dev_linux_host.py 文件源码

def waiton(self, timeout=DEFAULT_SERVER_WAIT_ON_TIMEOUT):
        """Wait until device is fully operational.

        Args:
            timeout(int):  Wait timeout

        Raises:
            SwitchException:  device doesn't response

        Returns:
            dict:  Status dictionary from probe method or raise an exception.

        """
        status = None
        message = "Waiting until device {0}({1}) is up.".format(self.name, self.ipaddr)
        self.class_logger.info(message)
        stop_flag = False
        end_time = time.time() + timeout
        while not stop_flag:
            if loggers.LOG_STREAM:
                sys.stdout.write(".")
                sys.stdout.flush()
            if time.time() < end_time:
                # While time isn't elapsed continue probing switch.
                try:
                    status = self.probe()
                except KeyboardInterrupt:
                    message = "KeyboardInterrupt while checking switch {0}({1})...".format(
                        self.name, self.ipaddr)
                    self.class_logger.info(message)
                    self.sanitize()
                    pytest.exit(message)
                if status["isup"]:
                    stop_flag = True
            else:
                # Time is elapsed.

                port = self._get_port_for_probe()
                message = "Timeout exceeded. IP address {0} port {1} doesn't respond.".format(
                    self.ipaddr, port)
                self.class_logger.warning(message)
                raise Exception(message)
            if not stop_flag:
                time.sleep(0.75)

        return status