use std::net::{TcpListener, TcpStream};
use smol::{io, Async};
async fn echo(stream: Async<TcpStream>) -> io::Result<()> {
io::copy(&stream, &mut &stream).await?;
Ok(())
}
fn main() -> io::Result<()> {
smol::block_on(async {
let listener = Async::<TcpListener>::bind(([127, 0, 0, 1], 7000))?;
println!("Listening on {}", listener.get_ref().local_addr()?);
println!("Now start a TCP client.");
loop {
let (stream, peer_addr) = listener.accept().await?;
println!("Accepted client: {}", peer_addr);
smol::spawn(echo(stream)).detach();
}
})
}