Arena.cxx

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
// $Id: Arena.cxx 470529 2011-11-24 23:54:22Z ssnyder $
#include "AthAllocators/Arena.h"
#include "AthAllocators/ArenaAllocatorBase.h"
 
namespace SG {
 
 
Arena::Arena (const std::string& name, ArenaHeader* header /*= 0*/)
  : ArenaBase (name),
    m_header (header)
{
  if (!m_header) {
    m_header = SG::ArenaHeader::defaultHeader();
  }
  m_header->addArena (this);
}
 
 
Arena::~Arena()
{
  m_header->delArena (this);
}
 
 
ArenaHeader* Arena::header()
{
  return m_header;
}
 
 
ArenaBase* Arena::makeCurrent()
{
  return m_header->setArena (this);
}
 
 
Arena::Push::Push (Arena& a)
  : m_header (a.header()),
    m_prev (a.makeCurrent())
{
}
 
 
Arena::Push::~Push()
{
  m_header->setArena (m_prev);
}
 
 
} // namespace SG