"""
    Simple timer helper for UPDI stack
"""
import time


class Timeout(object):
    """
        Simple timeout helper in milliseconds.
    """

    def __init__(self, timeout_ms):
        """
            Start the expired counter instantly
        """

        self.timeout_ms = timeout_ms
        self.start_time = time.time()

    def expired(self):
        """
            Check if the timeout has expired
        """
        return time.time() - self.start_time > self.timeout_ms / 1000.0