Checks whether the given error was emitted by Tokio when shutting down its runtime.

Examples

# #[cfg(not(target_family = "wasm"))]
# {
use tokio::runtime::Runtime;
use tokio::net::TcpListener;

fn main() {
    let rt1 = Runtime::new().unwrap();
    let rt2 = Runtime::new().unwrap();

    let listener = rt1.block_on(async {
        TcpListener::bind("127.0.0.1:0").await.unwrap()
    });

    drop(rt1);

    rt2.block_on(async {
        let res = listener.accept().await;
        assert!(res.is_err());
        assert!(tokio::runtime::is_rt_shutdown_err(res.as_ref().unwrap_err()));
    });
}
# }