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

/*

 * Copyright (c) 2009 MIRKO BANCHI

 *

 * 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: Mirko Banchi <mk.banchi@gmail.com>

 */

#include "qos-utils.h"

#include "qos-tag.h"

namespace ns3 {

AccessClass

QosUtilsMapTidToAc (uint8_t tid)

{

  switch (tid) {

  case 0 :

    return AC_BE;

    break;

  case 1 :

    return AC_BK;

    break;

  case 2 :

    return AC_BK;

    break;

  case 3 :

    return AC_BE;

    break;

  case 4 :

    return AC_VI;

    break;

  case 5 :

    return AC_VI;

    break;

  case 6 :

    return AC_VO;

    break;

  case 7 : 

    return AC_VO;

    break;

  }

  return AC_UNDEF;

}

uint8_t

QosUtilsGetTidForPacket (Ptr<const Packet> packet)

{

  QosTag qos;

  uint8_t tid = 8;

  if (packet->PeekPacketTag (qos))

    {

      if (qos.GetTid () < 8)

        {

          tid = qos.GetTid ();

        }

    }

  return tid;

}

} //namespace ns3