Re: org.freedesktop.DBus.ObjectManager in glibmm?

[Johannes Dohmen <johannes dohmen amano eu>]

Hi Andrey,

yes, I know this thread (this was my starting point trying to construct 
the response for GetManagedObjects by myself).
I can use the same type you mention at
https://bugzilla.gnome.org/show_bug.cgi?id=747508
to cast_dynamic from a response of GetManagedObjects from another Dbus 
object.
However I cannot use this type with 
Gio::DBus::MethodInvocation::return_value(const 
Glib::VariantContainerBase& parameters)
as it fails with an runtime assertion:
Type of return value is incorrect: expected '(a{oa{sa{sv}}})', got 
'(a{sa{sa{sv}}})''


Regards Johannes

Am 17.08.2016 um 09:29 schrieb Andrejs Hanins:
> Hi,
>
>     I had a very similar problem discussed here http://marc.info/?t=142780233100003&r=1&w=2
>
>     Hope it helps!
>
> BR, Andrey
>
>
> On 08/17/2016 10:15 AM, Johannes Dohmen wrote:
> > Hi there.
> >
> > I have a question regarding glibmm and its dbus implementation.
> > Does glibmm (directly) support an ObjectManager (org.freedesktop.DBus.ObjectManager) like Gio (I think) does? If not is 
> > there a different/better approach to answer a "GetManagedObjects" call I receive through dbus?
> >
> > At the moment I try to provided an answer through a allback given by Gio::DBus::InterfaceVTable
> >
> > However I cannot construct a valid answer and I am not sure if this is the proper way of doing it.
> > Anyway, I tried the following:
> >
> > typedef std::map<Glib::ustring, map<Glib::ustring, std::map<Glib::ustring, Glib::VariantBase> > > 
> > managed_objects_t;
> > Glib::Variant<managed_objects_t> response = Glib::Variant<managed_objects_t>::create(tmp);
> > invocation->return_value(Glib::Variant<managed_objects_t>::create_tuple(response));
> >
> > But when the callback is executed I get:
> > (process:22695): GLib-GIO-WARNING **: Type of return value is incorrect: expected '(a{oa{sa{sv}}})', got 
> > '(a{sa{sa{sv}}})''
> >
> > I cannot change the first template argument of managed_objects_t to
> > Glib::VariantStringBase
> > which could hold an Object-path, but does not have operator< implemented (needed for std::map).
> >
> > Background information:
> > I think I need this because bluez seems to rely on the GetManagedObjects method of the ObjectManager 
> > interface.
> >
> > Thanks for your help
> >
> > Johannes
> >
> > (Re-send after joining the mailing list. Sorry for any inconvenience.)
> > _______________________________________________
> > gtkmm-list mailing list
> > gtkmm-list gnome org
> > https://mail.gnome.org/mailman/listinfo/gtkmm-list



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