2013-09-04 14:02:49 -03:00
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import errno
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2013-12-07 19:57:01 -04:00
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import os
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2013-09-04 14:02:49 -03:00
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import random
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import selectors
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import signal
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import socket
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2014-12-16 20:07:56 -04:00
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import sys
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2013-09-04 14:02:49 -03:00
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from test import support
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2020-08-10 18:24:02 -03:00
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from test.support import os_helper
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2020-04-25 04:06:29 -03:00
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from test.support import socket_helper
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2014-01-25 10:04:22 -04:00
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from time import sleep
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2013-09-04 14:02:49 -03:00
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import unittest
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2013-11-07 12:39:28 -04:00
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import unittest.mock
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2016-09-15 20:30:42 -03:00
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import tempfile
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2014-09-02 18:18:25 -03:00
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from time import monotonic as time
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2013-09-04 14:02:49 -03:00
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try:
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import resource
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except ImportError:
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resource = None
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2022-05-16 11:02:37 -03:00
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if support.is_emscripten or support.is_wasi:
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raise unittest.SkipTest("Cannot create socketpair on Emscripten/WASI.")
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2022-03-22 07:04:36 -03:00
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2013-09-04 14:02:49 -03:00
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if hasattr(socket, 'socketpair'):
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socketpair = socket.socketpair
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else:
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def socketpair(family=socket.AF_INET, type=socket.SOCK_STREAM, proto=0):
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with socket.socket(family, type, proto) as l:
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2020-04-25 04:06:29 -03:00
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l.bind((socket_helper.HOST, 0))
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2014-07-23 15:28:13 -03:00
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l.listen()
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2013-09-04 14:02:49 -03:00
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c = socket.socket(family, type, proto)
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try:
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c.connect(l.getsockname())
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caddr = c.getsockname()
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while True:
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a, addr = l.accept()
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# check that we've got the correct client
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if addr == caddr:
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return c, a
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a.close()
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except OSError:
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c.close()
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raise
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def find_ready_matching(ready, flag):
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match = []
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for key, events in ready:
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if events & flag:
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match.append(key.fileobj)
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return match
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2021-09-19 09:27:33 -03:00
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class BaseSelectorTestCase:
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2013-09-04 14:02:49 -03:00
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2013-12-07 19:57:01 -04:00
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def make_socketpair(self):
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rd, wr = socketpair()
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self.addCleanup(rd.close)
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self.addCleanup(wr.close)
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return rd, wr
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2013-09-04 14:02:49 -03:00
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def test_register(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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key = s.register(rd, selectors.EVENT_READ, "data")
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self.assertIsInstance(key, selectors.SelectorKey)
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self.assertEqual(key.fileobj, rd)
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self.assertEqual(key.fd, rd.fileno())
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self.assertEqual(key.events, selectors.EVENT_READ)
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self.assertEqual(key.data, "data")
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# register an unknown event
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self.assertRaises(ValueError, s.register, 0, 999999)
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# register an invalid FD
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self.assertRaises(ValueError, s.register, -10, selectors.EVENT_READ)
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# register twice
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self.assertRaises(KeyError, s.register, rd, selectors.EVENT_READ)
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# register the same FD, but with a different object
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self.assertRaises(KeyError, s.register, rd.fileno(),
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selectors.EVENT_READ)
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def test_unregister(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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s.register(rd, selectors.EVENT_READ)
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s.unregister(rd)
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# unregister an unknown file obj
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self.assertRaises(KeyError, s.unregister, 999999)
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# unregister twice
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self.assertRaises(KeyError, s.unregister, rd)
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2013-12-07 19:57:01 -04:00
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def test_unregister_after_fd_close(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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rd, wr = self.make_socketpair()
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r, w = rd.fileno(), wr.fileno()
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s.register(r, selectors.EVENT_READ)
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s.register(w, selectors.EVENT_WRITE)
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rd.close()
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wr.close()
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s.unregister(r)
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s.unregister(w)
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2013-12-08 20:59:07 -04:00
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@unittest.skipUnless(os.name == 'posix', "requires posix")
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2013-12-07 19:57:01 -04:00
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def test_unregister_after_fd_close_and_reuse(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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rd, wr = self.make_socketpair()
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r, w = rd.fileno(), wr.fileno()
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s.register(r, selectors.EVENT_READ)
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s.register(w, selectors.EVENT_WRITE)
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rd2, wr2 = self.make_socketpair()
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rd.close()
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wr.close()
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os.dup2(rd2.fileno(), r)
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os.dup2(wr2.fileno(), w)
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self.addCleanup(os.close, r)
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self.addCleanup(os.close, w)
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s.unregister(r)
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s.unregister(w)
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def test_unregister_after_socket_close(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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rd, wr = self.make_socketpair()
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s.register(rd, selectors.EVENT_READ)
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s.register(wr, selectors.EVENT_WRITE)
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rd.close()
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wr.close()
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s.unregister(rd)
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s.unregister(wr)
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2013-09-04 14:02:49 -03:00
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def test_modify(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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key = s.register(rd, selectors.EVENT_READ)
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# modify events
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key2 = s.modify(rd, selectors.EVENT_WRITE)
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self.assertNotEqual(key.events, key2.events)
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self.assertEqual(key2, s.get_key(rd))
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s.unregister(rd)
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# modify data
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d1 = object()
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d2 = object()
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key = s.register(rd, selectors.EVENT_READ, d1)
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key2 = s.modify(rd, selectors.EVENT_READ, d2)
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self.assertEqual(key.events, key2.events)
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self.assertNotEqual(key.data, key2.data)
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self.assertEqual(key2, s.get_key(rd))
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self.assertEqual(key2.data, d2)
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# modify unknown file obj
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self.assertRaises(KeyError, s.modify, 999999, selectors.EVENT_READ)
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2013-11-07 12:39:28 -04:00
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# modify use a shortcut
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d3 = object()
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s.register = unittest.mock.Mock()
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s.unregister = unittest.mock.Mock()
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s.modify(rd, selectors.EVENT_READ, d3)
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self.assertFalse(s.register.called)
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self.assertFalse(s.unregister.called)
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2017-06-09 17:20:41 -03:00
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def test_modify_unregister(self):
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# Make sure the fd is unregister()ed in case of error on
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# modify(): http://bugs.python.org/issue30014
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if self.SELECTOR.__name__ == 'EpollSelector':
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patch = unittest.mock.patch(
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'selectors.EpollSelector._selector_cls')
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elif self.SELECTOR.__name__ == 'PollSelector':
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patch = unittest.mock.patch(
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'selectors.PollSelector._selector_cls')
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elif self.SELECTOR.__name__ == 'DevpollSelector':
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patch = unittest.mock.patch(
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'selectors.DevpollSelector._selector_cls')
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else:
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raise self.skipTest("")
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with patch as m:
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m.return_value.modify = unittest.mock.Mock(
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side_effect=ZeroDivisionError)
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s = self.SELECTOR()
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self.addCleanup(s.close)
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rd, wr = self.make_socketpair()
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s.register(rd, selectors.EVENT_READ)
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self.assertEqual(len(s._map), 1)
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with self.assertRaises(ZeroDivisionError):
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s.modify(rd, selectors.EVENT_WRITE)
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self.assertEqual(len(s._map), 0)
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2013-09-04 14:02:49 -03:00
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def test_close(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2015-01-13 04:58:33 -04:00
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mapping = s.get_map()
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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s.register(rd, selectors.EVENT_READ)
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s.register(wr, selectors.EVENT_WRITE)
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s.close()
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2015-01-13 05:00:55 -04:00
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self.assertRaises(RuntimeError, s.get_key, rd)
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self.assertRaises(RuntimeError, s.get_key, wr)
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2015-01-13 04:58:33 -04:00
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self.assertRaises(KeyError, mapping.__getitem__, rd)
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self.assertRaises(KeyError, mapping.__getitem__, wr)
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2023-07-13 16:18:53 -03:00
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self.assertEqual(mapping.get(rd), None)
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self.assertEqual(mapping.get(wr), None)
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2013-09-04 14:02:49 -03:00
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def test_get_key(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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key = s.register(rd, selectors.EVENT_READ, "data")
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self.assertEqual(key, s.get_key(rd))
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# unknown file obj
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self.assertRaises(KeyError, s.get_key, 999999)
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2013-10-30 16:31:04 -03:00
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def test_get_map(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2023-07-13 16:18:53 -03:00
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sentinel = object()
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2013-10-30 16:31:04 -03:00
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keys = s.get_map()
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self.assertFalse(keys)
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self.assertEqual(len(keys), 0)
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self.assertEqual(list(keys), [])
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2023-07-13 16:18:53 -03:00
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self.assertEqual(keys.get(rd), None)
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self.assertEqual(keys.get(rd, sentinel), sentinel)
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2013-10-30 16:31:04 -03:00
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key = s.register(rd, selectors.EVENT_READ, "data")
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self.assertIn(rd, keys)
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2023-07-13 16:18:53 -03:00
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self.assertEqual(key, keys.get(rd))
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2013-10-30 16:31:04 -03:00
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self.assertEqual(key, keys[rd])
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self.assertEqual(len(keys), 1)
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self.assertEqual(list(keys), [rd.fileno()])
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self.assertEqual(list(keys.values()), [key])
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# unknown file obj
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with self.assertRaises(KeyError):
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keys[999999]
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# Read-only mapping
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with self.assertRaises(TypeError):
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del keys[rd]
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2013-09-04 14:02:49 -03:00
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def test_select(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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s.register(rd, selectors.EVENT_READ)
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wr_key = s.register(wr, selectors.EVENT_WRITE)
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result = s.select()
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for key, events in result:
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self.assertTrue(isinstance(key, selectors.SelectorKey))
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self.assertTrue(events)
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self.assertFalse(events & ~(selectors.EVENT_READ |
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selectors.EVENT_WRITE))
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self.assertEqual([(wr_key, selectors.EVENT_WRITE)], result)
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2023-09-28 14:25:10 -03:00
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def test_select_read_write(self):
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# gh-110038: when a file descriptor is registered for both read and
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# write, the two events must be seen on a single call to select().
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s = self.SELECTOR()
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self.addCleanup(s.close)
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sock1, sock2 = self.make_socketpair()
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sock2.send(b"foo")
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my_key = s.register(sock1, selectors.EVENT_READ | selectors.EVENT_WRITE)
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seen_read, seen_write = False, False
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result = s.select()
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# We get the read and write either in the same result entry or in two
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# distinct entries with the same key.
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self.assertLessEqual(len(result), 2)
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for key, events in result:
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self.assertTrue(isinstance(key, selectors.SelectorKey))
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self.assertEqual(key, my_key)
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self.assertFalse(events & ~(selectors.EVENT_READ |
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selectors.EVENT_WRITE))
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if events & selectors.EVENT_READ:
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self.assertFalse(seen_read)
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seen_read = True
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if events & selectors.EVENT_WRITE:
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self.assertFalse(seen_write)
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seen_write = True
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self.assertTrue(seen_read)
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self.assertTrue(seen_write)
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2013-09-04 14:02:49 -03:00
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def test_context_manager(self):
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s = self.SELECTOR()
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self.addCleanup(s.close)
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2013-12-07 19:57:01 -04:00
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rd, wr = self.make_socketpair()
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2013-09-04 14:02:49 -03:00
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with s as sel:
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sel.register(rd, selectors.EVENT_READ)
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sel.register(wr, selectors.EVENT_WRITE)
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2015-01-13 05:00:55 -04:00
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self.assertRaises(RuntimeError, s.get_key, rd)
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self.assertRaises(RuntimeError, s.get_key, wr)
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2013-09-04 14:02:49 -03:00
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def test_fileno(self):
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s = self.SELECTOR()
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|
self.addCleanup(s.close)
|
|
|
|
|
|
|
|
if hasattr(s, 'fileno'):
|
|
|
|
fd = s.fileno()
|
|
|
|
self.assertTrue(isinstance(fd, int))
|
|
|
|
self.assertGreaterEqual(fd, 0)
|
|
|
|
|
|
|
|
def test_selector(self):
|
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
|
|
|
|
NUM_SOCKETS = 12
|
|
|
|
MSG = b" This is a test."
|
|
|
|
MSG_LEN = len(MSG)
|
|
|
|
readers = []
|
|
|
|
writers = []
|
|
|
|
r2w = {}
|
|
|
|
w2r = {}
|
|
|
|
|
|
|
|
for i in range(NUM_SOCKETS):
|
2013-12-07 19:57:01 -04:00
|
|
|
rd, wr = self.make_socketpair()
|
2013-09-04 14:02:49 -03:00
|
|
|
s.register(rd, selectors.EVENT_READ)
|
|
|
|
s.register(wr, selectors.EVENT_WRITE)
|
|
|
|
readers.append(rd)
|
|
|
|
writers.append(wr)
|
|
|
|
r2w[rd] = wr
|
|
|
|
w2r[wr] = rd
|
|
|
|
|
|
|
|
bufs = []
|
|
|
|
|
|
|
|
while writers:
|
|
|
|
ready = s.select()
|
|
|
|
ready_writers = find_ready_matching(ready, selectors.EVENT_WRITE)
|
|
|
|
if not ready_writers:
|
|
|
|
self.fail("no sockets ready for writing")
|
|
|
|
wr = random.choice(ready_writers)
|
|
|
|
wr.send(MSG)
|
|
|
|
|
|
|
|
for i in range(10):
|
|
|
|
ready = s.select()
|
|
|
|
ready_readers = find_ready_matching(ready,
|
|
|
|
selectors.EVENT_READ)
|
|
|
|
if ready_readers:
|
|
|
|
break
|
|
|
|
# there might be a delay between the write to the write end and
|
|
|
|
# the read end is reported ready
|
|
|
|
sleep(0.1)
|
|
|
|
else:
|
|
|
|
self.fail("no sockets ready for reading")
|
|
|
|
self.assertEqual([w2r[wr]], ready_readers)
|
|
|
|
rd = ready_readers[0]
|
|
|
|
buf = rd.recv(MSG_LEN)
|
|
|
|
self.assertEqual(len(buf), MSG_LEN)
|
|
|
|
bufs.append(buf)
|
|
|
|
s.unregister(r2w[rd])
|
|
|
|
s.unregister(rd)
|
|
|
|
writers.remove(r2w[rd])
|
|
|
|
|
|
|
|
self.assertEqual(bufs, [MSG] * NUM_SOCKETS)
|
|
|
|
|
2014-12-16 20:07:56 -04:00
|
|
|
@unittest.skipIf(sys.platform == 'win32',
|
|
|
|
'select.select() cannot be used with empty fd sets')
|
2014-12-08 13:21:58 -04:00
|
|
|
def test_empty_select(self):
|
2015-01-22 04:07:36 -04:00
|
|
|
# Issue #23009: Make sure EpollSelector.select() works when no FD is
|
|
|
|
# registered.
|
2014-12-08 13:21:58 -04:00
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
self.assertEqual(s.select(timeout=0), [])
|
|
|
|
|
2013-09-04 14:02:49 -03:00
|
|
|
def test_timeout(self):
|
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
|
2013-12-07 19:57:01 -04:00
|
|
|
rd, wr = self.make_socketpair()
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
s.register(wr, selectors.EVENT_WRITE)
|
|
|
|
t = time()
|
|
|
|
self.assertEqual(1, len(s.select(0)))
|
|
|
|
self.assertEqual(1, len(s.select(-1)))
|
2013-10-25 12:56:00 -03:00
|
|
|
self.assertLess(time() - t, 0.5)
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
s.unregister(wr)
|
|
|
|
s.register(rd, selectors.EVENT_READ)
|
|
|
|
t = time()
|
|
|
|
self.assertFalse(s.select(0))
|
|
|
|
self.assertFalse(s.select(-1))
|
2013-10-25 12:56:00 -03:00
|
|
|
self.assertLess(time() - t, 0.5)
|
2013-09-04 14:02:49 -03:00
|
|
|
|
2013-10-25 12:56:00 -03:00
|
|
|
t0 = time()
|
2013-09-04 14:02:49 -03:00
|
|
|
self.assertFalse(s.select(1))
|
2013-10-25 12:56:00 -03:00
|
|
|
t1 = time()
|
2013-11-17 18:46:34 -04:00
|
|
|
dt = t1 - t0
|
2014-12-12 07:57:35 -04:00
|
|
|
# Tolerate 2.0 seconds for very slow buildbots
|
|
|
|
self.assertTrue(0.8 <= dt <= 2.0, dt)
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
@unittest.skipUnless(hasattr(signal, "alarm"),
|
|
|
|
"signal.alarm() required for this test")
|
2015-03-31 07:08:09 -03:00
|
|
|
def test_select_interrupt_exc(self):
|
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
|
|
|
|
rd, wr = self.make_socketpair()
|
|
|
|
|
|
|
|
class InterruptSelect(Exception):
|
|
|
|
pass
|
|
|
|
|
|
|
|
def handler(*args):
|
|
|
|
raise InterruptSelect
|
|
|
|
|
|
|
|
orig_alrm_handler = signal.signal(signal.SIGALRM, handler)
|
|
|
|
self.addCleanup(signal.signal, signal.SIGALRM, orig_alrm_handler)
|
|
|
|
|
2017-09-19 13:36:54 -03:00
|
|
|
try:
|
|
|
|
signal.alarm(1)
|
2015-03-31 07:08:09 -03:00
|
|
|
|
2017-09-19 13:36:54 -03:00
|
|
|
s.register(rd, selectors.EVENT_READ)
|
|
|
|
t = time()
|
|
|
|
# select() is interrupted by a signal which raises an exception
|
|
|
|
with self.assertRaises(InterruptSelect):
|
|
|
|
s.select(30)
|
|
|
|
# select() was interrupted before the timeout of 30 seconds
|
|
|
|
self.assertLess(time() - t, 5.0)
|
|
|
|
finally:
|
|
|
|
signal.alarm(0)
|
2015-03-31 07:08:09 -03:00
|
|
|
|
|
|
|
@unittest.skipUnless(hasattr(signal, "alarm"),
|
|
|
|
"signal.alarm() required for this test")
|
|
|
|
def test_select_interrupt_noraise(self):
|
2013-09-04 14:02:49 -03:00
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
|
2013-12-07 19:57:01 -04:00
|
|
|
rd, wr = self.make_socketpair()
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
orig_alrm_handler = signal.signal(signal.SIGALRM, lambda *args: None)
|
|
|
|
self.addCleanup(signal.signal, signal.SIGALRM, orig_alrm_handler)
|
|
|
|
|
2017-09-19 13:36:54 -03:00
|
|
|
try:
|
|
|
|
signal.alarm(1)
|
2013-09-04 14:02:49 -03:00
|
|
|
|
2017-09-19 13:36:54 -03:00
|
|
|
s.register(rd, selectors.EVENT_READ)
|
|
|
|
t = time()
|
|
|
|
# select() is interrupted by a signal, but the signal handler doesn't
|
|
|
|
# raise an exception, so select() should by retries with a recomputed
|
|
|
|
# timeout
|
|
|
|
self.assertFalse(s.select(1.5))
|
|
|
|
self.assertGreaterEqual(time() - t, 1.0)
|
|
|
|
finally:
|
|
|
|
signal.alarm(0)
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
|
|
|
|
class ScalableSelectorMixIn:
|
|
|
|
|
2013-09-08 07:31:32 -03:00
|
|
|
# see issue #18963 for why it's skipped on older OS X versions
|
|
|
|
@support.requires_mac_ver(10, 5)
|
2013-09-04 14:02:49 -03:00
|
|
|
@unittest.skipUnless(resource, "Test needs resource module")
|
2023-09-02 01:45:34 -03:00
|
|
|
@support.requires_resource('cpu')
|
2013-09-04 14:02:49 -03:00
|
|
|
def test_above_fd_setsize(self):
|
|
|
|
# A scalable implementation should have no problem with more than
|
|
|
|
# FD_SETSIZE file descriptors. Since we don't know the value, we just
|
|
|
|
# try to set the soft RLIMIT_NOFILE to the hard RLIMIT_NOFILE ceiling.
|
|
|
|
soft, hard = resource.getrlimit(resource.RLIMIT_NOFILE)
|
|
|
|
try:
|
|
|
|
resource.setrlimit(resource.RLIMIT_NOFILE, (hard, hard))
|
|
|
|
self.addCleanup(resource.setrlimit, resource.RLIMIT_NOFILE,
|
|
|
|
(soft, hard))
|
2014-07-22 17:25:03 -03:00
|
|
|
NUM_FDS = min(hard, 2**16)
|
2013-09-08 06:34:42 -03:00
|
|
|
except (OSError, ValueError):
|
2013-09-04 14:02:49 -03:00
|
|
|
NUM_FDS = soft
|
|
|
|
|
|
|
|
# guard for already allocated FDs (stdin, stdout...)
|
|
|
|
NUM_FDS -= 32
|
|
|
|
|
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
|
|
|
|
for i in range(NUM_FDS // 2):
|
|
|
|
try:
|
2013-12-07 19:57:01 -04:00
|
|
|
rd, wr = self.make_socketpair()
|
2013-09-04 14:02:49 -03:00
|
|
|
except OSError:
|
|
|
|
# too many FDs, skip - note that we should only catch EMFILE
|
|
|
|
# here, but apparently *BSD and Solaris can fail upon connect()
|
|
|
|
# or bind() with EADDRNOTAVAIL, so let's be safe
|
|
|
|
self.skipTest("FD limit reached")
|
|
|
|
|
|
|
|
try:
|
|
|
|
s.register(rd, selectors.EVENT_READ)
|
|
|
|
s.register(wr, selectors.EVENT_WRITE)
|
|
|
|
except OSError as e:
|
|
|
|
if e.errno == errno.ENOSPC:
|
|
|
|
# this can be raised by epoll if we go over
|
|
|
|
# fs.epoll.max_user_watches sysctl
|
|
|
|
self.skipTest("FD limit reached")
|
|
|
|
raise
|
|
|
|
|
2018-05-16 18:50:29 -03:00
|
|
|
try:
|
|
|
|
fds = s.select()
|
|
|
|
except OSError as e:
|
|
|
|
if e.errno == errno.EINVAL and sys.platform == 'darwin':
|
|
|
|
# unexplainable errors on macOS don't need to fail the test
|
|
|
|
self.skipTest("Invalid argument error calling poll()")
|
|
|
|
raise
|
|
|
|
self.assertEqual(NUM_FDS // 2, len(fds))
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
|
2021-09-19 09:27:33 -03:00
|
|
|
class DefaultSelectorTestCase(BaseSelectorTestCase, unittest.TestCase):
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
SELECTOR = selectors.DefaultSelector
|
|
|
|
|
|
|
|
|
2021-09-19 09:27:33 -03:00
|
|
|
class SelectSelectorTestCase(BaseSelectorTestCase, unittest.TestCase):
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
SELECTOR = selectors.SelectSelector
|
|
|
|
|
|
|
|
|
|
|
|
@unittest.skipUnless(hasattr(selectors, 'PollSelector'),
|
|
|
|
"Test needs selectors.PollSelector")
|
2021-09-19 09:27:33 -03:00
|
|
|
class PollSelectorTestCase(BaseSelectorTestCase, ScalableSelectorMixIn,
|
|
|
|
unittest.TestCase):
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
SELECTOR = getattr(selectors, 'PollSelector', None)
|
|
|
|
|
|
|
|
|
|
|
|
@unittest.skipUnless(hasattr(selectors, 'EpollSelector'),
|
|
|
|
"Test needs selectors.EpollSelector")
|
2021-09-19 09:27:33 -03:00
|
|
|
class EpollSelectorTestCase(BaseSelectorTestCase, ScalableSelectorMixIn,
|
|
|
|
unittest.TestCase):
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
SELECTOR = getattr(selectors, 'EpollSelector', None)
|
|
|
|
|
2016-09-15 20:30:42 -03:00
|
|
|
def test_register_file(self):
|
|
|
|
# epoll(7) returns EPERM when given a file to watch
|
|
|
|
s = self.SELECTOR()
|
|
|
|
with tempfile.NamedTemporaryFile() as f:
|
|
|
|
with self.assertRaises(IOError):
|
|
|
|
s.register(f, selectors.EVENT_READ)
|
|
|
|
# the SelectorKey has been removed
|
|
|
|
with self.assertRaises(KeyError):
|
|
|
|
s.get_key(f)
|
|
|
|
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
@unittest.skipUnless(hasattr(selectors, 'KqueueSelector'),
|
|
|
|
"Test needs selectors.KqueueSelector)")
|
2021-09-19 09:27:33 -03:00
|
|
|
class KqueueSelectorTestCase(BaseSelectorTestCase, ScalableSelectorMixIn,
|
|
|
|
unittest.TestCase):
|
2013-09-04 14:02:49 -03:00
|
|
|
|
|
|
|
SELECTOR = getattr(selectors, 'KqueueSelector', None)
|
|
|
|
|
2016-09-15 20:30:42 -03:00
|
|
|
def test_register_bad_fd(self):
|
|
|
|
# a file descriptor that's been closed should raise an OSError
|
|
|
|
# with EBADF
|
|
|
|
s = self.SELECTOR()
|
2020-08-10 18:24:02 -03:00
|
|
|
bad_f = os_helper.make_bad_fd()
|
2016-09-15 20:30:42 -03:00
|
|
|
with self.assertRaises(OSError) as cm:
|
|
|
|
s.register(bad_f, selectors.EVENT_READ)
|
|
|
|
self.assertEqual(cm.exception.errno, errno.EBADF)
|
|
|
|
# the SelectorKey has been removed
|
|
|
|
with self.assertRaises(KeyError):
|
|
|
|
s.get_key(bad_f)
|
|
|
|
|
2020-04-15 15:57:06 -03:00
|
|
|
def test_empty_select_timeout(self):
|
|
|
|
# Issues #23009, #29255: Make sure timeout is applied when no fds
|
|
|
|
# are registered.
|
|
|
|
s = self.SELECTOR()
|
|
|
|
self.addCleanup(s.close)
|
|
|
|
|
|
|
|
t0 = time()
|
|
|
|
self.assertEqual(s.select(1), [])
|
|
|
|
t1 = time()
|
|
|
|
dt = t1 - t0
|
|
|
|
# Tolerate 2.0 seconds for very slow buildbots
|
|
|
|
self.assertTrue(0.8 <= dt <= 2.0, dt)
|
|
|
|
|
2013-09-04 14:02:49 -03:00
|
|
|
|
2014-03-20 17:43:41 -03:00
|
|
|
@unittest.skipUnless(hasattr(selectors, 'DevpollSelector'),
|
|
|
|
"Test needs selectors.DevpollSelector")
|
2021-09-19 09:27:33 -03:00
|
|
|
class DevpollSelectorTestCase(BaseSelectorTestCase, ScalableSelectorMixIn,
|
|
|
|
unittest.TestCase):
|
2014-03-20 17:43:41 -03:00
|
|
|
|
|
|
|
SELECTOR = getattr(selectors, 'DevpollSelector', None)
|
|
|
|
|
|
|
|
|
2021-09-19 09:27:33 -03:00
|
|
|
def tearDownModule():
|
2013-09-04 14:02:49 -03:00
|
|
|
support.reap_children()
|
|
|
|
|
|
|
|
|
|
|
|
if __name__ == "__main__":
|
2021-09-19 09:27:33 -03:00
|
|
|
unittest.main()
|