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hashcache.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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 * _____________________________________________________________________________
 *
 * 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
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#include <RISE/transceiver/cache/hashcache.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>

using namespace std;
using namespace rise;

HashCache::HashCache(ReceiverBase* r)
    :PropagationCache(r, "Hash"),
     propHash(Level1Hash())
{}

HashCache::~HashCache()
{
}

wns::Ratio HashCache::getLoss(Transmitter* t, double f) 
{
    PropCacheEntry& hashEntry = propHash[t][f];
    if(!hashEntry.isValid()){
        updatePropEntry(hashEntry, t, f);
    }
    return hashEntry.getTotalLoss();
}

void HashCache::invalidatePropagationEntries( Transmitter* t)
{

    FrequencyIterator itrFEnd = propHash[t].end();
    for(FrequencyIterator itrF=propHash[t].begin(); itrF!=itrFEnd; ++itrF){
        itrF->second.setValid(false);
    }
}

void HashCache::invalidatePropagationEntries(){

    TransmitterIterator itrTEnd = propHash.end();
    for(TransmitterIterator itrT = propHash.begin(); itrT!=itrTEnd; ++itrT){
        FrequencyIterator itrFEnd = itrT->second.end();
        
        for(FrequencyIterator itrF = itrT->second.begin();itrF!=itrFEnd; ++itrF)
        {
            itrF->second.setValid(false);
        }
    }
}

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