SegMemSvc.h

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/* -*- C++ -*- */
 
/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef CONTROL_STOREGATE_SEGMEMSVC_H
#define CONTROL_STOREGATE_SEGMEMSVC_H 1
 
#include "GaudiKernel/Service.h"
#include "GaudiKernel/IIncidentListener.h"
#include "GaudiKernel/IIncidentSvc.h"
#include "GaudiKernel/MsgStream.h"
#include "GaudiKernel/ServiceHandle.h"
#include "AthAllocators/Arena.h"
 
#include <string>
 
 
class SegMemSvc: public extends<Service, IIncidentListener> {
 
public:
 
  
  enum LIFETIME {
    EVENT = 0,
    JOB = 1,
    INCIDENT = 2
  };
  
  virtual StatusCode initialize() override;
  virtual void handle(const Incident&) override;
 
 
 
 
  template <typename T> 
  T* allocate(SegMemSvc::LIFETIME, bool cache=true);
  
  template <typename T>
  bool del(T*);
 
  
  
  SegMemSvc( const std::string& name, ISvcLocator* svc ); 
  
  // Destructor.
  virtual ~SegMemSvc();
  
  
private:
  
  ServiceHandle<IIncidentSvc> p_incSvc;
 
  inline std::string cvt(SegMemSvc::LIFETIME life) {
    switch  (life) {
    case SegMemSvc::EVENT : return "EVENT";
    case SegMemSvc::JOB : return "JOB";
    case SegMemSvc::INCIDENT: return "INCIDENT";
    }
    return "UNKNOWN";
  }
 
  SG::ArenaHeader m_ahead_job, m_ahead_evt, m_ahead_inc;
  SG::Arena       m_arena_job, m_arena_evt, m_arena_inc;
 
 
};
 
 
#include "StoreGate/SegMemSvc.icc"
 
#endif