create_generic_publisher.hpp

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// Copyright 2020, Apex.AI 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__CREATE_GENERIC_PUBLISHER_HPP_
#define RCLCPP__CREATE_GENERIC_PUBLISHER_HPP_
 
#include <memory>
#include <string>
#include <utility>
 
#include "rclcpp/generic_publisher.hpp"
#include "rclcpp/node_interfaces/node_topics_interface.hpp"
#include "rclcpp/publisher_options.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/typesupport_helpers.hpp"
 
namespace rclcpp
{
 
 
template<typename AllocatorT = std::allocator<void>>
std::shared_ptr<GenericPublisher> create_generic_publisher(
  rclcpp::node_interfaces::NodeTopicsInterface::SharedPtr topics_interface,
  const std::string & topic_name,
  const std::string & topic_type,
  const rclcpp::QoS & qos,
  const rclcpp::PublisherOptionsWithAllocator<AllocatorT> & options = (
    rclcpp::PublisherOptionsWithAllocator<AllocatorT>()
  )
)
{
  auto ts_lib = rclcpp::get_typesupport_library(topic_type, "rosidl_typesupport_cpp");
  auto pub = std::make_shared<GenericPublisher>(
    topics_interface->get_node_base_interface(),
    std::move(ts_lib),
    topic_name,
    topic_type,
    qos,
    options);
  topics_interface->add_publisher(pub, options.callback_group);
  return pub;
}
 
}  // namespace rclcpp
 
#endif  // RCLCPP__CREATE_GENERIC_PUBLISHER_HPP_