[5.5][Concurrency] Use pthread_specific for thread-local storage on Darwin. #38163
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…arwin. The pthread_specific APIs are better than C++ thread_local storage on Darwin since we can use Swift's reserved pthread keys there. rdar://79504652 (cherry picked from commit 190d3fd)
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@swift-ci please test |
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@swift-ci please test windows platform |
ktoso
approved these changes
Jul 1, 2021
DougGregor
approved these changes
Jul 2, 2021
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Cherry-pick #38162 to 5.5.
The pthread_specific APIs are better than C++ thread_local storage on Darwin since we can use Swift's reserved pthread keys there.
rdar://79504652