1 files changed, 71 insertions, 0 deletions
diff --git a/libs/ardour/jack_portengine.cc b/libs/ardour/jack_portengine.cc
index f830785bae..99b0bd2b9a 100644
--- a/libs/ardour/jack_portengine.cc
+++ b/libs/ardour/jack_portengine.cc
@@ -1,3 +1,74 @@
+JACKPortEngine::init ()
+{
+        jack_set_port_registration_callback (_priv_jack, _registration_callback, this);
+        jack_set_port_connect_callback (_priv_jack, _connect_callback, this);
+        jack_set_graph_order_callback (_priv_jack, _graph_order_callback, this);
+}
+
+void
+JACKPortEngine::_registration_callback (jack_port_id_t /*id*/, int /*reg*/, void* arg)
+{
+	JACKPortEngine* pm = static_cast<JACKAudioBackend*> (arg);
+
+	if (!pm->port_remove_in_progress) {
+		pm->engine.PortRegisteredOrUnregistered (); /* EMIT SIGNAL */
+	}
+}
+
+void
+JACKPortEngine::_connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn, void* arg)
+{
+	JACKPortEngine* pm = static_cast<JACKAudioBackend*> (arg);
+	pm->connect_callback (id_a, id_b, conn);
+}
+
+void
+JACKPortEngine::connect_callback (jack_port_id_t id_a, jack_port_id_t id_b, int conn)
+{
+	if (port_remove_in_progress) {
+		return;
+	}
+
+	GET_PRIVATE_JACK_POINTER (_priv_jack);
+
+	jack_port_t* jack_port_a = jack_port_by_id (_priv_jack, id_a);
+	jack_port_t* jack_port_b = jack_port_by_id (_priv_jack, id_b);
+
+	boost::shared_ptr<Port> port_a;
+	boost::shared_ptr<Port> port_b;
+	Ports::iterator x;
+	boost::shared_ptr<Ports> pr = ports.reader ();
+
+	x = pr->find (make_port_name_relative (jack_port_name (jack_port_a)));
+	if (x != pr->end()) {
+		port_a = x->second;
+	}
+
+	x = pr->find (make_port_name_relative (jack_port_name (jack_port_b)));
+	if (x != pr->end()) {
+		port_b = x->second;
+	}
+
+	PortConnectedOrDisconnected (
+		port_a, jack_port_name (jack_port_a),
+		port_b, jack_port_name (jack_port_b),
+		conn == 0 ? false : true
+		); /* EMIT SIGNAL */
+}
+
+int
+JACKPortEngine::_graph_order_callback (void *arg)
+{
+	JACKPortEngine* pm = static_cast<JACKAudioBackend*> (arg);
+
+	if (pm->connected() && !pm->port_remove_in_progress) {
+		pm->engine.GraphReordered (); /* EMIT SIGNAL */
+	}
+	
+	return 0;
+}
+
+
 JACKPortEngine::physically_connected (PortHandle p)
 {
 	jack_port_t* _jack_port = (jack_port_t*) p;