Rx Observable 值类型

Question

I have an API receiving messages as structs in a callback method

void OnReceive(ref T message)

. That method receives those struct objects by reference to avoid copy. I am thinking to wrap that API and expose messages as observable.

Given that I can't make an observable of struct references and that the structs are passed/returned by making a copy that solution

Observable<T> GetItems() //where T is struct

seems to be pretty suboptimal and it is better to keep using callback approach all the way through. Is there a better way to deal with structs in Rx extension library?

Answer 1

You could simply wrap the value type in a class and have the observable pass the class.

Something like this:

public class Ref<T> where T : struct { public T Value { get; init; } }