Rust中实现基于TCP的网络编程

该示例代码是基于Rust语言实现的TCP网络编程示例，通过建立TCP连接实现客户端和服务器之间的数据传输。通过调用Rust中Socket库的函数实现Socket的创建、绑定和监听，建立TCP连接后，通过线程池进行消息的处理和响应。

use std::net::{TcpListener, TcpStream};
use std::io::{Read, Write};
use std::thread;
use std::sync::Arc;
use std::sync::mpsc::{Receiver, Sender};
use std::sync::mpsc;
use std::thread::spawn;

fn main() {
    let listener = TcpListener::bind("127.0.0.1:8080").unwrap();
    let n_workers = 4;
    let (tx, rx): (Sender<TcpStream>, Receiver<TcpStream>) = mpsc::channel();
    for _ in 0..n_workers {
        let rx = rx.clone();
        spawn(move || {
            for stream in rx.iter() {
                handle_client(stream);
            }
        });
    }
    for stream in listener.incoming() {
        tx.send(stream.unwrap()).unwrap();
    }
}

fn handle_client(mut stream: TcpStream) {
    let mut buf = [0; 512];
    loop {
        let bytes_read = stream.read(&mut buf).unwrap();
        if bytes_read == 0 {
            break;
        }
        stream.write(&buf[..bytes_read]).unwrap();
    }
}

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