module ActionController::Live

def process(name)
  t1 = Thread.current
  locals = t1.keys.map { |key| [key, t1[key]] }
  # This processes the action in a child thread. It lets us return the
  # response code and headers back up the rack stack, and still process
  # the body in parallel with sending data to the client
  Thread.new {
    t2 = Thread.current
    t2.abort_on_exception = true
    # Since we're processing the view in a different thread, copy the
    # thread locals from the main thread to the child thread. :'(
    locals.each { |k,v| t2[k] = v }
    begin
      super(name)
    rescue => e
      begin
        @_response.stream.write(ActionView::Base.streaming_completion_on_exception) if request.format == :html
        @_response.stream.call_on_error
      rescue => exception
        log_error(exception)
      ensure
        log_error(e)
        @_response.stream.close
      end
    ensure
      @_response.commit!
    end
  }
  @_response.await_commit
end