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gh-84570: Send-Wait Fixes for _xxinterpchannels #111006

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Merged
ericsnowcurrently merged 10 commits into from
Oct 17, 2023
Merged

gh-84570: Send-Wait Fixes for _xxinterpchannels #111006

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1d417f7
Expose PyThread_acquire_lock_timed_with_retries().
ericsnowcurrently Sep 18, 2023
0d2769a
Use PyThread_acquire_lock_timed_with_retries().
ericsnowcurrently Sep 18, 2023
202f700
Free the lock.
ericsnowcurrently Oct 16, 2023
38bf6a1
Add _channelitem.received.
ericsnowcurrently Oct 16, 2023
fff6708
Revert "Add _channelitem.received."
ericsnowcurrently Oct 16, 2023
f904a52
Stop waiting when the channel is closed.
ericsnowcurrently Oct 10, 2023
419ed33
Clean up (incl. clear the sent item if waiting failed).
ericsnowcurrently Oct 17, 2023
09fccc6
Add basic tests for send-wait.
ericsnowcurrently Oct 17, 2023
7fcf8fe
Skip a test under refleak runs.
ericsnowcurrently Oct 17, 2023
ab148fa
Handle a small race with waiting->status when releasing.
ericsnowcurrently Oct 17, 2023
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Skip a test under refleak runs.
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@ericsnowcurrently
ericsnowcurrently committed Oct 17, 2023
commit 7fcf8fe9a1ac6c8f90e44f9b993a4d0aefcfe6cc
12 changes: 12 additions & 0 deletions Lib/test/test__xxinterpchannels.py
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Original file line number Diff line number Diff line change
Expand Up @@ -878,6 +878,18 @@ def f():
t.join()

def test_send_buffer_closed_while_waiting(self):
try:
self._has_run_once
except AttributeError:
# At the moment, this test leaks a few references.
# It looks like the leak originates with the addition
# of _channels.send_buffer() (gh-110246), whereas the
# tests were added afterward. We want this test even
# if the refleak isn't fixed yet, so we skip here.
raise unittest.SkipTest('temporarily skipped due to refleaks')
else:
self._has_run_once = True

obj = bytearray(b'spam')
wait = self.build_send_waiter(obj, buffer=True)
cid = channels.create()
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