src/devices/wifi/edca-txop-n.cc
author Ramon Bauza
Tue, 15 Sep 2009 10:47:02 +0200
changeset 5189 8fcdf87a790a
parent 4720 15221757964f
child 5819 514ec98954ab
permissions -rw-r--r--
Channel switching support for Wifi
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/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
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/*
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 * Copyright (c) 2006, 2009 INRIA
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 * Copyright (c) 2009 MIRKO BANCHI
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 *
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 * This program is free software; you can redistribute it and/or modify
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 * it under the terms of the GNU General Public License version 2 as 
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 * published by the Free Software Foundation;
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU General Public License
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 * along with this program; if not, write to the Free Software
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 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
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 *
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 * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
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 * Author: Mirko Banchi <mk.banchi@gmail.com>
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 */
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#include "ns3/log.h"
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#include "ns3/assert.h"
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#include "edca-txop-n.h"
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#include "mac-low.h"
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#include "dcf-manager.h"
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#include "mac-tx-middle.h"
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#include "wifi-mac-trailer.h"
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#include "wifi-mac.h"
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#include "random-stream.h"
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#include "wifi-mac-queue.h"
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#include "msdu-aggregator.h"
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NS_LOG_COMPONENT_DEFINE ("EdcaTxopN");
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#define MY_DEBUG(x) \
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  NS_LOG_DEBUG (m_low->GetAddress () << " " << x)
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namespace ns3 {
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class EdcaTxopN::Dcf : public DcfState
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{
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public:
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  Dcf (EdcaTxopN *txop)
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    : m_txop (txop)
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  {}
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private:
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  virtual void DoNotifyAccessGranted (void) {
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    m_txop->NotifyAccessGranted ();
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  }
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  virtual void DoNotifyInternalCollision (void) {
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    m_txop->NotifyInternalCollision ();
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  }
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  virtual void DoNotifyCollision (void) {
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    m_txop->NotifyCollision ();
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  }
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  virtual void DoNotifyChannelSwitching (void) { 
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    m_txop->NotifyChannelSwitching ();
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  }
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  EdcaTxopN *m_txop;
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};
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class EdcaTxopN::TransmissionListener : public MacLowTransmissionListener
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{
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public:
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  TransmissionListener (EdcaTxopN *txop)
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    : MacLowTransmissionListener (),
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      m_txop (txop) {}
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  virtual ~TransmissionListener () {}
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  virtual void GotCts (double snr, WifiMode txMode) {
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    m_txop->GotCts (snr, txMode);
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  }
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  virtual void MissedCts (void) {
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    m_txop->MissedCts ();
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  }
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  virtual void GotAck (double snr, WifiMode txMode) {
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    m_txop->GotAck (snr, txMode);
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  }
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  virtual void MissedAck (void) {
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    m_txop->MissedAck ();
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  }
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  virtual void StartNext (void) {
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    m_txop->StartNext ();
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  }
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  virtual void Cancel (void) {
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    m_txop->Cancel ();
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  }
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private:
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  EdcaTxopN *m_txop;
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};
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NS_OBJECT_ENSURE_REGISTERED (EdcaTxopN);
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TypeId
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EdcaTxopN::GetTypeId (void)
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{
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  static TypeId tid = TypeId ("ns3::EdcaTxopN")
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    .SetParent<Object> ()
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    .AddConstructor<EdcaTxopN> ()
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    ;
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  return tid;
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}
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EdcaTxopN::EdcaTxopN ()
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  : m_manager (0),
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    m_currentPacket(0),
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    m_aggregator (0)
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{
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  NS_LOG_FUNCTION (this);
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  m_transmissionListener = new EdcaTxopN::TransmissionListener (this);
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  m_dcf = new EdcaTxopN::Dcf (this);
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  m_queue = CreateObject<WifiMacQueue> ();
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  m_rng = new RealRandomStream ();
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}
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EdcaTxopN::~EdcaTxopN ()
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{
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  NS_LOG_FUNCTION (this);
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}
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void
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EdcaTxopN::DoDispose (void)
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{
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  NS_LOG_FUNCTION (this);
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  m_queue = 0;
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  m_low = 0;
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  m_stationManager = 0;
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  delete m_transmissionListener;
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  delete m_dcf;
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  delete m_rng;
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  m_transmissionListener = 0;
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  m_dcf = 0;
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  m_rng = 0;
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  m_txMiddle = 0;
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  m_aggregator = 0;
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}
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void
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EdcaTxopN::SetManager (DcfManager *manager)
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{
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  NS_LOG_FUNCTION (this << manager);
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  m_manager = manager;
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  m_manager->Add (m_dcf);
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}
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void
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EdcaTxopN::SetTxOkCallback (TxOk callback)
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{
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  m_txOkCallback = callback;
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}
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void 
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EdcaTxopN::SetTxFailedCallback (TxFailed callback)
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{
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  m_txFailedCallback = callback;
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}
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void
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EdcaTxopN::SetWifiRemoteStationManager (Ptr<WifiRemoteStationManager> remoteManager)
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{
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  NS_LOG_FUNCTION (this << remoteManager);
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  m_stationManager = remoteManager;
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}
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void
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EdcaTxopN::SetTypeOfStation (enum TypeOfStation type)
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{
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  NS_LOG_FUNCTION (this << type);
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  m_typeOfStation = type;
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}
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enum TypeOfStation
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EdcaTxopN::GetTypeOfStation (void) const
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{
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  return m_typeOfStation;
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}
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void 
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EdcaTxopN::SetMaxQueueSize (uint32_t size)
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{
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  NS_LOG_FUNCTION (this << size);
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  m_queue->SetMaxSize (size);
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}
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void
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EdcaTxopN::SetMaxQueueDelay (Time delay)
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{
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  NS_LOG_FUNCTION (this << delay);
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  m_queue->SetMaxDelay (delay);
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}
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void 
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EdcaTxopN::SetMinCw (uint32_t minCw)
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{
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  NS_LOG_FUNCTION (this << minCw);
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  m_dcf->SetCwMin (minCw);
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}
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void 
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EdcaTxopN::SetMaxCw (uint32_t maxCw)
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{
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  NS_LOG_FUNCTION (this << maxCw);
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  m_dcf->SetCwMax (maxCw);
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}
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void 
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EdcaTxopN::SetAifsn (uint32_t aifsn)
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{
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  NS_LOG_FUNCTION (this << aifsn);
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  m_dcf->SetAifsn (aifsn);
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}
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uint32_t 
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EdcaTxopN::GetMinCw (void) const
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{
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  return m_dcf->GetCwMin ();
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}
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uint32_t 
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EdcaTxopN::GetMaxCw (void) const
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{
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  return m_dcf->GetCwMax ();
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}
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uint32_t 
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EdcaTxopN::GetAifsn (void) const
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{
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  return m_dcf->GetAifsn ();
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}
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void
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EdcaTxopN::SetTxMiddle (MacTxMiddle *txMiddle)
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{
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  m_txMiddle = txMiddle;
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}
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Ptr<MacLow>
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EdcaTxopN::Low (void)
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{
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  return m_low;
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}
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void
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EdcaTxopN::SetLow(Ptr<MacLow> low)
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{
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  NS_LOG_FUNCTION (this << low);
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  m_low = low;
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}
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bool
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EdcaTxopN::NeedsAccess (void) const
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{
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  return !m_queue->IsEmpty () || m_currentPacket != 0;
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}
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void
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EdcaTxopN::NotifyAccessGranted (void)
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{
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  NS_LOG_FUNCTION (this);
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  if (m_currentPacket == 0)
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    {
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      if (m_queue->IsEmpty ())
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        {
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          MY_DEBUG ("queue is empty");
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          return; 
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        }
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      m_currentPacket = m_queue->Dequeue (&m_currentHdr);
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      NS_ASSERT (m_currentPacket != 0);
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      uint16_t sequence = m_txMiddle->GetNextSequenceNumberfor (&m_currentHdr);
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      m_currentHdr.SetSequenceNumber (sequence);
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      m_currentHdr.SetFragmentNumber (0);
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      m_currentHdr.SetNoMoreFragments ();
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      m_currentHdr.SetNoRetry ();
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      m_fragmentNumber = 0;
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      MY_DEBUG ("dequeued size="<<m_currentPacket->GetSize ()<<
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                ", to="<<m_currentHdr.GetAddr1 ()<<
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                ", seq="<<m_currentHdr.GetSequenceControl ());
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    }
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  MacLowTransmissionParameters params;
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  params.DisableOverrideDurationId ();
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  if (m_currentHdr.GetAddr1 ().IsBroadcast ()) 
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    {
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      params.DisableRts ();
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      params.DisableAck ();
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      params.DisableNextData ();
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      m_low->StartTransmission (m_currentPacket,
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                                 &m_currentHdr,
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                                 params,
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                                 m_transmissionListener);
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      m_currentPacket = 0;
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diff changeset
   296
      m_dcf->ResetCw ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   297
      m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   298
      StartAccessIfNeeded ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   299
      MY_DEBUG ("tx broadcast");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   300
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   301
  else
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   302
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   303
      params.EnableAck ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   304
      if (NeedFragmentation () && ((m_currentHdr.IsQosData () &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   305
                                    !m_currentHdr.IsQosAmsdu ()) ||
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   306
                                    m_currentHdr.IsData ()))
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   307
        {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   308
          params.DisableRts ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   309
          WifiMacHeader hdr;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   310
          Ptr<Packet> fragment = GetFragmentPacket (&hdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   311
          if (IsLastFragment ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   312
            {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   313
              MY_DEBUG ("fragmenting last fragment size=" << fragment->GetSize ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   314
              params.DisableNextData ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   315
            } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   316
          else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   317
            {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   318
              MY_DEBUG ("fragmenting size=" << fragment->GetSize ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   319
              params.EnableNextData (GetNextFragmentSize ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   320
            }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   321
          m_low->StartTransmission (fragment, &hdr, params, 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   322
                                     m_transmissionListener);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   323
        }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   324
      else
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   325
        {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   326
          WifiMacHeader peekedHdr;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   327
          if (m_currentHdr.IsQosData () &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   328
              m_queue->PeekByTidAndAddress (&peekedHdr, m_currentHdr.GetQosTid (), 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   329
                                            WifiMacHeader::ADDR1, m_currentHdr.GetAddr1 ()) &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   330
              !m_currentHdr.GetAddr1 ().IsBroadcast () &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   331
              m_aggregator != 0)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   332
            {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   333
              /* here is performed aggregation */
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   334
              Ptr<Packet> currentAggregatedPacket = Create<Packet> ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   335
              m_aggregator->Aggregate (m_currentPacket, currentAggregatedPacket,
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   336
                                       MapSrcAddressForAggregation (peekedHdr),
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   337
                                       MapDestAddressForAggregation (peekedHdr));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   338
              bool aggregated = false;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   339
              bool isAmsdu = false;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   340
              Ptr<const Packet> peekedPacket = m_queue->PeekByTidAndAddress (&peekedHdr, m_currentHdr.GetQosTid (), 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   341
                                                                       WifiMacHeader::ADDR1, 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   342
                                                                       m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   343
              while (peekedPacket != 0)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   344
                {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   345
                  aggregated = m_aggregator->Aggregate (peekedPacket, currentAggregatedPacket,
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   346
                                                        MapSrcAddressForAggregation (peekedHdr),
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   347
                                                        MapDestAddressForAggregation (peekedHdr));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   348
                  if (aggregated) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   349
                    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   350
                      isAmsdu = true;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   351
                      m_queue->Remove (peekedPacket);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   352
                    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   353
                  else
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   354
                    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   355
                      break;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   356
                    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   357
                  peekedPacket = m_queue->PeekByTidAndAddress (&peekedHdr, m_currentHdr.GetQosTid (), 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   358
                                                               WifiMacHeader::ADDR1, m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   359
                }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   360
              if (isAmsdu)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   361
                {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   362
                  m_currentHdr.SetQosAmsdu ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   363
                  m_currentHdr.SetAddr3 (m_low->GetBssid ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   364
                  m_currentPacket = currentAggregatedPacket;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   365
                  currentAggregatedPacket = 0;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   366
                  MY_DEBUG ("tx unicast A-MSDU");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   367
                }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   368
            }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   369
          if (NeedRts ())
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   370
            {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   371
              params.EnableRts ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   372
              MY_DEBUG ("tx unicast rts");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   373
            } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   374
          else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   375
            {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   376
              params.DisableRts ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   377
              MY_DEBUG ("tx unicast");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   378
            }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   379
          params.DisableNextData ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   380
          m_low->StartTransmission (m_currentPacket, &m_currentHdr,
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   381
                                    params, m_transmissionListener);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   382
        }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   383
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   384
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   385
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   386
void EdcaTxopN::NotifyInternalCollision (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   387
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   388
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   389
  NotifyCollision ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   390
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   391
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   392
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   393
EdcaTxopN::NotifyCollision (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   394
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   395
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   396
  m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   397
  RestartAccessIfNeeded ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   398
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   399
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   400
void 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   401
EdcaTxopN::GotCts (double snr, WifiMode txMode)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   402
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   403
  NS_LOG_FUNCTION (this << snr << txMode);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   404
  MY_DEBUG ("got cts");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   405
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   406
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   407
void 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   408
EdcaTxopN::MissedCts (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   409
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   410
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   411
  MY_DEBUG ("missed cts");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   412
  if (!NeedRtsRetransmission ())
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   413
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   414
      MY_DEBUG ("Cts Fail");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   415
      WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   416
      station->ReportFinalRtsFailed ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   417
      if (!m_txFailedCallback.IsNull ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   418
        {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   419
          m_txFailedCallback (m_currentHdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   420
        }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   421
      // to reset the dcf.
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   422
      m_currentPacket = 0;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   423
      m_dcf->ResetCw ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   424
    } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   425
  else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   426
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   427
      m_dcf->UpdateFailedCw ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   428
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   429
  m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   430
  RestartAccessIfNeeded ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   431
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   432
5189
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   433
void 
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   434
EdcaTxopN::NotifyChannelSwitching (void)
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   435
{
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   436
  m_queue->Flush();
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   437
  m_currentPacket = 0;
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   438
}
8fcdf87a790a Channel switching support for Wifi
Ramon Bauza
parents: 4720
diff changeset
   439
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   440
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   441
EdcaTxopN::Queue (Ptr<const Packet> packet, WifiMacHeader const &hdr)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   442
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   443
  NS_LOG_FUNCTION (this << packet << &hdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   444
  WifiMacTrailer fcs;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   445
  uint32_t fullPacketSize = hdr.GetSerializedSize () + packet->GetSize () + fcs.GetSerializedSize ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   446
  WifiRemoteStation *station = GetStation (hdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   447
  station->PrepareForQueue (packet, fullPacketSize);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   448
  m_queue->Enqueue (packet, hdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   449
  StartAccessIfNeeded ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   450
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   451
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   452
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   453
EdcaTxopN::GotAck (double snr, WifiMode txMode)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   454
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   455
  NS_LOG_FUNCTION (this << snr << txMode);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   456
  if (!NeedFragmentation () ||
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   457
      IsLastFragment () ||
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   458
      m_currentHdr.IsQosAmsdu ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   459
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   460
      MY_DEBUG ("got ack. tx done.");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   461
      if (!m_txOkCallback.IsNull ())
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   462
        {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   463
           m_txOkCallback (m_currentHdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   464
        }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   465
      m_currentPacket = 0;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   466
         
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   467
      m_dcf->ResetCw ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   468
      m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   469
      RestartAccessIfNeeded ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   470
    } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   471
  else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   472
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   473
      MY_DEBUG ("got ack. tx not done, size="<<m_currentPacket->GetSize ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   474
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   475
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   476
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   477
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   478
EdcaTxopN::MissedAck (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   479
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   480
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   481
  MY_DEBUG ("missed ack");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   482
  if (!NeedDataRetransmission ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   483
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   484
      MY_DEBUG ("Ack Fail");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   485
      WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   486
      station->ReportFinalDataFailed ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   487
      if (!m_txFailedCallback.IsNull ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   488
        {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   489
          m_txFailedCallback (m_currentHdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   490
        }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   491
      // to reset the dcf.
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   492
      m_currentPacket = 0;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   493
      m_dcf->ResetCw ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   494
    } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   495
  else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   496
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   497
      MY_DEBUG ("Retransmit");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   498
      m_currentHdr.SetRetry ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   499
      m_dcf->UpdateFailedCw ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   500
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   501
  m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   502
  RestartAccessIfNeeded ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   503
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   504
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   505
Ptr<MsduAggregator>
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   506
EdcaTxopN::GetMsduAggregator (void) const
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   507
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   508
  return m_aggregator;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   509
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   510
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   511
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   512
EdcaTxopN::RestartAccessIfNeeded (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   513
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   514
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   515
  if ((m_currentPacket != 0 ||
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   516
       !m_queue->IsEmpty ()) &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   517
       !m_dcf->IsAccessRequested ())
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   518
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   519
      m_manager->RequestAccess (m_dcf);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   520
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   521
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   522
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   523
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   524
EdcaTxopN::StartAccessIfNeeded (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   525
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   526
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   527
  if (m_currentPacket == 0 &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   528
      !m_queue->IsEmpty () &&
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   529
      !m_dcf->IsAccessRequested ())
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   530
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   531
      m_manager->RequestAccess (m_dcf);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   532
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   533
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   534
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   535
bool
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   536
EdcaTxopN::NeedRts (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   537
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   538
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   539
  return station->NeedRts (m_currentPacket);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   540
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   541
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   542
bool
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   543
EdcaTxopN::NeedRtsRetransmission (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   544
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   545
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   546
  return station->NeedRtsRetransmission (m_currentPacket);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   547
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   548
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   549
bool
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   550
EdcaTxopN::NeedDataRetransmission (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   551
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   552
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   553
  return station->NeedDataRetransmission (m_currentPacket);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   554
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   555
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   556
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   557
EdcaTxopN::NextFragment (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   558
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   559
  m_fragmentNumber++;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   560
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   561
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   562
void 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   563
EdcaTxopN::StartNext (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   564
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   565
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   566
  MY_DEBUG ("start next packet fragment");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   567
  /* this callback is used only for fragments. */
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   568
  NextFragment ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   569
  WifiMacHeader hdr;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   570
  Ptr<Packet> fragment = GetFragmentPacket (&hdr);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   571
  MacLowTransmissionParameters params;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   572
  params.EnableAck ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   573
  params.DisableRts ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   574
  params.DisableOverrideDurationId ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   575
  if (IsLastFragment ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   576
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   577
      params.DisableNextData ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   578
    } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   579
  else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   580
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   581
      params.EnableNextData (GetNextFragmentSize ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   582
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   583
  Low ()->StartTransmission (fragment, &hdr, params, m_transmissionListener);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   584
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   585
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   586
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   587
EdcaTxopN::Cancel (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   588
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   589
  NS_LOG_FUNCTION (this);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   590
  MY_DEBUG ("transmission cancelled");
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   591
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   592
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   593
bool
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   594
EdcaTxopN::NeedFragmentation (void) const
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   595
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   596
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   597
  return station->NeedFragmentation (m_currentPacket);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   598
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   599
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   600
uint32_t
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   601
EdcaTxopN::GetFragmentSize (void)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   602
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   603
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   604
  return station->GetFragmentSize (m_currentPacket, m_fragmentNumber);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   605
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   606
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   607
uint32_t
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   608
EdcaTxopN::GetNextFragmentSize (void) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   609
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   610
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   611
  return station->GetFragmentSize (m_currentPacket, m_fragmentNumber + 1);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   612
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   613
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   614
uint32_t
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   615
EdcaTxopN::GetFragmentOffset (void) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   616
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   617
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   618
  return station->GetFragmentOffset (m_currentPacket, m_fragmentNumber);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   619
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   620
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   621
WifiRemoteStation *
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   622
EdcaTxopN::GetStation (Mac48Address ad) const
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   623
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   624
  return m_stationManager->Lookup (ad);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   625
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   626
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   627
bool
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   628
EdcaTxopN::IsLastFragment (void) const
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   629
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   630
  WifiRemoteStation *station = GetStation (m_currentHdr.GetAddr1 ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   631
  return station->IsLastFragment (m_currentPacket, m_fragmentNumber);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   632
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   633
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   634
Ptr<Packet>
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   635
EdcaTxopN::GetFragmentPacket (WifiMacHeader *hdr)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   636
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   637
  *hdr = m_currentHdr;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   638
  hdr->SetFragmentNumber (m_fragmentNumber);
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   639
  uint32_t startOffset = GetFragmentOffset ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   640
  Ptr<Packet> fragment;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   641
  if (IsLastFragment ()) 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   642
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   643
      hdr->SetNoMoreFragments ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   644
    } 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   645
  else 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   646
    {
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   647
      hdr->SetMoreFragments ();
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   648
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   649
  fragment = m_currentPacket->CreateFragment (startOffset, 
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   650
                                              GetFragmentSize ());
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   651
  return fragment;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   652
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   653
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   654
Mac48Address
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   655
EdcaTxopN::MapSrcAddressForAggregation (WifiMacHeader const &hdr)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   656
{
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   657
  Mac48Address retval;
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   658
  if (m_typeOfStation == STA || m_typeOfStation == ADHOC_STA)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   659
    {
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   660
      retval = hdr.GetAddr2 ();
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   661
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   662
  else
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   663
    {
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   664
      retval = hdr.GetAddr3 ();
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   665
    }
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   666
  return retval;
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   667
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   668
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   669
Mac48Address
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   670
EdcaTxopN::MapDestAddressForAggregation (WifiMacHeader const &hdr)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   671
{
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   672
  Mac48Address retval;
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   673
  if (m_typeOfStation == AP || m_typeOfStation == ADHOC_STA)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   674
    {
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   675
      retval = hdr.GetAddr1 ();
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   676
    }
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   677
  else
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   678
    {
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   679
      retval = hdr.GetAddr3 ();
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   680
    }
4434
5e3d1c06662f Fix build on osx-ppc optimized gcc 4.0.1
Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
parents: 4408
diff changeset
   681
  return retval;
4408
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   682
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   683
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   684
void
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   685
EdcaTxopN::SetMsduAggregator (Ptr<MsduAggregator> aggr)
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   686
{
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   687
  m_aggregator = aggr;
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   688
}
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   689
76a169b3db3d add qos MACs
Mirko Banchi <mk.banchi@gmail.com>
parents:
diff changeset
   690
} //namespace ns3