dev_linux_host.py 文件源码

def get(self, init_start=False, retry_count=1):
        """Get or start linux host instance.

        Args:
            init_start(bool):  Perform switch start operation or not
            retry_count(int):  Number of retries to start(restart) linux host

        Returns:
            None or raise an exception.

        Notes:
            Also self.opts.fail_ctrl attribute affects logic of this method.
            fail_ctrl is set in py.test command line options (read py.test --help for more information).

        """
        # If fail_ctrl != "restart", restart retries won't be performed
        # as restart is not implemented for lhosts, retries makes no sense.
        # if self.opts.fail_ctrl != "restart":
        #    retry_count = 1

        try:
            if init_start:
                self.start()
            else:
                self.waiton()
        except KeyboardInterrupt as ex:
            message = "KeyboardInterrupt while checking device {0}({1})...".format(
                self.name, self.ipaddr)
            self.class_logger.info(message)
            self.sanitize()
            pytest.exit(message)
        except Exception:
            self.class_logger.error(
                "Error while checking device %s(%s)...", self.name, self.ipaddr)
            exc_type, exc_value, exc_traceback = sys.exc_info()
            traceback_message = traceback.format_exception(exc_type, exc_value, exc_traceback)
            message = "Error while checking device {0}({1}):\n{2}".format(
                self.name, self.ipaddr, "".join(traceback_message))
            sys.stderr.write(message)
            sys.stderr.flush()
            pytest.fail(message)