tcp_server.rs

use std::io;
use std::io::prelude::*;
use std::net::{TcpListener, TcpStream};
use std::thread;

fn handle_connection(mut stream: TcpStream) {
    let mut buffer = [0; 512];

    loop {
        stream.read(&mut buffer).unwrap();
        // println!("request: {}", String::from_utf8_lossy(&buffer[..]));

        let response = "+OK\r\n";

        stream.write(response.as_bytes()).unwrap();
        stream.flush().unwrap();
    }
}

fn main() -> io::Result<()> {
    let listener = TcpListener::bind("[::1]:4343").unwrap();

    for stream in listener.incoming() {
        let stream = stream.unwrap();

        thread::spawn(|| {
            handle_connection(stream);
        });
    }

    Ok(())
}