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Java's `CyclicBarrier` is really nice, but using it from Kotlin is not nice, since it's not coroutine-friendly.

I've searched high and low, and haven't found a good alternative other than to roll my own. Has anyone run into this?

It's not coroutine-friendly because awaiting the barrier blocks the thread rather than suspending the coroutine.

I see `CyclicBarrier` exists in Arrow - is this useful for you?

<https://apidocs.arrow-kt.io/arrow-fx-coroutines/arrow.fx.coroutines/-cyclic-barrier/index.html>

This looks very promising! Thank you so much!

Confirmed this is exactly what I needed, and is working great

It let me delete 469 lines of custom `CyclicBarrier` implementation and tests, which was certainly worse than the Arrow version
<https://github.com/hudson155/kairo/pull/694>