A modern programming language that makes developers happier.

kotlinlang

What are the key things to be aware of with threads in Kotlin Native when it comes to C interop? Have a situation where a segmentation fault occurs when a callback (on the 2nd thread) is invoked by a C API (on the 1st thread which is the main thread?).

You need to call initRuntime or something like that from the callback.

Do you pass kotlin objects via this callback? `StableRef`?

Presumably *all* the callbacks used with the Paho MQTT Client library run in the 2nd thread.

Is there a way to determine at runtime with Kotlin Native which thread the callback is running on?

Thinking that the Kotlin Native C interop documentation should be updated to include a Paho MQTT Client callback example that uses the *initRuntimeIfNeeded* function.

Not built in but you could use a Thread Local variable to check.

You might be able to use `Worker.current`.