public function received_exit_request($requested = null)
	{
		// if we are retreiving the value of the exit request
		if ($requested === null)
		{
			return $this->exit_request_status;
		}

		// ensure we have good data, or set to false if not
		if (!is_bool($requested))
		{
			$requested = false;
		}

		// set and return the ne value
		return ($this->exit_request_status = $requested);
	}