text: /* MIT License
   *
   * Copyright (c) 2019 - 2020 Andreas Merkle <web@blue-andi.de>
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in all
   * copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   */
  
  /*******************************************************************************
      DESCRIPTION
  *******************************************************************************/
  /**
   * @brief  Task monitor
   * @author Andreas Merkle <web@blue-andi.de>
   *
   * @addtogroup common
   *
   * @{
   */
  
  #ifndef __TASK_MON_H__
  #define __TASK_MON_H__
  
  /******************************************************************************
   * Compile Switches
   *****************************************************************************/
  
  /******************************************************************************
   * Includes
   *****************************************************************************/
  #include <stdint.h>
  #include <SysMsgPlugin.h>
  #include <WString.h>
  
  /******************************************************************************
   * Macros
   *****************************************************************************/
  
  /******************************************************************************
   * Types and Classes
   *****************************************************************************/
  
  /**
   * Task monitor
   */
  class TaskMon
  {
  public:
  
      /**
       * Get task monitor instance.
       *
       * @return Task monitor instance
       */
      static TaskMon& getInstance()
      {
          return m_instance;
      }
  
      /**
       * Get current number of tasks and their properties.
       */
      void process();
  
      /** Processing cycle in ms. */
      static const uint32_t PROCESSING_CYCLE  = 60U * 1000U;
  
  private:
  
      static TaskMon  m_instance; /**< System message handler instance */
  
      SimpleTimer     m_timer;    /**< Timer used for cyclic processing. */
  
      /**
       * Constructs the task monitor.
       */
      TaskMon()
      {
      }
  
      /**
       * Destroys the task monitor.
       */
      ~TaskMon()
      {
          /* Will never be called. */
      }
  
      TaskMon(const TaskMon& taskMon);
      TaskMon& operator=(const TaskMon& taskMon);
  
      /**
       * Get task state as user friendly string.
       *
       * @return Task state name
       */
      String taskState2Str(eTaskState state);
  
      /**
       * Fill string up with spaces until given length is reached.
       *
       * @param[in] str   String, which to fill up
       * @param[in] len   Length of the result string
       *
       * @return Filled up string
       */
      String fillUpSpaces(const char* str, size_t len);
  };
  
  /******************************************************************************
   * Functions
   *****************************************************************************/
  
  #endif  /* __TASK_MON_H__ */
  
  /** @} */