Fitzpatrick wrote:
> > On Wed, 2004-10-13 at 14:13, Justin Erenkrantz wrote:
> > > --On Wednesday, October 13, 2004 1:22 PM -0400 Mark Benedetto King
> > > <mbk@lowlatency.com> wrote:
> > >
> > > > I think it should be atomic, in the following way:
> > > >
> > > > Client -> Server
> > > >
> > > > LOCK /foo.c @ r1234
> > > >
> > > > Server -> Client
> > >
> > > FWIW, that won't mesh at all with WebDAV's LOCK model. In WebDAV, you just
> > > lock the entire resource not a specific version. So, at the very least, if we
> > > tried to lock a resource/version pair, we'd likely lock out most WebDAV
> > > clients from participating. And, that'd be real bad, IMHO. -- justin
> >
> > I don't understand the utility of locking a path at a specific
> > revision--you can't edit the contents of a revision.
> >
>
> That's not a peg notation, that's saying "I have revision 1234 of /foo.c and
> I want to acquire a lock on /foo.c".

Ah. OK. I got it now.

> The response from the server is either "okay, here is your lock token"
> or "sorry, that's not the youngest revision of /foo.c" or "sorry, something
> else has gone wrong".

*nod*

> Blind LOCKing is something that a normal WebDAV client could do, but that
> doesn't prevent us from supporting a LOCK request that does automatic and
> atomic update-to-dateness checking; I don't think they're mutually
> exclusive.

Agreed.

-Fitz

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Received on Thu Oct 14 17:31:28 2004

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