LockedChrono.h

Go to the documentation of this file.

/***********************************************************************************\
* (c) Copyright 1998-2024 CERN for the benefit of the LHCb and ATLAS collaborations *
*                                                                                   *
* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
*                                                                                   *
* In applying this licence, CERN does not waive the privileges and immunities       *
* granted to it by virtue of its status as an Intergovernmental Organization        *
* or submit itself to any jurisdiction.                                             *
\***********************************************************************************/
#ifndef GAUDI_LOCKEDCHRONO_H
#define GAUDI_LOCKEDCHRONO_H 1
// ===========================================================================
// Include files
// ===========================================================================
// GaudiKernel
// ===========================================================================
#include <GaudiKernel/ChronoEntity.h>
// ===========================================================================
namespace Gaudi {
  // =========================================================================
  namespace Utils {
    // =======================================================================
    class LockedChrono {
    public:
      // ======================================================================
      LockedChrono( ChronoEntity& c, bool& lock ) : m_timer( c ), m_locker( lock ) {
        if ( !lock ) {
          m_timer.start();
          m_locker = true;
          m_locked = true;
        }
      }
      ~LockedChrono() {
        if ( m_locked ) {
          m_timer.stop();
          m_locker = false;
        }
      }
      // ======================================================================
      LockedChrono() = delete;
      // ======================================================================
    private:
      // ======================================================================
      ChronoEntity& m_timer; // the actual timer
      bool& m_locker; // the actual locker
      bool m_locked = false; //          locked ?
      // ======================================================================
    };
    // ========================================================================
  } // namespace Utils
  // ==========================================================================
} //                                                     end of namespace Gaudi
// ============================================================================
// The END
// ============================================================================
#endif // GAUDI_LOCKEDCHRONO_H