SourceSelector_impl.h

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/* -*- c++ -*- */
/* 
 * Copyright 2019 ghostop14.
 * 
 * This 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.
 * 
 * This software 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 this software; see the file COPYING.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street,
 * Boston, MA 02110-1301, USA.
 */

#ifndef INCLUDED_MESA_SOURCESELECTOR_IMPL_H
#define INCLUDED_MESA_SOURCESELECTOR_IMPL_H

#include <mesa/SourceSelector.h>
#include <chrono>
#include <ctime>

#include <queue>

using namespace std;

namespace gr {
  namespace mesa {
    class SourceSelector_impl : public SourceSelector
    {
     protected:
        boost::mutex d_mutex;
        boost::mutex d_queuemutex;
        float d_holdTime;
                int d_numInputs;
                int d_defaultInput;
                int d_inputBlockSize;
                int d_currentInput;

                // Data queue management
                queue<gr_complex> dataQueue;
                // long maxQueueSize;
                bool limitQueue;

                long minQueueLength;
                long initialDataQueueRequirement;
                bool initialQueueSizeMet;

                // Max Power for each input
                float maxPower[4];

        bool d_startInitialized;
                std::chrono::time_point<std::chrono::steady_clock> lastShifted;

                int maxPowerIndex();
                void queueData(pmt::pmt_t msg);

                int getDataAvailable();

                void sendNewPortMsg(int port);

                virtual void handleMsg(pmt::pmt_t msg, int port);

     public:
      SourceSelector_impl(float holdTime, int numInputs, int defaultInput, int inputBlockSize);
      ~SourceSelector_impl();
      virtual bool stop();

      void handleMsgIn1(pmt::pmt_t msg);
      void handleMsgIn2(pmt::pmt_t msg);
      void handleMsgIn3(pmt::pmt_t msg);
      void handleMsgIn4(pmt::pmt_t msg);

      // Where all the action really happens
      int work(int noutput_items,
         gr_vector_const_void_star &input_items,
         gr_vector_void_star &output_items);
    };

  } // namespace mesa
} // namespace gr

#endif /* INCLUDED_MESA_SOURCESELECTOR_IMPL_H */