ITimelineSvc.h

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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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#ifndef GAUDIKERNEL_ITIMELINESVC_H
#define GAUDIKERNEL_ITIMELINESVC_H
 
#include <GaudiKernel/IService.h>
 
#include <string>
 
class EventContext;
struct TimelineEvent;
 
class GAUDI_API ITimelineSvc : virtual public IService {
 
public:
  DeclareInterfaceID( ITimelineSvc, 2, 0 );
 
  class TimelineRecorder final {
  public:
    TimelineRecorder() = default;
    TimelineRecorder( TimelineEvent& record, std::string alg, const EventContext& ctx );
 
    TimelineRecorder( const TimelineRecorder& )            = delete;
    TimelineRecorder& operator=( const TimelineRecorder& ) = delete;
    TimelineRecorder( TimelineRecorder&& other ) : m_record{ std::exchange( other.m_record, nullptr ) } {}
 
    TimelineRecorder& operator=( TimelineRecorder&& other ) {
      m_record = std::exchange( other.m_record, nullptr );
      return *this;
    }
 
    ~TimelineRecorder();
 
  private:
    TimelineEvent* m_record = nullptr;
  };
 
  virtual TimelineRecorder getRecorder( std::string alg, const EventContext& ctx ) = 0;
  // Augment a partially pre-filled TimelineEvent object with matching info
  virtual bool getTimelineEvent( TimelineEvent& ) const = 0;
  virtual bool isEnabled() const                        = 0;
};
 
#endif