gistfile1.txt

#!/usr/bin/env ruby

$LOAD_PATH.push File.expand_path("../../lib", __FILE__)
require "celluloid/autostart"
require "mathn"

#
# Basic spawn example
#

class PrimeWorker
  include Celluloid

  def prime(number)
    puts "slept #{number}"
    return 1 if number.prime?
  end
end

# Spawn of PrimeWorker
worker = PrimeWorker.spawn

(1..5).to_a.map do |i|
  # Call the prime function asynchronously on the spawned threads
  worker.async.prime i
  puts "Main Thread : #{i}"
end

# OUTPUT

# I, [2016-08-07T21:26:17.438360 #86823]  INFO -- : Celluloid 0.17.5 is running in BACKPORTED mode. [ http://git.io/vJf3J ]
# Main Thread : 1
# Main Thread : 2
# Main Thread : 3
# Main Thread : 4
# slept 1
# Main Thread : 5
# slept 2