set stream property when connect to ws server

[QuantumXiecao]

tungstenite-0.17.2: client.rs

pub fn connect_with_config<Req: IntoClientRequest>(
    request: Req,
    config: Option<WebSocketConfig>,
    max_redirects: u8,
) -> Result<(WebSocket<MaybeTlsStream<TcpStream>>, Response)> {
    fn try_client_handshake(
        request: Request,
        config: Option<WebSocketConfig>,
    ) -> Result<(WebSocket<MaybeTlsStream<TcpStream>>, Response)> {
        let uri = request.uri();
        let mode = uri_mode(uri)?;
        let host = request.uri().host().ok_or(Error::Url(UrlError::NoHostName))?;
        let port = uri.port_u16().unwrap_or(match mode {
            Mode::Plain => 80,
            Mode::Tls => 443,
        });
        let addrs = (host, port).to_socket_addrs()?;
        let mut stream = connect_to_some(addrs.as_slice(), request.uri())?;
        NoDelay::set_nodelay(&mut stream, true)?;
      
       //ideally
      stream.set_non_blocking..
      stream.set...
       ....
}

I have searched that many people want non-blocking read instead of using tokio.
The most easiest way may be allow coders to set stream properties of stream.

[daniel-abramov]

The developers are free to choose the version that they prefer (it's up to the requirements of their project), we provide the flexibility of using either of them. But I did not quite get what you tried to convey in this issue: was it a question of how to change the stream?

Making stream non-blocking is a simple thing and has always been possible, see #281.