8000 gh-112989: asyncio: Reduce overhead to connect sockets with SelectorEventLoop by bdraco · Pull Request #112991 · python/cpython · GitHub
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gh-112989: asyncio: Reduce overhead to connect sockets with SelectorEventLoop #112991

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Merged
merged 2 commits into from
Dec 13, 2023
Merged

gh-112989: asyncio: Reduce overhead to connect sockets with SelectorEventLoop #112991

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gh-112989: asyncio: Reduce overhead to connect sockets with SelectorE…
bdraco Dec 12, 2023
c17327d
📜🤖 Added by blurb_it.
blurb-it[bot] Dec 12, 2023
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14 changes: 5 additions & 9 deletions Lib/asyncio/selector_events.py
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Original file line number Diff line number Diff line change
Expand Up @@ -261,15 +261,11 @@ def _ensure_fd_no_transport(self, fd):
except (AttributeError, TypeError, ValueError):
# This code matches selectors._fileobj_to_fd function.
raise ValueError(f"Invalid file object: {fd!r}") from None
try:
transport = self._transports[fileno]
except KeyError:
pass
else:
if not transport.is_closing():
raise RuntimeError(
f'File descriptor {fd!r} is used by transport '
f'{transport!r}')
transport = self._transports.get(fileno)
if transport and not transport.is_closing():
raise RuntimeError(
f'File descriptor {fd!r} is used by transport '
f'{transport!r}')

def _add_reader(self, fd, callback, *args):
self._check_closed()
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1 change: 1 addition & 0 deletions Misc/NEWS.d/next/Library/2023-12-12-05-48-17.gh-issue-112989.ZAa_eq.rst
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@@ -0,0 +1 @@
Reduce overhead to connect sockets with :mod:`asyncio` SelectorEventLoop.
0