ZeroMQ

zmq 三种模式

第一种：
   Request-Reply(半双工)模式：
   #半双工，多客户端多客户端，一问一答模式，多客户端可以通过中间设置代理
   #
   #server端
   import zmq
   content = zmq.Context()
   sock = content.socket(zmq.REP)
   sock.bind("tcp://127.0.0.1:8017")

while True:
receive = sock.recv()

       print receive
       if receive == str(1):
           sock.send("ok")
       else:
           sock.send("success")
   #client端
   #半双工，一问一答，通信协议server REP(reply),client REQ(request)
   import zmq
   content = zmq.Context()
   sock = content.socket(zmq.REQ)
   sock.connect("tcp://127.0.0.1:8017")

   while True:
       sock.send(raw_input(">>"))
       print sock.recv()

第二种：
   Publish-Subscribe(广播订阅)模式:
   #server端
   #广播，服务端发送，客户端被动接收，通信协议server PUB,client SUB,客户端可以设置过滤条件来是否接收广播信息
   import zmq
   content = zmq.Context()
   sock = content.socket(zmq.PUB)
   sock.bind("tcp://127.0.0.1:8017")

   while True:
       sock.send(raw_input(">>"))
   #client端
   #广播，被动接受，setsockopt 设置过滤，zmq.SUBSCRIBE 过滤主题也就是内容的头部为test的才接收
   import zmq
   content = zmq.Context()
   sock = content.socket(zmq.SUB)
   sock.connect("tcp://127.0.0.1:8017")
   sock.setsockopt(zmq.SUBSCRIBE,"test")
   while True:
       print sock.recv()

第三种：
   Parallel Pipeline(管道)模式
   #server push，work pull，然后在push
   #client pull
   #server端
   import time
   import zmq
   context = zmq.Context()
   socket = context.socket(zmq.PUSH)

socket.bind('tcp://*:5557')

   while True:
       data = raw_input('input your data:')
       socket.send(data)

   #work端
   import zmq
   context = zmq.Context()

recive = context.socket(zmq.PULL)
recive.connect('tcp://127.0.0.1:5557')

sender = context.socket(zmq.PUSH)
sender.connect('tcp://127.0.0.1:5558')

   while True:
       data = recive.recv()
       sender.send(data)

   #client端
   import zmq
   context = zmq.Context()

socket = context.socket(zmq.PULL)
socket.bind('tcp://*:5558')

   while True:
       data = socket.recv()
       print data

一二混搭：
   #server端混搭时一定要记得第一种模式的一问一答模式(客户端发出消息，服务端接收并回应，然后客户端在接收消息)
   import zmq
   content = zmq.Context()
   sock = content.socket(zmq.PUB)
   sock.bind("tcp://127.0.0.1:8018")

receive = content.socket(zmq.REP)
receive.bind("tcp://127.0.0.1:8019")

   while True:
       send = raw_input(">>")
       sock.send(send)
       data = receive.recv()
       print eval(data)
       receive.send("ok")

   #client端
   import zmq
   import json
   content = zmq.Context()
   sock = content.socket(zmq.SUB)
   sock.connect("tcp://127.0.0.1:8018")
   sock.setsockopt(zmq.SUBSCRIBE,"")

sender = content.socket(zmq.REQ)
sender.connect("tcp://127.0.0.1:8019")

   while True:
       receive = sock.recv()
       print receive
       if receive=="test.ping":
           sender_content = "id:\n true"
       else:
           sender_content = "id:\n false"
       sender.send(json.dumps(sender_content))
       print sender.recv()

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