basic ipc implementation from alsora/new_ipc_proposal

Signed-off-by: alberto <alberto.soragna@gmail.com> better use of node_topic create subscription Signed-off-by: alberto <alberto.soragna@gmail.com> added intra process manager test Signed-off-by: alberto <alberto.soragna@gmail.com> fixed ring buffer and added test Signed-off-by: alberto <alberto.soragna@gmail.com> added intra process buffer test Signed-off-by: alberto <alberto.soragna@gmail.com> added intra process buffer test Signed-off-by: alberto <alberto.soragna@gmail.com> Signed-off-by: alberto <alberto.soragna@gmail.com> removed intra-process methods from subscription base Signed-off-by: alberto <alberto.soragna@gmail.com> using lock_guard instead of unique_lock, renamed var without camel case Signed-off-by: alberto <alberto.soragna@gmail.com> using unordered set and references in intra process manager Signed-off-by: alberto <alberto.soragna@gmail.com> subscription intra-process does not depend anymore on subscription, but has a copy of the callback Signed-off-by: alberto <alberto.soragna@gmail.com> changed buffer API to use rvo Signed-off-by: Alberto <alberto.soragna@gmail.com> avoid copying shared_ptr Signed-off-by: alberto <alberto.soragna@gmail.com> revert not needed changes to create_subscription Signed-off-by: alberto <alberto.soragna@gmail.com> updated tests according to new buffer APIs Signed-off-by: alberto <alberto.soragna@gmail.com> updated types in ring buffer implementation avoid using uint32_t Signed-off-by: alberto <alberto.soragna@gmail.com> using unique ptr for buffers in subscription_intra_process Signed-off-by: alberto <alberto.soragna@gmail.com> added missing std::move in subscription_intra_process constructor Signed-off-by: alberto <alberto.soragna@gmail.com> use consisting names for ring_buffer_implementation members Signed-off-by: alberto <alberto.soragna@gmail.com> addressing typos, one-liners and similar from ivanpauno review Signed-off-by: alberto <alberto.soragna@gmail.com> moved subscription_intra_process_base to its own files and moved non templated method from derived class Signed-off-by: alberto <alberto.soragna@gmail.com> removed forward declarations, fixed include subscription_intra_process_base Signed-off-by: alberto <alberto.soragna@gmail.com> removed member variable from do_intra_process_publish signature Signed-off-by: alberto <alberto.soragna@gmail.com> declare public before private in intra_process_manager_impl Signed-off-by: alberto <alberto.soragna@gmail.com> made matches_any_intra_process_publishers const Signed-off-by: alberto <alberto.soragna@gmail.com> using const reference in get_all_matching_publishers Signed-off-by: alberto <alberto.soragna@gmail.com> added deleter and alloc templates in intra_process_buffer Signed-off-by: alberto <alberto.soragna@gmail.com> added RCLCPP_WARN to intra_process_manager_impl Signed-off-by: alberto <alberto.soragna@gmail.com> passing context from node to subscription_intra_process Signed-off-by: alberto <alberto.soragna@gmail.com> using allocators in intra_process_manager Signed-off-by: alberto <alberto.soragna@gmail.com> use size_t instead of int in ring buffer indices Signed-off-by: alberto <alberto.soragna@gmail.com> creating buffer inside subscription_intra_process constructor Signed-off-by: alberto <alberto.soragna@gmail.com> fix lint errors Signed-off-by: alberto <alberto.soragna@gmail.com> throw error if trying to dequeue when buffer empty; remove duplicated methods in intra_process_buffer Signed-off-by: alberto <alberto.soragna@gmail.com> added todo for creating an rmw function for checking qos compatibility Signed-off-by: alberto <alberto.soragna@gmail.com> test fixes Signed-off-by: alberto <alberto.soragna@gmail.com> refactored intra_process_manager, removed ipm impl Signed-off-by: alberto <alberto.soragna@gmail.com> added mutex in intra_process_manager add_* methods Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> added allocator to intra_process_buffer Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> added invalid intra_process qos test for subscription Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> throw error if history size is 0 with keep last and ipc Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> using allocator when creating unique_ptr from shared_ptr Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> adding deleter template argument to intra_process buffer Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> fix linter Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> throw error with callbackT different from messageT Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> updated deleter template argument in subscription factory Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> Fix typo in test fixture tear down method name (ros2#787) Signed-off-by: Jacob Perron <jacob@openrobotics.org> Add free function for creating service clients (ros2#788) Equivalent to the free function for creating a service. Resolves ros2#768 Signed-off-by: Jacob Perron <jacob@openrobotics.org> Cmake infrastructure for creating components (ros2#784) *cmake macro to create components for libraries with multiple nodes Signed-off-by: Siddharth Kucheria <kucheria@usc.edu> Allow registering multiple on_parameters_set_callback (ros2#772) Signed-off-by: ivanpauno <ivanpauno@ekumenlabs.com> fix for multiple nodes not being recognized (ros2#790) Signed-off-by: Siddharth Kucheria <kucheria@usc.edu> Remove non-package from ament_target_dependencies() (ros2#793) Signed-off-by: Shane Loretz <sloretz@osrfoundation.org> fix linter issue (ros2#795) Signed-off-by: Siddharth Kucheria <kucheria@usc.edu> Make TimeSource ignore use_sim_time events coming from other nodes. (ros2#799) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> passing deleter template parameter Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> small fixes for failing tests Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> fixed imports in test_intra_process_manager Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> using RCLCPP_SMART_PTR_ALIASES_ONLY and RCLCPP_PUBLIC macros Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> added RCLCPP_PUBLIC macros and virtual destructor to sub intra_process base Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> added unique_ptr alias to macros Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> updated test_intra_process_manager.cpp Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com> remove mock msgs from rclcpp (ros2#800) Signed-off-by: Karsten Knese <karsten@openrobotics.org> Add line break after first open paren in multiline function call (ros2#785) * Add line break after first open paren in multiline function call as per developer guide: https://index.ros.org/doc/ros2/Contributing/Developer-Guide/#open-versus-cuddled-braces see ament/ament_lint#148 Signed-off-by: Dan Rose <dan@digilabs.io> Fix dedent when first function argument starts with a brace Signed-off-by: Dan Rose <dan@digilabs.io> Line break with multiline if condition Remove line breaks where allowed. Signed-off-by: Dan Rose <dan@digilabs.io> Fixup after rebase Signed-off-by: Dan Rose <dan@digilabs.io> Fixup again after reverting indent_paren_open_brace Signed-off-by: Dan Rose <dan@digilabs.io> * Revert comment spacing change, condense some lines Signed-off-by: Dan Rose <dan@digilabs.io> Adapt to '--ros-args ... [--]'-based ROS args extraction (ros2#816) * Use --ros-args to deal with node arguments in rclcpp. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Document implicit --ros-args flag in NodeOptions::arguments(). Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Add missing size_t to int cast. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Only add implicit --ros-args flag if not present already. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Add some rclcpp::NodeOptions test coverage. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Address peer review comments. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Please cpplint and uncrustify. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> Guard against making multiple result requests for a goal handle (ros2#808) This fixes a runtime error caused by a race condition when making consecutive requests for the result. Specifically, this happens if the user provides a result callback when sending a goal and then calls async_get_result shortly after. Resolves ros2#783 Signed-off-by: Jacob Perron <jacob@openrobotics.org> Explain return value of spin_until_future_complete (ros2#792) Signed-off-by: Dan Rose <dan@digilabs.io> Allow passing logger by const ref (ros2#820) Signed-off-by: Karsten Knese <karsten@openrobotics.org> Delete unnecessary call for get_node_by_group (ros2#823) Signed-off-by: Tomoya.Fujita <Tomoya.Fujita@sony.com> Fix get_node_interfaces functions taking a pointer (ros2#821) Signed-off-by: ivanpauno <ivanpauno@ekumenlabs.com> add callback group as member variable and constructor arg (ros2#811) Signed-off-by: bpwilcox <bpwilcox@eng.ucsd.edu> remove callback group as member variable Wrap documentation examples in code blocks (ros2#830) This makes the code examples easier to read in the generated documentation. Signed-off-by: Jacob Perron <jacob@openrobotics.org> Crash in callback group pointer vector iterator (ros2#814) Signed-off-by: Guillaume Autran <gautran@clearpath.ai> add mutex in add/remove_node and wait_for_work to protect concurrent use/change of memory_strategy_ (ros2#837) Signed-off-by: Dirk Thomas <dirk-thomas@users.noreply.github.com> Fix hang with timers in MultiThreadedExecutor (ros2#835) (ros2#836) Signed-off-by: Todd Malsbary <todd.malsbary@intel.com> Use of -r/--remap flags where appropriate. (ros2#834) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> Force explicit --ros-args in NodeOptions::arguments(). (ros2#845) Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> Fail on invalid and unknown ROS specific arguments (ros2#842) * Fail on invalid and unknown ROS specific arguments. Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Revert changes to utilities.hpp in rclcpp Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> * Fully revert change to utilities.hpp Signed-off-by: Michel Hidalgo <michel@ekumenlabs.com> Fix typo in deprecated warning. (ros2#848) "it's" instead of its Signed-off-by: Luca Della Vedova <luca@openrobotics.org> Add throwing parameter name if parameter is not set (ros2#833) * added throwing parameter name if parameter is not set Signed-off-by: Alex <cvbn127@gmail.com> Signed-off-by: ivanpauno <ivanpauno@ekumenlabs.com> check valid timer handler 1st to reduce the time window for scan. (ros2#841) Signed-off-by: Tomoya.Fujita <Tomoya.Fujita@sony.com> remove features and related code which were deprecated in dashing (ros2#852) Signed-off-by: William Woodall <william@osrfoundation.org> reset error message before setting a new one, embed the original one (ros2#854) Signed-off-by: Dirk Thomas <dirk-thomas@users.noreply.github.com> restored virtual destructor in publisher_base Signed-off-by: Soragna, Alberto <alberto.soragna@gmail.com>
alsora · Oct 19, 2019 · 60deefe · 60deefe
1 parent 8fd9a0a
commit 60deefe
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Showing 38 changed files with 2,256 additions and 2,401 deletions.
diff --git a/rclcpp/CMakeLists.txt b/rclcpp/CMakeLists.txt
@@ -47,7 +47,6 @@ set(${PROJECT_NAME}_SRCS
   src/rclcpp/graph_listener.cpp
   src/rclcpp/init_options.cpp
   src/rclcpp/intra_process_manager.cpp
-  src/rclcpp/intra_process_manager_impl.cpp
   src/rclcpp/logger.cpp
   src/rclcpp/memory_strategies.cpp
   src/rclcpp/memory_strategy.cpp
@@ -75,6 +74,7 @@ set(${PROJECT_NAME}_SRCS
   src/rclcpp/service.cpp
   src/rclcpp/signal_handler.cpp
   src/rclcpp/subscription_base.cpp
+  src/rclcpp/subscription_intra_process_base.cpp
   src/rclcpp/time.cpp
   src/rclcpp/time_source.cpp
   src/rclcpp/timer.cpp
@@ -200,25 +200,36 @@ if(BUILD_TESTING)
       "rosidl_typesupport_cpp"
     )
   endif()
-  ament_add_gtest(test_mapped_ring_buffer test/test_mapped_ring_buffer.cpp)
-  if(TARGET test_mapped_ring_buffer)
-    ament_target_dependencies(test_mapped_ring_buffer
+  ament_add_gmock(test_intra_process_manager test/test_intra_process_manager.cpp)
+  if(TARGET test_intra_process_manager)
+    ament_target_dependencies(test_intra_process_manager
       "rcl"
       "rcl_interfaces"
       "rmw"
       "rosidl_generator_cpp"
       "rosidl_typesupport_cpp"
     )
+    target_link_libraries(test_intra_process_manager ${PROJECT_NAME})
   endif()
-  ament_add_gtest(test_intra_process_manager test/test_intra_process_manager.cpp)
-  if(TARGET test_intra_process_manager)
-    ament_target_dependencies(test_intra_process_manager
-      "rcl"
+  ament_add_gtest(test_ring_buffer_implementation test/test_ring_buffer_implementation.cpp)
+  if(TARGET test_ring_buffer_implementation)
+    ament_target_dependencies(test_ring_buffer_implementation
+      "rcl_interfaces"
+      "rmw"
+      "rosidl_generator_cpp"
+      "rosidl_typesupport_cpp"
+    )
+    target_link_libraries(test_ring_buffer_implementation ${PROJECT_NAME})
+  endif()
+  ament_add_gtest(test_intra_process_buffer test/test_intra_process_buffer.cpp)
+  if(TARGET test_intra_process_buffer)
+    ament_target_dependencies(test_intra_process_buffer
       "rcl_interfaces"
       "rmw"
       "rosidl_generator_cpp"
       "rosidl_typesupport_cpp"
     )
+    target_link_libraries(test_intra_process_buffer ${PROJECT_NAME})
   endif()
 
   ament_add_gtest(test_loaned_message test/test_loaned_message.cpp)

diff --git a/rclcpp/include/rclcpp/any_subscription_callback.hpp b/rclcpp/include/rclcpp/any_subscription_callback.hpp
@@ -227,7 +227,7 @@ class AnySubscriptionCallback
     TRACEPOINT(callback_end, (const void *)this);
   }
 
-  bool use_take_shared_method()
+  bool use_take_shared_method() const
   {
     return const_shared_ptr_callback_ || const_shared_ptr_with_info_callback_;
   }

diff --git a/...src/rclcpp/intra_process_manager_impl.cpp → ...pp/buffers/buffer_implementation_base.hpp b/...src/rclcpp/intra_process_manager_impl.cpp → ...pp/buffers/buffer_implementation_base.hpp
@@ -1,4 +1,4 @@
-// Copyright 2015 Open Source Robotics Foundation, Inc.
+// Copyright 2019 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.
@@ -12,12 +12,26 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-#include "rclcpp/intra_process_manager_impl.hpp"
+#ifndef RCLCPP__BUFFERS__BUFFER_IMPLEMENTATION_BASE_HPP_
+#define RCLCPP__BUFFERS__BUFFER_IMPLEMENTATION_BASE_HPP_
 
-#include <memory>
+namespace rclcpp
+{
+namespace intra_process_buffer
+{
 
-rclcpp::intra_process_manager::IntraProcessManagerImplBase::SharedPtr
-rclcpp::intra_process_manager::create_default_impl()
+template<typename BufferT>
+class BufferImplementationBase
 {
-  return std::make_shared<IntraProcessManagerImpl<>>();
-}
+public:
+  virtual BufferT dequeue() = 0;
+  virtual void enqueue(BufferT request) = 0;
+
+  virtual void clear() = 0;
+  virtual bool has_data() const = 0;
+};
+
+}  // namespace intra_process_buffer
+}  // namespace rclcpp
+
+#endif  // RCLCPP__BUFFERS__BUFFER_IMPLEMENTATION_BASE_HPP_
diff --git a/rclcpp/include/rclcpp/buffers/intra_process_buffer.hpp b/rclcpp/include/rclcpp/buffers/intra_process_buffer.hpp
@@ -0,0 +1,230 @@
+// Copyright 2019 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__BUFFERS__INTRA_PROCESS_BUFFER_HPP_
+#define RCLCPP__BUFFERS__INTRA_PROCESS_BUFFER_HPP_
+
+#include <memory>
+#include <type_traits>
+#include <utility>
+
+#include "rclcpp/allocator/allocator_common.hpp"
+#include "rclcpp/allocator/allocator_deleter.hpp"
+#include "rclcpp/buffers/buffer_implementation_base.hpp"
+
+namespace rclcpp
+{
+namespace intra_process_buffer
+{
+
+class IntraProcessBufferBase
+{
+public:
+  RCLCPP_SMART_PTR_ALIASES_ONLY(IntraProcessBufferBase)
+
+  virtual void clear() = 0;
+
+  virtual bool has_data() const = 0;
+  virtual bool use_take_shared_method() const = 0;
+};
+
+template<
+  typename MessageT,
+  typename Alloc = std::allocator<void>,
+  typename MessageDeleter = std::default_delete<MessageT>>
+class IntraProcessBuffer : public IntraProcessBufferBase
+{
+public:
+  RCLCPP_SMART_PTR_ALIASES_ONLY(IntraProcessBuffer)
+
+  using MessageUniquePtr = std::unique_ptr<MessageT, MessageDeleter>;
+  using MessageSharedPtr = std::shared_ptr<const MessageT>;
+
+  virtual void add_shared(MessageSharedPtr msg) = 0;
+  virtual void add_unique(MessageUniquePtr msg) = 0;
+
+  virtual MessageSharedPtr consume_shared() = 0;
+  virtual MessageUniquePtr consume_unique() = 0;
+};
+
+template<
+  typename MessageT,
+  typename Alloc = std::allocator<void>,
+  typename MessageDeleter = std::default_delete<MessageT>,
+  typename BufferT = std::unique_ptr<MessageT>>
+class TypedIntraProcessBuffer : public IntraProcessBuffer<MessageT, Alloc, MessageDeleter>
+{
+public:
+  RCLCPP_SMART_PTR_DEFINITIONS(TypedIntraProcessBuffer)
+
+  using MessageAllocTraits = allocator::AllocRebind<MessageT, Alloc>;
+  using MessageAlloc = typename MessageAllocTraits::allocator_type;
+  using MessageUniquePtr = std::unique_ptr<MessageT, MessageDeleter>;
+  using MessageSharedPtr = std::shared_ptr<const MessageT>;
+
+  TypedIntraProcessBuffer(
+    std::unique_ptr<BufferImplementationBase<BufferT>> buffer_impl,
+    std::shared_ptr<Alloc> allocator = nullptr)
+  {
+    bool valid_type = (std::is_same<BufferT, MessageSharedPtr>::value ||
+      std::is_same<BufferT, MessageUniquePtr>::value);
+    if (!valid_type) {
+      throw std::runtime_error("Creating TypedIntraProcessBuffer with not valid BufferT");
+    }
+
+    buffer_ = std::move(buffer_impl);
+
+    if (!allocator) {
+      message_allocator_ = std::make_shared<MessageAlloc>();
+    } else {
+      message_allocator_ = std::make_shared<MessageAlloc>(*allocator.get());
+    }
+  }
+
+  void add_shared(MessageSharedPtr msg)
+  {
+    add_shared_impl<BufferT>(std::move(msg));
+  }
+
+  void add_unique(MessageUniquePtr msg)
+  {
+    buffer_->enqueue(std::move(msg));
+  }
+
+  MessageSharedPtr consume_shared()
+  {
+    return consume_shared_impl<BufferT>();
+  }
+
+  MessageUniquePtr consume_unique()
+  {
+    return consume_unique_impl<BufferT>();
+  }
+
+  bool has_data() const
+  {
+    return buffer_->has_data();
+  }
+
+  void clear()
+  {
+    buffer_->clear();
+  }
+
+  bool use_take_shared_method() const
+  {
+    return std::is_same<BufferT, MessageSharedPtr>::value;
+  }
+
+private:
+  std::unique_ptr<BufferImplementationBase<BufferT>> buffer_;
+
+  std::shared_ptr<MessageAlloc> message_allocator_;
+
+  // MessageSharedPtr to MessageSharedPtr
+  template<typename DestinationT>
+  typename std::enable_if<
+    std::is_same<DestinationT, MessageSharedPtr>::value
+  >::type
+  add_shared_impl(MessageSharedPtr shared_msg)
+  {
+    buffer_->enqueue(std::move(shared_msg));
+  }
+
+  // MessageSharedPtr to MessageUniquePtr
+  template<typename DestinationT>
+  typename std::enable_if<
+    std::is_same<DestinationT, MessageUniquePtr>::value
+  >::type
+  add_shared_impl(MessageSharedPtr shared_msg)
+  {
+    // This should not happen: here a copy is unconditionally made, while the intra-process manager
+    // can decide whether a copy is needed depending on the number and the type of buffers
+
+    MessageUniquePtr unique_msg;
+    MessageDeleter * deleter = std::get_deleter<MessageDeleter, const MessageT>(shared_msg);
+    auto ptr = MessageAllocTraits::allocate(*message_allocator_.get(), 1);
+    MessageAllocTraits::construct(*message_allocator_.get(), ptr, *shared_msg);
+    if (deleter) {
+      unique_msg = MessageUniquePtr(ptr, *deleter);
+    } else {
+      unique_msg = MessageUniquePtr(ptr);
+    }
+
+    buffer_->enqueue(std::move(unique_msg));
+  }
+
+  // MessageSharedPtr to MessageSharedPtr
+  template<typename OriginT>
+  typename std::enable_if<
+    (std::is_same<OriginT, MessageSharedPtr>::value),
+    MessageSharedPtr
+  >::type
+  consume_shared_impl()
+  {
+    return buffer_->dequeue();
+  }
+
+  // MessageUniquePtr to MessageSharedPtr
+  template<typename OriginT>
+  typename std::enable_if<
+    (std::is_same<OriginT, MessageUniquePtr>::value),
+    MessageSharedPtr
+  >::type
+  consume_shared_impl()
+  {
+    // automatic cast from unique ptr to shared ptr
+    return buffer_->dequeue();
+  }
+
+  // MessageSharedPtr to MessageUniquePtr
+  template<typename OriginT>
+  typename std::enable_if<
+    (std::is_same<OriginT, MessageSharedPtr>::value),
+    MessageUniquePtr
+  >::type
+  consume_unique_impl()
+  {
+    MessageSharedPtr buffer_msg = buffer_->dequeue();
+
+    MessageUniquePtr unique_msg;
+    MessageDeleter * deleter = std::get_deleter<MessageDeleter, const MessageT>(buffer_msg);
+    auto ptr = MessageAllocTraits::allocate(*message_allocator_.get(), 1);
+    MessageAllocTraits::construct(*message_allocator_.get(), ptr, *buffer_msg);
+    if (deleter) {
+      unique_msg = MessageUniquePtr(ptr, *deleter);
+    } else {
+      unique_msg = MessageUniquePtr(ptr);
+    }
+
+    return unique_msg;
+  }
+
+  // MessageUniquePtr to MessageUniquePtr
+  template<typename OriginT>
+  typename std::enable_if<
+    (std::is_same<OriginT, MessageUniquePtr>::value),
+    MessageUniquePtr
+  >::type
+  consume_unique_impl()
+  {
+    return buffer_->dequeue();
+  }
+};
+
+}  // namespace intra_process_buffer
+}  // namespace rclcpp
+
+
+#endif  // RCLCPP__BUFFERS__INTRA_PROCESS_BUFFER_HPP_