topology_accessor.hh

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/*
    @@@@@@@@  @@           @@@@@@   @@@@@@@@ @@
   /@@/////  /@@          @@////@@ @@////// /@@
   /@@       /@@  @@@@@  @@    // /@@       /@@
   /@@@@@@@  /@@ @@///@@/@@       /@@@@@@@@@/@@
   /@@////   /@@/@@@@@@@/@@       ////////@@/@@
   /@@       /@@/@@//// //@@    @@       /@@/@@
   /@@       @@@//@@@@@@ //@@@@@@  @@@@@@@@ /@@
   //       ///  //////   //////  ////////  //

   Copyright (c) 2016, Triad National Security, LLC
   All rights reserved.
                                                                              */
#pragma once

#if !defined(__FLECSI_PRIVATE__)
#error Do not include this file directly!
#endif

#include "flecsi/exec/launch.hh"
#include <cstddef> // size_t

namespace flecsi {
namespace data {

template<class T, std::size_t Priv>
struct topology_accessor
  : T::template interface<typename T::core::template access<Priv>> {
  using core = typename T::core::template access<Priv>;
  static_assert(sizeof(typename T::template interface<core>) == sizeof(core),
    "topology interfaces may not add data members");

  explicit topology_accessor() = default;
}; // struct topology_accessor

} // namespace data

template<class T, std::size_t P>
struct exec::detail::task_param<data::topology_accessor<T, P>> {
  static auto replace(const typename T::slot &) {
    return data::topology_accessor<T, P>();
  }
};
} // namespace flecsi