WirelessLink.cc

// Copyright 2008 Michael Marsh, University of Maryland.
//
// This file is part of pydtn.
//
// pydtn is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// pydtn 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 pydtn.  If not, see <http://www.gnu.org/licenses/>.
//
// The views and conclusions contained in the software and documentation
// are those of the authors and should not be interpreted as representing
// official policies, either expressed or implied, of the University
// of Maryland.
//
// pydtn extends and embeds the Python interpreter, which is
// Copyright 2001-2006 Python Software Foundation, All Rights Reserved,
// and is released under the PSF License Agreement.
//
// RANLUX random number generation uses the Boost library,
// Copyright 1994-2006 by various authors (details in individual files),
// which is released under the Boost Software License, Version 1.0.

#include "simlpy/interpreter_defs.h"
#include "simlpy/interpreter_hooks.h"

#include "config.h"

#include "WirelessLink.h"
#include "MobileNode.h"
#include "simlpy/SimulationException.h"
#include "pydtn/AliasLink.h"

#include <iostream>

using namespace Mobility;

WirelessLink::WirelessLink() :
   m_node( 0 )
{
}

WirelessLink::~WirelessLink()
{
}

void
WirelessLink::configure( const ArgList& args )
{
   unsigned int nargs = args.size();
   if ( 0 == nargs )
   {
      std::cerr << "no configuration options were passed" << std::endl;
      throw SimulationException( __FILE__ , __LINE__ );
   }
   std::string command = parse_string(args[0]);
   if ( "connect" == command )
   {
      if ( nargs < 2 )
      {
         std::cerr << "config('connect') requires two arguments"
                   << std::endl;
         throw SimulationException( __FILE__ , __LINE__ );
      }
      MobileNode* node = 0;
      try
      {
         ItemWrapper item = resolve_symbol( args[1] );
         if ( 0 != item.type.find( MobileNode::kIdentifier ) )
         {
            throw SimulationException( __FILE__ , __LINE__ );
         }
         node = (MobileNode*)(item.item);
         m_source = node;
         m_destination = node; // a NULL destination causes problems
         m_node = node;
         if ( 0 != m_source )
         {
            m_source->addLink( new AliasLink( &m_link ) );
         }
      }
      catch ( ... )
      {
         std::cerr << "The second argument of "
                   << "config('connect',node) must be a mobile node"
                   << std::endl;
         throw;
      }
      return;
   }
   WrapLink::configure(args);
}

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