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Issue #27906: Fix socket accept exhaustion during high TCP traffic.

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Patch by Kevin Conway.
This commit is contained in:
Yury Selivanov 2016-09-15 14:13:15 -04:00
parent 4357cf6202
commit a1b0e7db73
6 changed files with 60 additions and 36 deletions
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2
Lib/test/test_asyncio/test_base_events.py
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@ -1634,7 +1634,7 @@ class BaseEventLoopWithSelectorTests(test_utils.TestCase):
self.loop.call_later.assert_called_with(constants.ACCEPT_RETRY_DELAY,
# self.loop._start_serving
mock.ANY,
MyProto, sock, None, None)
MyProto, sock, None, None, mock.ANY)
def test_call_coroutine(self):
@asyncio.coroutine

14
Lib/test/test_asyncio/test_selector_events.py
View file

@ -687,6 +687,20 @@ class BaseSelectorEventLoopTests(test_utils.TestCase):
selectors.EVENT_WRITE)])
self.loop.remove_writer.assert_called_with(1)
def test_accept_connection_multiple(self):
sock = mock.Mock()
sock.accept.return_value = (mock.Mock(), mock.Mock())
backlog = 100
# Mock the coroutine generation for a connection to prevent
# warnings related to un-awaited coroutines.
mock_obj = mock.patch.object
with mock_obj(self.loop, '_accept_connection2') as accept2_mock:
accept2_mock.return_value = None
with mock_obj(self.loop, 'create_task') as task_mock:
task_mock.return_value = None
self.loop._accept_connection(mock.Mock(), sock, backlog=backlog)
self.assertEqual(sock.accept.call_count, backlog)
class SelectorTransportTests(test_utils.TestCase):