Respond to JACK session quit request. Fixes #3491.

git-svn-id: svn://localhost/ardour2/branches/3.0@7878 d708f5d6-7413-0410-9779-e7cbd77b26cf

gtk2_ardour/ardour_ui.cc

@@ -260,6 +260,10 @@ ARDOUR_UI::ARDOUR_UI (int *argcp, char **argvp[])
 
 	ARDOUR::Session::AskAboutSampleRateMismatch.connect_same_thread (forever_connections, boost::bind (&ARDOUR_UI::sr_mismatch_dialog, this, _1, _2));
 
+	/* handle requests to quit (coming from JACK session) */
+	
+	ARDOUR::Session::Quit.connect (forever_connections, MISSING_INVALIDATOR, ui_bind (&ARDOUR_UI::finish, this), gui_context ());
+
 	/* lets get this party started */
 
 	try {

libs/ardour/ardour/session.h

@@ -785,6 +785,9 @@ class Session : public PBD::StatefulDestructible, public PBD::ScopedConnectionLi
 	void request_resume_timecode_transmission ();
 	bool timecode_transmission_suspended () const;
 
+	/** Emitted when the session wants Ardour to quit */
+	static PBD::Signal0<void> Quit;
+
   protected:
 	friend class AudioEngine;
 	void set_block_size (nframes_t nframes);

libs/ardour/session.cc

@@ -125,6 +125,7 @@ PBD::Signal0<void> Session::AutoBindingOn;
 PBD::Signal0<void> Session::AutoBindingOff;
 PBD::Signal2<void,std::string, std::string> Session::Exported;
 PBD::Signal1<int,boost::shared_ptr<Playlist> > Session::AskAboutPlaylistDeletion;
+PBD::Signal0<void> Session::Quit;
 
 static void clean_up_session_event (SessionEvent* ev) { delete ev; }
 const SessionEvent::RTeventCallback Session::rt_cleanup (clean_up_session_event);

libs/ardour/session_state.cc

@@ -746,7 +746,7 @@ Session::jack_session_event (jack_session_event_t * event)
 	jack_session_reply (_engine.jack(), event);
 
 	if (event->type == JackSessionSaveAndQuit) {
-                // TODO: make ardour quit.
+		Quit (); /* EMIT SIGNAL */
 	}
 
 	jack_session_event_free( event );