Update receiver monitor connection example (#384)

* Update Receiver-Monitor connection activation example
* Update Development/nmos/control_protocol_handlers.cpp
---------

Co-authored-by: jonathan-r-thorpe <[email protected]>

Author: lo-simon

Development/nmos/control_protocol_handlers.cpp

@@ -77,21 +77,24 @@ namespace nmos
             auto found = find_control_protocol_resource(resources, nmos::types::nc_receiver_monitor, connection_resource.id);
             if (resources.end() != found && nc_receiver_monitor_class_id == details::parse_nc_class_id(nmos::fields::nc::class_id(found->data)))
             {
-                // update receiver-monitor's connectionStatus propertry
+                // update receiver-monitor's connectionStatus and payloadStatus properties
 
                 const auto active = nmos::fields::master_enable(nmos::fields::endpoint_active(connection_resource.data));
-                const web::json::value value = active ? nc_connection_status::connected : nc_connection_status::disconnected;
+                const web::json::value connection_status = active ? nc_connection_status::connected : nc_connection_status::disconnected;
+                const web::json::value payload_status = active ? nc_payload_status::payload_ok : nc_payload_status::undefined;
 
-                // hmm, maybe updating connectionStatusMessage, payloadStatus, and payloadStatusMessage too
+                // hmm, maybe updating connectionStatusMessage and payloadStatusMessage too
 
                 const auto property_changed_event = make_property_changed_event(nmos::fields::nc::oid(found->data),
                 {
-                    { nc_receiver_monitor_connection_status_property_id, nc_property_change_type::type::value_changed, value }
+                    { nc_receiver_monitor_connection_status_property_id, nc_property_change_type::type::value_changed, connection_status },
+                    { nc_receiver_monitor_payload_status_property_id, nc_property_change_type::type::value_changed, payload_status }
                 });
 
                 modify_control_protocol_resource(resources, found->id, [&](nmos::resource& resource)
                 {
-                    resource.data[nmos::fields::nc::connection_status] = value;
+                    resource.data[nmos::fields::nc::connection_status] = connection_status;
+                    resource.data[nmos::fields::nc::payload_status] = payload_status;
 
                 }, property_changed_event);
             }

Development/nmos/control_protocol_ws_api.h

@@ -29,7 +29,7 @@ namespace nmos
         };
     }
 
-    void send_control_protocol_ws_messages_thread(web::websockets::experimental::listener::websocket_listener& listener, nmos::node_model& model, nmos::websockets& websockets, slog::base_gate& gate_);
+    void send_control_protocol_ws_messages_thread(web::websockets::experimental::listener::websocket_listener& listener, nmos::node_model& model, nmos::websockets& websockets, slog::base_gate& gate);
 }
 
 #endif