ArenaHeader.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
 
/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id: ArenaHeader.h 470529 2011-11-24 23:54:22Z ssnyder $

 
 
#ifndef ATLALLOCATORS_ARENAHEADER_H
#define ATLALLOCATORS_ARENAHEADER_H
 
 
#include "AthAllocators/ArenaBase.h"
#include "GaudiKernel/EventContext.h"
#include <vector>
#include <cstdlib>
#include <string>
#include <iosfwd>
#include <mutex>
#include "boost/thread/tss.hpp"
 
 
class EventContext;
 
 
namespace SG {
 
 
class ArenaAllocatorBase;
class ArenaBase;
 

class ArenaHeader
{
public:
  ArenaHeader();
 

  ~ArenaHeader();
 

  LockedAllocator allocator (size_t i);
 

  LockedAllocator allocator (const EventContext& ctx, size_t i);
 

  ArenaBase* setArena (ArenaBase* arena);
 

  void addArena (ArenaBase* a);
 

  void setArenaForSlot (int slot, ArenaBase* a);
 

  void delArena (ArenaBase* a);
 

  void report (std::ostream& os) const;
 

  std::string reportStr () const;
 

  void reset();
 

  static ArenaHeader* defaultHeader();
 
 
private:
  boost::thread_specific_ptr<ArenaBase> m_arena;

  ArenaBase m_defaultArena;

  std::vector<ArenaBase*>  m_arenas;

  std::vector<ArenaBase*> m_slots;

  mutable std::mutex m_mutex;
};
 
 
} // namespace SG
 
 
#include "AthAllocators/ArenaHeader.icc"
 
 
 
#endif // not ATLALLOCATORS_ARENAHEADER_H