main.rs

use hello::ThreadPool; // ambil ThreadPool dari src/lib.rs (template code orang btw, dgn sedikit modifikasi)
use std::{
    fs,
    io::{ prelude::*, BufReader },
    net::{ TcpListener, TcpStream },
    thread,
    time::Duration,
};

fn main() {
    let listener = TcpListener::bind("127.0.0.1:7878").unwrap();

    // pakai build dan handling error
    let pool = ThreadPool::build(4).unwrap_or_else(|err| {
        eprintln!("Problem creating ThreadPool: {err}");
        std::process::exit(1);
    });

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

        // oper task ke ThreadPool
        pool.execute(|| {
            handle_connection(stream);
        });
    }
}

fn handle_connection(mut stream: TcpStream) {
    let buf_reader = BufReader::new(&mut stream);

    let request_line = buf_reader.lines().next().unwrap().unwrap();

    let (status_line, filename) = match &request_line[..] {
        "GET / HTTP/1.1" => ("HTTP/1.1 200 OK", "hello.html"),
        "GET /sleep HTTP/1.1" => {
            thread::sleep(Duration::from_secs(10));
            ("HTTP/1.1 200 OK", "hello.html")
        }
        _ => ("HTTP/1.1 404 NOT FOUND", "404.html"),
    };

    let contents = fs::read_to_string(filename).unwrap();
    let length = contents.len();

    let response = format!("{status_line}\r\nContent-Length: {length}\r\n\r\n{contents}");

    stream.write_all(response.as_bytes()).unwrap();
}