fully implement and deploy explicit x-thread signal connection syntax (testing comes next)

git-svn-id: svn://localhost/ardour2/branches/3.0@6379 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 48 insertions, 0 deletions

diff --git a/libs/pbd/pbd/event_loop.h b/libs/pbd/pbd/event_loop.h
new file mode 100644
index 0000000000..be98fcd852
--- /dev/null
+++ b/libs/pbd/pbd/event_loop.h
@@ -0,0 +1,48 @@
+/*
+    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
+    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_event_loop_h__
+#define __pbd_event_loop_h__
+
+#include <boost/function.hpp>
+#include <boost/bind.hpp> /* we don't need this here, but anything calling call_slot() probably will, so this is convenient */
+#include <glibmm/thread.h>
+
+namespace PBD
+{
+
+class EventLoop 
+{
+  public:
+	EventLoop() {}
+	virtual ~EventLoop() {}
+
+	virtual void call_slot (const boost::function<void()>&) = 0;
+
+	static EventLoop* get_event_loop_for_thread();
+	static void set_event_loop_for_thread (EventLoop* ui);
+
+  private:
+	static Glib::StaticPrivate<EventLoop> thread_event_loop;
+
+};
+
+}
+
+#endif /* __pbd_event_loop_h__ */