Reading STDIN with threads in Ruby

stdin_reader.rb

require 'thread'

queue = Queue.new

producer = Thread.new do
  loop do
    key = STDIN.getch
    queue << key if key
  end
end

consumer = Thread.new do
  loop do
    key = queue.pop

    # Pusher code here 

    # ctrl-c
    exit if key == "\u0003"
  end
end

consumer.join