The series continue.

Creating other types of synchronization objects that can be used with co_await, part 6

by Raymond Chen

From the article:

Our next stop in showing off our library for building awaitable synchronization objects is the semaphore. This will look very familiar because a semaphore with a maximum token count of 1 is the same thing as an auto-reset event, so we can just extend our auto-reset event implementation to support multiple tokens...