Add LocalWaker and ContextBuilder types to core, and LocalWake trait to alloc.#118960

Merged

bors merged 16 commits into

rust-lang:masterfrom

tvallotton:local_waker

Feb 5, 2024

Commits on Jan 20, 2024

feat: add LocalWaker type, ContextBuilder type, and LocalWake trait.
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perf: move null check from local_wake() to build()
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refactor: remove in favor of and to make the API infallible.
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feat: add try_waker and From<&mut Context> for ContextBuilder to allow the extention of contexts by futures
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fix: make LocalWake available in targets that don't support atomics by removing a #[cfg(target_has_atomic = ptr)]
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chore: add tracking issue number to local waker feature
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feat: impl AsRef<LocalWaker> for Waker.
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chore: fix ci failures
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fix: change issue number of waker_getters from #87021 to #96992.
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chore: add and !Sync impls for LocalWaker as a stability guarantee.
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doc: update thread safety explanation for RawWakerVTable and RawWaker.
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fix: Apply suggestions from code review

tvallotton
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Mark-Simulacrum
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docs: remove recommendations to use LocalWaker in stable API documentation
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chore: make method order consistent with waker
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refactor: make waker mandatory.
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doc: fix some doctests after rebase
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