.. _program_listing_file_include_rclcpp_event.hpp:

Program Listing for File event.hpp
==================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_rclcpp_event.hpp>` (``include/rclcpp/event.hpp``)

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

.. code-block:: cpp

   // Copyright 2016 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__EVENT_HPP_
   #define RCLCPP__EVENT_HPP_
   
   #include <atomic>
   #include <memory>
   
   #include "rclcpp/macros.hpp"
   #include "rclcpp/visibility_control.hpp"
   
   namespace rclcpp
   {
   
   class Event
   {
   public:
     RCLCPP_SMART_PTR_DEFINITIONS_NOT_COPYABLE(Event)
   
     
     RCLCPP_PUBLIC
     Event();
   
   
     RCLCPP_PUBLIC
     bool
     set();
   
   
     RCLCPP_PUBLIC
     bool
     check();
   
   
     RCLCPP_PUBLIC
     bool
     check_and_clear();
   
   private:
     RCLCPP_DISABLE_COPY(Event)
   
     std::atomic_bool state_;
   };
   
   }  // namespace rclcpp
   
   #endif  // RCLCPP__EVENT_HPP_