C# async/await: how main thread knows that awaited function is completed and can resume the work ?

Question

Hi,

I'm trying to deep dive into the concept of async programming and need some help in understanding the same.

what I know : When control hits await func, it gives the execution work to pool thread and main thread gets free.

Query : how main thread knows that pool thread completed the async task ? is that main thread keeps checking the worker thread if task completed or not ?

note: i believe, pool thread / worker thread / background thread all are same.

Thanks,
Sravan kumar

Answer 1

There is no one straightforward answer and with that would defer you to this article.