some basic code

src/server/main.rs

@@ -1,3 +1,35 @@
-fn main() {
-    println!("Hello, world!");
+mod net;
+use std::{net::UdpSocket, process::exit, sync::Arc};
+fn main() -> std::io::Result<()> {
+    {
+        let socket: Arc<UdpSocket> = Arc::new(
+            (|| -> std::io::Result<UdpSocket> {
+                let listen_port: u16 = 60000;
+                match UdpSocket::bind(format!("0.0.0.0:{}", listen_port)) {
+                    Ok(socket) => return Ok(socket),
+                    Err(e) => return Err(e),
+                }
+            })()
+            .expect("Failed to bind to any available port"),
+        );
+
+        let mut buf: [u8; pea_2_pea::BUFFER_SIZE] = [0; pea_2_pea::BUFFER_SIZE];
+        smol::block_on(async {
+            loop {
+                match socket.recv_from(&mut buf) {
+                    Ok((data_length, src)) => {
+                        smol::spawn(net::handle_request(buf, socket.clone(), src, data_length))
+                            .detach();
+                    }
+                    Err(e) => {
+                        eprintln!("Error receiving data: {}", e);
+                        exit(-4);
+                    }
+                }
+            }
+        });
+
+        // socket.send_to(&buf, &src)?;
+    } // the socket is closed here
+    Ok(())
 }