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2023-10-02 23:51:49 +02:00 · 2023-10-02 23:51:49 +02:00 · 4d760871bd
commit 4d760871bd
parent dc7304874a
3 changed files with 316 additions and 2 deletions
--- a/Cargo.lock
+++ b/Cargo.lock
@ -2,6 +2,285 @@
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--- a/Cargo.toml
+++ b/Cargo.toml
@ -6,3 +6,4 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

 [dependencies]
+chrono = "0.4.31"
--- a/src/main.rs
+++ b/src/main.rs
@ -1,7 +1,41 @@
-use std::net::UdpSocket;
+use chrono::{DateTime, Local};
+use std::{collections::HashSet, net::UdpSocket};
+
+const MAX_CLIENTS: usize = 10;
+const CLIENT_TIMEOUT: u32 = 300;
+
+#[derive(Hash, Eq, PartialEq, Debug)]
+struct Client {
+    name: String,
+    time: DateTime<Local>,
+}

 fn main() -> std::io::Result<()> {
    let socket = UdpSocket::bind("0.0.0.0:7373")?;
+    socket
+        .set_read_timeout(None)
+        .expect("Could not set read timeout");

-    Ok(())
+    let mut receivers: HashSet<Client> = HashSet::new();
+
+    loop {
+        let mut buf = [0; 64];
+        let (number_of_bytes, src_addr) = socket.recv_from(&mut buf).expect("Didn't receive data");
+        let client_addr = src_addr.to_string();
+
+        if receivers.iter().any(|x| x.name == client_addr) {
+        } else {
+            if receivers.len() < MAX_CLIENTS {
+                let time = Local::now();
+                println!("New client: {client_addr}");
+                receivers.insert(Client {
+                    name: client_addr,
+                    time,
+                });
+                // TODO: welcome
+            } else {
+                // TODO: reject
+            }
+        }
+    }
 }