Re: How to use Gio::DBus::Connection::signal_subscribe?

[Nicolas Jäger <jagernicolas legtux org>]

Hi Christof,

> On Sun, 20 Sep 2015 14:07:58 -0400, Nicolas Jäger wrote:
> > could you try to do something like this :
> >
> >   Glib::ustring *sender = 0; // or nullptr
> >
> >   ...->signal_subscribe( ..., *sender, ... );
>
> That (predictably) segfaults because it's dereferencing a null
> pointer.
>
>
> Christof

well that's what I was expecting... 


Last try, look, are you agree with that :

since,
  Glib::ustring::ustring()      
  « Default constructor, which creates an empty string. »

and,

guint Gio::DBus::Connection::signal_subscribe   (       const SlotSignal&       slot,
                const Glib::ustring&    sender = Glib::ustring(),
                const Glib::ustring&    interface_name = Glib::ustring(),
                const Glib::ustring&    member = Glib::ustring(),
                const Glib::ustring&    object_path = Glib::ustring(),
                const Glib::ustring&    arg0 = Glib::ustring(),
                SignalFlags     flags = Gio::DBus::SIGNAL_FLAGS_NONE 
        )       

if you do something like :

   ...->signal_subscribe(slot);
 
you should have `sender` set to 0. I can't compile anything, I'm building a toolchain...

honestly that's what I would expecting. Otherwise, it's over my knowledge. Good luck!

regards,
nicolas