AuxTypes.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
/*
  Copyright (C) 2002-2024 CERN for the benefit of the ATLAS collaboration
*/
#ifndef ATHCONTAINERSINTERFACES_AUXTYPES_H
#define ATHCONTAINERSINTERFACES_AUXTYPES_H
 
 
#include <cstddef>
#include "CxxUtils/ConcurrentBitset.h"
#include "CxxUtils/bitmask.h"
 
 
namespace SG {
 
typedef size_t auxid_t;
 
static const auxid_t null_auxid = static_cast<auxid_t> (-1);
 
class AuxTypePlaceholder {};
 
static const auxid_t auxid_set_size_hint = 2048;
 
 
class auxid_set_t
  : public CxxUtils::ConcurrentBitset
{
public:
  using CxxUtils::ConcurrentBitset::ConcurrentBitset;
  auxid_set_t (size_t nbits = auxid_set_size_hint)
    : CxxUtils::ConcurrentBitset (nbits)
  {
  }
};
 
 
enum AuxVarFlags {
  None   = 0x00,
 
  Atomic = 0x01,
 
  Linked = 0x02,
 
  // These flags control the behavior of findAuxID() but are not
  // stored with the variable.
  SkipNameCheck = 0x80,
 
  ATH_BITMASK
};
 
 
} // namespace SG
 
 
 
#endif // not ATHCONTAINERSINTERFACES_AUXTYPES_H