Proposing ObjectManager interface
will.thompson at collabora.co.uk
Tue Mar 1 05:59:28 PST 2011
On 01/03/11 12:55, David Zeuthen wrote:
> On Tue, Mar 1, 2011 at 6:07 AM, Simon McVittie
> <simon.mcvittie at collabora.co.uk> wrote:
>> On Mon, 28 Feb 2011 at 17:20:45 -0500, David Zeuthen wrote:
>> That's arg0path='/org/app/subtree/', which also matches signals emitted
>> from /org and /org/app (I don't know why Ryan made it do that - perhaps to
>> make it symmetric, so it can be an equivalence relation? - but it doesn't seem
>> likely to be a practical problem).
> Hmm, that's what I originally thought too when I designed the
> ObjectManager stuff but I think it's wrong. I mean, the intention is
> to match any message that concerns a path (not argument) that matches
> the glob /org/app/subtree* - this doesn't have anything to do with
> arg0path since the message may not even have any arguments. Right?
I think my branch on https://bugs.freedesktop.org/show_bug.cgi?id=31818
makes it possible to do this subtree matching on the path header of the
message (though I could be wrong, it's been a while).
The branch also documents why Ryan made it work how it does. The short
answer is “dconf”.
It doesn't match on any object paths anywhere in the message: do we
really want to go down that road? What if a message contains paths
inside variants inside dicts, should we match those? (I could be
misunderstanding your mail.)
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