VtxTrackIndex.h

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// Copyright 2019-2020 CERN and copyright holders of ALICE O2.
// See https://alice-o2.web.cern.ch/copyright for details of the copyright holders.
// All rights not expressly granted are reserved.
//
// This software is distributed under the terms of the GNU General Public
// License v3 (GPL Version 3), copied verbatim in the file "COPYING".
//
// In applying this license CERN does not waive the privileges and immunities
// granted to it by virtue of its status as an Intergovernmental Organization
// or submit itself to any jurisdiction.
 
 
#ifndef O2_VERTEX_TRACK_INDEX
#define O2_VERTEX_TRACK_INDEX
 
#include "ReconstructionDataFormats/GlobalTrackID.h"
#include <iosfwd>
#include <string>
#include <array>
#include <string_view>
 
namespace o2
{
namespace dataformats
{
 
class VtxTrackIndex : public GlobalTrackID
{
 public:
  enum Flags : uint8_t {
    Contributor, // flag that it contributes to vertex fit
    Ambiguous,   // flag that attachment is ambiguous
    NFlags
  };
 
  using GlobalTrackID::GlobalTrackID;
  VtxTrackIndex() = default;
  VtxTrackIndex(const GlobalTrackID& src) : GlobalTrackID(src) {}
 
  bool isPVContributor() const { return testBit(Contributor); }
  void setPVContributor() { setBit(Contributor); }
 
  bool isAmbiguous() const { return testBit(Ambiguous); }
  void setAmbiguous() { setBit(Ambiguous); }
 
  ClassDefNV(VtxTrackIndex, 2);
};
 
} // namespace dataformats
} // namespace o2
 
namespace std
{
// defining std::hash for VtxTrackIndex to be used with std containers
template <>
struct hash<o2::dataformats::VtxTrackIndex> {
 public:
  size_t operator()(const o2::dataformats::VtxTrackIndex& id) const
  {
    return std::hash<o2::dataformats::GlobalTrackID>{}(id);
    //return id.getRawWOFlags();
  }
};
} // namespace std
 
#endif