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By what mechanism do Kotlin/Native workers request an underlying thread to terminate? I've managed to find `requestTerminationInternal`  which is an `external fun` so I'm not quite sure how to keep digging on this. I imagine it differs on each platform, but is this documented functionality anywhere?

<https://github.com/JetBrains/kotlin/blob/30788566012c571aa1d3590912468d1ebe59983d/kotlin-native/runtime/src/main/kotlin/kotlin/native/concurrent/Internal.kt#L48|https://github.com/JetBrains/kotlin/blob/30788566012c571aa1d3590912468d1ebe59983d/[…]ve/runtime/src/main/kotlin/kotlin/native/concurrent/Internal.kt>

one line up:
```@GCUnsafeCall("Kotlin_Worker_requestTerminationWorkerInternal")```

Yeah I just realized that's the corresponding name in cpp. It leads here. <https://github.com/JetBrains/kotlin/blob/dd051c155640ff4b83f1cf1c730bd21387a49453/kotlin-native/runtime/src/main/cpp/Worker.cpp#L775>

For anyone wondering in the future, it seems that when requesting worker termination, a termination job is placed in the queue of work. The worker will continually take from the queue and when it sees the termination job it breaks the loop and returns.

<https://github.com/JetBrains/kotlin/blob/dd051c155640ff4b83f1cf1c730bd21387a49453/kotlin-native/runtime/src/main/cpp/Worker.cpp#L998-L1000>