python/tornado/ioloop/push-pull

hanyingzhong

已于 2022-04-16 15:47:44 修改

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分类专栏： ATE 文章标签： python

于 2022-04-16 15:45:50 首次发布

本文链接：https://blog.youkuaiyun.com/hanyingzhong/article/details/124214806

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该博客展示了如何使用ZeroMQ库结合Tornado的IOLoop进行消息的发送和接收。通过创建PULL和PUSH类型的套接字，实现了在两个不同线程中进行数据的实时传输。示例中，生产者不断发送字符串'aaaaaaaaaaaaaaa'，而消费者则接收并打印这些消息。

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import time
import zmq
from tornado import ioloop
from zmq.eventloop import zmqstream

# from threading import Thread

loop = ioloop.IOLoop.current()

LOG_URL = 'tcp://127.0.0.1:12345'
idx = 0


def getcommand(msg):
    global idx
    print("Received control command: %s" % msg, idx)
    idx += 1


def consume(url):
    ctx = zmq.Context.instance()
    s = ctx.socket(zmq.PULL)
    s.connect(url)
    stream_pull = zmqstream.ZMQStream(s)
    stream_pull.on_recv(getcommand)

    # while True:
    #     msg = s.recv()  # return bytes
    #     # msg = s.recv_multipart() # return List
    #     # msg = s.recv_multipart(copy=False)  # return zmq.Frame
    #     print(type(msg))
    #     print(msg)
    # s.close()


consume(LOG_URL)
loop.start()

while True:
    time.sleep(1)

import time

import zmq
from zmq.log.handlers import PUBHandler
import logging
from threading import Thread

LOG_URL = 'tcp://127.0.0.1:12345'


def produce(url):
    ctx = zmq.Context.instance()
    s = ctx.socket(zmq.PUSH)
    s.bind(url)
    idx = 0
    while True:
        ret = s.send_string("aaaaaaaaaaaaaaa")  # return bytes
        idx += 1
        # msg = s.recv_multipart() # return List
        # msg = s.recv_multipart(copy=False)  # return zmq.Frame
        print(idx)
        print(ret)
    s.close()


producer = Thread(target=produce, args=(LOG_URL,))
producer.start()

while True:
    time.sleep(1)