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

/*

 * Copyright (c) 2006 Georgia Tech Research Corporation, INRIA

 *

 * 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

 *

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

 *          Mathieu Lacage <mathieu.lacage@sophia.inria.fr>

 */

#include "ns3/empty-trace-resolver.h"

  device->SetReceiveCallback (MakeCallback (&Node::ReceiveFromDevice, this));

  NotifyDeviceAdded (device);

TraceResolver *

Node::DoCreateTraceResolver (TraceContext const &context)

{

  return new EmptyTraceResolver (context);

}

void 

Node::NotifyDeviceAdded (Ptr<NetDevice> device)

{}

void

Node::RegisterProtocolHandler (ProtocolHandler handler, 

                               uint16_t protocolType,

                               Ptr<NetDevice> device)

{

  struct Node::ProtocolHandlerEntry entry;

  entry.handler = handler;

  entry.isSpecificProtocol = true;

  entry.protocol = protocolType;

  entry.device = device;

  m_handlers.push_back (entry);

}

void 

Node::RegisterProtocolHandler (ProtocolHandler handler,

                               Ptr<NetDevice> device)

{

  struct Node::ProtocolHandlerEntry entry;

  entry.handler = handler;

  entry.isSpecificProtocol = false;

  entry.protocol = 0;

  entry.device = device;

  m_handlers.push_back (entry);

}

void

Node::UnregisterProtocolHandler (ProtocolHandler handler)

{

  for (ProtocolHandlerList::iterator i = m_handlers.begin ();

       i != m_handlers.end (); i++)

    {

      if (i->handler.IsEqual (handler))

        {

          m_handlers.erase (i);

          break;

        }

    }

}

bool

Node::ReceiveFromDevice (Ptr<NetDevice> device, const Packet &packet, uint16_t protocol)

{

  bool found = false;

  for (ProtocolHandlerList::iterator i = m_handlers.begin ();

       i != m_handlers.end (); i++)

    {

      if (i->device == 0 ||

          (i->device != 0 && i->device == device))

        {

          if (!i->isSpecificProtocol || 

              (i->isSpecificProtocol && i->protocol == protocol))

            {

              i->handler (packet, protocol, device);

              found = true;

            }

        }

    }

  return found;

}