[Concurrency] Implement basic runtime support for task futures.#34703

Merged

DougGregor merged 13 commits into

swiftlang:mainfrom

DougGregor:concurrency-task-future

Nov 15, 2020

Commits on Nov 14, 2020

[Concurrency] Implement basic runtime support for task futures.
DougGregor
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[Future] Add a test to make sure we're handling object lifetimes properly.
DougGregor
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[Futures] Fix up some comments to address some comments.
DougGregor
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[Concurrency] Use a single atomic for future wait queue.
DougGregor
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[Concurrency] Use SchedulerPrivate for the "next waiting task" link.
DougGregor
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[Concurrency] Turn "simple task" into just "task".
DougGregor
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[Concurrency] Inline AsyncTask::FutureFragment::fragmentSize.
DougGregor
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[Concurrency] Clarify/fix error object handling in futures.
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[Concurrency] Have future functions write their results directly.
DougGregor
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[Concurrency] Minor cleanups to futures.
DougGregor
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[Concurrency] Remove an unnecessary 'const' from a non-static data member.
DougGregor
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[Concurrency] More cleanups for futures
DougGregor
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Remove test that depends on Swift.Int metadata, which isn't around.
DougGregor
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