task: Add TaskLocalFuture::take_value method to the task_local
#6340
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Darksonn
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Feb 15, 2024
Darksonn
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Feb 19, 2024
Co-authored-by: Alice Ryhl <[email protected]>
Co-authored-by: Alice Ryhl <[email protected]>
Co-authored-by: Alice Ryhl <[email protected]>
Co-authored-by: Alice Ryhl <[email protected]>
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Motivation
Try to resolve #5743.
This PR adds a method
take_valueto take the task local value of aTaskLocalFuture.The
LocalKey::scope()function owns the slot value and drops it, but this method will allow you to re-acquire ownership of the slot value.Solution
Implemented method
take_valuefor a pinnedTaskLocalFuture.Maybe it is possible to provide non-pinned api as well (
pub fn take_value(&mut self) -> Option<T>), but I'm not sure if it is worth providing both.