Multiprocessing and sockets in Python

Question

I am trying to make multiprocessing and socket programming work together, but, I am stuck at this point. Problem is that, I am getting this error:

  File \"multi         


        

Answer 1

I'm not an expert so I can't give the real explanation but if you want to use queues, you need to reduce the handle and then recreate it:

in your main :

client, address = serversocket.accept()
client_handle = multiprocessing.reduction.reduce_handle(client.fileno())
socket_queue.put(client_handle)

and in your worker:

clientHandle = queue.get()
file_descriptor = multiprocessing.reduction.rebuild_handle(client_handle)
clientsocket = socket.fromfd(file_descriptor, socket.AF_INET, socket.SOCK_STREAM)

also

import multiprocessing.reduction

That will work with your original code. However, I am currently having problems with closing sockets in worker processes after they were created as I described.