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Set event manual reset flag to true #1073

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Set event manual reset flag to true #1073

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f3a4129
Set event manual reset flag to true
ptosco Sep 20, 2025
de72b45
address review comment
ptosco Oct 17, 2025
6b1125f
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Oct 17, 2025
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19 changes: 18 additions & 1 deletion jupyter_client/win_interrupt.py
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Original file line number Diff line number Diff line change
Expand Up @@ -31,10 +31,27 @@ class SECURITY_ATTRIBUTES(ctypes.Structure): # noqa
sa.nLength = ctypes.sizeof(SECURITY_ATTRIBUTES)
sa.lpSecurityDescriptor = 0
sa.bInheritHandle = 1
# ensure backward compatibility with older ParentPollerWindows
# implementations which relied on bManualReset to be set to False
# upon event creation
MANUAL_RESET_ATTR = "manual_reset"
if not hasattr(create_interrupt_event, MANUAL_RESET_ATTR):
manual_reset = False
try:
from ipykernel.parentpoller import ParentPollerWindows

if hasattr(ParentPollerWindows, "reset_event"):
manual_reset = True
except ImportError:
pass
finally:
setattr(create_interrupt_event, MANUAL_RESET_ATTR, manual_reset)
else:
manual_reset = getattr(create_interrupt_event, MANUAL_RESET_ATTR)

return ctypes.windll.kernel32.CreateEventA( # type:ignore[attr-defined]
sa_p,
False,
manual_reset,
False,
"", # lpEventAttributes # bManualReset # bInitialState
) # lpName
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