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Suspend thread pool #3110
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Suspend thread pool #3110
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…dlock during exceptional shutdown Previously stop_locked would block on calling resume_internal, even if blocking was set to false. This lead to deadlocks when multiple threads call stop_locked and assume that only one of them has blocking set to true.
Wrong function name passed to HPX_THROWS_IF
- Make sure there is an idle thread which can do the stealing - Add comments to warn about corner cases
Change state_suspended to state_sleeping.
I.e. don't use pending_boost to let other work run first.
hkaiser
approved these changes
Jan 22, 2018
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LGTM, thanks a lot!
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Proposed Changes
#3080 plus some.
There was a deadlock during an exceptional shutdown which this fixes by adding a non-blocking version of
resume
tothread_pool_base
.This also makes it clearer when it is possible to suspend the OS thread on which the suspending HPX thread is running.
Any background context you want to provide?
See #3080 and #3108.