How Do I Set KeepAlive?

[silence-coding]

tokio: 1.9.0

I set it up in this inelegant way, is there a better way to do it? I don't want to rely on socket2 and so on.

pub fn to_socket(stream: &TcpStream) -> TcpSocket {
    use std::os::unix::io::{AsRawFd, FromRawFd};
    let fd = stream.as_raw_fd();
    let dup_fd = unsafe { libc::dup(fd) };
    unsafe { TcpSocket::from_raw_fd(dup_fd) }
}
let socket = to_socket(&stream);
socket.set_keepalive_params( TcpKeepalive::new().with_time(Duration::from_secs(10)) );