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Implement Worker::is_same_as #1103

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james7132
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Currently it's not possible to tell if a Worker and a Stealer point to the same underlying queue. This make it difficult to tell which stealer to remove from a list and you have a local Worker on hand, or skip stealing from when given a global list of stealers. The implementation just forwards to Arc::ptr_eq on the inner buffer. Added a doctest as well.

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@taiki-e taiki-e left a comment

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Thanks for the PR! I'm positive about adding such a method.

crossbeam-deque/src/deque.rs Outdated Show resolved Hide resolved
/// assert!(!w_1.is_same_as(&s_2));
/// assert!(!w_2.is_same_as(&s_1));
/// ```
pub fn is_same_as(&self, stealer: &Stealer<T>) -> bool {
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@taiki-e taiki-e Apr 25, 2024

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I don't feel this method name is easy to understand, but I'm not sure what the good name would be.

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Not sure if Worker::ptr_eq is better. I can't seem to come up with a better name here either.

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How about Worker::donates_to?

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