def __init__(self, callback, period=0.0, delay=0.0, callback_args=()):
self._callback = callback
self._args = callback_args
self._period = period
self._timer = timer = FDTimer()
if delay:
timer.settime(delay, period)
else:
timer.settime(period, period)
def __init__(self, poller=None):
self._expireq = []
self._poller = poller or asyncio.Poll()
self._duration_timer = FDTimer(CLOCK_REALTIME)
self._poller.register_fd(self._duration_timer.fileno(),
asyncio.EPOLLIN, self._duration_timeout)