How do I abort a socket.recv() from another thread in Python

Question

I have a main thread that waits for connection. It spawns client threads that will echo the response from the client (telnet in this case). But say that I want to close down all

Answer 1

I don't know if it's possible to do what you're asking, but it shouldn't be necessary. Just don't read from the socket if there is nothing to read; use select.select to check the socket for data.

change:

data = self.clientSocket.recv(1024)
print "Got data: ", data
self.clientSocket.send(data)

to something more like this:

r, _, _ = select.select([self.clientSocket], [], [])
if r:
    data = self.clientSocket.recv(1024)
    print "Got data: ", data
    self.clientSocket.send(data)

EDIT: If you want to guard against the possibility that the socket has been closed, catch socket.error.

do_read = False
try:
    r, _, _ = select.select([self.clientSocket], [], [])
    do_read = bool(r)
except socket.error:
    pass
if do_read:
    data = self.clientSocket.recv(1024)
    print "Got data: ", data
    self.clientSocket.send(data)