how to use a joinhandle twice in a select?

[dan-da]

Let's say I spawn a task A and I have a channel B. I want to loop and select!() either that A finishes or a quit message is received on B. If the latter, then abort() task A.

something iike:

    tokio::select!{
        Ok(_v) = a_joinhandle => { ... },
        
        _ = b_rx.recv() => {
            a_joinhandle.abort();
        }
    }

Unfortunately I get a compiler error at the abort call because a_joinhandle is already moved above.

So, how to accomplish this?

here's a playground

[dan-da]

answering myself. I found the solution here.

Ok(_v) = &mut a_joinhandle => { ... },

and voila it works.

[Darksonn]

Yep. That's the way to do it.