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h2cache.cpp

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 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
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 * fax: ++49-241-80-22242
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 * www: http://www.openwns.org
 * _____________________________________________________________________________
 *
 * openWNS is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
 *
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 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
 * details.
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#include <RISE/transceiver/cache/h2cache.hpp>
#include <RISE/transceiver/cache/propcacheentry.hpp>
#include <RISE/transceiver/transmitter.hpp>
#include <RISE/transceiver/receiver.hpp>
#include <RISE/transmissionobjects/transmissionobject.hpp>
#include <RISE/antenna/Antenna.hpp>
#include <RISE/stations/station.hpp>
#include <RISE/manager/systemmanager.hpp>
#include <WNS/PowerRatio.hpp>

using namespace std;
using namespace __gnu_cxx;
using namespace rise;

H2Cache::H2Cache(receiver::ReceiverInterface* r)
    : PropagationCache(r, "H2"),
      pathlossShadowGain(CacheVector()),
      transmitters(TransmitterContainer())
{
    pathlossShadowGain = std::vector<PropCacheEntry>(0);
}

H2Cache::~H2Cache()
{
}

wns::Ratio H2Cache::getLoss(Transmitter* t, double freq)
{
    unsigned long int tId = t->getTransmitterId();
    if(!transmitters.contains(t))
        attach(t, tId);
    PropCacheEntry& cacheEntry = pathlossShadowGain.at(tId);
    if(!cacheEntry.isValid()) {
        updatePropEntry(cacheEntry,
                        t, 
                        freq);
    }
    return cacheEntry.getTotalLoss();
}


void H2Cache::attach(Transmitter* t, unsigned long int tId) {
    
    transmitters.push_back(t);
    if(pathlossShadowGain.size() <= tId)
    {
        unsigned long int numTx = tId+1;
        pathlossShadowGain = std::vector<PropCacheEntry>(numTx);
    }
}

void H2Cache::invalidatePropagationEntries(Transmitter* t)
{
    unsigned long int tId = t->getTransmitterId();
    if(tId >= pathlossShadowGain.size())
        attach(t, tId);
    pathlossShadowGain.at(tId).setValid(false);
}

void H2Cache::invalidatePropagationEntries()
{
    TransmitterIterator itrTEnd = transmitters.end();
    for(TransmitterIterator itrT = transmitters.begin();
        itrT!=itrTEnd;
        ++itrT)
    {
        unsigned long int tId = (*itrT)->getTransmitterId();
        pathlossShadowGain.at(tId).setValid(false);
    }
}

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