Python网络编程
Communicating Simply Between Interpreters
Problem
在不同机器上运行的Python解释器实例之间使用消息来交换数据
Solution
可以使用multiprocessing.connection模块来解决
以下是一个简单的echo服务器
from multiprocessing.connection import Listener
import traceback
def echo_client(conn):
try:
while True:
msg=conn.recv()
conn.send(msg)
except EOFError:
print('Connection closed')
def echo_server(address,authkey):
serv=Listener(address,authkey=authkey)
while True:
try:
client=serv.accept()
echo_client(client)
except Exception:
traceback.print_exc()
echo_server(('',25000),authkey=b'peekaboo')
然后执行这个程序
In [1]: from multiprocessing.connection import Client
In [2]: c=Client(('localhost',25000),authkey=b'peekaboo')
In [3]: c.send('hello')
In [4]: c.recv()
Out[4]: 'hello'
In [5]: c.send(42)
In [6]: c.recv()
Out[6]: 42
In [7]: c.send([1,2,3,4,5])
In [8]: c.recv()
Out[8]: [1, 2, 3, 4, 5]
不像低级的socket，通过这样发送的消息保持完整，没有受到损坏。
Implementing Remote Proceduer Calls
Problem
想要在一个消息队列层之上实现简单的远程过程调用RPC
Solution
RPC可以很容易的通过使用picke模块来实现
http://chimera.labs.oreilly.com/books/1230000000393/ch11.html