pub fn ctrl_shutdown() -> Result<CtrlShutdown>Available on Windows and crate feature 
signal only.Expand description
Creates a new listener which receives “ctrl-shutdown” notifications sent to the process.
§Examples
use tokio::signal::windows::ctrl_shutdown;
#[tokio::main]
async fn main() -> Result<(), Box<dyn std::error::Error>> {
    // A listener of CTRL-SHUTDOWN events.
    let mut signal = ctrl_shutdown()?;
    signal.recv().await;
    println!("got CTRL-SHUTDOWN. Cleaning up before exiting");
    Ok(())
}