Multi threaded ruby script. Based on http://stackoverflow.com/questions/6558828/thread-and-queue

gistfile1.rb

# Encoding: UTF-8

require 'thread'

queue = Queue.new
threads = []

20.times do
  threads << Thread.new do
    # loop until there are no more things to do
    until queue.empty?
      # pop with the non-blocking flag set, this raises
      # an exception if the queue is empty, in which case
      # work_unit will be set to nil
      work_unit = queue.pop(true) rescue nil
      if work_unit
        begin
          # ....
        rescue Exception => e
          puts "-- Found Exception: #{e}"
        end
      end
    end
  end
end

threads.each { |t| t.join }