fn proxy_connection(
    server_stream: TcpStream,
    client_stream: TcpStream,
) -> impl Future<Item = (), Error = ()> {
    let (sreader, swriter) = server_stream.split();
    let (creader, cwriter) = client_stream.split();

    let from_server_bytes_copied = copy(sreader, cwriter);
    let from_client_bytes_copied = copy(creader, swriter);

    let handle_from_server = from_server_bytes_copied
        .map(|count| {
            println!("wrote {} bytes from server to client.", count.0);
            println!("Server closed the connection. Disconnecting from client.");
        })
        .map_err(|err| eprintln!("IO error {:?}", err));

    let handle_from_client = from_client_bytes_copied
        .map(|count| {
            println!("wrote {} bytes from client to server.", count.0);
            println!("Client closed the connection. Disconnecting from server.");
        })
        .map_err(|err| eprintln!("IO error {:?}", err));

    // Wait for one to complete then drop the other.
    handle_from_server
        .select(handle_from_client)
        .then(|_res| future::ok(()))
}
/// Proxy connection copies bytes back and forth between two TcpStreams.
/// This returns a future which will resolve when either stream closes the
/// connection.
Proxy connection copies bytes back and forth between two TcpStreams.
This returns a future which will resolve when either stream closes the
connection.
Proxy connection copies bytes back and forth between two TcpStreams . This returns a future which will resolve when either stream closes the connection .
fn proxy_connection(
    server_stream: TcpStream,
    client_stream: TcpStream,
) -> impl Future<Item = (), Error = ()> {
    let (sreader, swriter) = server_stream.split();
    let (creader, cwriter) = client_stream.split();
    let from_server_bytes_copied = copy(sreader, cwriter);
    let from_client_bytes_copied = copy(creader, swriter);
    let handle_from_server = from_server_bytes_copied
        .map(|count| {
            println!("wrote {} bytes from server to client.", count.0);
            println!("Server closed the connection. Disconnecting from client.");
        })
        .map_err(|err| eprintln!("IO error {:?}", err));
    let handle_from_client = from_client_bytes_copied
        .map(|count| {
            println!("wrote {} bytes from client to server.", count.0);
            println!("Client closed the connection. Disconnecting from server.");
        })
        .map_err(|err| eprintln!("IO error {:?}", err));
    // Wait for one to complete then drop the other.
    handle_from_server
        .select(handle_from_client)
        .then(|_res| future::ok(()))
}
fn proxy_connection ( server_stream : TcpStream , client_stream : TcpStream , ) -> impl Future < Item = ( ) , Error = ( ) > { let ( sreader , swriter ) = server_stream . split ( ) ; let ( creader , cwriter ) = client_stream . split ( ) ; let from_server_bytes_copied = copy ( sreader , cwriter ) ; let from_client_bytes_copied = copy ( creader , swriter ) ; let handle_from_server = from_server_bytes_copied . map ( | count | { println ! ( " " count 0 ) ; println ! ( " " ) ; } ) . map_err ( | err | eprintln ! ( " " err ) ) ; let handle_from_client = from_client_bytes_copied . map ( | count | { println ! ( " " count 0 ) ; println ! ( " " ) ; } ) . map_err ( | err | eprintln ! ( " " err ) ) ; // Wait for one to complete then drop the other. handle_from_server . select ( handle_from_client ) . then ( | _res | future :: ok ( ( ) ) ) }
Proxy connection copies bytes back and forth between two TcpStreams.
Proxy connection copies bytes back and forth between two TcpStreams .
server_stream
TcpStream
client_stream
TcpStream
server_stream
TcpStream
client_stream
TcpStream