ChronoAuditor.cpp

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* (c) Copyright 1998-2025 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 <Gaudi/Auditor.h>
#include <GaudiKernel/IChronoStatSvc.h>

class ChronoAuditor : public Gaudi::Auditor {
public:
  using Auditor::Auditor;
 
  StatusCode initialize() override;
 
private:
  void before( std::string const& evt, std::string const& caller, EventContext const& ) override;

  void after( std::string const& evt, std::string const& caller, EventContext const&, const StatusCode& sc ) override;

  std::string i_id( std::string const& evt, std::string_view caller ) { return std::string{ caller } + ":" + evt; }
 
  SmartIF<IChronoStatSvc>& chronoSvc() { return m_chronoSvc; }
  SmartIF<IChronoStatSvc>  m_chronoSvc;
};
 
DECLARE_COMPONENT( ChronoAuditor )
 
StatusCode ChronoAuditor::initialize() {
  return Auditor::initialize().andThen( [&]() -> StatusCode {
    m_chronoSvc = serviceLocator()->service( "ChronoStatSvc" );
    if ( !m_chronoSvc.get() ) {
      error() << "Cannot get ChronoStatSvc" << endmsg;
      return StatusCode::FAILURE;
    }
    return StatusCode::SUCCESS;
  } );
}
 
void ChronoAuditor::before( std::string const& evt, std::string const& caller, EventContext const& ) {
  chronoSvc()->chronoStart( i_id( evt, caller ) );
}
 
void ChronoAuditor::after( std::string const& evt, std::string const& caller, EventContext const&, const StatusCode& ) {
  chronoSvc()->chronoStop( i_id( evt, caller ) );
}