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//! TCP echo server.
//!
//! To send messages, do:
//!
//! ```sh
//! $ nc localhost 8080
//! ```
use async_std::io;
use async_std::net::{TcpListener, TcpStream};
use async_std::prelude::*;
use async_std::task;
async fn process(stream: TcpStream) -> io::Result<()> {
println!("Accepted from: {}", stream.peer_addr()?);
let mut reader = stream.clone();
let mut writer = stream;
io::copy(&mut reader, &mut writer).await?;
Ok(())
}
fn main() -> io::Result<()> {
task::block_on(async {
let listener = TcpListener::bind("127.0.0.1:8080").await?;
println!("Listening on {}", listener.local_addr()?);
let mut incoming = listener.incoming();
while let Some(stream) = incoming.next().await {
let stream = stream?;
task::spawn(async {
process(stream).await.unwrap();
});
}
Ok(())
})
}
|
