Program Listing for File one_per_locality.h

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//===------------------------------------------------------------*- C++ -*-===//
//
//                                     SHAD
//
//      The Scalable High-performance Algorithms and Data Structure Library
//
//===----------------------------------------------------------------------===//
//
// Copyright 2018 Battelle Memorial Institute
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy
// of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations
// under the License.
//
//===----------------------------------------------------------------------===//

#ifndef INCLUDE_SHAD_DATA_STRUCTURES_ONE_PER_LOCALITY_H_
#define INCLUDE_SHAD_DATA_STRUCTURES_ONE_PER_LOCALITY_H_

#include "shad/data_structures/abstract_data_structure.h"

namespace shad {

template <typename T>
class OnePerLocality : public AbstractDataStructure<OnePerLocality<T>> {
 public:
  using ObjectID = typename AbstractDataStructure<OnePerLocality<T>>::ObjectID;
  using SharedPtr =
      typename AbstractDataStructure<OnePerLocality<T>>::SharedPtr;

#ifdef DOXYGEN_IS_RUNNING
  template <typename... Args>
  static SharedPtr Create(Args... args);
#endif

  ObjectID GetGlobalID() const { return oid_; }

  T* const operator->() { return &localInstance_; }

  OnePerLocality<T>& operator=(const T& rhs) {
    localInstance_ = rhs;
    return *this;
  }

  explicit operator T() const { return localInstance_; }

 protected:
  template <typename... Args>
  explicit OnePerLocality(ObjectID oid, Args... args)
      : oid_{oid}, localInstance_{args...} {}

 private:
  template <typename>
  friend class AbstractDataStructure;

  ObjectID oid_;
  T localInstance_;
};

}  // namespace shad

#endif  // INCLUDE_SHAD_DATA_STRUCTURES_ONE_PER_LOCALITY_H_