noiserecorder.h

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/*
 * Copyright (c) 2013-2014 - Adjacent Link LLC, Bridgewater, New Jersey
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * * Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 * * Neither the name of Adjacent Link LLC nor the names of its
 *   contributors may be used to endorse or promote products derived
 *   from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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 */

#ifndef EMANENOISERECORDER_HEADER_
#define EMANENOISERECORDER_HEADER_

#include <chrono>
#include <cstring>

#include "wheel.h"
#include "emane/types.h"

#include <map>

namespace EMANE
{
  class NoiseRecorder
  {
  public:
    NoiseRecorder(const Microseconds & bin,
                  const Microseconds & maxOffset,
                  const Microseconds & maxPropagation,
                  const Microseconds & maxDuration,
                  double dRxSensitivityMilliWatt_);
     
    std::pair<TimePoint,TimePoint>
    update(const TimePoint & now,
           const TimePoint & txTime,
           const Microseconds & offset,
           const Microseconds & propagation,
           const Microseconds & duration,
           double dRxPower,
           const std::vector<NEMId> & transmitters);
    
    std::pair<std::vector<double>, TimePoint> 
    get(const TimePoint & now,
        const Microseconds & duration = Microseconds::zero(),
        const TimePoint & startTime = TimePoint::min());
    
    // dump the entire wheel for test-only-purposes
    std::vector<double> dump() const;

  private:
    const Microseconds::rep totalWindowBins_;
    const Microseconds::rep totalWheelBins_;
    const Microseconds::rep binSizeMicroseconds_;

    Wheel<double> wheel_;
    double dRxSensitivityMilliWatt_;
    Microseconds::rep maxEndOfReceptionBin_;
    Microseconds::rep minStartOfReceptionBin_;

    using NEMEoRBinMap = std::map<NEMId,Microseconds::rep>;
    NEMEoRBinMap nemEoRBinMap_;

    Microseconds::rep timepointToBin(const TimePoint & tp, bool bAdjust = false);
  };
}


#endif //EMANENOISERECORDER_HEADER_