/* -*-  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 "originator-block-ack-agreement.h"

namespace ns3 {

OriginatorBlockAckAgreement::OriginatorBlockAckAgreement ()

  : BlockAckAgreement (),

    m_state (PENDING),

    m_sentMpdus (0)

{}

OriginatorBlockAckAgreement::OriginatorBlockAckAgreement (Mac48Address recipient, uint8_t tid)

  : BlockAckAgreement (recipient, tid),

    m_state (PENDING),

    m_sentMpdus (0)

{}

OriginatorBlockAckAgreement::~OriginatorBlockAckAgreement ()

{}

void

OriginatorBlockAckAgreement::SetState (enum State state)

{

  m_state = state;

  if (state == INACTIVE)

    {

      m_sentMpdus = 0;

    }

}

bool

OriginatorBlockAckAgreement::IsPending (void) const

{

  return (m_state == PENDING)?true:false;

}

bool

OriginatorBlockAckAgreement::IsEstablished (void) const

{

  return (m_state == ESTABLISHED)?true:false;

}

bool

OriginatorBlockAckAgreement::IsInactive (void) const

{

  return (m_state == INACTIVE)?true:false;

}

bool

OriginatorBlockAckAgreement::IsUnsuccessful (void) const

{

  return (m_state == UNSUCCESSFUL)?true:false;

}

void

OriginatorBlockAckAgreement::NotifyMpduTransmission (void)

{

  NS_ASSERT (m_sentMpdus < m_bufferSize);

  m_sentMpdus++;

}

bool

OriginatorBlockAckAgreement::NeedBlockAckRequest (void) const

{

  return (m_sentMpdus == m_bufferSize/2)?true:false;

}

void

OriginatorBlockAckAgreement::CompleteExchange (void)

{

  m_sentMpdus = 0;

}

} //namespace ns3