mesos.py 文件源码

def run(self):
        """Run the helper threads in this class which enable streaming
        of STDIN/STDOUT/STDERR between the CLI and the Mesos Agent API.

        If a tty is requested, we take over the current terminal and
        put it into raw mode. We make sure to reset the terminal back
        to its original settings before exiting.
        """

        # Without a TTY.
        if not self.tty:
            try:
                self._start_threads()
                self.exit_event.wait()
            except Exception as e:
                self.exception = e

            if self.exception:
                raise self.exception
            return

        # With a TTY.
        if util.is_windows_platform():
            raise DCOSException(
                "Running with the '--tty' flag is not supported on windows.")

        if not sys.stdin.isatty():
            raise DCOSException(
                "Must be running in a tty to pass the '--tty flag'.")

        fd = sys.stdin.fileno()
        oldtermios = termios.tcgetattr(fd)

        try:
            if self.interactive:
                tty.setraw(fd, when=termios.TCSANOW)
                self._window_resize(signal.SIGWINCH, None)
                signal.signal(signal.SIGWINCH, self._window_resize)

            self._start_threads()
            self.exit_event.wait()
        except Exception as e:
            self.exception = e

        termios.tcsetattr(
            sys.stdin.fileno(),
            termios.TCSAFLUSH,
            oldtermios)

        if self.exception:
            raise self.exception