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diff --git a/gr-blocks/lib/random_pdu_impl.h b/gr-blocks/lib/random_pdu_impl.h
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+++ b/gr-blocks/lib/random_pdu_impl.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2013 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_BLOCKS_SOCKET_PDU_IMPL_H
+#define INCLUDED_BLOCKS_RANDOM_PDU_IMPL_H
+
+#include <blocks/random_pdu.h>
+#include <boost/random.hpp>
+#include <boost/generator_iterator.hpp>
+
+namespace gr {
+  namespace blocks {
+
+    class random_pdu_impl : public random_pdu
+    {
+    private:
+      boost::mt19937 d_rng;
+      boost::uniform_int<> d_urange;
+      boost::uniform_int<> d_brange;
+      boost::variate_generator< boost::mt19937, boost::uniform_int<> > d_rvar; // pdu length
+      boost::variate_generator< boost::mt19937, boost::uniform_int<> > d_bvar; // pdu contents
+      
+    public:
+      random_pdu_impl(int min_items, int max_items);
+
+      bool start();
+      void output_random();
+      void generate_pdu(pmt::pmt_t msg) { output_random(); }
+      void generate_pdu() { output_random(); }
+    };
+
+  } /* namespace blocks */
+} /* namespace gr */
+
+#endif /* INCLUDED_BLOCKS_RANDOM_PDU_IMPL_H */