Is D-Bus right for me?

Braden McDaniel braden at
Mon Feb 25 14:10:41 PST 2008

On Mon, 2008-02-25 at 15:05 -0500, Havoc Pennington wrote:
> Hi,
> On Mon, Feb 25, 2008 at 2:49 PM, Braden McDaniel <braden at> wrote:
> >  Mapping the XEmbed control's interface to a D-Bus service seems fairly
> >  straightforward to me. However, the control requires certain services
> >  from the host process. I haven't figured out how this part would work
> >  using D-Bus. I think my question is this: can an activated service know
> >  what process activated it, and then request a service specifically from
> >  that process?
> >
> Just have the activating process invoke a method on the activated
> service, passing in the unique bus name of the activating process.

Ah, of course.

> Note that well-known bus names (the well-known names used to have the
> bus daemon launch a service) are singletons; so if you want two
> instances of your app, you'll need some other mechanism to start them
> and locate them.

Alternatively I could have all host processes share the same service;
and instead of having the service correspond to a single XEmbed control,
it could be a factory for them (where each control instance corresponds
to a D-Bus object). Stop me if this doesn't sound sane.

>  Each app has a unique, non-well-known bus name as
> well, which you need to tell the host process about.

Okay. This fills in the picture for me, I think. Thanks.

Braden McDaniel                           e-mail: <braden at>
<>                    Jabber: <braden at>

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