interrupt and resume coroutines from other threads?

[alex-s168]

It looks like one can already interrupt a coroutine and get it's register state.
Is it possible to also make them resumable from the register state?

[Amanieu]

Yes, if you interrupt a coroutine in a signal handler then you can save its register state and resume it later. But that's true for any code, not just coroutines.

[alex-s168]

Is there some existing abstraction over that?