nemlayerstack.cc

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/*
 * Copyright (c) 2013 - Adjacent Link LLC, Bridgewater, New Jersey
 * Copyright (c) 2008 - DRS CenGen, LLC, Columbia, Maryland
 * 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 DRS CenGen, 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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 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#include "nemlayerstack.h"

EMANE::NEMLayerStack::NEMLayerStack(){}
    
EMANE::NEMLayerStack::~NEMLayerStack(){}

    
void EMANE::NEMLayerStack::connectLayers(UpstreamTransport * pUpstreamTransport,
                                         DownstreamTransport * pDownstreamTransport)
{
  UpstreamTransport * pCurrentUpstreamTransport = pUpstreamTransport;

  for(auto & pNEMLayer : nemLayers_)
    {
      pCurrentUpstreamTransport->setDownstreamTransport(pNEMLayer.get());
      
      pNEMLayer->setUpstreamTransport(pCurrentUpstreamTransport);

      pCurrentUpstreamTransport = pNEMLayer.get();
    }

  pCurrentUpstreamTransport->setDownstreamTransport(pDownstreamTransport);
  
  pDownstreamTransport->setUpstreamTransport(pCurrentUpstreamTransport);
}


/*   
 *   NEMNetworkAdapter (connectLayers UpstreamTransport * param)
 *   ... --
 *   MAC   |
 *   ...   | - stack addLayer, bottom of stack pushed first.
 *   ...   |     where, ... can be 0 or more shims
 *   PHY   |
 *   ... --
 *   NEMOTAAdapter     (connectLayers DownstreamTransport * param)
 */
void EMANE::NEMLayerStack::addLayer(std::unique_ptr<NEMLayer> & pNEMLayer)
{
  nemLayers_.push_back(std::move(pNEMLayer));
}


// NEMLayers initialized individually by the builder
void EMANE::NEMLayerStack::initialize(Registrar &)
{}
    
// NEMLayers initialized individually by the builder
void EMANE::NEMLayerStack::configure(const ConfigurationUpdate &)
{}
    
void EMANE::NEMLayerStack::start()
{
  std::for_each(nemLayers_.begin(),
                nemLayers_.end(),
                std::bind(&Component::start,std::placeholders::_1));
}

void EMANE::NEMLayerStack::postStart()
{
  std::for_each(nemLayers_.begin(),
                nemLayers_.end(),
                std::bind(&Component::postStart,std::placeholders::_1));
}
    
void EMANE::NEMLayerStack::stop()
{
  std::for_each(nemLayers_.begin(),
                nemLayers_.end(),
                std::bind(&Component::stop,std::placeholders::_1));
}
    
void EMANE::NEMLayerStack::destroy()
  throw()
{
  std::for_each(nemLayers_.begin(),
                nemLayers_.end(),
                std::bind(&Component::destroy,std::placeholders::_1));
}