Section: 32.7 [thread.condition] Status: NAD Submitter: INCITS Opened: 2010-08-25 Last modified: 2019-02-26
Priority: Not Prioritized
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Discussion:
Addresses US-193
Condition variables preclude a wakeup optimization.
[ Resolution proposed by ballot comment: ]
Change condition_variable to allow such optimization. See Appendix 1 - Additional Details
[ 2010 Batavia ]
The Concurrency subgroup reviewed the issue, and deemed it an extension to be handled after C++0x.
Rationale:
The LWG does not wish to make the change at this time.
[LEWG Kona 2017]
Recommend NAD: (N4618 numbering) 30.5.1[thread.condition.condvar] p10.3 allows spurious wakeups. This issue is out of date.
[2017-03-01, Kona]
SG1 recommends: Close as NAD
The approach suggested there raises all sorts of issues aboutthread_locals, etc. It's probably way too late
to change this anyway, but this would have required a careful paper.
Proposed resolution: