micropython/tests/extmod/uselect_poll_udp.py
Damien George 00267aae0b extmod/modlwip: Fix polling of UDP socket so it doesn't return HUP.
STATE_NEW will return HUP when polled so put active UDP sockets into a new
state which is different to STATE_NEW.

Fixes issue #5758.
2020-03-18 10:49:27 +11:00

29 lines
745 B
Python

# test select.poll on UDP sockets
try:
import usocket as socket, uselect as select
except ImportError:
try:
import socket, select
except ImportError:
print("SKIP")
raise SystemExit
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
s.bind(socket.getaddrinfo('127.0.0.1', 8000)[0][-1])
poll = select.poll()
# UDP socket should not be readable
poll.register(s, select.POLLIN)
print(len(poll.poll(0)))
# UDP socket should be writable
poll.modify(s, select.POLLOUT)
print(poll.poll(0)[0][1] == select.POLLOUT)
# same test for select.select, but just skip it if the function isn't available
if hasattr(select, "select"):
r, w, e = select.select([s], [], [], 0)
assert not r and not w and not e