Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <utility>
       7             : 
       8             : #include "DataStructures/DataBox/DataBox.hpp"
       9             : #include "DataStructures/LinkedMessageId.hpp"
      10             : #include "DataStructures/LinkedMessageQueue.hpp"
      11             : #include "ParallelAlgorithms/Actions/FunctionsOfTimeAreReady.hpp"
      12             : #include "Utilities/ErrorHandling/Error.hpp"
      13             : #include "Utilities/Gsl.hpp"
      14             : 
      15             : /// \cond
      16             : namespace domain::Tags {
      17             : struct FunctionsOfTime;
      18             : }  // namespace domain::Tags
      19             : namespace Parallel {
      20             : template <typename Metavariables>
      21             : struct GlobalCache;
      22             : }  // namespace Parallel
      23             : /// \endcond
      24             : 
      25             : namespace Actions {
      26             : /// \ingroup ActionsGroup
      27             : /// \brief Add data to a LinkedMessageQueue
      28             : ///
      29             : /// Add the passed `id_and_previous` and `message` to the queue
      30             : /// `QueueTag` in the `LinkedMessageQueue` stored in the DataBox tag
      31             : /// `LinkedMessageQueueTag`.  Then, for each ID for which the message
      32             : /// queue has all required messages, call `Processor::apply`.  The
      33             : /// signature for an `apply` function for a message queue containing
      34             : /// `Queue1` and `Queue2` with ID type `int` is:
      35             : ///
      36             : /// \snippet Test_UpdateMessageQueue.cpp Processor::apply
      37             : template <typename QueueTag, typename LinkedMessageQueueTag, typename Processor>
      38           1 : struct UpdateMessageQueue {
      39             :   template <typename ParallelComponent, typename DbTags, typename Metavariables,
      40             :             typename ArrayIndex>
      41           0 :   static void apply(
      42             :       db::DataBox<DbTags>& box, Parallel::GlobalCache<Metavariables>& cache,
      43             :       const ArrayIndex& array_index,
      44             :       const LinkedMessageId<typename LinkedMessageQueueTag::type::IdType>&
      45             :           id_and_previous,
      46             :       typename QueueTag::type message) {
      47             :     if (not domain::functions_of_time_are_ready_simple_action_callback<
      48             :             domain::Tags::FunctionsOfTime, UpdateMessageQueue>(
      49             :             cache, array_index, std::add_pointer_t<ParallelComponent>{nullptr},
      50             :             id_and_previous.id, std::nullopt, id_and_previous, message)) {
      51             :       return;
      52             :     }
      53             :     auto& queue =
      54             :         db::get_mutable_reference<LinkedMessageQueueTag>(make_not_null(&box));
      55             :     queue.template insert<QueueTag>(id_and_previous, std::move(message));
      56             :     while (auto id = queue.next_ready_id()) {
      57             :       Processor::apply(make_not_null(&box), cache, array_index, *id,
      58             :                        queue.extract());
      59             :     }
      60             :   }
      61             : };
      62             : }  // namespace Actions