class Concurrent::TimerSet

def ns_post_task(task)
  return false unless ns_running?
  ns_reset_if_forked
  if (task.initial_delay) <= 0.01
    task.executor.post { task.process_task }
  else
    @queue.push(task)
    # only post the process method when the queue is empty
    @timer_executor.post(&method(:process_tasks)) if @queue.length == 1
    @condition.set
  end
  true
end