You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
40 lines
952 B
40 lines
952 B
try:
|
|
import socket, select, errno
|
|
|
|
select.poll # Raises AttributeError for CPython implementations without poll()
|
|
except (ImportError, AttributeError):
|
|
print("SKIP")
|
|
raise SystemExit
|
|
|
|
|
|
poller = select.poll()
|
|
|
|
s = socket.socket()
|
|
|
|
poller.register(s)
|
|
# https://docs.python.org/3/library/select.html#select.poll.register
|
|
# "Registering a file descriptor that’s already registered is not an error,
|
|
# and has the same effect as registering the descriptor exactly once."
|
|
poller.register(s)
|
|
poller.register(s, select.POLLIN | select.POLLOUT)
|
|
|
|
# 2 args are mandatory unlike register()
|
|
try:
|
|
poller.modify(s)
|
|
except TypeError:
|
|
print("modify:TypeError")
|
|
|
|
poller.modify(s, select.POLLIN)
|
|
|
|
poller.unregister(s)
|
|
|
|
try:
|
|
poller.modify(s, select.POLLIN)
|
|
except OSError as e:
|
|
assert e.errno == errno.ENOENT
|
|
|
|
# poll after closing the socket, should return POLLNVAL
|
|
poller.register(s)
|
|
s.close()
|
|
p = poller.poll(0)
|
|
print(len(p), p[0][-1])
|
|
|