Function channel 

pub fn channel<T: Clone + Send + Sync + 'static>(
    capacity: usize,
) -> (Sender<T>, Receiver<T>)

Creates a broadcast channel holding the last capacity values (rounded up to a power of two), returning a sender and a first receiver.

Panics

When capacity is zero, or above usize::MAX / 2.

use nuclei::sync::broadcast;

let (tx, mut rx) = broadcast::channel::<u32>(4);
tx.send(1).unwrap();
assert_eq!(rx.try_recv(), Ok(1));