fixed: cpu is working too hard

src/example/ctrl13.rs

@@ -84,7 +84,7 @@ impl ControllerFrame13 for Controller13 {
                     match_fields,
                     &actions,
                     packetin.table_id,
-                    Some(buf_id as u32),
+                    Some(buf_id),
                     stream,
                 );
                 return;

src/openflow/ofp10/tcp_listener.rs

@@ -27,7 +27,7 @@ pub fn tcp_listener_handler(
                                 ctrl.request_handler(&mut buffer, &mut stream);
                             }
                             Ok(_) => {
-                                continue;
+                                break;
                             }
                             Err(_) => {
                                 println!("cannot read packet");

src/openflow/ofp13/tcp_listener.rs

@@ -27,7 +27,7 @@ pub fn tcp_listener_handler(
                                 ctrl.request_handler(&mut buffer, &mut stream);
                             }
                             Ok(_) => {
-                                continue;
+                                break;
                             }
                             Err(_) => {
                                 println!("cannot read packet");