Python ioloop.IOLoop方法代碼示例

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def flush(self, timeout=1.0):
        """Immediately processes all pending messages on the iopub channel.

        Callers should use this method to ensure that :method:`call_handlers`
        has been called for all messages that have been received on the
        0MQ SUB socket of this channel.

        This method is thread safe.

        Parameters
        ----------
        timeout : float, optional
            The maximum amount of time to spend flushing, in seconds. The
            default is one second.
        """
        # We do the IOLoop callback process twice to ensure that the IOLoop
        # gets to perform at least one full poll.
        stop_time = time.time() + timeout
        for i in xrange(2):
            self._flushed = False
            self.ioloop.add_callback(self._flush)
            while not self._flushed and time.time() < stop_time:
                time.sleep(0.01) 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def __init__(self, queue):
        self.queue = queue
        self.io_loop = IOLoop(make_current=False)
        context = zmq.Context.instance()
        self.pause_socket = context.socket(zmq.REP)
        self.pause_socket_port = self.pause_socket.bind_to_random_port(
            "tcp://127.0.0.1")
        self.status_socket = context.socket(zmq.PULL)
        self.status_socket_port = self.status_socket.bind_to_random_port(
            "tcp://127.0.0.1")

        self.pause_stream = ZMQStream(self.pause_socket, self.io_loop)
        self.status_stream = ZMQStream(self.status_socket, self.io_loop)

        self.pause_stream.on_recv(self.recv_pause)
        self.status_stream.on_recv(self.recv_status)
        self.thread = threading.Thread(target=self._thread_main)
        self.thread.daemon = True 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_simple(self):
        """simple IOLoop creation test"""
        loop = ioloop.IOLoop()
        loop.make_current()
        dc = ioloop.PeriodicCallback(loop.stop, 200)
        pc = ioloop.PeriodicCallback(lambda : None, 10)
        pc.start()
        dc.start()
        t = Delay(loop.stop,1)
        t.start()
        loop.start()
        if t.isAlive():
            t.abort()
        else:
            self.fail("IOLoop failed to exit") 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_instance(self):
        """Green IOLoop.instance returns the right object"""
        loop = ioloop.IOLoop.instance()
        assert isinstance(loop, ioloop.IOLoop)
        base_loop = BaseIOLoop.instance()
        assert base_loop is loop 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_current(self):
        """Green IOLoop.current returns the right object"""
        loop = ioloop.IOLoop.current()
        assert isinstance(loop, ioloop.IOLoop)
        base_loop = BaseIOLoop.current()
        assert base_loop is loop 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_close_all(self):
        """Test close(all_fds=True)"""
        loop = ioloop.IOLoop.instance()
        req,rep = self.create_bound_pair(zmq.REQ, zmq.REP)
        loop.add_handler(req, lambda msg: msg, ioloop.IOLoop.READ)
        loop.add_handler(rep, lambda msg: msg, ioloop.IOLoop.READ)
        self.assertEqual(req.closed, False)
        self.assertEqual(rep.closed, False)
        loop.close(all_fds=True)
        self.assertEqual(req.closed, True)
        self.assertEqual(rep.closed, True) 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def _queue_send(self, msg):
        """Queue a message to be sent from the IOLoop's thread.

        Parameters
        ----------
        msg : message to send

        This is threadsafe, as it uses IOLoop.add_callback to give the loop's
        thread control of the action.
        """
        def thread_send():
            self.session.send(self.stream, msg)
        self.ioloop.add_callback(thread_send) 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def __init__(self, context, session, address):
        super(ShellChannel, self).__init__(context, session, address)
        self.ioloop = ioloop.IOLoop() 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_simple(self):
        """simple IOLoop creation test"""
        loop = self.IOLoop()
        loop.make_current()
        dc = ioloop.PeriodicCallback(loop.stop, 200)
        pc = ioloop.PeriodicCallback(lambda : None, 10)
        pc.start()
        dc.start()
        t = Delay(loop.stop,1)
        t.start()
        loop.start()
        if t.isAlive():
            t.abort()
        else:
            self.fail("IOLoop failed to exit") 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_instance(self):
        """IOLoop.instance returns the right object"""
        loop = self.IOLoop.instance()
        if not t5asyncio:
            assert isinstance(loop, self.IOLoop)
        base_loop = BaseIOLoop.instance()
        assert base_loop is loop 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_current(self):
        """IOLoop.current returns the right object"""
        loop = ioloop.IOLoop.current()
        if not t5asyncio:
            assert isinstance(loop, self.IOLoop)
        base_loop = BaseIOLoop.current()
        assert base_loop is loop 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def test_close_all(self):
        """Test close(all_fds=True)"""
        loop = self.IOLoop.current()
        req,rep = self.create_bound_pair(zmq.REQ, zmq.REP)
        loop.add_handler(req, lambda msg: msg, ioloop.IOLoop.READ)
        loop.add_handler(rep, lambda msg: msg, ioloop.IOLoop.READ)
        self.assertEqual(req.closed, False)
        self.assertEqual(rep.closed, False)
        loop.close(all_fds=True)
        self.assertEqual(req.closed, True)
        self.assertEqual(rep.closed, True) 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def xtest_instance(self):
            """Green IOLoop.instance returns the right object"""
            loop = self.IOLoop.instance()
            if not t5asyncio:
                assert isinstance(loop, self.IOLoop)
            base_loop = BaseIOLoop.instance()
            assert base_loop is loop 

# 需要導入模塊: from zmq.eventloop import ioloop [as 別名]
# 或者: from zmq.eventloop.ioloop import IOLoop [as 別名]
def launch_scheduler(in_addr, out_addr, mon_addr, not_addr, reg_addr, config=None,
                        logname='root', log_url=None, loglevel=logging.DEBUG,
                        identity=b'task', in_thread=False):

    ZMQStream = zmqstream.ZMQStream

    if config:
        # unwrap dict back into Config
        config = Config(config)

    if in_thread:
        # use instance() to get the same Context/Loop as our parent
        ctx = zmq.Context.instance()
        loop = ioloop.IOLoop.instance()
    else:
        # in a process, don't use instance()
        # for safety with multiprocessing
        ctx = zmq.Context()
        loop = ioloop.IOLoop()
    ins = ZMQStream(ctx.socket(zmq.ROUTER),loop)
    util.set_hwm(ins, 0)
    ins.setsockopt(zmq.IDENTITY, identity + b'_in')
    ins.bind(in_addr)

    outs = ZMQStream(ctx.socket(zmq.ROUTER),loop)
    util.set_hwm(outs, 0)
    outs.setsockopt(zmq.IDENTITY, identity + b'_out')
    outs.bind(out_addr)
    mons = zmqstream.ZMQStream(ctx.socket(zmq.PUB),loop)
    util.set_hwm(mons, 0)
    mons.connect(mon_addr)
    nots = zmqstream.ZMQStream(ctx.socket(zmq.SUB),loop)
    nots.setsockopt(zmq.SUBSCRIBE, b'')
    nots.connect(not_addr)
    
    querys = ZMQStream(ctx.socket(zmq.DEALER),loop)
    querys.connect(reg_addr)
    
    # setup logging.
    if in_thread:
        log = Application.instance().log
    else:
        if log_url:
            log = connect_logger(logname, ctx, log_url, root="scheduler", loglevel=loglevel)
        else:
            log = local_logger(logname, loglevel)

    scheduler = TaskScheduler(client_stream=ins, engine_stream=outs,
                            mon_stream=mons, notifier_stream=nots,
                            query_stream=querys,
                            loop=loop, log=log,
                            config=config)
    scheduler.start()
    if not in_thread:
        try:
            loop.start()
        except KeyboardInterrupt:
            scheduler.log.critical("Interrupted, exiting...")