remove compile errors (still will not link and JACKPortEngine is not close to done)

libs/ardour/ardour/audioengine.h

@@ -105,6 +105,7 @@ public:
     bool           get_sync_offset (pframes_t& offset) const;
     int            create_process_thread (boost::function<void()> func, pthread_t*, size_t stacksize);
     bool           is_realtime() const;
+    bool           connected() const;
 
     /* END BACKEND PROXY API */
 

libs/ardour/ardour/port_engine.h

@@ -94,6 +94,8 @@ class PortEngine {
     virtual std::string get_port_name (PortHandle) const = 0;
     virtual PortHandle* get_port_by_name (const std::string&) const = 0;
 
+    DataType port_data_type (PortHandle) const;
+
     virtual std::string make_port_name_relative (const std::string& name) const = 0;
     virtual std::string make_port_name_non_relative (const std::string& name) const = 0;
     virtual bool        port_is_mine (const std::string& fullname) const = 0;

libs/ardour/ardour/port_manager.h

@@ -58,7 +58,7 @@ class PortManager
     int  connect (const std::string& source, const std::string& destination);
     int  disconnect (const std::string& source, const std::string& destination);
     int  disconnect (boost::shared_ptr<Port>);
-    bool connected (const std::string&);
+    bool has_connections (const std::string&);
     int  reestablish_ports ();
     int  reconnect_ports ();
 
@@ -71,7 +71,7 @@ class PortManager
     void port_renamed (const std::string&, const std::string&);
     ChanCount n_physical_outputs () const;
     ChanCount n_physical_inputs () const;
-    const char ** get_ports (const std::string& port_name_pattern, const std::string& type_name_pattern, uint32_t flags);
+    const char ** get_ports (const std::string& port_name_pattern, DataType type, uint32_t flags);
     
     void remove_all_ports ();
     

libs/ardour/audioengine.cc

@@ -668,6 +668,16 @@ AudioEngine::is_realtime() const
 	return _backend->is_realtime();
 }
 
+bool
+AudioEngine::connected() const 
+{
+	if (!_backend) {
+		return false;
+	}
+
+	return _backend->connected();
+}
+
 void
 AudioEngine::transport_start ()
 {

libs/ardour/bundle.cc

@@ -459,7 +459,7 @@ Bundle::connected_to_anything (AudioEngine& engine)
 			   rather than doing it with Port.
 			*/
 
-			if (engine.connected (ports[j])) {
+			if (engine.has_connections (ports[j])) {
 				return true;
 			}
 		}

libs/ardour/jack_portengine.cc

@@ -98,3 +98,17 @@ JACKPortEngine::physically_connected (PortHandle p)
 
 	return false;
 }
+
+DataType
+JACKPortEngine::port_data_type (PortHandle p)
+{
+	const char* t = jack_port_type (p);
+
+	if (strcmp (p, JACK_DEFAULT_AUDIO_TYPE) == 0) {
+		return DataType::AUDIO;
+	} else if (strcmp (p, JACK_DEFAULT_MIDI_TYPE) == 0) {
+		return DataType::MIDI;
+	}
+
+	return DataType::NIL;
+}

libs/ardour/port_manager.cc

@@ -263,7 +263,7 @@ AudioEngine::port_renamed (const std::string& old_relative_name, const std::stri
 }
 
 const char **
-AudioEngine::get_ports (const string& port_name_pattern, const string& type_name_pattern, uint32_t flags)
+AudioEngine::get_ports (const string& port_name_pattern, DataType type, uint32_t flags)
 {
 	GET_PRIVATE_JACK_POINTER_RET (_jack,0);
 	if (!_running) {
@@ -274,7 +274,21 @@ AudioEngine::get_ports (const string& port_name_pattern, const string& type_name
 			return 0;
 		}
 	}
-	return jack_get_ports (_priv_jack, port_name_pattern.c_str(), type_name_pattern.c_str(), flags);
+
+	const char* jack_type_string;
+
+	switch (type) {
+	case DataType::AUDIO:
+		jack_type_string = JACK_DEFAULT_AUDIO_TYPE;
+		break;
+	case DataType::AUDIO:
+		jack_type_string = JACK_DEFAULT_MIDI_TYPE;
+		break;
+	case DataType::NIL
+		return 0;
+	}
+
+	return jack_get_ports (_priv_jack, port_name_pattern.c_str(), jack_type_string, flags);
 }
 
 void