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

/*

 * Copyright (c) 2007, 2008 University of Washington

 *

 * 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: George Riley <riley@ece.gatech.edu>

 */

#include <iostream>

#include "point-to-point-remote-channel.h"

#include "point-to-point-net-device.h"

#include "ns3/packet.h"

#include "ns3/simulator.h"

#include "ns3/log.h"

#include "ns3/mpi-interface.h"

NS_LOG_COMPONENT_DEFINE ("PointToPointRemoteChannel");

namespace ns3 {

TypeId

PointToPointRemoteChannel::GetTypeId (void)

{

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

    .SetParent<PointToPointChannel> ()

    .AddConstructor<PointToPointRemoteChannel> ()

  ;

  return tid;

}

PointToPointRemoteChannel::PointToPointRemoteChannel ()

{

}

PointToPointRemoteChannel::~PointToPointRemoteChannel ()

{

}

bool

PointToPointRemoteChannel::TransmitStart (

  Ptr<Packet> p,

  Ptr<PointToPointNetDevice> src,

  Time txTime)

{

  NS_LOG_FUNCTION (this << p << src);

  NS_LOG_LOGIC ("UID is " << p->GetUid () << ")");

  IsInitialized ();

  uint32_t wire = src == GetSource (0) ? 0 : 1;

  Ptr<PointToPointNetDevice> dst = GetDestination (wire);

#ifdef NS3_MPI

  // Calculate the rxTime (absolute)

  Time rxTime = Simulator::Now () + txTime + GetDelay ();

  MpiInterface::SendPacket (p, rxTime, dst->GetNode ()->GetId (), dst->GetIfIndex ());

#else

  NS_FATAL_ERROR ("Can't use distributed simulator without MPI compiled in");

#endif

  return true;

}

} // namespace ns3