/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */

/*

 * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)

 *

 * 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: Nicola Baldo <nbaldo@cttc.es>

 */

#include "lte-rlc.h"

#include "lte-mac-sap.h"

#include "ff-mac-sched-sap.h"

#include "lte-rlc-tag.h"

#include <ns3/log.h>

#include <ns3/simulator.h>

NS_LOG_COMPONENT_DEFINE ("LteRlc");

namespace ns3 {

///////////////////////////////////////

class LteRlcSpecificLteMacSapUser : public LteMacSapUser

{

public:

  LteRlcSpecificLteMacSapUser (LteRlc* rlc);

  // inherited from LteMacSapUser

  virtual void NotifyTxOpportunity (uint32_t bytes);

  virtual void NotifyHarqDeliveryFailure ();

  virtual void ReceivePdu (Ptr<Packet> p);

private:

  LteRlcSpecificLteMacSapUser ();

  LteRlc* m_rlc;

};

LteRlcSpecificLteMacSapUser::LteRlcSpecificLteMacSapUser (LteRlc* rlc)

  : m_rlc (rlc)

{

}

LteRlcSpecificLteMacSapUser::LteRlcSpecificLteMacSapUser ()

{

}

void

LteRlcSpecificLteMacSapUser::NotifyTxOpportunity (uint32_t bytes)

{

  m_rlc->DoNotifyTxOpportunity (bytes);

}

void

LteRlcSpecificLteMacSapUser::NotifyHarqDeliveryFailure ()

{

  m_rlc->DoNotifyHarqDeliveryFailure ();

}

void

LteRlcSpecificLteMacSapUser::ReceivePdu (Ptr<Packet> p)

{

  m_rlc->DoReceivePdu (p);

}

///////////////////////////////////////

NS_OBJECT_ENSURE_REGISTERED (LteRlc);

LteRlc::LteRlc ()

  : m_macSapProvider (0),

    m_rnti (0),

    m_lcid (0)

{

  NS_LOG_FUNCTION (this);

  m_macSapUser = new LteRlcSpecificLteMacSapUser (this);

}

TypeId LteRlc::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::LteRlc")

    .SetParent<Object> ()

    .AddTraceSource ("TxPDU",

                     "PDU transmission notified to the MAC.",

                     MakeTraceSourceAccessor (&LteRlc::m_txPdu))

    .AddTraceSource ("RxPDU",

                     "PDU received.",

                     MakeTraceSourceAccessor (&LteRlc::m_rxPdu))

  return tid;

}

void

LteRlc::SetRnti (uint8_t rnti)

{

  NS_LOG_FUNCTION (this << (uint32_t)  rnti);

  m_rnti = rnti;

}

void

LteRlc::SetLcId (uint8_t lcId)

{

  NS_LOG_FUNCTION (this << (uint32_t) lcId);

  m_lcid = lcId;

}

LteRlc::~LteRlc ()

{

  NS_LOG_FUNCTION (this);

  delete (m_macSapUser);

}

void

LteRlc::SetLteMacSapProvider (LteMacSapProvider * s)

{

  NS_LOG_FUNCTION (this << s);

  m_macSapProvider = s;

}

LteMacSapUser*

LteRlc::GetLteMacSapUser ()

{

  NS_LOG_FUNCTION (this);

  return m_macSapUser;

}

// //////////////////////////////////////

NS_OBJECT_ENSURE_REGISTERED (LteRlcSm);

LteRlcSm::LteRlcSm ()

{

  NS_LOG_FUNCTION (this);

  Simulator::ScheduleNow (&LteRlcSm::Start, this);

}

LteRlcSm::~LteRlcSm ()

{

}

TypeId

LteRlcSm::GetTypeId (void)

{

  static TypeId tid = TypeId ("ns3::LteRlcSm")

    .SetParent<LteRlc> ()

    .AddConstructor<LteRlcSm> ()

  return tid;

}

void

LteRlcSm::DoReceivePdu (Ptr<Packet> p)

{

  // RLC Performance evaluation

  RlcTag rlcTag;

  Time delay;

    {

    }

  NS_LOG_FUNCTION (this << m_rnti << (uint32_t) m_lcid << p->GetSize () << delay.GetNanoSeconds ());

}

void

LteRlcSm::DoNotifyTxOpportunity (uint32_t bytes)

{

  LteMacSapProvider::TransmitPduParameters params;

  params.pdu = Create<Packet> (bytes);

  params.rnti = m_rnti;

  params.lcid = m_lcid;

  // RLC Performance evaluation

  params.pdu->AddByteTag (tag);

  NS_LOG_FUNCTION (this << m_rnti << (uint32_t) m_lcid << bytes);

  m_macSapProvider->TransmitPdu (params);

}

void

LteRlcSm::DoNotifyHarqDeliveryFailure ()

{

  NS_LOG_FUNCTION (this);

}

void

LteRlcSm::Start ()

{

  NS_LOG_FUNCTION (this);

  LteMacSapProvider::ReportBufferStatusParameters p;

  p.rnti = m_rnti;

  p.lcid = m_lcid;

  p.txQueueSize = 1000000000;

  p.txQueueHolDelay = 10000;

  p.retxQueueSize = 1000000000;

  p.retxQueueHolDelay = 10000;

  p.statusPduSize = 1000;

  m_macSapProvider->ReportBufferStatus (p);

}

//////////////////////////////////////////

// LteRlcTm::~LteRlcTm ()

// {

// }

//////////////////////////////////////////

// LteRlcUm::~LteRlcUm ()

// {

// }

//////////////////////////////////////////

// LteRlcAm::~LteRlcAm ()

// {

// }

} // namespace ns3