terminal.py 文件源码

def __init__(self, *args, **kwargs):
        self.io_loop = IOLoop.current()
        self.creation_times = {}
        if 'timeout' in kwargs:
            self.timeout = kwargs.pop('timeout')
        if 'interval' in kwargs:
            self.interval = kwargs.pop('interval')
        super(AutoExpireDict, self).__init__(*args, **kwargs)
        # Set the start time on every key
        for k in self.keys():
            self.creation_times[k] = datetime.now()
        self._key_watcher = PeriodicCallback(
            self._timeout_checker, self.interval, io_loop=self.io_loop)
        self._key_watcher.start() # Will shut down at the next interval if empty