termbroadcastop.hpp

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/*
 *  Open BEAGLE
 *  Copyright (C) 2001-2005 by Christian Gagne and Marc Parizeau
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library 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
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact:
 *  Laboratoire de Vision et Systemes Numeriques
 *  Departement de genie electrique et de genie informatique
 *  Universite Laval, Quebec, Canada, G1K 7P4
 *  http://vision.gel.ulaval.ca
 *
 */

/*!
 *  \file   beagle/Coev/TermBroadcastOp.hpp
 *  \brief  Definition of the class TermBroadcastOp.
 *  \author Christian Gagne
 *  \author Marc Parizeau
 *  $Revision: 1.5 $
 *  $Date: 2005/09/30 15:04:52 $
 */

#ifndef Beagle_TermBroadcastOp_hpp
#define Beagle_TermBroadcastOp_hpp

#include "Threading.hpp"

#include "beagle/Beagle.hpp"


namespace Beagle {
namespace Coev {

/*!
 *  \class TermBroadcastOp beagle/Coev/TermBroadcastOp.hpp "beagle/Coev/TermBroadcastOp.hpp"
 *  \brief Broadcast termination criterion amoung coevolution threads operator class.
 *  \ingroup COEVF
 */
class TermBroadcastOp : public TerminationOp {

public:

  //! TermBroadcastOp allocator type
  typedef AllocatorT<TermBroadcastOp,TerminationOp::Alloc>
          Alloc;
  //! TermBroadcastOp handle type.
  typedef PointerT<TermBroadcastOp,TerminationOp::Handle>
          Handle;
  //! TermBroadcastOp bag type.
  typedef ContainerT<TermBroadcastOp,TerminationOp::Bag>
          Bag;

  explicit TermBroadcastOp(string inName="Coev-TermBroadcastOp");
  virtual ~TermBroadcastOp() { }

  virtual void initialize(System& ioSystem);
  virtual bool terminate(const Deme& inDeme, Context& ioContext);

protected:

  static PACC::Threading::Condition smCondition;   //!< Condition for synchronizing threads termination.
  static unsigned int               smTrigger;     //!< Actual number of threads locked on condition.
  static unsigned int               smNbrThreads;  //!< Number of threads involved in co-evolution.
  static bool                       smTermReached; //!< Stopping criterion reached.
  
};

}
}

#endif // Beagle_TerminationCheckOp_hpp