Sharing an enumerator across threads

Question

I want to call a common enumerator from different threads. When I do the following,

enum = (0..1000).to_enum
t1 = Thread.new do
  p enum.next
  sleep(1)
end
         


        

Answer 1

You can use Queue

queue = Queue.new
(0..1000).map(&queue.method(:push))

t1 = Thread.new do
  while !queue.empty?
    p queue.pop(true)
    sleep(0.1)
  end
end
t2 = Thread.new do
  while !queue.empty?
    p queue.pop(true)
    sleep(0.1)
  end
end
t1.join
t2.join