MIDI binding maps make their debut

[ardour.git] / libs / ardour / port.cc

diff --git a/libs/ardour/port.cc b/libs/ardour/port.cc
index 4b4f0a939ad5d55da3c66cfa7014b76800bd4ea4..5897015b273baed20c172da4b1bb1decbf92933d 100644 (file)
--- a/libs/ardour/port.cc
+++ b/libs/ardour/port.cc
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2009 Paul Davis 
+    Copyright (C) 2009 Paul Davis
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -46,11 +46,11 @@ Port::Port (std::string const & n, DataType t, Flags f)
 
        /* Unfortunately we have to pass the DataType into this constructor so that we can
           create the right kind of JACK port; aside from this we'll use the virtual function type ()
-          to establish type. 
+          to establish type.
        */
 
        assert (_name.find_first_of (':') == std::string::npos);
-       
+
        if ((_jack_port = jack_port_register (_engine->jack (), _name.c_str (), t.to_jack_type (), _flags, 0)) == 0) {
                throw failed_constructor ();
        }
@@ -99,8 +99,9 @@ Port::get_connections (std::vector<std::string> & c) const
                        c.push_back (jc[i]);
                        ++n;
                }
+               free (jc);
        }
-       
+
        return n;
 }
 
@@ -113,13 +114,13 @@ Port::connect (std::string const & other)
        std::string const this_shrt = _engine->make_port_name_non_relative (_name);
 
        int r = 0;
-               
+
        if (sends_output ()) {
                r = jack_connect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
        } else {
                r = jack_connect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str());
        }
-       
+
        if (r == 0) {
                _connections.insert (other);
        }
@@ -136,17 +137,17 @@ Port::disconnect (std::string const & other)
        std::string const this_shrt = _engine->make_port_name_non_relative (_name);
 
        int r = 0;
-       
+
        if (sends_output ()) {
                r = jack_disconnect (_engine->jack (), this_shrt.c_str (), other_shrt.c_str ());
        } else {
                r = jack_disconnect (_engine->jack (), other_shrt.c_str (), this_shrt.c_str ());
        }
-       
+
        if (r == 0) {
                _connections.erase (other);
        }
-       
+
 return r;
 }
 
@@ -200,22 +201,40 @@ Port::reset ()
 void
 Port::recompute_total_latency () const
 {
-#ifdef HAVE_JACK_RECOMPUTE_LATENCY     
-       jack_recompute_total_latency (_engine->jack (), _jack_port);
-#endif 
+#ifdef HAVE_JACK_RECOMPUTE_LATENCY
+       jack_client_t* jack = _engine->jack();
+
+       if (!jack) {
+               return;
+       }
+
+       jack_recompute_total_latency (jack, _jack_port);
+#endif
 }
 
 nframes_t
 Port::total_latency () const
 {
-       return jack_port_get_total_latency (_engine->jack (), _jack_port);
+       jack_client_t* jack = _engine->jack();
+
+       if (!jack) {
+               return 0;
+       }
+
+       return jack_port_get_total_latency (jack, _jack_port);
 }
 
 int
 Port::reestablish ()
 {
+       jack_client_t* jack = _engine->jack();
+
+       if (!jack) {
+               return -1;
+       }
+
        cerr << "RE-REGISTER: " << _name.c_str() << endl;
-       _jack_port = jack_port_register (_engine->jack(), _name.c_str(), type().to_jack_type(), _flags, 0);
+       _jack_port = jack_port_register (jack, _name.c_str(), type().to_jack_type(), _flags, 0);
 
        if (_jack_port == 0) {
                PBD::error << string_compose (_("could not reregister %1"), _name) << endmsg;
@@ -253,7 +272,7 @@ Port::set_name (std::string const & n)
        int const r = jack_port_set_name (_jack_port, n.c_str());
 
        if (r == 0) {
-               _name = n; 
+               _name = n;
        }
 
        return r;