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