Ruby Tk and DRb

ruby-talk
1

Hello @ all!

I wrote a little test code using RubyTk and DRb. But somehow I get
strange errors:

(druby://localhost:9000) /usr/lib/ruby/1.8/tk.rb:2020:in `__invoke':
can't invoke "wm" command: application has been destroyed
(RuntimeError) (DRb::DRbRemoteError)
        from (druby://localhost:9000) /usr/lib/ruby/1.8/tk.rb:2020:in
`_invoke'
        from (druby://localhost:9000) /usr/lib/ruby/1.8/tk.rb:1549:in
`_ip_invoke_core'
        from (druby://localhost:9000) /usr/lib/ruby/1.8/tk.rb:1583:in
`_tk_call_core'
        from (druby://localhost:9000) /usr/lib/ruby/1.8/tk.rb:1607:in
`tk_call'
        from (druby://localhost:9000) /usr/lib/ruby/1.8/tk/wm.rb:271:in
`title'
        from client.rb:7

I don't know why and I hope somebody can help me with this code! Here it
is:

--> SERVER.rb:

    require "drb"
    require "tk"

    class Test
      def startup
        root = TkRoot.new('title'=>"Hallo", 'geometry'=>"200x200")
      end
    end

    test = Test.new
    test.startup

    DRb.start_service('druby://localhost:9000', test)
    Tk.mainloop
    DRb.thread.join

···

--------------------------------------------------------------------------------

--> CLIENT.rb:

    require "drb"
    require "tk"

    DRb.start_service()
    obj = DRbObject.new(nil, 'druby://localhost:9000')

    root = obj.startup

    Tk.mainloop

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