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ZeroMQ-Multiprocess
# request_reply_processes.py
import zmq
import time
import sys
from multiprocessing import Process
def server(port="5556"):
context = zmq.Context()
socket = context.socket(zmq.REP)
socket.bind("tcp://*:%s" % port)
print "Running server on port: ", port
# serves only 5 request and dies
for reqnum in range(5):
# Wait for next request from client
message = socket.recv()
print "Received request #%s: %s" % (reqnum, message)
socket.send("World from %s" % port)
def client(ports=["5556"]):
context = zmq.Context()
print "Connecting to server with ports %s" % ports
socket = context.socket(zmq.REQ)
for port in ports:
socket.connect ("tcp://localhost:%s" % port)
for request in range (20):
print "Sending request ", request,"..."
socket.send ("Hello")
message = socket.recv()
print "Received reply ", request, "[", message, "]"
time.sleep (1)
if __name__ == "__main__":
# Now we can run a few servers
server_ports = range(5550,5558,2)
for server_port in server_ports:
Process(target=server, args=(server_port,)).start()
# Now we can connect a client to all these servers
Process(target=client, args=(server_ports,)).start()# running it: (D:\anaconda) C:\Users\admin\Desktop\opt>python request_reply_processes.py # result: (D:\anaconda) C:\Users\admin\Desktop\opt>python request_reply_processes.py Running server on port: 5550 Running server on port: 5552 Running server on port: 5554 Connecting to server with ports [5550, 5552, 5554, 5556] Running server on port: 5556 Sending request 0 ... Received request #0: Hello Received reply 0 [ World from 5550 ] Sending request 1 ... Received request #0: Hello Received reply 1 [ World from 5552 ] Sending request 2 ... Received request #0: Hello Received reply 2 [ World from 5554 ] Sending request 3 ... Received request #0: Hello Received reply 3 [ World from 5556 ] Sending request 4 ... Received request #1: Hello Received reply 4 [ World from 5550 ] Sending request 5 ... Received request #1: Hello Received reply 5 [ World from 5552 ] Sending request 6 ... Received request #1: Hello Received reply 6 [ World from 5554 ] Sending request 7 ... Received request #1: Hello Received reply 7 [ World from 5556 ] Sending request 8 ... Received request #2: Hello Received reply 8 [ World from 5550 ] Sending request 9 ... Received request #2: Hello Received reply 9 [ World from 5552 ] Sending request 10 ... Received request #2: Hello Received reply 10 [ World from 5554 ] Sending request 11 ... Received request #2: Hello Received reply 11 [ World from 5556 ] Sending request 12 ... Received request #3: Hello Received reply 12 [ World from 5550 ] Sending request 13 ... Received request #3: Hello Received reply 13 [ World from 5552 ] Sending request 14 ... Received request #3: Hello Received reply 14 [ World from 5554 ] Sending request 15 ... Received request #3: Hello Received reply 15 [ World from 5556 ] Sending request 16 ... Received request #4: Hello Received reply 16 [ World from 5550 ] Sending request 17 ... Received request #4: Hello Received reply 17 [ World from 5552 ] Sending request 18 ... Received request #4: Hello Received reply 18 [ World from 5554 ] Sending request 19 ... Received request #4: Hello Received reply 19 [ World from 5556 ] (D:\anaconda) C:\Users\admin\Desktop\opt>
ZeroMQ-Multiprocess
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