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include/mqtt_lwt.h 2.55 KB
31eece9b   Steven   added LWT ( last ...
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  /* ****************************************************************************
   * Copyright 2019 Open Systems Development BV                                 *
   *                                                                            *
   * 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.                                                  *
   * ***************************************************************************/
  #pragma once
  
  // std
  #include <string>
  
  namespace osdev {
  namespace components {
  namespace mqtt {
  
  /*!
   *  \brief  Class that holds LWT ( Last Will & Testament ) context.
   */
  class mqtt_LWT
  {
  public:
      /*!
       *  \brief Default CTor, empty LWT
       */
      mqtt_LWT()
          : m_topic()
          , m_message()
      {}
  
      /*!
       *  \brief  Constructor for LWT topic/message
       *  \param  topic    - The topic on which the LWT is published.
       *  \param  message  - The message published on broker disconnection.
       */
      mqtt_LWT( const std::string &topic, const std::string &message )
          : m_topic( topic )
          , m_message( message )
      {}
  
      const std::string& topic()   const { return m_topic; }
      const std::string& message() const { return m_message; }
  
  private:
      std::string m_topic;
      std::string m_message;
  };
  
  }   // End namespace mqtt
  }   // End namespace components
  }   // End namespace osdev