How to detect TCP close?

3

Thank you very much for your reply.

I tried to read with 0-sized buffer as follows.

use std::io::Read;

fn main() -> std::io::Result<()> {
    let l = std::net::TcpListener::bind("127.0.0.1:3000")?;
    loop {
        let (mut stream, _) = l.accept()?;
        println!("new stream: {:?}", stream);
        loop {
            let mut buf = [];
            let r = stream.read(&mut buf);
            println!("read result: {:?}", r);
            std::thread::sleep(std::time::Duration::from_secs(1));
        }
    }
}

But, .read() always returns Ok(()) after Ctrl+C.

rust-tcp-close-detection1.mp4.opt