timer.h

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/***************************************************************************
 *   Copyright (C) 2005 by Christophe GONZALES and Pierre-Henri WUILLEMIN  *
 *   {prenom.nom}_at_lip6.fr                                               *
 *                                                                         *
 *   This program 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 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   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.             *
 ***************************************************************************/
#ifndef GUM_TIMER_H
#define GUM_TIMER_H
#include <chrono>

#include <agrum/agrum.h>


namespace gum {

  class Timer {
    public:
    // ============================================================================
    // ============================================================================

    Timer();

    Timer(const Timer& timer);

    ~Timer();

    // ============================================================================
    // ============================================================================

    Timer& operator=(const Timer& timer);

    // ============================================================================
    // ============================================================================

    void reset();
    double pause();
    double resume();

    double step() const;


    protected:
    std::chrono::high_resolution_clock::time_point _start;

    std::chrono::high_resolution_clock::time_point _pause;

    bool _sleeping;
  };

} /* namespace gum */

#ifndef GUM_NO_INLINE
#  include <agrum/core/timer_inl.h>
#endif   // GUM_NO_INLINE

#endif   // GUM_TIMER_H