satellite-beam-channel-pair.cc

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/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
/*
 * Copyright (c) 2018 CNES
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation;
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 * Author: Mathias Ettinger <mettinger@toulouse.viveris.com>
 */
 
#include "satellite-beam-channel-pair.h"
 
#include "satellite-enums.h"
 
#include "ns3/fatal-error.h"
#include "ns3/log.h"
 
#include <map>
#include <utility>
 
NS_LOG_COMPONENT_DEFINE("SatChannelPair");
 
namespace ns3
{
 
NS_OBJECT_ENSURE_REGISTERED(SatChannelPair);
 
TypeId
SatChannelPair::GetTypeId(void)
{
    static TypeId tid =
        TypeId("ns3::SatChannelPair").SetParent<Object>().AddConstructor<SatChannelPair>();
    return tid;
}
 
SatChannelPair::SatChannelPair()
    : m_frequencies(),
      m_fwdChannels(),
      m_rtnChannels()
{
    NS_LOG_FUNCTION(this);
}
 
SatChannelPair::~SatChannelPair()
{
    NS_LOG_FUNCTION(this);
    m_frequencies.clear();
    m_fwdChannels.clear();
    m_rtnChannels.clear();
}
 
SatChannelPair::ChannelPair_t
SatChannelPair::GetChannelPair(uint32_t satId, uint32_t beamId) const
{
    NS_LOG_FUNCTION(this << beamId);
 
    std::map<std::pair<uint32_t, uint32_t>, std::pair<uint32_t, uint32_t>>::const_iterator
        frequencyIterator = m_frequencies.find(std::make_pair(satId, beamId));
    if (frequencyIterator == m_frequencies.end())
    {
        NS_FATAL_ERROR("No SatChannel stored for this beam");
    }
 
    std::pair<uint32_t, uint32_t> frequenciesIds = frequencyIterator->second;
 
    return std::make_pair(GetForwardChannel(satId, frequenciesIds.first),
                          GetReturnChannel(satId, frequenciesIds.second));
}
 
Ptr<SatChannel>
SatChannelPair::GetForwardChannel(uint32_t satId, uint32_t frequencyId) const
{
    std::map<std::pair<uint32_t, uint32_t>, Ptr<SatChannel>>::const_iterator channelIterator =
        m_fwdChannels.find(std::make_pair(satId, frequencyId));
    if (channelIterator == m_fwdChannels.end())
    {
        NS_FATAL_ERROR("No SatChannel stored for the forward frequency "
                       << frequencyId << " and satellite " << satId);
    }
 
    return channelIterator->second;
}
 
Ptr<SatChannel>
SatChannelPair::GetReturnChannel(uint32_t satId, uint32_t frequencyId) const
{
    std::map<std::pair<uint32_t, uint32_t>, Ptr<SatChannel>>::const_iterator channelIterator =
        m_rtnChannels.find(std::make_pair(satId, frequencyId));
    if (channelIterator == m_rtnChannels.end())
    {
        NS_FATAL_ERROR("No SatChannel stored for the return frequency "
                       << frequencyId << " and satellite " << satId);
    }
 
    return channelIterator->second;
}
 
bool
SatChannelPair::HasFwdChannel(uint32_t satId, uint32_t frequencyId) const
{
    NS_LOG_FUNCTION(this << frequencyId);
 
    std::map<std::pair<uint32_t, uint32_t>, Ptr<SatChannel>>::const_iterator channel =
        m_fwdChannels.find(std::make_pair(satId, frequencyId));
    return channel != m_fwdChannels.end();
}
 
bool
SatChannelPair::HasRtnChannel(uint32_t satId, uint32_t frequencyId) const
{
    NS_LOG_FUNCTION(this << frequencyId);
 
    std::map<std::pair<uint32_t, uint32_t>, Ptr<SatChannel>>::const_iterator channel =
        m_rtnChannels.find(std::make_pair(satId, frequencyId));
    return channel != m_rtnChannels.end();
}
 
void
SatChannelPair::UpdateBeamsForFrequency(uint32_t satId,
                                        uint32_t beamId,
                                        uint32_t fwdFrequencyId,
                                        uint32_t rtnFrequencyId)
{
    NS_LOG_FUNCTION(this << satId << beamId << fwdFrequencyId << rtnFrequencyId);
 
    std::pair<uint32_t, uint32_t> frequenciesIds = std::make_pair(fwdFrequencyId, rtnFrequencyId);
    std::pair<std::pair<uint32_t, uint32_t>, std::pair<uint32_t, uint32_t>> frequencyKey =
        std::make_pair(std::make_pair(satId, beamId), frequenciesIds);
    std::pair<std::map<std::pair<uint32_t, uint32_t>, std::pair<uint32_t, uint32_t>>::iterator,
              bool>
        frequencyCreated = m_frequencies.insert(frequencyKey);
    if (!frequencyCreated.second)
    {
        NS_FATAL_ERROR("SatChannel pair already created for this beam");
    }
}
 
void
SatChannelPair::StoreChannelPair(uint32_t satId,
                                 uint32_t beamId,
                                 uint32_t fwdFrequencyId,
                                 Ptr<SatChannel> fwdChannel,
                                 uint32_t rtnFrequencyId,
                                 Ptr<SatChannel> rtnChannel)
{
    NS_LOG_FUNCTION(this << satId << beamId << fwdFrequencyId << fwdChannel << rtnFrequencyId
                         << rtnChannel);
 
    std::map<std::pair<uint32_t, uint32_t>, Ptr<SatChannel>>::iterator fwdChannelIterator =
        m_fwdChannels.find(std::make_pair(satId, fwdFrequencyId));
    if (fwdChannelIterator != m_fwdChannels.end() && fwdChannelIterator->second != fwdChannel)
    {
        NS_FATAL_ERROR("SatChannel already created for the forward frequency " << fwdFrequencyId);
    }
 
    std::map<std::pair<uint32_t, uint32_t>, Ptr<SatChannel>>::iterator rtnChannelIterator =
        m_rtnChannels.find(std::make_pair(satId, rtnFrequencyId));
    if (rtnChannelIterator != m_rtnChannels.end() && rtnChannelIterator->second != rtnChannel)
    {
        NS_FATAL_ERROR("SatChannel already created for the return frequency " << rtnFrequencyId);
    }
 
    m_fwdChannels.emplace(std::make_pair(satId, fwdFrequencyId), fwdChannel);
    m_rtnChannels.emplace(std::make_pair(satId, rtnFrequencyId), rtnChannel);
 
    UpdateBeamsForFrequency(satId, beamId, fwdFrequencyId, rtnFrequencyId);
}
 
} // namespace ns3