If I try to call #inspect on an actor with an active Notifications subscription, it hangs. If you comment out either the `#inspect` call or the subscription, the program runs and exits quickly.

hanging-celluloid-inspect.rb

# Chris Doherty, code@randomcamel.net

require "celluloid"
require "celluloid/autostart"

class Cell
  include Celluloid
  include Celluloid::Notifications

  attr_reader :count

  TOPIC_BROADCAST = "topic-broadcast"

  def initialize
    @count = 0

    # comment out the subscription and the program runs.
    @sub = subscribe(TOPIC_BROADCAST, :handle_broadcast)
  end

  def send_ping
    @count += 1
    publish(TOPIC_BROADCAST, { :name => "cell #{@count}", :clock => @count })
  end

  def handle_broadcast(topic, payload)
    puts "#{payload[:name]} received message: #{payload.inspect}"
  end

end

c1 = Cell.new

# comment out the call to #inspect and the program runs.
puts c1.inspect
puts "inspect succeeded"
c2 = Cell.new
c1.send_ping