ActsElementVector.h

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// This file's extension implies that it's C, but it's really -*- C++ -*-.
/*
 * Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration.
 */
#ifndef ACTSGEOMETRY_ACTSELEMENTVECTOR_H
#define ACTSGEOMETRY_ACTSELEMENTVECTOR_H
 
 
#include "ActsGeometry/ActsDetectorElement.h"
#include "CxxUtils/checker_macros.h"
#include <mutex>
 
 
class ActsElementVector
{
public:
  // The only thing we can do is add another element to the list.
  // Declared const so that the thread-safety checker won't complain ---
  // we lock the vector internally.
  void push_back (std::shared_ptr<const ActsDetectorElement> p) const
  {
    std::scoped_lock lock (m_mutex);
    m_vec.push_back (p);
  }
 
  // Allow access if we have a mutable reference
  std::vector<std::shared_ptr<const ActsDetectorElement>>& vector() {
    return m_vec;
  }
 
private:
  mutable std::vector<std::shared_ptr<const ActsDetectorElement>> m_vec ATLAS_THREAD_SAFE;
  mutable std::mutex m_mutex;
};
 
 
#endif // not ACTSGEOMETRY_ACTSELEMENTVECTOR_H