Python threading.enumerate方法代碼示例

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def start(self):
        if self.finalized:
            self.bus.log('Already deamonized.')

        # forking has issues with threads:
        # http://www.opengroup.org/onlinepubs/000095399/functions/fork.html
        # "The general problem with making fork() work in a multi-threaded
        #  world is what to do with all of the threads..."
        # So we check for active threads:
        if threading.activeCount() != 1:
            self.bus.log('There are %r active threads. '
                         'Daemonizing now may cause strange failures.' %
                         threading.enumerate(), level=30)

        self.daemonize(self.stdin, self.stdout, self.stderr, self.bus.log)

        self.finalized = True 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def test_builtin_channels(bus, listener):
    """Test that built-in channels trigger corresponding listeners."""
    expected = []

    for channel in bus.listeners:
        for index, priority in enumerate([100, 50, 0, 51]):
            bus.subscribe(
                channel,
                listener.get_listener(channel, index),
                priority,
            )

    for channel in bus.listeners:
        bus.publish(channel)
        expected.extend([msg % (i, channel, None) for i in (2, 1, 3, 0)])
        bus.publish(channel, arg=79347)
        expected.extend([msg % (i, channel, 79347) for i in (2, 1, 3, 0)])

    assert listener.responses == expected 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def test_custom_channels(bus, listener):
    """Test that custom pub-sub channels work as built-in ones."""
    expected = []

    custom_listeners = ('hugh', 'louis', 'dewey')
    for channel in custom_listeners:
        for index, priority in enumerate([None, 10, 60, 40]):
            bus.subscribe(
                channel,
                listener.get_listener(channel, index),
                priority,
            )

    for channel in custom_listeners:
        bus.publish(channel, 'ah so')
        expected.extend(msg % (i, channel, 'ah so') for i in (1, 3, 0, 2))
        bus.publish(channel)
        expected.extend(msg % (i, channel, None) for i in (1, 3, 0, 2))

    assert listener.responses == expected 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def run(self):
        window_name = "Olympe Streaming Example"
        cv2.namedWindow(window_name, cv2.WINDOW_NORMAL)
        main_thread = next(
            filter(lambda t: t.name == "MainThread", threading.enumerate())
        )
        while main_thread.is_alive():
            with self.flush_queue_lock:
                try:
                    yuv_frame = self.frame_queue.get(timeout=0.01)
                except queue.Empty:
                    continue
                try:
                    self.show_yuv_frame(window_name, yuv_frame)
                except Exception:
                    # We have to continue popping frame from the queue even if
                    # we fail to show one frame
                    traceback.print_exc()
                finally:
                    # Don't forget to unref the yuv frame. We don't want to
                    # starve the video buffer pool
                    yuv_frame.unref()
        cv2.destroyWindow(window_name) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def main():
    password = getpass()
    start_time = datetime.now()

    hostnames = [
        'arista1.twb-tech.com',
        'arista2.twb-tech.com',
        'arista3.twb-tech.com',
        'arista4.twb-tech.com',
    ]

    print()
    print(">>>>>")
    for host in hostnames:
        net_device = create_device_dict(host, password)
        my_thread = threading.Thread(target=scp_file, args=(net_device,))
        my_thread.start()

    main_thread = threading.currentThread()
    for some_thread in threading.enumerate():
        if some_thread != main_thread:
            some_thread.join()
    print(">>>>>")

    print("\nElapsed time: " + str(datetime.now() - start_time)) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def main():
    '''
    Use threads and Netmiko to connect to each of the devices in the database. Execute
    'show version' on each device. Record the amount of time required to do this.
    '''
    start_time = datetime.now()
    devices = NetworkDevice.objects.all()

    for a_device in devices:
        my_thread = threading.Thread(target=show_version, args=(a_device,))
        my_thread.start()

    main_thread = threading.currentThread()
    for some_thread in threading.enumerate():
        if some_thread != main_thread:
            print(some_thread)
            some_thread.join()

    print("\nElapsed time: " + str(datetime.now() - start_time)) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def _threads(self):
        threads = list(threading.enumerate())
        d = {
            "num_threads": len(threads),
            "threads": [
                {"name": t.name, "ident": t.ident, "daemon": t.daemon} for t in threads
            ],
        }
        # Only available in Python 3.7+
        if hasattr(asyncio, "all_tasks"):
            tasks = asyncio.all_tasks()
            d.update(
                {
                    "num_tasks": len(tasks),
                    "tasks": [_cleaner_task_str(t) for t in tasks],
                }
            )
        return d 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def worker_int(worker):
    worker.log.info("worker received INT or QUIT signal")

    # get traceback info
    import threading
    import sys
    import traceback

    id2name = {th.ident: th.name for th in threading.enumerate()}
    code = []
    for threadId, stack in list(sys._current_frames().items()):
        code.append("\n# Thread: %s(%d)" % (id2name.get(threadId, ""), threadId))
        for filename, lineno, name, line in traceback.extract_stack(stack):
            code.append('File: "%s", line %d, in %s' % (filename, lineno, name))
            if line:
                code.append("  %s" % (line.strip()))
    worker.log.debug("\n".join(code)) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def on_timeout():
    logger.debug("cli timeout ")
    # Timeout should have been handled by the orchestrator, if the cli timeout
    # has been reached, something is probably wrong : dump threads.
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])
        print()

    if orchestrator is None:
        logger.debug("cli timeout with no orchestrator ?")
        return
    global timeout_stopped
    timeout_stopped = True

    orchestrator.stop_agents(20)
    orchestrator.stop()
    _results("TIMEOUT")
    sys.exit(0) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def on_timeout():
    logger.debug("cli timeout ")
    # Timeout should have been handled by the orchestrator, if the cli timeout
    # has been reached, something is probably wrong : dump threads.
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])
        print()

    if orchestrator is None:
        logger.debug("cli timeout with no orchestrator ?")
        return
    global timeout_stopped
    timeout_stopped = True
    # Stopping agents can be rather long, we need a big timeout !
    logger.debug("stop agent on cli timeout ")
    orchestrator.stop_agents(20)
    logger.debug("stop orchestrator on cli timeout ")
    orchestrator.stop()
    _results("TIMEOUT")
    # sys.exit(0)
    os._exit(2) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def on_timeout():
    if orchestrator is None:
        return
    # Timeout should have been handled by the orchestrator, if the cli timeout
    # has been reached, something is probably wrong : dump threads.
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])
        print()
    if orchestrator is None:
        logger.debug("cli timeout with no orchestrator ?")
        return
    global timeout_stopped
    timeout_stopped = True

    # Stopping agents can be rather long, we need a big timeout !
    orchestrator.stop_agents(20)
    orchestrator.stop()
    _results("TIMEOUT")
    sys.exit(0) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def on_timeout():
    global result, output_file
    global start_t
    duration = time.time() - start_t

    print("TIMEOUT when distributing")
    logger.info("cli timeout when distributing")
    for th in threading.enumerate():
        print(th)
        traceback.print_stack(sys._current_frames()[th.ident])

    result["status"] =  "TIMEOUT"
    result["inputs"]["duration"] = duration

    if output_file is not None:
        with open(output_file, encoding="utf-8", mode="w") as fo:
            fo.write(yaml.dump(result))
    print(yaml.dump(result))

    #os._exit(0)
    sys.exit(0) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def thread_stacktraces():
  """
  Provides a dump of the stacktrace information for all active threads.

  :returns: **dict** that maps thread names to their stacktrace
  """

  stacktraces = {}

  for thread in threading.enumerate():
    frame = sys._current_frames().get(thread.ident, None)

    if frame:
      stacktraces[thread.name] = ''.join(traceback.format_stack(frame))
    else:
      stacktraces[thread.name] = 'No traceback available'

  return stacktraces 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def test_enumerate_after_join(self):
        # Try hard to trigger #1703448: a thread is still returned in
        # threading.enumerate() after it has been join()ed.
        enum = threading.enumerate
        old_interval = sys.getcheckinterval()
        try:
            for i in xrange(1, 100):
                # Try a couple times at each thread-switching interval
                # to get more interleavings.
                sys.setcheckinterval(i // 5)
                t = threading.Thread(target=lambda: None)
                t.start()
                t.join()
                l = enum()
                self.assertNotIn(t, l,
                    "#1703448 triggered after %d trials: %s" % (i, l))
        finally:
            sys.setcheckinterval(old_interval) 

# 需要導入模塊: import threading [as 別名]
# 或者: from threading import enumerate [as 別名]
def test_highlevel():
    """Test highlevel mailbox API"""
    for lazy in [False, True]:
        print(f"Lazy mode: {lazy}")

        mb = strax.Mailbox(lazy=lazy)
        mb.add_sender(iter(list(range(10))))

        def test_reader(source):
            test_reader.got = r = []
            for s in source:
                r.append(s)

        mb.add_reader(test_reader)
        mb.start()
        time.sleep(SHORT_TIMEOUT)
        assert hasattr(test_reader, 'got')
        assert test_reader.got == list(range(10))
        mb.cleanup()
        assert len(threading.enumerate()) == 1, "Not all threads died"