Message 402725 - Python tracker

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Author	eryksun
Recipients	eryksun, paul.moore, steve.dower, tim.golden, vstinner, zach.ware
Date	2021-09-27.14:48:59
SpamBayes Score	-1.0
Marked as misclassified	Yes
Message-id	<1632754139.18.0.867485566569.issue45301@roundup.psfhosted.org>
In-reply-to

Content
> IMO it's time to remove _PY_EMULATED_WIN_CV code path from > pycore_condvar.h. SleepConditionVariableSRW() can't be interrupted in PyCOND_WAIT() and PyCOND_TIMEDWAIT(). Maybe a hybrid solution could be adopted. Use native condition variables for the GIL, where performance matters and the ability to interrupt the wait doesn't matter. Otherwise use the semaphore implementation, for which the wait implementation can be modified to use WaitForMultipleObjects(), and include the Ctrl+C event.

>  IMO it's time to remove _PY_EMULATED_WIN_CV code path from 
> pycore_condvar.h.

SleepConditionVariableSRW() can't be interrupted in PyCOND_WAIT() and PyCOND_TIMEDWAIT(). Maybe a hybrid solution could be adopted. Use native condition variables for the GIL, where performance matters and the ability to interrupt the wait doesn't matter. Otherwise use the semaphore implementation, for which the wait implementation can be modified to use WaitForMultipleObjects(), and include the Ctrl+C event.

History
Date	User	Action	Args
2021-09-27 14:48:59	eryksun	set	recipients: + eryksun, paul.moore, vstinner, tim.golden, zach.ware, steve.dower
2021-09-27 14:48:59	eryksun	set	messageid: <1632754139.18.0.867485566569.issue45301@roundup.psfhosted.org>
2021-09-27 14:48:59	eryksun	link	issue45301 messages
2021-09-27 14:48:59	eryksun	create