Custom themes?

How do I create custom threads to run in a gtk application?

Given this simplified example:

@w = Gtk::Window.new "testtest"
@l = Gtk::Label.new "test"
@w.add @l
@w.show_all
Gtk.main

      

        
        
        
      

    

How can I start a thread like this?

Thread.start { loop { puts 'thread running'; @l.text = Time.now.to_s; sleep 1 }}

      

        
        
        
      

    

I have a timeout based approach like this working with C # timeout_add, but it's not very nice and doesn't work for what I'm really trying to achieve: waiting for dbus signal.

I've tried a lot of things, each of which either hangs with a gtk thread or my own thread. I've also tried using http://ruby-gnome2.sourceforge.jp/hiki.cgi?tips_threads but I'm not sure if this is really the same problem)