⭐ add udp_over_tcp server to PTTH_QUIC relay server

maybe it'll work

crates/ptth_quic/src/executable_relay_server.rs

@@ -22,7 +22,7 @@ pub struct Opt {
 	#[structopt (long)]
 	listen_addr: Option <String>,
 	#[structopt (long)]
-	tcp_listen_addr: Option <String>,
+	tcp_listen_port: Option <u16>,
 }
 
 pub async fn main (opt: Opt) -> anyhow::Result <()> 
@@ -115,9 +115,37 @@ pub async fn main (opt: Opt) -> anyhow::Result <()>
 	
 	debug! ("Serving HTTP on {:?}", http_addr);
 	
-	task_quic_server.await??;
-	task_http_server.await??;
-	task_direc_server.await??;
+	let task_tcp_over_udp_server = if let Some (tcp_listen_port) = opt.tcp_listen_port {
+		tokio::spawn (async move {
+			let cfg = udp_over_tcp::server::Config {
+				tcp_port: tcp_listen_port,
+				udp_port: listen_addr.port (),
+			};
+			udp_over_tcp::server::main (cfg).await
+		})
+	}
+	else {
+		tokio::spawn (async move {
+			loop {
+				tokio::time::sleep (Duration::from_secs (3_600)).await;
+			}
+		})
+	};
+	
+	tokio::select! {
+		_val = task_quic_server => {
+			eprintln! ("QUIC relay server exited, exiting");
+		},
+		_val = task_http_server => {
+			eprintln! ("HTTP server exited, exiting");
+		},
+		_val = task_direc_server => {
+			eprintln! ("PTTH_DIREC server exited, exiting");
+		},
+		_val = task_tcp_over_udp_server => {
+			eprintln! ("tcp_over_udp server exited, exiting");
+		}
+	}
 	
 	Ok (())
 }

crates/udp_over_tcp/src/lib.rs

@@ -0,0 +1,4 @@
+pub mod client;
+pub mod server;
+
+mod loops;