Multi-threaded access to index.add() runs into a deadlock (Swift) about usearch HOT 5 OPEN

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Interesting! Do you have a dataset example? I will try to reproduce.

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The dataset does not seem to matter. Will try to reproduce it in a sample but here is an example of a blocked code. I have 3 threads waiting for each other in

    return __atomic_fetch_or(&slots_[i / bits_per_slot()], mask, __ATOMIC_ACQUIRE) & mask;

of method: inline bool atomic_set(std::size_t i) noexcept {...}

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@ashvardanian is this something you can reproduce on your side ? Regards.

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Hi @spicymatt! I think I can, but I was working on the C# issues yesterday, and will try to find time to work on Swift today. It would be great if you could open a PR with a minimal test that breaks. It will definitely make things faster for me. Thanks!

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