ArenaBase.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
 
/*
  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id: ArenaBase.h 470529 2011-11-24 23:54:22Z ssnyder $

 
#ifndef ATLALLOCATORS_ARENABASE_H
#define ATLALLOCATORS_ARENABASE_H
 
 
#include "AthAllocators/ArenaAllocatorBase.h"
#include "AthAllocators/LockedAllocator.h"
#include <iosfwd>
#include <string>
#include <vector>
#include <memory>
#include <mutex>
 
 
namespace SG {
 

class ArenaBase
{
public:
  ArenaBase (const std::string& name = "");
 

  virtual ~ArenaBase();
 
 
  ArenaBase (const ArenaBase&) = delete;
  ArenaBase& operator= (const ArenaBase&) = delete;
  
 

  LockedAllocator allocator (size_t i);
 

  void reset();
 

  void erase();
 

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

  ArenaAllocatorBase::Stats stats() const;
 

  const std::string& name() const;
 
 
private:
  typedef std::lock_guard<std::mutex> lock_t;
 

  ArenaAllocatorBase* makeAllocator (size_t i);
 

  struct AllocEntry
  {
    std::unique_ptr<ArenaAllocatorBase> m_alloc;
    std::unique_ptr<std::mutex> m_mutex;
  };
  std::vector<AllocEntry> m_allocs;

  std::string m_name;

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