/* -*- 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_RANDOM_PDU_IMPL_H
#define INCLUDED_BLOCKS_RANDOM_PDU_IMPL_H

#include <gnuradio/blocks/random_pdu.h>
#include <boost/generator_iterator.hpp>
#include <boost/random.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
    unsigned char d_mask;
    int d_length_modulo;

public:
    random_pdu_impl(int min_items,
                    int max_items,
                    unsigned char byte_mask,
                    int length_modulo);

    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 */
