StatSvcAlg.cpp

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* (c) Copyright 1998-2019 CERN for the benefit of the LHCb and ATLAS collaborations *
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* This software is distributed under the terms of the Apache version 2 licence,     *
* copied verbatim in the file "LICENSE".                                            *
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// ============================================================================
// Include files
// ============================================================================
// STD & STL
// ============================================================================
#include <cmath>
// ============================================================================
// GaudiKernel
// ============================================================================
#include "GaudiKernel/IStatSvc.h"
#include "GaudiKernel/Stat.h"
// ============================================================================
// GaudiAlg
// ============================================================================
#include "GaudiAlg/GaudiAlgorithm.h"
// ============================================================================
// ============================================================================
namespace GaudiExamples {
  class StatSvcAlg : public GaudiAlgorithm {
  public:
    using GaudiAlgorithm::GaudiAlgorithm;
 
    StatusCode initialize() override {
      StatusCode sc = GaudiAlgorithm::initialize();
      if ( sc.isFailure() ) return sc; // RETURN
      m_stat = service( "ChronoStatSvc", true );
      return StatusCode::SUCCESS;
    }
    StatusCode execute() override;
 
  private:
    // pointer to Stat Service
    SmartIF<IStatSvc> m_stat; 
  };
} // end of namespace GaudiExamples
// ============================================================================
// the main execution method
// ============================================================================
StatusCode GaudiExamples::StatSvcAlg::execute() {
  Stat st1( m_stat, "counter1" );
  Stat st2( m_stat, "counter2" );
  Stat st3( m_stat, "counter3", 0.3 );
 
  Stat eff( m_stat, "eff", 0 < sin( 10 * st1->flag() ) );
  //
  st1 += 0.1;
  st1 -= 0.1000452;
  st2 += st1;
  ++st3;
  st2--;
 
  eff += 0 < cos( 20 * st2->flag() );
 
  //
  return StatusCode::SUCCESS;
}
// ============================================================================
// Factory:
// ============================================================================
using GaudiExamples::StatSvcAlg;
DECLARE_COMPONENT( StatSvcAlg )
// ============================================================================
// The END
// ============================================================================