.. _program_listing_file_include_rclcpp_experimental_ros_message_intra_process_buffer.hpp:

Program Listing for File ros_message_intra_process_buffer.hpp
=============================================================

|exhale_lsh| :ref:`Return to documentation for file <file_include_rclcpp_experimental_ros_message_intra_process_buffer.hpp>` (``include/rclcpp/experimental/ros_message_intra_process_buffer.hpp``)

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

.. code-block:: cpp

   // Copyright 2021 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__EXPERIMENTAL__ROS_MESSAGE_INTRA_PROCESS_BUFFER_HPP_
   #define RCLCPP__EXPERIMENTAL__ROS_MESSAGE_INTRA_PROCESS_BUFFER_HPP_
   
   #include <memory>
   #include <string>
   
   #include "rcl/error_handling.h"
   
   #include "rclcpp/any_subscription_callback.hpp"
   #include "rclcpp/context.hpp"
   #include "rclcpp/experimental/subscription_intra_process_base.hpp"
   #include "tracetools/tracetools.h"
   
   namespace rclcpp
   {
   namespace experimental
   {
   
   template<
     typename RosMessageT,
     typename Alloc = std::allocator<void>,
     typename Deleter = std::default_delete<void>
   >
   class SubscriptionROSMsgIntraProcessBuffer : public SubscriptionIntraProcessBase
   {
   public:
     using ROSMessageTypeAllocatorTraits = allocator::AllocRebind<RosMessageT, Alloc>;
     using ROSMessageTypeAllocator = typename ROSMessageTypeAllocatorTraits::allocator_type;
     using ROSMessageTypeDeleter = allocator::Deleter<ROSMessageTypeAllocator, RosMessageT>;
   
     using ConstMessageSharedPtr = std::shared_ptr<const RosMessageT>;
     using MessageUniquePtr = std::unique_ptr<RosMessageT, ROSMessageTypeDeleter>;
   
     SubscriptionROSMsgIntraProcessBuffer(
       rclcpp::Context::SharedPtr context,
       const std::string & topic_name,
       const rclcpp::QoS & qos_profile)
     : SubscriptionIntraProcessBase(context, topic_name, qos_profile)
     {}
   
     virtual ~SubscriptionROSMsgIntraProcessBuffer()
     {}
   
     virtual void
     provide_intra_process_message(ConstMessageSharedPtr message) = 0;
   
     virtual void
     provide_intra_process_message(MessageUniquePtr message) = 0;
   };
   
   }  // namespace experimental
   }  // namespace rclcpp
   
   #endif  // RCLCPP__EXPERIMENTAL__ROS_MESSAGE_INTRA_PROCESS_BUFFER_HPP_