On Tue, 2012-10-30 at 17:02 +0100, Xavier Claessens wrote: > > One of the main problems as I see it with folks is that it's a > > library, not a daemon. Because of this, every application that uses > > folks has in memory all the information of each persona and > > individual. Besides memory use, this takes time as folks > > IndividualAggregator populates itself with data from the different > > backends. I have wondered from time to time how much of a speed and > > memory improvement could be made by making folks a daemon and letting > > applications talk to it via dbus rather than link to it and load all > > the data in each separate application. The idea to put the links into > > a database solves part of this problem by making the linking data > > persistent on disk, but each application that uses folks still would > > need to load the whole contact list if displaying a contact list, so > > if you have Gnome-contacts and Empathy both running that's already two > > copies of the same data. Maybe that's a moot point since getting the > > data by dbus would give a copy in each application also, not sure. > > Feel free to debunk any of my ideas, I could very well be missing > > something here. > > I'm not sure we want yet another daemon, with yet another dbus spec. If > we can avoid it, like my proposal hopefully does, that's a plus, IMHO. > > One thing I did not discuss where we already have a daemon, is contact > search in gnome-shell. I'm not sure how current search engine works > there, but how I would make it is a daemon that keeps a full aggregator > loaded (because you'll need to lookup all vcard fields). You give a > search string and it returns a list of individual uids. Then your app > can load only those individuals and not the whole thing. This was done > for gnome-shell because we don't want to block the WM with addressbook > change notifications, etc. Note that search dbus API could be > implemented by gnome-contact/empathy process if we keep one of them > always loaded in background.
Note that there is a (fairly bit-rotten) branch to add search capability natively to Folks: https://bugzilla.gnome.org/show_bug.cgi?id=646808 It needs to be rebased, needs a little re-writing to address issues I brought up in later comments, and I'm not sure when we'll have time to do this, but it could make life easier for at least some of our clients (including a search plug-in for the Shell). -Travis
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