.. _program_listing_file_include_rclcpp_lifecycle_managed_entity.hpp:

Program Listing for File managed_entity.hpp
===========================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_rclcpp_lifecycle_managed_entity.hpp>` (``include/rclcpp_lifecycle/managed_entity.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   // Copyright 2022 Open Source Robotics Foundation, Inc.
   //
   // Licensed under the Apache License, Version 2.0 (the "License");
   // you may not use this file except in compliance with the License.
   // You may obtain a copy of the License at
   //
   //     http://www.apache.org/licenses/LICENSE-2.0
   //
   // Unless required by applicable law or agreed to in writing, software
   // distributed under the License is distributed on an "AS IS" BASIS,
   // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   // See the License for the specific language governing permissions and
   // limitations under the License.
   
   #ifndef RCLCPP_LIFECYCLE__MANAGED_ENTITY_HPP_
   #define RCLCPP_LIFECYCLE__MANAGED_ENTITY_HPP_
   
   #include <atomic>
   
   #include "rclcpp_lifecycle/visibility_control.h"
   
   namespace rclcpp_lifecycle
   {
   
   class ManagedEntityInterface
   {
   public:
     RCLCPP_LIFECYCLE_PUBLIC
     virtual
     ~ManagedEntityInterface() {}
   
     RCLCPP_LIFECYCLE_PUBLIC
     virtual
     void
     on_activate() = 0;
   
     RCLCPP_LIFECYCLE_PUBLIC
     virtual
     void
     on_deactivate() = 0;
   };
   
   class SimpleManagedEntity : public ManagedEntityInterface
   {
   public:
     RCLCPP_LIFECYCLE_PUBLIC
     ~SimpleManagedEntity() override = default;
   
     RCLCPP_LIFECYCLE_PUBLIC
     void
     on_activate() override;
   
     RCLCPP_LIFECYCLE_PUBLIC
     void
     on_deactivate() override;
   
     RCLCPP_LIFECYCLE_PUBLIC
     bool
     is_activated() const;
   
   private:
     std::atomic<bool> activated_ = false;
   };
   
   }  // namespace rclcpp_lifecycle
   #endif  // RCLCPP_LIFECYCLE__MANAGED_ENTITY_HPP_