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import py
import sys
# add a larger timeout for slow ARM machines
import platform
class AppTestEpoll(object):
spaceconfig = {
"usemodules": ["select", "_socket", "posix", "time"],
}
def setup_class(cls):
# NB. we should ideally py.test.skip() if running on an old linux
# where the kernel doesn't support epoll()
if not sys.platform.startswith('linux'):
py.test.skip("test requires linux (assumed >= 2.6)")
def setup_method(self, meth):
self.w_sockets = self.space.wrap([])
if platform.machine().startswith('arm'):
self.w_timeout = self.space.wrap(0.06)
if platform.machine().startswith('s390x'):
# s390x is not slow, but it seems there is one case when epoll
# modify method is called that takes longer on s390x
self.w_timeout = self.space.wrap(0.06)
else:
self.w_timeout = self.space.wrap(0.02)
def teardown_method(self, meth):
for socket in self.space.unpackiterable(self.w_sockets):
self.space.call_method(socket, "close")
def w_socket_pair(self):
import _socket as socket
server_socket = socket.socket()
server_socket.bind(('127.0.0.1', 0))
server_socket.listen(1)
client = socket.socket()
client.setblocking(False)
raises(socket.error,
client.connect, ('127.0.0.1', server_socket.getsockname()[1])
)
fd, addr = server_socket._accept()
server = socket.socket(server_socket.family, server_socket.type,
server_socket.proto, fileno=fd)
self.sockets.extend([server_socket, client, server])
return client, server
def test_create(self):
import select
ep = select.epoll(16)
assert ep.fileno() > 0
assert not ep.closed
ep.close()
assert ep.closed
raises(ValueError, ep.fileno)
def test_with(self):
import select
ep = select.epoll(16)
assert ep.fileno() > 0
with ep:
assert not ep.closed
assert ep.closed
raises(ValueError, ep.__enter__)
def test_badcreate(self):
import select
raises(TypeError, select.epoll, 1, 2, 3)
raises(TypeError, select.epoll, 'foo')
raises(TypeError, select.epoll, None)
raises(TypeError, select.epoll, ())
raises(TypeError, select.epoll, ['foo'])
raises(TypeError, select.epoll, {})
def test_add(self):
import select
client, server = self.socket_pair()
ep = select.epoll(2)
ep.register(server, select.EPOLLIN | select.EPOLLOUT)
ep.register(client, select.EPOLLIN | select.EPOLLOUT)
ep.close()
# adding by object w/ fileno works, too.
ep = select.epoll(2)
ep.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep.close()
ep = select.epoll(2)
# TypeError: argument must be an int, or have a fileno() method.
raises(TypeError, ep.register, object(), select.EPOLLIN | select.EPOLLOUT)
raises(TypeError, ep.register, None, select.EPOLLIN | select.EPOLLOUT)
# ValueError: file descriptor cannot be a negative integer (-1)
raises(ValueError, ep.register, -1, select.EPOLLIN | select.EPOLLOUT)
# IOError: [Errno 9] Bad file descriptor
raises(IOError, ep.register, 10000, select.EPOLLIN | select.EPOLLOUT)
# registering twice also raises an exception
ep.register(server, select.EPOLLIN | select.EPOLLOUT)
raises(IOError, ep.register, server, select.EPOLLIN | select.EPOLLOUT)
ep.close()
def test_fromfd(self):
import errno
import select
client, server = self.socket_pair()
ep1 = select.epoll(2)
ep2 = select.epoll.fromfd(ep1.fileno())
ep2.register(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
ep2.register(client.fileno(), select.EPOLLIN | select.EPOLLOUT)
events1 = ep1.poll(1, 4)
events2 = ep2.poll(0.9, 4)
assert len(events1) == 2
assert len(events2) == 2
ep1.close()
exc_info = raises(IOError, ep2.poll, 1, 4)
assert exc_info.value.args[0] == errno.EBADF
def test_control_and_wait(self):
import select
import time
client, server = self.socket_pair()
ep = select.epoll(16)
ep.register(server.fileno(),
select.EPOLLIN | select.EPOLLOUT | select.EPOLLET
)
ep.register(client.fileno(),
select.EPOLLIN | select.EPOLLOUT | select.EPOLLET
)
now = time.time()
events = ep.poll(1, 4)
then = time.time()
assert then - now < 0.1
events.sort()
expected = [
(client.fileno(), select.EPOLLOUT),
(server.fileno(), select.EPOLLOUT)
]
expected.sort()
assert events == expected
assert then - now < self.timeout
now = time.time()
events = ep.poll(timeout=2.1, maxevents=4)
then = time.time()
assert not events
client.send(b"Hello!")
server.send(b"world!!!")
now = time.time()
events = ep.poll(1, 4)
then = time.time()
assert then - now < self.timeout
events.sort()
expected = [
(client.fileno(), select.EPOLLIN | select.EPOLLOUT),
(server.fileno(), select.EPOLLIN | select.EPOLLOUT)
]
expected.sort()
assert events == expected
ep.unregister(client.fileno())
ep.modify(server.fileno(), select.EPOLLOUT)
now = time.time()
events = ep.poll(1, 4)
then = time.time()
assert then - now < self.timeout
expected = [(server.fileno(), select.EPOLLOUT)]
assert events == expected
def test_errors(self):
import select
raises(ValueError, select.epoll, -2)
raises(ValueError, select.epoll().register, -1, select.EPOLLIN)
def test_unregister_closed(self):
import select
import time
import errno
client, server = self.socket_pair()
fd = server.fileno()
ep = select.epoll(16)
ep.register(server)
now = time.time()
ep.poll(1, 4)
then = time.time()
assert then - now < self.timeout
server.close()
with raises(OSError) as cm:
ep.unregister(fd)
assert cm.value.errno == errno.EBADF
def test_close_twice(self):
import select
ep = select.epoll()
ep.close()
ep.close()
def test_non_inheritable(self):
import select, posix
ep = select.epoll()
assert posix.get_inheritable(ep.fileno()) == False
ep.close()
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