如何等待任何套接字有数据? [英] How to wait for any socket to have data?

问题描述

我正在实现一个套接字客户端，它可以同时打开多个套接字.任何套接字可能在不同的时间都有数据，我想在任何套接字有数据并且可读的情况下执行代码.

I'm implementing a socket-client which opens several sockets at the same time. Any socket may have data at a different time and I want to execute code when any socket has data and is readable.

我不确定如何实现此功能，我正在查看 select.select ，但似乎要等待所有套接字都可读.

I'm not sure how to implement this, I was looking at select.select but it seems to wait for all the sockets to be readable.

我想避免使用多重处理来处理套接字上的数据，我希望它是串行读取每个套接字的，但是在有可用数据时读取.

I'd like to avoid using multiprocessing to handle data on the sockets, I would like it to be serial in reading from each socket but read when there is data available.

如何等待任何套接字可读?

How do I wait for any socket to be readable?

# psudo code

sockets = [sock1, sock2, sock3]

while True:
  if len(sockets) == 0:
    break
  for sock in sockets:
    if sock.has_data():
      do_stuff(sock)
      sockets.remove(sock)
  sleep(0.1)

推荐答案

您可以使用select.select解决问题:

sockets = [sock1, sock2, sock3]
while sockets:
    rlist, _, _ = select.select(sockets, [], [])
    for sock in rlist:
        do_stuff(sock)
        sockets.remove(sock)

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