bpo-39010: Fix errors logged on proactor loop restart (#22017)

Stopping and restarting a proactor event loop on windows can lead to
spurious errors logged (ConnectionResetError while reading from the
self pipe). This fixes the issue by ensuring that we don't attempt
to start multiple copies of the self-pipe reading loop.
This commit is contained in:
Ben Darnell 2020-08-31 15:57:52 -04:00 committed by GitHub
parent c3a651ad25
commit ea5a6363c3
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5 changed files with 37 additions and 2 deletions

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@ -753,6 +753,7 @@ class BaseProactorEventLoopTests(test_utils.TestCase):
def test_loop_self_reading_fut(self):
fut = mock.Mock()
self.loop._self_reading_future = fut
self.loop._loop_self_reading(fut)
self.assertTrue(fut.result.called)
self.proactor.recv.assert_called_with(self.ssock, 4096)