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 MesosException(
"Running with the '--tty' flag is not supported on windows.")
if not sys.stdin.isatty():
raise MesosException(
"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
import signal
import sys
import threading
import time
import uuid
import urllib.parse
from functools import partial
from queue import Queue
from mesos.errors import MesosException
from mesos import http
from mesos import recordio
from mesos import util
if not util.is_windows_platform():
import termios
import tty
class TaskIO(object):
"""Object used to stream I/O between a
running Mesos task and the local terminal.
:param task: task ID
:type task: str
:param cmd: a command to launch inside the task's container
:type cmd: str
:param args: Additional arguments for the command
:type args: str
:param interactive: whether to attach STDIN of the current