zmq的三中模式

最新推荐文章于 2025-09-28 21:44:31 发布

原创最新推荐文章于 2025-09-28 21:44:31 发布 · 645 阅读

0 ·

CC 4.0 BY-SA版权

zmq 专栏收录该内容

2 篇文章

订阅专栏

本文介绍了ZMQ的三种基本模式：请求回复模式，其中client发起请求，server进行响应；订阅模式，client通过特定前缀订阅消息，server广播；并行处理模式，server发送消息，client端启动多个进程或线程并行接收和处理。

zmq的三中模式

1、请求回复

server端

 1 import time
 2 import zmq
 3 import Queue
 4 Queue()
 5 context=zmq.Context()
 6 socket=context.socket(zmq.REP)
 7 socket.bind("tcp://*:5555")
 8 
 9 while True:
10     message=socket.recv_string()
11     socket.send(b"word")
12     print message
13     time.sleep(10)

client端

 1 import zmq
 2 import time
 3 
 4 context = zmq.Context()
 5 
 6 #  Socket to talk to server
 7 print("Connecting to hello world server…")
 8 socket = context.socket(zmq.REQ)
 9 socket.connect("tcp://localhost:5555")
10 
11 #  Do 10 requests, waiting each time for a response
12 s_time = time.time()
13 for request in range(10):
14     print("Sending request %s …" % request)
15     socket.send(b"Hello")
16 
17     #  Get the reply.
18     message = socket.recv()
19     print("Received reply %s [ %s ]" % (request, message))
20 print time.time() - s_time

2、订阅模式 client端通过指定最前面的字符

server端

 1 import zmq
 2 from random import randrange
 3 
 4 context = zmq.Context()
 5 socket = context.socket(zmq.PUB)
 6 socket.bind("tcp://*:5556")
 7 
 8 while True:
 9     zipcode = randrange(1, 100000)
10     temperature = randrange(-80, 135)
11     relhumidity = randrange(10, 60)
12     print zipcode
13 
14     socket.send_string("%i %i %i" % (zipcode, temperature, relhumidity))

client端

 1 import sys
 2 import zmq
 3 
 4 #  Socket to talk to server
 5 context = zmq.Context()
 6 socket = context.socket(zmq.SUB)
 7 
 8 print("Collecting updates from weather server…")
 9 socket.connect("tcp://localhost:5556")
10 
11 # Subscribe to zipcode, default is NYC, 10001
12 zip_filter = sys.argv[1] if len(sys.argv) > 1 else "10001"
13 
14 # Python 2 - ascii bytes to unicode str
15 if isinstance(zip_filter, bytes):
16     zip_filter = zip_filter.decode('ascii')
17 socket.setsockopt_string(zmq.SUBSCRIBE, zip_filter)
18 
19 # Process 5 updates
20 total_temp = 0
21 for update_nbr in range(5):
22     string = socket.recv_string()
23     zipcode, temperature, relhumidity = string.split()
24     total_temp += int(temperature)
25     print zipcode
26 
27 print("Average temperature for zipcode '%s' was %dF" % (
28     zip_filter, total_temp / (update_nbr + 1))
29       )

3、并行模式，server发送，client端启动多个接收，并行处理

server

 1 import zmq
 2 import time
 3 
 4 context = zmq.Context()
 5 socket = context.socket(zmq.PUSH)
 6 socket.bind("tcp://*:5557")
 7 num = 0
 8 
 9 while True:
10     num += 1
11     socket.send("测试消息" + str(num))
12     print "测试消息" + str(num)
13     # print "已发送"
14     time.sleep(1)

clinet

 1 import zmq, time
 2 
 3 context = zmq.Context()
 4 
 5 recive = context.socket(zmq.PULL)
 6 recive.connect('tcp://127.0.0.1:5557')
 7 
 8 
 9 def test1():
10     while True:
11         data = recive.recv()
12         print "正在转发..."
13         print data
14         time.sleep(5)
15 test1()