termio.py 文件源码

def __init__(self, *args, **kwargs):
        super(MultiplexPOSIXIOLoop, self).__init__(*args, **kwargs)
        from tornado import ioloop
        self.terminating = False
        self.sent_sigint = False
        self.shell_command = ['/bin/sh', '-c']
        self.use_shell = True # Controls whether or not we wrap with the above
        self.env = {}
        self.io_loop = ioloop.IOLoop.current() # Monitors child for activity
        #self.io_loop.set_blocking_signal_threshold(2, self._blocked_io_handler)
        #signal.signal(signal.SIGALRM, self._blocked_io_handler)
        self.reenable_timeout = None
        interval = 100 # A 0.1 second interval should be fast enough
        self.scheduler = ioloop.PeriodicCallback(self._timeout_checker,interval)
        self.exitstatus = None
        self._checking_patterns = False
        self.read_timeout = datetime.now()
        self.capture_limit = -1 # Huge reads by default
        self.restore_rate = None