bug: App gets frozen when using a custom Tokio runtime

[reyamir]

Description: Add custom-tokio-rt to Cargo features. Then create simple app:

#[tokio::main]
async fn main() {
    launch_with_title(|| rsx!(label { "Hello, World!" }), "Custom Tokio Runtime")
}

And run app like normally, after few seconds CPU usage will spike to very high cause app hang forever.

Reprocedue repo: https://github.com/reyamir/macos-app-stuck

[marc2332]

Seems to also affect Linux, but not Windows

[marc2332]

Can you try with:

fn main() {
    let rt = tokio::runtime::Builder::new_multi_thread()
    .enable_all()
    .build()
    .unwrap();
    let _guard = rt.enter();
    launch_with_title(|| rsx!(label { "Hello, World!" }), "Custom Tokio Runtime")
}

[reyamir]

It still stuck after few seconds

[reyamir]

Oh sorry, I still use #[tokio::main] and async fn main I've updated my code exactly like you, and it work fine now.

[marc2332]

Nice, just fixed the example in https://github.com/marc2332/freya/commit/ef35ad266d324325c5af95226eca819c912ac545