SimLink.h

// 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.

#ifndef __WRAPPERS_HARNESS_SIM_LINK_H__
#define __WRAPPERS_HARNESS_SIM_LINK_H__

#include "config.h"
#include "dtn/Link.h"
#include "simlpy/Time.h"

class WrapLink;


class SimLink : public DTN::Link
{
   public :
      SimLink( WrapLink* owner, bool up = true );
      virtual ~SimLink();

      bool available() const { return m_up && !m_busy; }

      void send( DTN::Bundle* b );

      const DTN::ByteString& remoteAddr() const;

      const Time& latency() const { return m_latency; }
      unsigned long int bandwidth() const { return m_bandwidth; }
      bool busy() const { return m_busy; }
      const Time& busyUntil() const { return m_busyUntil; }
      bool up() const { return m_up; }
      const Time& upSince() const { return m_upSince; }

      void setLatency( double lat );
      void setBandwidth( unsigned long int bw ) { m_bandwidth = bw; }
      void setBusy( bool b ) { m_busy = b; }
      void setUp();
      void setDown();

   private :
      WrapLink*          m_owner;
      Time               m_latency;
      unsigned long int  m_bandwidth;
      mutable bool       m_busy;
      mutable Time       m_busyUntil;
      mutable Time       m_earliestDelivery;
      mutable bool       m_up;
      mutable Time       m_upSince;
};


#endif /* __WRAPPERS_HARNESS_SIM_LINK_H__ */

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