Wait until all task done

[LinkTed]

I used the #[tokio::main] macro. But how to implemented that the program waits until all task in the runtime are done?

#[tokio::main]
async fn main() {
    ...
}

[vorot93]

If you spawn all your needed tasks in main, you can easily do it with futures::future::join_all.

#[tokio::main]
async fn main() {
    let mut handles = vec![];
    handles.push(tokio::spawn(async { ... }));
    handles.push(tokio::spawn(async { ... }));

    futures::future::join_all(handles).await;
}

[LinkTed]

I cannot implement it like that because I spawn inside of another task.

#[tokio::main]
async fn main() {
    let mut handles = vec![];
    handles.push(tokio::spawn(async {
        tokio::spawn(async {...});
    }));
    handles.push(tokio::spawn(async { ... }));

    futures::future::join_all(handles).await;
}

Is there no function like shutdown_on_idle from the previous version?

[Gowee]

See #1957 .