bidirectional-channel

use bidirectional_channel::{bounded};
use futures::join;

let (requester, responder) = bounded(1);

// A requesting task
let requester = async {
    requester
        .send("hello")
        .await
        .expect("Responder or UnRespondedRequest was dropped")
};

// A responding task.
// This receives an &str, and returns its length
let responder = async {
    let request = responder.recv().await.expect("Requester was dropped");
    let len = request.len();
    request.respond(len).unwrap()
};

// Perform the exchange
let (response, request) = join!(requester, responder);
assert!(request.len() == response)