I understand that in a single-threaded environment, functions are typically atomic, meaning they should run to completion before another function can execute. However, I recently came across the concept of green threads in Go and I’m puzzled about how context switching works in this context.

In a single-threaded environment, If a green thread is executing, what mechanism ensures that it can be paused and another green thread can make progress before the first one completes?

I couldn’t find much detailed information about this specific aspect online. Could someone explain or point me to resources that clarify how Go handles green threads and context switching in a single-threaded environment?