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Waitgroup in tokio! #5319

Answered by Darksonn
ab-basit asked this question in Ideas
Dec 27, 2022 · 5 comments · 1 reply
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The standard use-case for WaitGroup in go is to wait for a set of tasks to finish, but the best way to do that in Tokio is to store a Vec<JoinHandle<T>> and use a loop:

let mut join_handles = Vec::new();
for i in 0..10 {
    join_handles.push(tokio::spawn(my_async_fn(i)));
}
for jh in join_handles {
    jh.await.unwrap();
}

You can also use a JoinSet instead of the vector.

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@Noah-Kennedy
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