/* -*- c++ -*- */
/*
 * Copyright 2012-2013 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_GR_MESSAGE_STROBE_RANDOM_IMPL_H
#define INCLUDED_GR_MESSAGE_STROBE_RANDOM_IMPL_H

#include <gnuradio/blocks/message_strobe_random.h>
#include <boost/random/variate_generator.hpp>
#include <boost/random/mersenne_twister.hpp>
#include <boost/random/poisson_distribution.hpp>
#include <boost/random/normal_distribution.hpp>
#include <boost/random/uniform_real.hpp>

namespace gr {
  namespace blocks {

    class BLOCKS_API message_strobe_random_impl : public message_strobe_random
    {
    private:
      boost::shared_ptr<gr::thread::thread> d_thread;
      bool d_finished;
      float d_mean_ms;
      float d_std_ms;
      message_strobe_random_distribution_t d_dist;
      pmt::pmt_t d_msg;
      void run();
      float next_delay();

      boost::mt19937 d_rng;
      boost::shared_ptr< boost::variate_generator <boost::mt19937, boost::poisson_distribution<> > > d_variate_poisson;
      boost::shared_ptr< boost::variate_generator <boost::mt19937, boost::normal_distribution<> > > d_variate_normal;
      boost::shared_ptr< boost::variate_generator <boost::mt19937, boost::uniform_real<> > > d_variate_uniform;

      void update_dist();

    public:
      message_strobe_random_impl(pmt::pmt_t msg, message_strobe_random_distribution_t dist, float mean_ms, float std_ms);
      ~message_strobe_random_impl();

      void set_msg(pmt::pmt_t msg) { d_msg = msg; }
      pmt::pmt_t msg() const { return d_msg; }
      void set_mean(float mean_ms) { d_mean_ms = mean_ms; update_dist(); }
      float mean() const { return d_mean_ms; }
      void set_std(float std_ms) { d_std_ms = std_ms; update_dist(); }
      float std() const { return d_std_ms; }
      void set_dist(message_strobe_random_distribution_t dist){ d_dist = dist; }
      message_strobe_random_distribution_t dist() const { return d_dist; }

    };

  } /* namespace blocks */
} /* namespace gr */

#endif /* INCLUDED_GR_MESSAGE_STROBE_RANDOM_IMPL_H */