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强化DP光电灯
原标题:Strengthen python UDP server

I m astartner in python (2.6/2.7), who have been made in the deep end to establish a web services to an existing python app.

I ve got a UDP server up and running which works just great but I m asking for help in making it slightly more bullet proof.

这里是我撰写的基数,通常的标准锅炉板:

import sys
import socket
from threading import Thread

def handleInput():
         sock = socket.socket( socket.AF_INET, socket.SOCK_DGRAM )
         sock.bind( ("127.0.0.1",5005) )
         # socket always binded?
         while True:
                 data, addr = sock.recvfrom(512)
                 # is  data  usable?

t=Thread(target=handleInput)
t.daemon=True
t.start()
# can thread die?

首先,我的理解是,从某种意义上讲,这份摘要总是可以提供,但不必听,因此不存在失败,你必须重新联系。 这是否正确?

第二,从数据中回收的问题。 如果数据:?

第三,也是最后一点。 read子炸弹能否爆炸? 如果是怎样才能重新启动?

任何其他方面都会受到欢迎。

(说明:我不能使用外部图书馆,例如前线图书馆等)

问题回答

回答您的问题:

  1. UDP sockets are connectionless, and as such "always available". Please also be aware that the UDP message length is limited to 65535 bytes IIRC.
  2. Data is just a string, and its validity will depend on the used protocol. Your if data: ... will work as a test for receiving something, but the recvfrom() call will block anyway until it receives something so this seems superfluous.
  3. I have no knowledge about python thread reliability in general.

我还将核对<代码>。 SocketServer model and the associated UDPServerclass - this may be made for better implementation. The Server is part of python s standard Library.





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