use std::net::TcpListener;
use std::thread;
use std::io::Read;
use std::io::Write;

fn main() {
    let listener = TcpListener::bind("127.0.0.1:6379").unwrap();
    for stream in listener.incoming() {
    match stream {
        Ok(mut stream) => {
            thread::spawn(move || {
                let mut b = [0u8; 512];
                loop {
                    let _ = stream.read(&mut b);
                    let _ = stream.write(b"+OK\r\n");
                }
            });
        }
        _ => {}
        }
    }
}