Example #1
0
class Sequencer(object):

    def __init__(self, poller=None):
        self._expireq = []
        self._poller = poller or asyncio.Poll()
        self._duration_timer = FDTimer(CLOCK_MONOTONIC, nonblocking=1)
        self._poller.register_fd(self._duration_timer.fileno(), asyncio.EPOLLIN, self._duration_timeout)

    def __del__(self):
        self.close()

    def fileno(self):
        return self._poller.fileno()

    poller = property(lambda self: self._poller)

    def close(self):
        if self._poller is not None:
            self._poller.unregister_all()
            self._duration_timer.close()
            for expire, task in self._expireq:
                task.close()
            self._poller = None
            self._duration_timer = None
            self._expireq = []

    def add_task(self, callback, period=0.0, delay=0.0, duration=None, callback_args=()):
        task = PeriodicTask(callback, period, delay, callback_args)
        self._poller.register(task)
        if duration:
            expire = monotonic() + duration + delay
            heappush(self._expireq, (expire, task))
            self._duration_timer.settime(self._expireq[0][0], 0.0, absolute=True)

    def _duration_timeout(self):
        count = self._duration_timer.read()
        expire, task = heappop(self._expireq)
        task.stop()
        self._poller.unregister(task)
        task.close()
        if self._expireq:
            self._duration_timer.settime(self._expireq[0][0], 0.0, absolute=True)
        else:
            self._duration_timer.settime(0.0, 0.0)
            #self._poller.unregister_fd(self._duration_timer.fileno())

    def run(self, progress_cb=None):
        poller = self._poller
        while self._expireq:
            poller.poll(5.0)
            if progress_cb is not None:
                progress_cb(len(self._expireq))
Example #2
0
 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)
Example #3
0
 def __init__(self, poller=None):
     self._expireq = []
     self._poller = poller or asyncio.Poll()
     self._duration_timer = FDTimer(CLOCK_MONOTONIC, nonblocking=1)
     self._poller.register_fd(self._duration_timer.fileno(), asyncio.EPOLLIN, self._duration_timeout)
Example #4
0
 def __init__(self, poller=None):
     self._expireq = []
     self._poller = poller or asyncio.Poll()
     self._duration_timer = FDTimer(CLOCK_MONOTONIC, nonblocking=1)
     self._poller.register_fd(self._duration_timer.fileno(),
                              asyncio.EPOLLIN, self._duration_timeout)
Example #5
0
class Sequencer(object):
    def __init__(self, poller=None):
        self._expireq = []
        self._poller = poller or asyncio.Poll()
        self._duration_timer = FDTimer(CLOCK_MONOTONIC, nonblocking=1)
        self._poller.register_fd(self._duration_timer.fileno(),
                                 asyncio.EPOLLIN, self._duration_timeout)

    def __del__(self):
        self.close()

    def fileno(self):
        return self._poller.fileno()

    poller = property(lambda self: self._poller)

    def close(self):
        if self._poller is not None:
            self._poller.unregister_all()
            self._duration_timer.close()
            for expire, task in self._expireq:
                task.close()
            self._poller = None
            self._duration_timer = None
            self._expireq = []

    def add_task(self,
                 callback,
                 period=0.0,
                 delay=0.0,
                 duration=None,
                 callback_args=()):
        task = PeriodicTask(callback, period, delay, callback_args)
        self._poller.register(task)
        if duration:
            expire = monotonic() + duration + delay
            heappush(self._expireq, (expire, task))
            self._duration_timer.settime(self._expireq[0][0],
                                         0.0,
                                         absolute=True)

    def _duration_timeout(self):
        count = self._duration_timer.read()
        expire, task = heappop(self._expireq)
        task.stop()
        self._poller.unregister(task)
        task.close()
        if self._expireq:
            self._duration_timer.settime(self._expireq[0][0],
                                         0.0,
                                         absolute=True)
        else:
            self._duration_timer.settime(0.0, 0.0)
            #self._poller.unregister_fd(self._duration_timer.fileno())

    def run(self, progress_cb=None):
        poller = self._poller
        while self._expireq:
            poller.poll(5.0)
            if progress_cb is not None:
                progress_cb(len(self._expireq))