Rust inspired Async Lock for C
Venturing back into C# for the first time in a long time. I'm only 5 minutes in and already felt compelled to create a new utility class.
Essentially I'm adding an ASP.NET Web API to a daemon process, which requires that the REST API
can get exclusive access to some daemon in-memory state. Since I'm building everything around
async/await, I went looking for the async equivalent of the traditional lock, only to not find
one. From what I could gather, the recommendation is to build one around SemaphoreSlim. After
using that explicitly, I was really uncomfortable with having to make sure that I a) released the
semaphore and b) did it in a try/finally.