gistfile1.rb

require 'celluloid'

class Foo
  include Celluloid

  def waiting
    puts 'before wait'
    wait :bar
    puts 'after wait' # is never called, why?
  end

  def signaling
    puts 'before signal'
    signal :bar
    puts 'after signal'
  end
end

Foo.new.waiting!
Foo.new.signaling!
sleep 5