Line data    Source code

       1              : /********************************************************************************
       2              :  * Copyright (c) 2024 Accenture
       3              :  *
       4              :  * This program and the accompanying materials are made available under the
       5              :  * terms of the Apache License Version 2.0 which is available at
       6              :  * https://www.apache.org/licenses/LICENSE-2.0
       7              :  *
       8              :  * SPDX-License-Identifier: Apache-2.0
       9              :  ********************************************************************************/
      10              : 
      11              : /**
      12              :  * \ingroup async
      13              :  */
      14              : #pragma once
      15              : 
      16              : namespace async
      17              : {
      18              : /**
      19              :  * This is a template class that acts as collection (linked list)
      20              :  * of Tasks to be added to the FreeRTOS system.
      21              :  *
      22              :  * \tparam T The underlying implementing execute function.
      23              :  */
      24              : 
      25              : template<class T>
      26              : class StaticRunnable
      27              : {
      28              : protected:
      29              :     ~StaticRunnable() = default;
      30              : 
      31              : public:
      32              :     StaticRunnable();
      33              : 
      34              :     static void run();
      35              : 
      36              : private:
      37              :     T* _next;
      38              : 
      39              :     static T* _first;
      40              : };
      41              : 
      42              : template<class T>
      43              : T* StaticRunnable<T>::_first = nullptr;
      44              : 
      45              : /**
      46              :  * Class constructor.
      47              :  * On instance construction the new instance is added into
      48              :  * the inked list by adjusting the pointers _first and _next.
      49              :  */
      50              : template<class T>
      51           20 : StaticRunnable<T>::StaticRunnable() : _next(_first)
      52              : {
      53           20 :     _first = static_cast<T*>(this);
      54           20 : }
      55              : 
      56              : template<class T>
      57           20 : void StaticRunnable<T>::run()
      58              : {
      59           40 :     while (_first != nullptr)
      60              :     {
      61           20 :         T* const current = _first;
      62           20 :         _first           = _first->_next;
      63           20 :         current->execute();
      64              :     }
      65           20 : }
      66              : 
      67              : } // namespace async