BitSoft.AsyncTools

Yet another one threading tools library for .NET.

WaitAsync for WaitHandler

You can use async await for WaitHandler. For example:

using var handler = new ManualResetEvent(initialState: false);
...
await handler.WaitAsync(cancellationToken: cts.Token);

AwaitAsync() is awaiable for ManualResetEvent, AutoResetEvent etc.