Re: [dbus-cplusplus-devel] dispatcher timeout

[Jason G. <jgl...@go...>]

see main() for how we attach the dbus-c++ dispatcher to the glib main loop.

http://git.chromium.org/gitweb/?p=cashew.git;a=blob;f=src/main.cc;h=d7f64fe5f37b99e91d7eb2ef9e4566f01833e521;hb=HEAD#l102

-Jason

On Mon, Dec 6, 2010 at 1:04 PM, Theodore A. Roth <ta...@gm...> wrote:

> On Mon, Dec 6, 2010 at 7:31 AM, Jason Glasgow <jgl...@go...> wrote:
> > You might try using g_timeout_add_seconds.  We have used it with
> dbus-c++.
> >
> http://git.chromium.org/gitweb/?p=cashew.git;a=blob;f=src/device.cc;h=b5ac6f5103d8a1c05e82b0f6633d7bd6b965b6a0;hb=HEAD
> > -Jason
>
> Jason,
>
> Right. That's exactly what I want to do, but doesn't using
> g_timeout_add_seconds() imply that you are using the glib event loop
> and thus have to link to glib?
>
> I need to integrate my dispatcher with our own event loops so need to
> be event loop agnostic and we want to avoid using glib if possible.
>
> I was under the (most likely mistaken) impression the the generic
> dispatcher provided its own event loop which got started when you
> invoke dispatcher.enter(). Sounds like I need to do some more homework
> into how the dispatcher works. ;-)
>
> I have written some simple python apps that use the glib event loop to
> send a heartbeat signal and  I was hoping to achieve the same thing
> using the default dispatcher.
>
> Ted Roth
>
> >
> > On Sun, Dec 5, 2010 at 4:58 PM, Andreas Volz <li...@br...>
> wrote:
> >>
> >> Am Fri, 3 Dec 2010 16:23:08 -0700 schrieb Theodore A. Roth:
> >>
> >> > I've been trying to figure out how to register a timeout callback with
> >> > the dispatcher so that my callback function will be invoked
> >> > periodically by the dispatcher main loop. The
> >> > BusDispatcher::add_timeout() method seems to take an internal timeout
> >> > object as an argument which leads me to believe that I can't use that.
> >> >
> >> > I'm still in the learning dbus-c++ phase and my app is a rather simple
> >> > server based on the echo demo, but I've stripped it down to only a
> >> > Hello method and a single signal. My goal is to invoked the signal in
> >> > the timeout.
> >> >
> >> > None of the examples in the source repo show how to do what I what,
> >> > and google hasn't been too helpful. If someone has a link to an
> >> > example of this, I would be most appreciative.
> >>
> >> Hello Ted,
> >>
> >> yes, BusDispatcher::add_timeout() is for another reason. To be honest I
> >> never needed such an feature. Are you sure the C backend of DBus
> >> provides such a feature? Could you name a function?
> >>
> >> I would solve this by writing an interface to a DBus service that
> >> provides you with configurable callbacks. :-)
> >>
> >> regards
> >>        Andreas
> >>
> >>
> >>
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> >
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