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idvectorcache.cpp

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/*******************************************************************************
 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
 * Kopernikusstr. 5, D-52074 Aachen, Germany
 * phone: ++49-241-80-27910,
 * fax: ++49-241-80-22242
 * email: info@openwns.org
 * 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;
 *
 * openWNS 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 Lesser General Public License for more
 * details.
 *
 * You should have received a copy of the GNU Lesser General Public License
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#include <RISE/transceiver/cache/propcacheentry.hpp>
#include <RISE/transceiver/cache/idvectorcache.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 <WNS/Position.hpp>
#include <RISE/manager/systemmanager.hpp>
#include <WNS/PowerRatio.hpp>

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

IdVectorCache::IdVectorCache(receiver::ReceiverInterface* r)
    : PropagationCache(r, "IdVector"),
      pathlossShadowGain(CacheVector())
{}

IdVectorCache::~IdVectorCache()
{}

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

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

}

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

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

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