Change single connection mode to CLI arg instead of forced in debug mode

rc_chat_room/run_debug.sh

@@ -1,3 +1,3 @@
 #!/bin/bash
 
-RUST_BACKTRACE=1 RUST_LOG=debug cargo run
+RUST_BACKTRACE=1 RUST_LOG=debug cargo run -- -1

rc_chat_room/src/cli.rs

@@ -11,9 +11,9 @@ pub struct CliArgs {
     #[arg(long, default_value_t = {"127.0.0.1".to_string()})]
     pub ip: String,
 
-    /// Socket read tries before giving up (0 to never give up)
-    #[arg(long, default_value_t = 5)]
-    pub retries: usize,
+    /// Handle one connection and then exit
+    #[arg(short = '1', long)]
+    pub once: bool,
 }
 
 impl CliArgs {

rc_chat_room/src/main.rs

@@ -18,26 +18,26 @@ async fn main() -> std::io::Result<()> {
     let args = cli::CliArgs::get();
     log::debug!("Got cli args {:?}", args);
 
-    let server = polariton_server::Server::new(operations::handler());
+    let server = std::sync::Arc::new(polariton_server::Server::new(operations::handler()));
 
     let ip_addr: std::net::IpAddr = args.ip.parse().expect("Invalid IP address");
 
     let listener = net::TcpListener::bind(std::net::SocketAddr::new(ip_addr, args.port)).await?;
 
-    #[cfg(not(debug_assertions))]
-    loop {
+    if args.once {
+        log::warn!("Handling first connection and then exiting");
         let (socket, address) = listener.accept().await?;
-        tokio::spawn(process_socket(socket, address, &server));
-    }
-    #[cfg(debug_assertions)]
-    {
-        let (socket, address) = listener.accept().await?;
-        process_socket(socket, address, &server).await;
+        process_socket(socket, address, server).await;
         Ok(())
+    } else {
+        loop {
+            let (socket, address) = listener.accept().await?;
+            tokio::spawn(process_socket(socket, address, server.clone()));
+        }
     }
 }
 
-async fn process_socket(mut socket: net::TcpStream, address: std::net::SocketAddr, server: &polariton_server::Server<crate::UserTy>) {
+async fn process_socket(mut socket: net::TcpStream, address: std::net::SocketAddr, server: std::sync::Arc<polariton_server::Server<crate::UserTy>>) {
     log::debug!("Accepting connection from address {}", address);
     let enc = match do_connect_handshake(&mut socket).await {
         Some(x) => x,