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Add lifecycle subscriber and refactor create_subscription and subscri…
…ption_factory as necessary. Signed-of-by: Adam Milner <[email protected]> Signed-off-by: Adam Milner <[email protected]>
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rclcpp_lifecycle/include/rclcpp_lifecycle/lifecycle_subscriber.hpp
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// Copyright 2023 Elroy Air, 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. | ||
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#ifndef RCLCPP_LIFECYCLE__LIFECYCLE_SUBSCRIPTION_HPP_ | ||
#define RCLCPP_LIFECYCLE__LIFECYCLE_SUBSCRIPTION_HPP_ | ||
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// #include <functional> | ||
// #include <memory> | ||
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#include "rclcpp/subscription.hpp" | ||
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namespace rclcpp_lifecycle | ||
{ | ||
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/// @brief Child class of rclcpp::Subscription that adds lifecycle functionality. | ||
/** | ||
* This class is a child class of rclcpp::Subscription that adds a lifecycle | ||
* check to the callback function. If the node is in an inactive state, the | ||
* callback will not be called. | ||
*/ | ||
template< | ||
typename MessageT, | ||
typename AllocatorT = std::allocator<void>, | ||
typename SubscribedT = typename rclcpp::TypeAdapter<MessageT>::custom_type, | ||
typename ROSMessageT = typename rclcpp::TypeAdapter<MessageT>::ros_message_type, | ||
typename MessageMemoryStrategyT = rclcpp::message_memory_strategy::MessageMemoryStrategy< | ||
ROSMessageT, | ||
AllocatorT | ||
>> | ||
class LifecycleSubscription : public SimpleManagedEntity, | ||
public rclcpp::Subscription<MessageT, AllocatorT> | ||
{ | ||
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private: | ||
using SubscriptionTopicStatisticsSharedPtr = | ||
std::shared_ptr<rclcpp::topic_statistics::SubscriptionTopicStatistics<ROSMessageT>>; | ||
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public: | ||
LifecycleSubscription( | ||
rclcpp::node_interfaces::NodeBaseInterface * node_base, | ||
const rosidl_message_type_support_t & type_support_handle, | ||
const std::string & topic_name, | ||
const rclcpp::QoS & qos, | ||
rclcpp::AnySubscriptionCallback<MessageT, AllocatorT> callback, | ||
const rclcpp::SubscriptionOptionsWithAllocator<AllocatorT> & options, | ||
typename MessageMemoryStrategyT::SharedPtr message_memory_strategy, | ||
SubscriptionTopicStatisticsSharedPtr subscription_topic_statistics = nullptr) | ||
: rclcpp::Subscription<MessageT>( | ||
node_base, | ||
type_support_handle, | ||
topic_name, | ||
qos, | ||
callback, | ||
options, | ||
message_memory_strategy, | ||
subscription_topic_statistics) | ||
{ | ||
} | ||
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/// Check if we need to handle the message, and execute the callback if we do. | ||
virtual void handle_message( | ||
std::shared_ptr<void> & message, const rclcpp::MessageInfo & message_info) override | ||
{ | ||
if (!this->is_activated()) { | ||
return; | ||
} | ||
rclcpp::Subscription<MessageT>::handle_message(message, message_info); | ||
} | ||
}; | ||
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} // namespace rclcpp_lifecycle | ||
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#endif // RCLCPP_LIFECYCLE__LIFECYCLE_SUBSCRIPTION_HPP_ |