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diff --git a/src/engine/machina/Machine.hpp b/src/engine/machina/Machine.hpp
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+/* This file is part of Machina.
+ * Copyright (C) 2007 Dave Robillard <http://drobilla.net>
+ * 
+ * Machina 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.
+ * 
+ * Machina 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 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.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ */
+
+#ifndef MACHINA_MACHINE_HPP
+#define MACHINA_MACHINE_HPP
+
+#include <vector>
+#include <map>
+#include "raul/SharedPtr.h"
+#include "types.hpp"
+#include "Node.hpp"
+
+namespace Machina {
+
+
+class Machine {
+public:
+	Machine();
+	~Machine();
+
+	// Main context
+	void activate()   { _is_activated = true; }
+	void deactivate() { _is_activated = false; }
+	
+	void add_node(SharedPtr<Node> node);
+
+	// Audio context
+	void            reset();
+	bool            run(FrameCount nframes);
+	
+	// Any context
+	FrameCount time() { return _time; }
+
+private:
+	typedef std::vector<SharedPtr<Node> > Nodes;
+	
+	// Audio context
+	SharedPtr<Node> earliest_node() const;
+	void            exit_node(const SharedPtr<Node>);
+
+	bool       _is_activated;
+	bool       _is_finished;
+	FrameCount _time;
+	Nodes      _nodes;
+};
+
+
+} // namespace Machina
+
+#endif // MACHINA_MACHINE_HPP