# File lib/pry/input_lock.rb, line 82
    def enter_interruptible_region
      @mutex.synchronize do
        # We patiently wait until we are the owner. This may happen as another
        # thread calls with_ownership() because of a binding.pry happening in
        # another thread.
        @cond.wait(@mutex) until @owners.last == Thread.current

        # We are the legitimate owner of the input. We mark ourselves as
        # interruptible, so other threads can send us an Interrupt exception
        # while we are blocking from reading the input.
        @interruptible = true
      end
    end