1 files changed, 43 insertions, 0 deletions
diff --git a/include/gnuradio/gr_msg_handler.h b/include/gnuradio/gr_msg_handler.h
new file mode 100644
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+++ b/include/gnuradio/gr_msg_handler.h
@@ -0,0 +1,43 @@
+/* -*- c++ -*- */
+/*
+ * Copyright 2005 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio
+ *
+ * GNU Radio 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 3, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 GNU Radio; see the file COPYING.  If not, write to
+ * the Free Software Foundation, Inc., 51 Franklin Street,
+ * Boston, MA 02110-1301, USA.
+ */
+#ifndef INCLUDED_GR_MSG_HANDLER_H
+#define INCLUDED_GR_MSG_HANDLER_H
+
+#include <gr_core_api.h>
+#include <gr_message.h>
+
+class gr_msg_handler;
+typedef boost::shared_ptr<gr_msg_handler> gr_msg_handler_sptr;
+
+/*!
+ * \brief abstract class of message handlers
+ * \ingroup base
+ */
+class GR_CORE_API gr_msg_handler {
+public:
+  virtual ~gr_msg_handler ();
+
+  //! handle \p msg
+  virtual void handle (gr_message_sptr msg) = 0;
+};
+
+#endif /* INCLUDED_GR_MSG_HANDLER_H */