cleanup up cleanup at session destruction; clarify the meaning of 3 signals (DropRefe...

[ardour.git] / libs / pbd / pbd / destructible.h

diff --git a/libs/pbd/pbd/destructible.h b/libs/pbd/pbd/destructible.h
index 126bd04bba4c8d887951a7bcdea0190cd77caf51..8881b45c55116d9f6523d06e6a997c68c780a6ac 100644 (file)
--- a/libs/pbd/pbd/destructible.h
+++ b/libs/pbd/pbd/destructible.h
@@ -1,18 +1,38 @@
+/*
+    Copyright (C) 2000-2007 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
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
 #ifndef __pbd_destructible_h__
 #define __pbd_destructible_h__
 
-#include <sigc++/signal.h>
+#include "pbd/signals.h"
 
 namespace PBD {
 
 class Destructible {
   public:
-       Destructible() {}
-       virtual ~Destructible () {}
-
-       sigc::signal<void> GoingAway;
+        Destructible() {}
+       virtual ~Destructible () { Destroyed(); }
+       
+       PBD::Signal0<void> Destroyed;
+       PBD::Signal0<void> DropReferences;
 
-       void drop_references () const { GoingAway(); }
+       void drop_references () { DropReferences();  }
 };
 
 }