rt: use optional non-zero value for task owner_id
#5876
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We switch to using a `NonZeroU64` for the `id` field for `OwnedTasks` and `LocalOwnedTasks` lists. This allows the task header to contain an `Option<NonZeroU64>` instead of a `u64` with a special meaning for 0. The size in memory will be the same thanks to Rust's niche optimization, but this solution is clearer in its intent.
Darksonn
reviewed
Jul 17, 2023
Darksonn
added
A-tokio
Darksonn
reviewed
Jul 17, 2023
Co-authored-by: Alice Ryhl <aliceryhl@google.com>
Co-authored-by: Alice Ryhl <aliceryhl@google.com>
- add comments when exiting early from (Local)OwnedTasks::remove - set_owner_id no longer takes an Option - comment corrections
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Darksonn
approved these changes
Jul 17, 2023
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We switch to using a
NonZeroU64for theidfield forOwnedTasksand
LocalOwnedTaskslists. This allows the task header to contain anOption<NonZeroU64>instead of au64with a special meaning for 0.The size in memory will be the same thanks to Rust's niche optimization,
but this solution is clearer in its intent.