Macro ports_store

macro_rules! ports_store {
    ($name:ident, $range:expr) => { ... };
    ($name:ident) => { ... };
}

Declares a shared storage for ports.

ports_store!(GLOBAL_PORTS);

#[tokio::test]
fn test1() {
    let cluster = ClusterBuilder::default()
        .ports(GLOBAL_PORTS.take(20).await.expect("enough ports"))
        .start()
        .await;
}