8000 gh-131466: `concurrent.futures.Executor.map`: avoid temporarily exceeding `buffersize` while collecting the next result by ebonnal · Pull Request #131467 · python/cpython · GitHub
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gh-131466: concurrent.futures.Executor.map: avoid temporarily exceeding buffersize while collecting the next result #131467

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gh-131466: concurrent.futures.Executor.map: avoid temporarily exceeding buffersize while collecting the next result #131467

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233ccc1
`Executor.map`: avoid temporarily exceeding the `buffersize` while co…
ebonnal Mar 19, 2025
b864ef9
Merge remote-tracking branch 'cpython/main' into feat/executor-map-bu…
ebonnal Mar 19, 2025
72d7028
avoid keeping a ref to result for test_thread_pool.ThreadPoolExecutor…
ebonnal Mar 19, 2025
2a30697
update comment about not keeping references to popped future/result
ebonnal Mar 19, 2025
ab4182b
introduce `current_timeout` variable
ebonnal Mar 19, 2025
7a1ae46
comment on the necessity of the result container
ebonnal Mar 19, 2025
268927d
avoid container
ebonnal Mar 20, 2025
de09aff
remove current_timeout usage
ebonnal Mar 20, 2025
1814bfe
fix comments format
ebonnal Mar 20, 2025
7206321
rephrase comments
ebonnal Mar 20, 2025
162add1
order imports
ebonnal Mar 23, 2025
f2c5fd0
format comments
ebonnal Mar 23, 2025
9474769
remove _result_or_cancel
ebonnal Mar 23, 2025
2a2119e
access awaited result via _result attribute
ebonnal Mar 23, 2025
3be6956
break a reference cycle with `fs[-1]._exception`
ebonnal Mar 24, 2025
0d70be9
break other potential reference cycles with fs, not only the one caus…
ebonnal Mar 24, 2025
f509097
lighter ref cycle break
ebonnal Mar 25, 2025
d50dabd
move the ref cycle break into the finally block
ebonnal Mar 25, 2025
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access awaited result via _result attribute
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@ebonnal
ebonnal committed Mar 23, 2025
commit 2a2119ecd5ce096e7f03885708bd1ceea10f4b6b
2 changes: 1 addition & 1 deletion Lib/concurrent/futures/_base.py
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Original file line number Diff line number Diff line change
Expand Up @@ -632,7 +632,7 @@ def result_iterator():
fs.appendleft(executor.submit(fn, *args))

# yield the awaited result
yield fs.pop().result()
yield fs.pop()._result
finally:
for future in fs:
future.cancel()
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