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Author SHA1 Message Date
Tomoya Fujita
9e2c101ca7 add noexcept to get_parameter methods.
https://github.com/ros2/rclcpp/issues/2047

Signed-off-by: Tomoya Fujita <Tomoya.Fujita@sony.com>
2022-11-28 11:06:17 -08:00
164 changed files with 2906 additions and 10880 deletions

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@@ -8,8 +8,7 @@ rclcpp provides the standard C++ API for interacting with ROS 2.
`#include "rclcpp/rclcpp.hpp"` allows use of the most common elements of the ROS 2 system.
The link to the latest API documentation can be found on the rclcpp package info page, at the [ROS Index](https://index.ros.org/p/rclcpp/).
Visit the [rclcpp API documentation](http://docs.ros2.org/latest/api/rclcpp/) for a complete list of its main components.
### Examples

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@@ -2,75 +2,6 @@
Changelog for package rclcpp
^^^^^^^^^^^^^^^^^^^^^^^^^^^^
20.0.0 (2023-04-13)
-------------------
* applied tracepoints for ring_buffer (`#2091 <https://github.com/ros2/rclcpp/issues/2091>`_)
* Dynamic Subscription (REP-2011 Subset): Stubs for rclcpp (`#2165 <https://github.com/ros2/rclcpp/issues/2165>`_)
* Add type_hash to cpp TopicEndpointInfo (`#2137 <https://github.com/ros2/rclcpp/issues/2137>`_)
* Trigger the intraprocess guard condition with data (`#2164 <https://github.com/ros2/rclcpp/issues/2164>`_)
* Minor grammar fix (`#2149 <https://github.com/ros2/rclcpp/issues/2149>`_)
* Fix unnecessary allocations in executor.cpp (`#2135 <https://github.com/ros2/rclcpp/issues/2135>`_)
* add Logger::get_effective_level(). (`#2141 <https://github.com/ros2/rclcpp/issues/2141>`_)
* Remove deprecated header (`#2139 <https://github.com/ros2/rclcpp/issues/2139>`_)
* Implement matched event (`#2105 <https://github.com/ros2/rclcpp/issues/2105>`_)
* use allocator via init_options argument. (`#2129 <https://github.com/ros2/rclcpp/issues/2129>`_)
* Fixes to silence some clang warnings. (`#2127 <https://github.com/ros2/rclcpp/issues/2127>`_)
* Documentation improvements on the executor (`#2125 <https://github.com/ros2/rclcpp/issues/2125>`_)
* Avoid losing waitable handles while using MultiThreadedExecutor (`#2109 <https://github.com/ros2/rclcpp/issues/2109>`_)
* Hook up the incompatible type event inside of rclcpp (`#2069 <https://github.com/ros2/rclcpp/issues/2069>`_)
* Update all rclcpp packages to C++17. (`#2121 <https://github.com/ros2/rclcpp/issues/2121>`_)
* Fix clang warning: bugprone-use-after-move (`#2116 <https://github.com/ros2/rclcpp/issues/2116>`_)
* Contributors: Barry Xu, Chris Lalancette, Christopher Wecht, Emerson Knapp, Michael Carroll, Tomoya Fujita, Yadu, mauropasse, methylDragon, ymski
19.3.0 (2023-03-01)
-------------------
* Fix memory leak in tracetools::get_symbol() (`#2104 <https://github.com/ros2/rclcpp/issues/2104>`_)
* Service introspection (`#1985 <https://github.com/ros2/rclcpp/issues/1985>`_)
* Allow publishing borrowed messages with intra-process enabled (`#2108 <https://github.com/ros2/rclcpp/issues/2108>`_)
* to fix flaky test about TestTimeSource.callbacks (`#2111 <https://github.com/ros2/rclcpp/issues/2111>`_)
* Contributors: Brian, Chen Lihui, Christophe Bedard, Miguel Company
19.2.0 (2023-02-24)
-------------------
* to create a sublogger while getting child of Logger (`#1717 <https://github.com/ros2/rclcpp/issues/1717>`_)
* Fix documentation of Context class (`#2107 <https://github.com/ros2/rclcpp/issues/2107>`_)
* fixes for rmw callbacks in qos_event class (`#2102 <https://github.com/ros2/rclcpp/issues/2102>`_)
* Contributors: Alberto Soragna, Chen Lihui, Silvio Traversaro
19.1.0 (2023-02-14)
-------------------
* Add support for timers on reset callback (`#1979 <https://github.com/ros2/rclcpp/issues/1979>`_)
* Topic node guard condition in executor (`#2074 <https://github.com/ros2/rclcpp/issues/2074>`_)
* Fix bug on the disorder of calling shutdown callback (`#2097 <https://github.com/ros2/rclcpp/issues/2097>`_)
* Contributors: Barry Xu, Chen Lihui, mauropasse
19.0.0 (2023-01-30)
-------------------
* Add default constructor to NodeInterfaces (`#2094 <https://github.com/ros2/rclcpp/issues/2094>`_)
* Fix clock state cached time to be a copy, not a reference. (`#2092 <https://github.com/ros2/rclcpp/issues/2092>`_)
* Fix -Wmaybe-uninitialized warning (`#2081 <https://github.com/ros2/rclcpp/issues/2081>`_)
* Fix the keep_last warning when using system defaults. (`#2082 <https://github.com/ros2/rclcpp/issues/2082>`_)
* Add in a fix for older compilers. (`#2075 <https://github.com/ros2/rclcpp/issues/2075>`_)
* Contributors: Alexander Hans, Chris Lalancette, Shane Loretz
18.0.0 (2022-12-29)
-------------------
* Implement Unified Node Interface (NodeInterfaces class) (`#2041 <https://github.com/ros2/rclcpp/issues/2041>`_)
* Do not throw exception if trying to dequeue an empty intra-process buffer (`#2061 <https://github.com/ros2/rclcpp/issues/2061>`_)
* Move event callback binding to PublisherBase and SubscriptionBase (`#2066 <https://github.com/ros2/rclcpp/issues/2066>`_)
* Implement validity checks for rclcpp::Clock (`#2040 <https://github.com/ros2/rclcpp/issues/2040>`_)
* Explicitly set callback type (`#2059 <https://github.com/ros2/rclcpp/issues/2059>`_)
* Fix logging macros to build with msvc and cpp20 (`#2063 <https://github.com/ros2/rclcpp/issues/2063>`_)
* Add clock type to node_options (`#1982 <https://github.com/ros2/rclcpp/issues/1982>`_)
* Fix nullptr dereference in prune_requests_older_than (`#2008 <https://github.com/ros2/rclcpp/issues/2008>`_)
* Remove templating on to_rcl_subscription_options (`#2056 <https://github.com/ros2/rclcpp/issues/2056>`_)
* Fix SharedFuture from async_send_request never becoming valid (`#2044 <https://github.com/ros2/rclcpp/issues/2044>`_)
* Add in a warning for a KeepLast depth of 0. (`#2048 <https://github.com/ros2/rclcpp/issues/2048>`_)
* Mark rclcpp::Clock::now() as const (`#2050 <https://github.com/ros2/rclcpp/issues/2050>`_)
* Fix a case that did not throw ParameterUninitializedException (`#2036 <https://github.com/ros2/rclcpp/issues/2036>`_)
* Update maintainers (`#2043 <https://github.com/ros2/rclcpp/issues/2043>`_)
* Contributors: Alberto Soragna, Audrow Nash, Chen Lihui, Chris Lalancette, Jeffery Hsu, Lei Liu, Mateusz Szczygielski, Shane Loretz, andrei, mauropasse, methylDragon
17.1.0 (2022-11-02)
-------------------
* MultiThreadExecutor number of threads is at least 2+ in default. (`#2032 <https://github.com/ros2/rclcpp/issues/2032>`_)

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@@ -25,7 +25,6 @@ find_package(tracetools REQUIRED)
# Default to C++17
if(NOT CMAKE_CXX_STANDARD)
set(CMAKE_CXX_STANDARD 17)
set(CMAKE_CXX_STANDARD_REQUIRED ON)
endif()
if(CMAKE_COMPILER_IS_GNUCXX OR CMAKE_CXX_COMPILER_ID MATCHES "Clang")
# About -Wno-sign-conversion: With Clang, -Wconversion implies -Wsign-conversion. There are a number of
@@ -49,25 +48,16 @@ set(${PROJECT_NAME}_SRCS
src/rclcpp/detail/rmw_implementation_specific_subscription_payload.cpp
src/rclcpp/detail/utilities.cpp
src/rclcpp/duration.cpp
src/rclcpp/dynamic_typesupport/dynamic_message.cpp
src/rclcpp/dynamic_typesupport/dynamic_message_type.cpp
src/rclcpp/dynamic_typesupport/dynamic_message_type_builder.cpp
src/rclcpp/dynamic_typesupport/dynamic_message_type_support.cpp
src/rclcpp/dynamic_typesupport/dynamic_serialization_support.cpp
src/rclcpp/event.cpp
src/rclcpp/exceptions/exceptions.cpp
src/rclcpp/executable_list.cpp
src/rclcpp/executor.cpp
src/rclcpp/executors.cpp
src/rclcpp/executors/executor_entities_collection.cpp
src/rclcpp/executors/executor_entities_collector.cpp
src/rclcpp/executors/executor_notify_waitable.cpp
src/rclcpp/executors/multi_threaded_executor.cpp
src/rclcpp/executors/single_threaded_executor.cpp
src/rclcpp/executors/static_executor_entities_collector.cpp
src/rclcpp/executors/static_single_threaded_executor.cpp
src/rclcpp/expand_topic_or_service_name.cpp
src/rclcpp/experimental/executors/events_executor/events_executor.cpp
src/rclcpp/experimental/timers_manager.cpp
src/rclcpp/future_return_code.cpp
src/rclcpp/generic_publisher.cpp
src/rclcpp/generic_subscription.cpp
@@ -102,7 +92,7 @@ set(${PROJECT_NAME}_SRCS
src/rclcpp/parameter_value.cpp
src/rclcpp/publisher_base.cpp
src/rclcpp/qos.cpp
src/rclcpp/event_handler.cpp
src/rclcpp/qos_event.cpp
src/rclcpp/qos_overriding_options.cpp
src/rclcpp/serialization.cpp
src/rclcpp/serialized_message.cpp

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@@ -191,14 +191,10 @@ public:
#ifndef TRACETOOLS_DISABLED
std::visit(
[this](auto && arg) {
if (TRACEPOINT_ENABLED(rclcpp_callback_register)) {
char * symbol = tracetools::get_symbol(arg);
DO_TRACEPOINT(
rclcpp_callback_register,
static_cast<const void *>(this),
symbol);
std::free(symbol);
}
TRACEPOINT(
rclcpp_callback_register,
static_cast<const void *>(this),
tracetools::get_symbol(arg));
}, callback_);
#endif // TRACETOOLS_DISABLED
}

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@@ -965,14 +965,10 @@ public:
#ifndef TRACETOOLS_DISABLED
std::visit(
[this](auto && callback) {
if (TRACEPOINT_ENABLED(rclcpp_callback_register)) {
char * symbol = tracetools::get_symbol(callback);
DO_TRACEPOINT(
rclcpp_callback_register,
static_cast<const void *>(this),
symbol);
std::free(symbol);
}
TRACEPOINT(
rclcpp_callback_register,
static_cast<const void *>(this),
tracetools::get_symbol(callback));
}, callback_variant_);
#endif // TRACETOOLS_DISABLED
}

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@@ -93,54 +93,11 @@ public:
* determines whether a callback group is automatically added to an executor
* with the node with which it is associated.
*/
[[deprecated("Use CallbackGroup constructor with context function argument")]]
RCLCPP_PUBLIC
explicit CallbackGroup(
CallbackGroupType group_type,
bool automatically_add_to_executor_with_node = true);
/// Constructor for CallbackGroup.
/**
* Callback Groups have a type, either 'Mutually Exclusive' or 'Reentrant'
* and when creating one the type must be specified.
*
* Callbacks in Reentrant Callback Groups must be able to:
* - run at the same time as themselves (reentrant)
* - run at the same time as other callbacks in their group
* - run at the same time as other callbacks in other groups
*
* Callbacks in Mutually Exclusive Callback Groups:
* - will not be run multiple times simultaneously (non-reentrant)
* - will not be run at the same time as other callbacks in their group
* - but must run at the same time as callbacks in other groups
*
* Additionally, callback groups have a property which determines whether or
* not they are added to an executor with their associated node automatically.
* When creating a callback group the automatically_add_to_executor_with_node
* argument determines this behavior, and if true it will cause the newly
* created callback group to be added to an executor with the node when the
* Executor::add_node method is used.
* If false, this callback group will not be added automatically and would
* have to be added to an executor manually using the
* Executor::add_callback_group method.
*
* Whether the node was added to the executor before creating the callback
* group, or after, is irrelevant; the callback group will be automatically
* added to the executor in either case.
*
* \param[in] group_type The type of the callback group.
* \param[in] get_node_context Lambda to retrieve the node context when
* checking that the creating node is valid and using the guard condition.
* \param[in] automatically_add_to_executor_with_node A boolean that
* determines whether a callback group is automatically added to an executor
* with the node with which it is associated.
*/
RCLCPP_PUBLIC
explicit CallbackGroup(
CallbackGroupType group_type,
std::function<rclcpp::Context::SharedPtr(void)> get_node_context,
bool automatically_add_to_executor_with_node = true);
/// Default destructor.
RCLCPP_PUBLIC
~CallbackGroup();
@@ -180,42 +137,14 @@ public:
return _find_ptrs_if_impl<rclcpp::Waitable, Function>(func, waitable_ptrs_);
}
/// Get the total number of entities in this callback group.
/**
* \return the number of entities in the callback group.
*/
RCLCPP_PUBLIC
size_t size() const;
/// Return a reference to the 'can be taken' atomic boolean.
/**
* The resulting bool will be true in the case that no executor is currently
* using an executable entity from this group.
* The resulting bool will be false in the case that an executor is currently
* using an executable entity from this group, and the group policy doesn't
* allow a second take (eg mutual exclusion)
* \return a reference to the flag
*/
RCLCPP_PUBLIC
std::atomic_bool &
can_be_taken_from();
/// Get the group type.
/**
* \return the group type
*/
RCLCPP_PUBLIC
const CallbackGroupType &
type() const;
/// Collect all of the entity pointers contained in this callback group.
/**
* \param[in] sub_func Function to execute for each subscription
* \param[in] service_func Function to execute for each service
* \param[in] client_func Function to execute for each client
* \param[in] timer_func Function to execute for each timer
* \param[in] waitable_fuinc Function to execute for each waitable
*/
RCLCPP_PUBLIC
void collect_all_ptrs(
std::function<void(const rclcpp::SubscriptionBase::SharedPtr &)> sub_func,
@@ -249,24 +178,11 @@ public:
bool
automatically_add_to_executor_with_node() const;
/// Retrieve the guard condition used to signal changes to this callback group.
/**
* \param[in] context_ptr context to use when creating the guard condition
* \return guard condition if it is valid, otherwise nullptr.
*/
[[deprecated("Use get_notify_guard_condition() without arguments")]]
/// Defer creating the notify guard condition and return it.
RCLCPP_PUBLIC
rclcpp::GuardCondition::SharedPtr
get_notify_guard_condition(const rclcpp::Context::SharedPtr context_ptr);
/// Retrieve the guard condition used to signal changes to this callback group.
/**
* \return guard condition if it is valid, otherwise nullptr.
*/
RCLCPP_PUBLIC
rclcpp::GuardCondition::SharedPtr
get_notify_guard_condition();
/// Trigger the notify guard condition.
RCLCPP_PUBLIC
void
@@ -318,8 +234,6 @@ protected:
std::shared_ptr<rclcpp::GuardCondition> notify_guard_condition_ = nullptr;
std::recursive_mutex notify_guard_condition_mutex_;
std::function<rclcpp::Context::SharedPtr(void)> get_context_;
private:
template<typename TypeT, typename Function>
typename TypeT::SharedPtr _find_ptrs_if_impl(

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@@ -16,15 +16,14 @@
#define RCLCPP__CLIENT_HPP_
#include <atomic>
#include <functional>
#include <future>
#include <unordered_map>
#include <memory>
#include <mutex>
#include <optional> // NOLINT, cpplint doesn't think this is a cpp std header
#include <sstream>
#include <string>
#include <tuple>
#include <unordered_map>
#include <utility>
#include <variant> // NOLINT
#include <vector>
@@ -32,10 +31,8 @@
#include "rcl/client.h"
#include "rcl/error_handling.h"
#include "rcl/event_callback.h"
#include "rcl/service_introspection.h"
#include "rcl/wait.h"
#include "rclcpp/clock.hpp"
#include "rclcpp/detail/cpp_callback_trampoline.hpp"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/expand_topic_or_service_name.hpp"
@@ -315,7 +312,7 @@ public:
// This two-step setting, prevents a gap where the old std::function has
// been replaced but the middleware hasn't been told about the new one yet.
set_on_new_response_callback(
rclcpp::detail::cpp_callback_trampoline<decltype(new_callback), const void *, size_t>,
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&new_callback));
// Store the std::function to keep it in scope, also overwrites the existing one.
@@ -323,8 +320,7 @@ public:
// Set it again, now using the permanent storage.
set_on_new_response_callback(
rclcpp::detail::cpp_callback_trampoline<
decltype(on_new_response_callback_), const void *, size_t>,
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&on_new_response_callback_));
}
@@ -470,13 +466,15 @@ public:
rclcpp::node_interfaces::NodeGraphInterface::SharedPtr node_graph,
const std::string & service_name,
rcl_client_options_t & client_options)
: ClientBase(node_base, node_graph),
srv_type_support_handle_(rosidl_typesupport_cpp::get_service_type_support_handle<ServiceT>())
: ClientBase(node_base, node_graph)
{
using rosidl_typesupport_cpp::get_service_type_support_handle;
auto service_type_support_handle =
get_service_type_support_handle<ServiceT>();
rcl_ret_t ret = rcl_client_init(
this->get_client_handle().get(),
this->get_rcl_node_handle(),
srv_type_support_handle_,
service_type_support_handle,
service_name.c_str(),
&client_options);
if (ret != RCL_RET_OK) {
@@ -771,9 +769,7 @@ public:
auto old_size = pending_requests_.size();
for (auto it = pending_requests_.begin(), last = pending_requests_.end(); it != last; ) {
if (it->second.first < time_point) {
if (pruned_requests) {
pruned_requests->push_back(it->first);
}
pruned_requests->push_back(it->first);
it = pending_requests_.erase(it);
} else {
++it;
@@ -782,33 +778,6 @@ public:
return old_size - pending_requests_.size();
}
/// Configure client introspection.
/**
* \param[in] clock clock to use to generate introspection timestamps
* \param[in] qos_service_event_pub QoS settings to use when creating the introspection publisher
* \param[in] introspection_state the state to set introspection to
*/
void
configure_introspection(
Clock::SharedPtr clock, const QoS & qos_service_event_pub,
rcl_service_introspection_state_t introspection_state)
{
rcl_publisher_options_t pub_opts = rcl_publisher_get_default_options();
pub_opts.qos = qos_service_event_pub.get_rmw_qos_profile();
rcl_ret_t ret = rcl_client_configure_service_introspection(
client_handle_.get(),
node_handle_.get(),
clock->get_clock_handle(),
srv_type_support_handle_,
pub_opts,
introspection_state);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "failed to configure client introspection");
}
}
protected:
using CallbackTypeValueVariant = std::tuple<CallbackType, SharedFuture, Promise>;
using CallbackWithRequestTypeValueVariant = std::tuple<
@@ -823,14 +792,16 @@ protected:
async_send_request_impl(const Request & request, CallbackInfoVariant value)
{
int64_t sequence_number;
std::lock_guard<std::mutex> lock(pending_requests_mutex_);
rcl_ret_t ret = rcl_send_request(get_client_handle().get(), &request, &sequence_number);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "failed to send request");
}
pending_requests_.try_emplace(
sequence_number,
std::make_pair(std::chrono::system_clock::now(), std::move(value)));
{
std::lock_guard<std::mutex> lock(pending_requests_mutex_);
pending_requests_.try_emplace(
sequence_number,
std::make_pair(std::chrono::system_clock::now(), std::move(value)));
}
return sequence_number;
}
@@ -859,9 +830,6 @@ protected:
CallbackInfoVariant>>
pending_requests_;
std::mutex pending_requests_mutex_;
private:
const rosidl_service_type_support_t * srv_type_support_handle_;
};
} // namespace rclcpp

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@@ -137,51 +137,6 @@ public:
Duration rel_time,
Context::SharedPtr context = contexts::get_global_default_context());
/**
* Check if the clock is started.
*
* A started clock is a clock that reflects non-zero time.
* Typically a clock will be unstarted if it is using RCL_ROS_TIME with ROS time and
* nothing has been published on the clock topic yet.
*
* \return true if clock is started
* \throws std::runtime_error if the clock is not rcl_clock_valid
*/
RCLCPP_PUBLIC
bool
started();
/**
* Wait until clock to start.
*
* \rclcpp::Clock::started
* \param context the context to wait in
* \return true if clock was already started or became started
* \throws std::runtime_error if the context is invalid or clock is not rcl_clock_valid
*/
RCLCPP_PUBLIC
bool
wait_until_started(Context::SharedPtr context = contexts::get_global_default_context());
/**
* Wait for clock to start, with timeout.
*
* The timeout is waited in steady time.
*
* \rclcpp::Clock::started
* \param timeout the maximum time to wait for.
* \param context the context to wait in.
* \param wait_tick_ns the time to wait between each iteration of the wait loop (in nanoseconds).
* \return true if clock was or became valid
* \throws std::runtime_error if the context is invalid or clock is not rcl_clock_valid
*/
RCLCPP_PUBLIC
bool
wait_until_started(
const rclcpp::Duration & timeout,
Context::SharedPtr context = contexts::get_global_default_context(),
const rclcpp::Duration & wait_tick_ns = rclcpp::Duration(0, static_cast<uint32_t>(1e7)));
/**
* Returns the clock of the type `RCL_ROS_TIME` is active.
*

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@@ -65,11 +65,8 @@ using PreShutdownCallbackHandle = ShutdownCallbackHandle;
/// Context which encapsulates shared state between nodes and other similar entities.
/**
* A context also represents the lifecycle between init and shutdown of rclcpp.
* Nodes may be attached to a particular context by passing to the rclcpp::Node
* constructor a rclcpp::NodeOptions instance in which the Context is set via
* rclcpp::NodeOptions::context.
* Nodes will be automatically removed from the context when destructed.
* Contexts may be shutdown by calling rclcpp::shutdown.
* It is often used in conjunction with rclcpp::init, or rclcpp::init_local,
* and rclcpp::shutdown.
*/
class Context : public std::enable_shared_from_this<Context>
{
@@ -379,10 +376,10 @@ private:
// attempt to acquire another sub context.
std::recursive_mutex sub_contexts_mutex_;
std::vector<std::shared_ptr<OnShutdownCallback>> on_shutdown_callbacks_;
std::unordered_set<std::shared_ptr<OnShutdownCallback>> on_shutdown_callbacks_;
mutable std::mutex on_shutdown_callbacks_mutex_;
std::vector<std::shared_ptr<PreShutdownCallback>> pre_shutdown_callbacks_;
std::unordered_set<std::shared_ptr<PreShutdownCallback>> pre_shutdown_callbacks_;
mutable std::mutex pre_shutdown_callbacks_mutex_;
/// Condition variable for timed sleep (see sleep_for).
@@ -401,22 +398,20 @@ private:
using ShutdownCallback = ShutdownCallbackHandle::ShutdownCallbackType;
template<ShutdownType shutdown_type>
RCLCPP_LOCAL
ShutdownCallbackHandle
add_shutdown_callback(
ShutdownType shutdown_type,
ShutdownCallback callback);
template<ShutdownType shutdown_type>
RCLCPP_LOCAL
bool
remove_shutdown_callback(
ShutdownType shutdown_type,
const ShutdownCallbackHandle & callback_handle);
template<ShutdownType shutdown_type>
RCLCPP_LOCAL
std::vector<rclcpp::Context::ShutdownCallback>
get_shutdown_callback() const;
get_shutdown_callback(ShutdownType shutdown_type) const;
};
/// Return a copy of the list of context shared pointers.

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@@ -41,7 +41,6 @@ namespace detail
* so no exceptions should be thrown at this point, and doing so results in
* undefined behavior.
*
* \tparam UserDataRealT Declared type of the passed function
* \tparam UserDataT Deduced type based on what is passed for user data,
* usually this type is either `void *` or `const void *`.
* \tparam Args the arguments being passed to the callback
@@ -51,7 +50,6 @@ namespace detail
* \returns whatever the callback returns, if anything
*/
template<
typename UserDataRealT,
typename UserDataT,
typename ... Args,
typename ReturnT = void
@@ -59,7 +57,7 @@ template<
ReturnT
cpp_callback_trampoline(UserDataT user_data, Args ... args) noexcept
{
auto & actual_callback = *static_cast<const UserDataRealT *>(user_data);
auto & actual_callback = *reinterpret_cast<const std::function<ReturnT(Args...)> *>(user_data);
return actual_callback(args ...);
}

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@@ -1,47 +0,0 @@
// Copyright 2022 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__DETAIL__TEMPLATE_CONTAINS_HPP_
#define RCLCPP__DETAIL__TEMPLATE_CONTAINS_HPP_
#include <type_traits>
namespace rclcpp
{
namespace detail
{
/// Template meta-function that checks if a given T is contained in the list Us.
template<typename T, typename ... Us>
struct template_contains;
template<typename ... Args>
inline constexpr bool template_contains_v = template_contains<Args ...>::value;
template<typename T, typename NextT, typename ... Us>
struct template_contains<T, NextT, Us ...>
{
enum { value = (std::is_same_v<T, NextT>|| template_contains_v<T, Us ...>)};
};
template<typename T>
struct template_contains<T>
{
enum { value = false };
};
} // namespace detail
} // namespace rclcpp
#endif // RCLCPP__DETAIL__TEMPLATE_CONTAINS_HPP_

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@@ -1,49 +0,0 @@
// Copyright 2022 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__DETAIL__TEMPLATE_UNIQUE_HPP_
#define RCLCPP__DETAIL__TEMPLATE_UNIQUE_HPP_
#include <type_traits>
#include "rclcpp/detail/template_contains.hpp"
namespace rclcpp
{
namespace detail
{
/// Template meta-function that checks if a given list Ts contains unique types.
template<typename ... Ts>
struct template_unique;
template<typename ... Args>
inline constexpr bool template_unique_v = template_unique<Args ...>::value;
template<typename NextT, typename ... Ts>
struct template_unique<NextT, Ts ...>
{
enum { value = !template_contains_v<NextT, Ts ...>&& template_unique_v<Ts ...>};
};
template<typename T>
struct template_unique<T>
{
enum { value = true };
};
} // namespace detail
} // namespace rclcpp
#endif // RCLCPP__DETAIL__TEMPLATE_UNIQUE_HPP_

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@@ -1,70 +0,0 @@
// Copyright 2023 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__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_HPP_
#define RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_HPP_
#include <rcl/allocator.h>
#include <rcl/types.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
namespace dynamic_typesupport
{
/// Utility wrapper class for rosidl_dynamic_typesupport_dynamic_data_t
/// STUBBED OUT
class DynamicMessage : public std::enable_shared_from_this<DynamicMessage>
{
public:
RCLCPP_SMART_PTR_ALIASES_ONLY(DynamicMessage)
RCLCPP_PUBLIC
virtual ~DynamicMessage();
protected:
// NOTE(methylDragon):
// This is just here to extend the lifetime of the serialization support
// It isn't actually used by the builder since the builder should compose its own support
//
// ... Though ideally it should be the exact same support as the one stored in the
// DynamicSerializationSupport
DynamicSerializationSupport::SharedPtr serialization_support_;
rosidl_dynamic_typesupport_dynamic_data_t rosidl_dynamic_data_;
bool is_loaned_;
// Used for returning the loaned value, and lifetime management
DynamicMessage::SharedPtr parent_data_;
private:
RCLCPP_DISABLE_COPY(DynamicMessage)
RCLCPP_PUBLIC
DynamicMessage();
};
} // namespace dynamic_typesupport
} // namespace rclcpp
#endif // RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_HPP_

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@@ -1,64 +0,0 @@
// Copyright 2023 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__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_HPP_
#define RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_HPP_
#include <rcl/allocator.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
namespace dynamic_typesupport
{
/// Utility wrapper class for `rosidl_dynamic_typesupport_dynamic_type_t`
/// STUBBED OUT
class DynamicMessageType : public std::enable_shared_from_this<DynamicMessageType>
{
public:
RCLCPP_SMART_PTR_ALIASES_ONLY(DynamicMessageType)
RCLCPP_PUBLIC
virtual ~DynamicMessageType();
protected:
// NOTE(methylDragon):
// This is just here to extend the lifetime of the serialization support
// It isn't actually used by the builder since the builder should compose its own support
//
// ... Though ideally it should be the exact same support as the one stored in the
// `DynamicSerializationSupport`
DynamicSerializationSupport::SharedPtr serialization_support_;
rosidl_dynamic_typesupport_dynamic_type_t rosidl_dynamic_type_;
private:
RCLCPP_DISABLE_COPY(DynamicMessageType)
RCLCPP_PUBLIC
DynamicMessageType();
};
} // namespace dynamic_typesupport
} // namespace rclcpp
#endif // RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_HPP_

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@@ -1,65 +0,0 @@
// Copyright 2023 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__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_BUILDER_HPP_
#define RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_BUILDER_HPP_
#include <rcl/allocator.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
namespace dynamic_typesupport
{
/// Utility wrapper class for `rosidl_dynamic_typesupport_dynamic_type_builder_t *`
/// STUBBED OUT
class DynamicMessageTypeBuilder : public std::enable_shared_from_this<DynamicMessageTypeBuilder>
{
public:
RCLCPP_SMART_PTR_ALIASES_ONLY(DynamicMessageTypeBuilder)
RCLCPP_PUBLIC
virtual ~DynamicMessageTypeBuilder();
protected:
// NOTE(methylDragon):
// This is just here to extend the lifetime of the serialization support
// It isn't actually used by the builder since the builder should compose its own support
//
// ... Though ideally it should be the exact same support as the one stored in the
// `DynamicSerializationSupport`
DynamicSerializationSupport::SharedPtr serialization_support_;
rosidl_dynamic_typesupport_dynamic_type_builder_t rosidl_dynamic_type_builder_;
private:
RCLCPP_DISABLE_COPY(DynamicMessageTypeBuilder)
RCLCPP_PUBLIC
DynamicMessageTypeBuilder();
};
} // namespace dynamic_typesupport
} // namespace rclcpp
#endif // RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_BUILDER_HPP_

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@@ -1,67 +0,0 @@
// Copyright 2023 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__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_SUPPORT_HPP_
#define RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_SUPPORT_HPP_
#include <rcl/allocator.h>
#include <rosidl_dynamic_typesupport/dynamic_message_type_support_struct.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <rosidl_runtime_c/message_type_support_struct.h>
#include <rosidl_runtime_c/type_description/type_description__struct.h>
#include <memory>
#include <string>
#include "rclcpp/dynamic_typesupport/dynamic_message.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
namespace dynamic_typesupport
{
/// Utility wrapper class for `rosidl_message_type_support_t` containing managed
/// STUBBED OUT
class DynamicMessageTypeSupport : public std::enable_shared_from_this<DynamicMessageTypeSupport>
{
public:
RCLCPP_SMART_PTR_ALIASES_ONLY(DynamicMessageTypeSupport)
RCLCPP_PUBLIC
virtual ~DynamicMessageTypeSupport();
protected:
DynamicSerializationSupport::SharedPtr serialization_support_;
DynamicMessageType::SharedPtr dynamic_message_type_;
DynamicMessage::SharedPtr dynamic_message_;
rosidl_message_type_support_t rosidl_message_type_support_;
private:
RCLCPP_DISABLE_COPY(DynamicMessageTypeSupport)
RCLCPP_PUBLIC
DynamicMessageTypeSupport();
};
} // namespace dynamic_typesupport
} // namespace rclcpp
#endif // RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_MESSAGE_TYPE_SUPPORT_HPP_

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@@ -1,60 +0,0 @@
// Copyright 2023 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__DYNAMIC_TYPESUPPORT__DYNAMIC_SERIALIZATION_SUPPORT_HPP_
#define RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_SERIALIZATION_SUPPORT_HPP_
#include <rcl/allocator.h>
#include <rosidl_dynamic_typesupport/api/serialization_support.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
namespace dynamic_typesupport
{
/// Utility wrapper class for rosidl_dynamic_typesupport_serialization_support_t
class DynamicSerializationSupport : public std::enable_shared_from_this<DynamicSerializationSupport>
{
public:
RCLCPP_SMART_PTR_ALIASES_ONLY(DynamicSerializationSupport)
RCLCPP_PUBLIC
explicit DynamicSerializationSupport(rcl_allocator_t allocator = rcl_get_default_allocator());
RCLCPP_PUBLIC
DynamicSerializationSupport(
const std::string & serialization_library_name,
rcl_allocator_t allocator = rcl_get_default_allocator());
RCLCPP_PUBLIC
virtual ~DynamicSerializationSupport();
protected:
rosidl_dynamic_typesupport_serialization_support_t rosidl_serialization_support_;
private:
RCLCPP_DISABLE_COPY(DynamicSerializationSupport)
};
} // namespace dynamic_typesupport
} // namespace rclcpp
#endif // RCLCPP__DYNAMIC_TYPESUPPORT__DYNAMIC_SERIALIZATION_SUPPORT_HPP_

View File

@@ -1,311 +0,0 @@
// 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__EVENT_HANDLER_HPP_
#define RCLCPP__EVENT_HANDLER_HPP_
#include <functional>
#include <memory>
#include <mutex>
#include <stdexcept>
#include <string>
#include "rcl/error_handling.h"
#include "rcl/event_callback.h"
#include "rmw/impl/cpp/demangle.hpp"
#include "rmw/incompatible_qos_events_statuses.h"
#include "rmw/events_statuses/incompatible_type.h"
#include "rcutils/logging_macros.h"
#include "rclcpp/detail/cpp_callback_trampoline.hpp"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/function_traits.hpp"
#include "rclcpp/logging.hpp"
#include "rclcpp/waitable.hpp"
namespace rclcpp
{
using QOSDeadlineRequestedInfo = rmw_requested_deadline_missed_status_t;
using QOSDeadlineOfferedInfo = rmw_offered_deadline_missed_status_t;
using QOSLivelinessChangedInfo = rmw_liveliness_changed_status_t;
using QOSLivelinessLostInfo = rmw_liveliness_lost_status_t;
using QOSMessageLostInfo = rmw_message_lost_status_t;
using QOSOfferedIncompatibleQoSInfo = rmw_offered_qos_incompatible_event_status_t;
using QOSRequestedIncompatibleQoSInfo = rmw_requested_qos_incompatible_event_status_t;
using IncompatibleTypeInfo = rmw_incompatible_type_status_t;
using MatchedInfo = rmw_matched_status_t;
using QOSDeadlineRequestedCallbackType = std::function<void (QOSDeadlineRequestedInfo &)>;
using QOSDeadlineOfferedCallbackType = std::function<void (QOSDeadlineOfferedInfo &)>;
using QOSLivelinessChangedCallbackType = std::function<void (QOSLivelinessChangedInfo &)>;
using QOSLivelinessLostCallbackType = std::function<void (QOSLivelinessLostInfo &)>;
using QOSMessageLostCallbackType = std::function<void (QOSMessageLostInfo &)>;
using QOSOfferedIncompatibleQoSCallbackType = std::function<void (QOSOfferedIncompatibleQoSInfo &)>;
using QOSRequestedIncompatibleQoSCallbackType =
std::function<void (QOSRequestedIncompatibleQoSInfo &)>;
using IncompatibleTypeCallbackType = std::function<void (IncompatibleTypeInfo &)>;
using PublisherMatchedCallbackType = std::function<void (MatchedInfo &)>;
using SubscriptionMatchedCallbackType = std::function<void (MatchedInfo &)>;
/// Contains callbacks for various types of events a Publisher can receive from the middleware.
struct PublisherEventCallbacks
{
QOSDeadlineOfferedCallbackType deadline_callback;
QOSLivelinessLostCallbackType liveliness_callback;
QOSOfferedIncompatibleQoSCallbackType incompatible_qos_callback;
IncompatibleTypeCallbackType incompatible_type_callback;
PublisherMatchedCallbackType matched_callback;
};
/// Contains callbacks for non-message events that a Subscription can receive from the middleware.
struct SubscriptionEventCallbacks
{
QOSDeadlineRequestedCallbackType deadline_callback;
QOSLivelinessChangedCallbackType liveliness_callback;
QOSRequestedIncompatibleQoSCallbackType incompatible_qos_callback;
QOSMessageLostCallbackType message_lost_callback;
IncompatibleTypeCallbackType incompatible_type_callback;
SubscriptionMatchedCallbackType matched_callback;
};
class UnsupportedEventTypeException : public exceptions::RCLErrorBase, public std::runtime_error
{
public:
RCLCPP_PUBLIC
UnsupportedEventTypeException(
rcl_ret_t ret,
const rcl_error_state_t * error_state,
const std::string & prefix);
RCLCPP_PUBLIC
UnsupportedEventTypeException(
const exceptions::RCLErrorBase & base_exc,
const std::string & prefix);
};
class EventHandlerBase : public Waitable
{
public:
enum class EntityType : std::size_t
{
Event,
};
RCLCPP_PUBLIC
virtual ~EventHandlerBase();
/// Get the number of ready events
RCLCPP_PUBLIC
size_t
get_number_of_ready_events() override;
/// Add the Waitable to a wait set.
RCLCPP_PUBLIC
void
add_to_wait_set(rcl_wait_set_t * wait_set) override;
/// Check if the Waitable is ready.
RCLCPP_PUBLIC
bool
is_ready(rcl_wait_set_t * wait_set) override;
/// Set a callback to be called when each new event instance occurs.
/**
* The callback receives a size_t which is the number of events that occurred
* since the last time this callback was called.
* Normally this is 1, but can be > 1 if events occurred before any
* callback was set.
*
* The callback also receives an int identifier argument.
* This is needed because a Waitable may be composed of several distinct entities,
* such as subscriptions, services, etc.
* The application should provide a generic callback function that will be then
* forwarded by the waitable to all of its entities.
* Before forwarding, a different value for the identifier argument will be
* bond to the function.
* This implies that the provided callback can use the identifier to behave
* differently depending on which entity triggered the waitable to become ready.
*
* Since this callback is called from the middleware, you should aim to make
* it fast and not blocking.
* If you need to do a lot of work or wait for some other event, you should
* spin it off to another thread, otherwise you risk blocking the middleware.
*
* Calling it again will clear any previously set callback.
*
* An exception will be thrown if the callback is not callable.
*
* This function is thread-safe.
*
* If you want more information available in the callback, like the qos event
* or other information, you may use a lambda with captures or std::bind.
*
* \sa rmw_event_set_callback
* \sa rcl_event_set_callback
*
* \param[in] callback functor to be called when a new event occurs
*/
void
set_on_ready_callback(std::function<void(size_t, int)> callback) override
{
if (!callback) {
throw std::invalid_argument(
"The callback passed to set_on_ready_callback "
"is not callable.");
}
// Note: we bind the int identifier argument to this waitable's entity types
auto new_callback =
[callback, this](size_t number_of_events) {
try {
callback(number_of_events, static_cast<int>(EntityType::Event));
} catch (const std::exception & exception) {
RCLCPP_ERROR_STREAM(
// TODO(wjwwood): get this class access to the node logger it is associated with
rclcpp::get_logger("rclcpp"),
"rclcpp::EventHandlerBase@" << this <<
" caught " << rmw::impl::cpp::demangle(exception) <<
" exception in user-provided callback for the 'on ready' callback: " <<
exception.what());
} catch (...) {
RCLCPP_ERROR_STREAM(
rclcpp::get_logger("rclcpp"),
"rclcpp::EventHandlerBase@" << this <<
" caught unhandled exception in user-provided callback " <<
"for the 'on ready' callback");
}
};
std::lock_guard<std::recursive_mutex> lock(callback_mutex_);
// Set it temporarily to the new callback, while we replace the old one.
// This two-step setting, prevents a gap where the old std::function has
// been replaced but the middleware hasn't been told about the new one yet.
set_on_new_event_callback(
rclcpp::detail::cpp_callback_trampoline<decltype(new_callback), const void *, size_t>,
static_cast<const void *>(&new_callback));
// Store the std::function to keep it in scope, also overwrites the existing one.
on_new_event_callback_ = new_callback;
// Set it again, now using the permanent storage.
set_on_new_event_callback(
rclcpp::detail::cpp_callback_trampoline<
decltype(on_new_event_callback_), const void *, size_t>,
static_cast<const void *>(&on_new_event_callback_));
}
/// Unset the callback registered for new events, if any.
void
clear_on_ready_callback() override
{
std::lock_guard<std::recursive_mutex> lock(callback_mutex_);
if (on_new_event_callback_) {
set_on_new_event_callback(nullptr, nullptr);
on_new_event_callback_ = nullptr;
}
}
protected:
RCLCPP_PUBLIC
void
set_on_new_event_callback(rcl_event_callback_t callback, const void * user_data);
std::recursive_mutex callback_mutex_;
std::function<void(size_t)> on_new_event_callback_{nullptr};
rcl_event_t event_handle_;
size_t wait_set_event_index_;
};
using QOSEventHandlerBase [[deprecated("Use rclcpp::EventHandlerBase")]] = EventHandlerBase;
template<typename EventCallbackT, typename ParentHandleT>
class EventHandler : public EventHandlerBase
{
public:
template<typename InitFuncT, typename EventTypeEnum>
EventHandler(
const EventCallbackT & callback,
InitFuncT init_func,
ParentHandleT parent_handle,
EventTypeEnum event_type)
: parent_handle_(parent_handle), event_callback_(callback)
{
event_handle_ = rcl_get_zero_initialized_event();
rcl_ret_t ret = init_func(&event_handle_, parent_handle.get(), event_type);
if (ret != RCL_RET_OK) {
if (ret == RCL_RET_UNSUPPORTED) {
UnsupportedEventTypeException exc(ret, rcl_get_error_state(), "Failed to initialize event");
rcl_reset_error();
throw exc;
} else {
rclcpp::exceptions::throw_from_rcl_error(ret, "Failed to initialize event");
}
}
}
/// Take data so that the callback cannot be scheduled again
std::shared_ptr<void>
take_data() override
{
EventCallbackInfoT callback_info;
rcl_ret_t ret = rcl_take_event(&event_handle_, &callback_info);
if (ret != RCL_RET_OK) {
RCUTILS_LOG_ERROR_NAMED(
"rclcpp",
"Couldn't take event info: %s", rcl_get_error_string().str);
return nullptr;
}
return std::static_pointer_cast<void>(std::make_shared<EventCallbackInfoT>(callback_info));
}
std::shared_ptr<void>
take_data_by_entity_id(size_t id) override
{
(void)id;
return take_data();
}
/// Execute any entities of the Waitable that are ready.
void
execute(std::shared_ptr<void> & data) override
{
if (!data) {
throw std::runtime_error("'data' is empty");
}
auto callback_ptr = std::static_pointer_cast<EventCallbackInfoT>(data);
event_callback_(*callback_ptr);
callback_ptr.reset();
}
private:
using EventCallbackInfoT = typename std::remove_reference<typename
rclcpp::function_traits::function_traits<EventCallbackT>::template argument_type<0>>::type;
ParentHandleT parent_handle_;
EventCallbackT event_callback_;
};
template<typename EventCallbackT, typename ParentHandleT>
using QOSEventHandler [[deprecated("Use rclcpp::EventHandler")]] = EventHandler<EventCallbackT,
ParentHandleT>;
} // namespace rclcpp
#endif // RCLCPP__EVENT_HANDLER_HPP_

View File

@@ -19,7 +19,6 @@
#include <cassert>
#include <chrono>
#include <cstdlib>
#include <deque>
#include <iostream>
#include <list>
#include <map>
@@ -30,27 +29,28 @@
#include "rcl/guard_condition.h"
#include "rcl/wait.h"
#include "rclcpp/executors/executor_notify_waitable.hpp"
#include "rcpputils/scope_exit.hpp"
#include "rclcpp/context.hpp"
#include "rclcpp/contexts/default_context.hpp"
#include "rclcpp/guard_condition.hpp"
#include "rclcpp/executor_options.hpp"
#include "rclcpp/executors/executor_entities_collection.hpp"
#include "rclcpp/executors/executor_entities_collector.hpp"
#include "rclcpp/future_return_code.hpp"
#include "rclcpp/memory_strategies.hpp"
#include "rclcpp/memory_strategy.hpp"
#include "rclcpp/node_interfaces/node_base_interface.hpp"
#include "rclcpp/utilities.hpp"
#include "rclcpp/visibility_control.hpp"
#include "rclcpp/wait_set.hpp"
namespace rclcpp
{
typedef std::map<rclcpp::CallbackGroup::WeakPtr,
rclcpp::node_interfaces::NodeBaseInterface::WeakPtr,
std::owner_less<rclcpp::CallbackGroup::WeakPtr>> WeakCallbackGroupsToNodesMap;
// Forward declaration is used in convenience method signature.
class Node;
class ExecutorImplementation;
/// Coordinate the order and timing of available communication tasks.
/**
@@ -315,16 +315,6 @@ public:
virtual void
spin_all(std::chrono::nanoseconds max_duration);
/// Collect work once and execute the next available work, optionally within a duration.
/**
* This function can be overridden. The default implementation is suitable for
* a single-thread model of execution.
* Adding subscriptions, timers, services, etc. with blocking callbacks will cause this function
* to block (which may have unintended consequences).
* \param[in] timeout The maximum amount of time to spend waiting for work.
* `-1` is potentially block forever waiting for work.
*/
RCLCPP_PUBLIC
virtual void
spin_once(std::chrono::nanoseconds timeout = std::chrono::nanoseconds(-1));
@@ -402,6 +392,17 @@ public:
void
cancel();
/// Support dynamic switching of the memory strategy.
/**
* Switching the memory strategy while the executor is spinning in another threading could have
* unintended consequences.
* \param[in] memory_strategy Shared pointer to the memory strategy to set.
* \throws std::runtime_error if memory_strategy is null
*/
RCLCPP_PUBLIC
void
set_memory_strategy(memory_strategy::MemoryStrategy::SharedPtr memory_strategy);
/// Returns true if the executor is currently spinning.
/**
* This function can be called asynchronously from any thread.
@@ -412,29 +413,12 @@ public:
is_spinning();
protected:
/// Add a node to executor, execute the next available unit of work, and remove the node.
/**
* Implementation of spin_node_once using std::chrono::nanoseconds
* \param[in] node Shared pointer to the node to add.
* \param[in] timeout How long to wait for work to become available. Negative values cause
* spin_node_once to block indefinitely (the default behavior). A timeout of 0 causes this
* function to be non-blocking.
*/
RCLCPP_PUBLIC
void
spin_node_once_nanoseconds(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node,
std::chrono::nanoseconds timeout);
/// Collect work and execute available work, optionally within a duration.
/**
* Implementation of spin_some and spin_all.
* The exhaustive flag controls if the function will re-collect available work within the duration.
*
* \param[in] max_duration The maximum amount of time to spend executing work, or 0 for no limit.
* \param[in] exhaustive when set to true, continue to collect work and execute (spin_all)
* when set to false, return when all collected work is executed (spin_some)
*/
RCLCPP_PUBLIC
void
spin_some_impl(std::chrono::nanoseconds max_duration, bool exhaustive);
@@ -449,97 +433,124 @@ protected:
void
execute_any_executable(AnyExecutable & any_exec);
/// Run subscription executable.
/**
* Do necessary setup and tear-down as well as executing the subscription.
* \param[in] subscription Subscription to execute
*/
RCLCPP_PUBLIC
static void
execute_subscription(
rclcpp::SubscriptionBase::SharedPtr subscription);
/// Run timer executable.
/**
* Do necessary setup and tear-down as well as executing the timer callback.
* \param[in] timer Timer to execute
*/
RCLCPP_PUBLIC
static void
execute_timer(rclcpp::TimerBase::SharedPtr timer);
/// Run service server executable.
/**
* Do necessary setup and tear-down as well as executing the service server callback.
* \param[in] service Service to execute
*/
RCLCPP_PUBLIC
static void
execute_service(rclcpp::ServiceBase::SharedPtr service);
/// Run service client executable.
/**
* Do necessary setup and tear-down as well as executing the service client callback.
* \param[in] service Service to execute
*/
RCLCPP_PUBLIC
static void
execute_client(rclcpp::ClientBase::SharedPtr client);
/// Gather all of the waitable entities from associated nodes and callback groups.
RCLCPP_PUBLIC
void
collect_entities();
/// Block until more work becomes avilable or timeout is reached.
/**
* Builds a set of waitable entities, which are passed to the middleware.
* After building wait set, waits on middleware to notify.
* \param[in] timeout duration to wait for new work to become available.
* \throws std::runtime_error if the wait set can be cleared
*/
RCLCPP_PUBLIC
void
wait_for_work(std::chrono::nanoseconds timeout = std::chrono::nanoseconds(-1));
/// Check for executable in ready state and populate union structure.
RCLCPP_PUBLIC
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr
get_node_by_group(
const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes,
rclcpp::CallbackGroup::SharedPtr group);
/// Return true if the node has been added to this executor.
/**
* \param[out] any_executable populated union structure of ready executable
* \return true if an executable was ready and any_executable was populated,
* otherwise false
* \param[in] node_ptr a shared pointer that points to a node base interface
* \param[in] weak_groups_to_nodes map to nodes to lookup
* \return true if the node is associated with the executor, otherwise false
*/
RCLCPP_PUBLIC
bool
has_node(
const rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes) const;
RCLCPP_PUBLIC
rclcpp::CallbackGroup::SharedPtr
get_group_by_timer(rclcpp::TimerBase::SharedPtr timer);
/// Add a callback group to an executor
/**
* \see rclcpp::Executor::add_callback_group
*/
RCLCPP_PUBLIC
virtual void
add_callback_group_to_map(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
WeakCallbackGroupsToNodesMap & weak_groups_to_nodes,
bool notify = true) RCPPUTILS_TSA_REQUIRES(mutex_);
/// Remove a callback group from the executor.
/**
* \see rclcpp::Executor::remove_callback_group
*/
RCLCPP_PUBLIC
virtual void
remove_callback_group_from_map(
rclcpp::CallbackGroup::SharedPtr group_ptr,
WeakCallbackGroupsToNodesMap & weak_groups_to_nodes,
bool notify = true) RCPPUTILS_TSA_REQUIRES(mutex_);
RCLCPP_PUBLIC
bool
get_next_ready_executable(AnyExecutable & any_executable);
/// Wait for executable in ready state and populate union structure.
/**
* If an executable is ready, it will return immediately, otherwise
* block based on the timeout for work to become ready.
*
* \param[out] any_executable populated union structure of ready executable
* \param[in] timeout duration of time to wait for work, a negative value
* (the defualt behavior), will make this function block indefinitely
* \return true if an executable was ready and any_executable was populated,
* otherwise false
*/
RCLCPP_PUBLIC
bool
get_next_ready_executable_from_map(
AnyExecutable & any_executable,
const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes);
RCLCPP_PUBLIC
bool
get_next_executable(
AnyExecutable & any_executable,
std::chrono::nanoseconds timeout = std::chrono::nanoseconds(-1));
/// Add all callback groups that can be automatically added from associated nodes.
/**
* The executor, before collecting entities, verifies if any callback group from
* nodes associated with the executor, which is not already associated to an executor,
* can be automatically added to this executor.
* This takes care of any callback group that has been added to a node but not explicitly added
* to the executor.
* It is important to note that in order for the callback groups to be automatically added to an
* executor through this function, the node of the callback groups needs to have been added
* through the `add_node` method.
*/
RCLCPP_PUBLIC
virtual void
add_callback_groups_from_nodes_associated_to_executor() RCPPUTILS_TSA_REQUIRES(mutex_);
/// Spinning state, used to prevent multi threaded calls to spin and to cancel blocking spins.
std::atomic_bool spinning;
/// Guard condition for signaling the rmw layer to wake up for special events.
std::shared_ptr<rclcpp::GuardCondition> interrupt_guard_condition_;
rclcpp::GuardCondition interrupt_guard_condition_;
/// Guard condition for signaling the rmw layer to wake up for system shutdown.
std::shared_ptr<rclcpp::GuardCondition> shutdown_guard_condition_;
/// Wait set for managing entities that the rmw layer waits on.
rcl_wait_set_t wait_set_ = rcl_get_zero_initialized_wait_set();
// Mutex to protect the subsequent memory_strategy_.
mutable std::mutex mutex_;
/// The memory strategy: an interface for handling user-defined memory allocation strategies.
memory_strategy::MemoryStrategy::SharedPtr
memory_strategy_ RCPPUTILS_TSA_PT_GUARDED_BY(mutex_);
/// The context associated with this executor.
std::shared_ptr<rclcpp::Context> context_;
@@ -549,39 +560,33 @@ protected:
virtual void
spin_once_impl(std::chrono::nanoseconds timeout);
/// Waitable containing guard conditions controlling the executor flow.
/**
* This waitable contains the interrupt and shutdown guard condition, as well
* as the guard condition associated with each node and callback group.
* By default, if any change is detected in the monitored entities, the notify
* waitable will awake the executor and rebuild the collections.
*/
std::shared_ptr<rclcpp::executors::ExecutorNotifyWaitable> notify_waitable_;
typedef std::map<rclcpp::CallbackGroup::WeakPtr,
const rclcpp::GuardCondition *,
std::owner_less<rclcpp::CallbackGroup::WeakPtr>>
WeakCallbackGroupsToGuardConditionsMap;
std::atomic_bool entities_need_rebuild_;
/// maps callback groups to guard conditions
WeakCallbackGroupsToGuardConditionsMap
weak_groups_to_guard_conditions_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Collector used to associate executable entities from nodes and guard conditions
rclcpp::executors::ExecutorEntitiesCollector collector_;
/// maps callback groups associated to nodes
WeakCallbackGroupsToNodesMap
weak_groups_associated_with_executor_to_nodes_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Waitset to be waited on.
rclcpp::WaitSet wait_set_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// maps callback groups to nodes associated with executor
WeakCallbackGroupsToNodesMap
weak_groups_to_nodes_associated_with_executor_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Hold the current state of the collection being waited on by the waitset
rclcpp::executors::ExecutorEntitiesCollection current_collection_ RCPPUTILS_TSA_GUARDED_BY(
mutex_);
/// maps all callback groups to nodes
WeakCallbackGroupsToNodesMap
weak_groups_to_nodes_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Hold the current state of the notify waitable being waited on by the waitset
std::shared_ptr<rclcpp::executors::ExecutorNotifyWaitable> current_notify_waitable_
RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Hold the list of executables currently available to be executed.
std::deque<rclcpp::AnyExecutable> ready_executables_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// nodes that are associated with the executor
std::list<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr>
weak_nodes_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// shutdown callback handle registered to Context
rclcpp::OnShutdownCallbackHandle shutdown_callback_handle_;
/// Pointer to implementation
std::unique_ptr<ExecutorImplementation> impl_;
};
} // namespace rclcpp

View File

@@ -21,7 +21,6 @@
#include "rclcpp/executors/multi_threaded_executor.hpp"
#include "rclcpp/executors/single_threaded_executor.hpp"
#include "rclcpp/executors/static_single_threaded_executor.hpp"
#include "rclcpp/experimental/executors/events_executor/events_executor.hpp"
#include "rclcpp/node.hpp"
#include "rclcpp/utilities.hpp"
#include "rclcpp/visibility_control.hpp"

View File

@@ -1,213 +0,0 @@
// Copyright 2023 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__EXECUTORS__EXECUTOR_ENTITIES_COLLECTION_HPP_
#define RCLCPP__EXECUTORS__EXECUTOR_ENTITIES_COLLECTION_HPP_
#include <deque>
#include <functional>
#include <unordered_map>
#include <vector>
#include <rclcpp/any_executable.hpp>
#include <rclcpp/node_interfaces/node_base.hpp>
#include <rclcpp/callback_group.hpp>
#include <rclcpp/executors/executor_notify_waitable.hpp>
#include <rclcpp/visibility_control.hpp>
#include <rclcpp/wait_result.hpp>
#include <rclcpp/wait_set.hpp>
namespace rclcpp
{
namespace executors
{
/// Structure to represent a single entity's entry in a collection
template<typename EntityValueType>
struct CollectionEntry
{
/// Weak pointer to entity type
using EntityWeakPtr = typename EntityValueType::WeakPtr;
/// Shared pointer to entity type
using EntitySharedPtr = typename EntityValueType::SharedPtr;
/// The entity
EntityWeakPtr entity;
/// If relevant, the entity's corresponding callback_group
rclcpp::CallbackGroup::WeakPtr callback_group;
};
/// Update a collection based on another collection
/*
* Iterates update_from and update_to to see which entities have been added/removed between
* the two collections.
*
* For each new entry (in update_from, but not in update_to),
* add the entity and fire the on_added callback
* For each removed entry (in update_to, but not in update_from),
* remove the entity and fire the on_removed callback.
*
* \param[in] update_from The collection representing the next iteration's state
* \param[inout] update_to The collection representing the current iteration's state
* \param[in] on_added Callback fired when a new entity is detected
* \param[in] on_removed Callback fired when an entity is removed
*/
template<typename CollectionType>
void update_entities(
const CollectionType & update_from,
CollectionType & update_to,
std::function<void(const typename CollectionType::EntitySharedPtr &)> on_added,
std::function<void(const typename CollectionType::EntitySharedPtr &)> on_removed
)
{
for (auto it = update_to.begin(); it != update_to.end(); ) {
if (update_from.count(it->first) == 0) {
auto entity = it->second.entity.lock();
if (entity) {
on_removed(entity);
}
it = update_to.erase(it);
} else {
++it;
}
}
for (auto it = update_from.begin(); it != update_from.end(); ++it) {
if (update_to.count(it->first) == 0) {
auto entity = it->second.entity.lock();
if (entity) {
on_added(entity);
}
update_to.insert(*it);
}
}
}
/// A collection of entities, indexed by their corresponding handles
template<typename EntityKeyType, typename EntityValueType>
class EntityCollection
: public std::unordered_map<const EntityKeyType *, CollectionEntry<EntityValueType>>
{
public:
/// Key type of the map
using Key = const EntityKeyType *;
/// Weak pointer to entity type
using EntityWeakPtr = typename EntityValueType::WeakPtr;
/// Shared pointer to entity type
using EntitySharedPtr = typename EntityValueType::SharedPtr;
/// Update this collection based on the contents of another collection
/**
* Update the internal state of this collection, firing callbacks when entities have been
* added or removed.
*
* \param[in] other Collection to compare to
* \param[in] on_added Callback for when entities have been added
* \param[in] on_removed Callback for when entities have been removed
*/
void update(
const EntityCollection<EntityKeyType, EntityValueType> & other,
std::function<void(const EntitySharedPtr &)> on_added,
std::function<void(const EntitySharedPtr &)> on_removed)
{
update_entities(other, *this, on_added, on_removed);
}
};
/// Represent the total set of entities for a single executor
/**
* This allows the entities to be stored from ExecutorEntitiesCollector.
* The structure also makes in convenient to re-evaluate when entities have been added or removed.
*/
struct ExecutorEntitiesCollection
{
/// Collection type for timer entities
using TimerCollection = EntityCollection<rcl_timer_t, rclcpp::TimerBase>;
/// Collection type for subscription entities
using SubscriptionCollection = EntityCollection<rcl_subscription_t, rclcpp::SubscriptionBase>;
/// Collection type for client entities
using ClientCollection = EntityCollection<rcl_client_t, rclcpp::ClientBase>;
/// Collection type for service entities
using ServiceCollection = EntityCollection<rcl_service_t, rclcpp::ServiceBase>;
/// Collection type for waitable entities
using WaitableCollection = EntityCollection<rclcpp::Waitable, rclcpp::Waitable>;
/// Collection type for guard condition entities
using GuardConditionCollection = EntityCollection<rcl_guard_condition_t, rclcpp::GuardCondition>;
/// Collection of timers currently in use by the executor.
TimerCollection timers;
/// Collection of subscriptions currently in use by the executor.
SubscriptionCollection subscriptions;
/// Collection of clients currently in use by the executor.
ClientCollection clients;
/// Collection of services currently in use by the executor.
ServiceCollection services;
/// Collection of guard conditions currently in use by the executor.
GuardConditionCollection guard_conditions;
/// Collection of waitables currently in use by the executor.
WaitableCollection waitables;
/// Check if the entities collection is empty
/**
* \return true if all member collections are empty, false otherwise
*/
bool empty() const;
/// Clear the entities collection
void clear();
};
/// Build an entities collection from callback groups
/**
* Iterates a list of callback groups and adds entities from each valid group
*
* \param[in] callback_groups List of callback groups to check for entities
* \param[inout] colletion Entities collection to populate with found entities
*/
void
build_entities_collection(
const std::vector<rclcpp::CallbackGroup::WeakPtr> & callback_groups,
ExecutorEntitiesCollection & collection);
/// Build a queue of executables ready to be executed
/**
* Iterates a list of entities and adds them to a queue if they are ready.
*
* \param[in] collection Collection of entities corresponding to the current wait set.
* \param[in] wait_result Result of rclcpp::WaitSet::wait corresponding to the collection.
* \param[inout] queue of executables to append new ready executables to
* \return number of new ready executables
*/
size_t
ready_executables(
const ExecutorEntitiesCollection & collection,
rclcpp::WaitResult<rclcpp::WaitSet> & wait_result,
std::deque<rclcpp::AnyExecutable> & executables
);
} // namespace executors
} // namespace rclcpp
#endif // RCLCPP__EXECUTORS__EXECUTOR_ENTITIES_COLLECTION_HPP_

View File

@@ -1,270 +0,0 @@
// Copyright 2023 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__EXECUTORS__EXECUTOR_ENTITIES_COLLECTOR_HPP_
#define RCLCPP__EXECUTORS__EXECUTOR_ENTITIES_COLLECTOR_HPP_
#include <map>
#include <memory>
#include <mutex>
#include <set>
#include <vector>
#include "rcpputils/thread_safety_annotations.hpp"
#include <rclcpp/any_executable.hpp>
#include <rclcpp/node_interfaces/node_base.hpp>
#include <rclcpp/callback_group.hpp>
#include <rclcpp/executors/executor_notify_waitable.hpp>
#include <rclcpp/visibility_control.hpp>
#include <rclcpp/wait_set.hpp>
#include <rclcpp/wait_result.hpp>
namespace rclcpp
{
namespace executors
{
/// Class to monitor a set of nodes and callback groups for changes in entity membership
/**
* This is to be used with an executor to track the membership of various nodes, groups,
* and entities (timers, subscriptions, clients, services, etc) and report status to the
* executor.
*
* In general, users will add either nodes or callback groups to an executor.
* Each node may have callback groups that are automatically associated with executors,
* or callback groups that must be manually associated with an executor.
*
* This object tracks both types of callback groups as well as nodes that have been
* previously added to the executor.
* When a new callback group is added/removed or new entities are added/removed, the
* corresponding node or callback group will signal this to the executor so that the
* entity collection may be rebuilt according to that executor's implementation.
*
*/
class ExecutorEntitiesCollector
{
public:
/// Constructor
/**
* \param[in] notify_waitable Waitable that is used to signal to the executor
* when nodes or callback groups have been added or removed.
*/
RCLCPP_PUBLIC
explicit ExecutorEntitiesCollector(
std::shared_ptr<ExecutorNotifyWaitable> notify_waitable);
/// Destructor
RCLCPP_PUBLIC
~ExecutorEntitiesCollector();
/// Indicate if the entities collector has pending additions or removals.
/**
* \return true if there are pending additions or removals
*/
bool has_pending() const;
/// Add a node to the entity collector
/**
* \param[in] node_ptr a shared pointer that points to a node base interface
* \throw std::runtime_error if the node is associated with an executor
*/
RCLCPP_PUBLIC
void
add_node(rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr);
/// Remove a node from the entity collector
/**
* \param[in] node_ptr a shared pointer that points to a node base interface
* \throw std::runtime_error if the node is associated with an executor
* \throw std::runtime_error if the node is associated with this executor
*/
RCLCPP_PUBLIC
void
remove_node(rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr);
/// Add a callback group to the entity collector
/**
* \param[in] group_ptr a shared pointer that points to a callback group
* \throw std::runtime_error if the callback_group is associated with an executor
*/
RCLCPP_PUBLIC
void
add_callback_group(rclcpp::CallbackGroup::SharedPtr group_ptr);
/// Remove a callback group from the entity collector
/**
* \param[in] group_ptr a shared pointer that points to a callback group
* \throw std::runtime_error if the callback_group is not associated with an executor
* \throw std::runtime_error if the callback_group is not associated with this executor
*/
RCLCPP_PUBLIC
void
remove_callback_group(rclcpp::CallbackGroup::SharedPtr group_ptr);
/// Get all callback groups known to this entity collector
/**
* This will include manually added and automatically added (node associated) groups
* \return vector of all callback groups
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_all_callback_groups() const;
/// Get manually-added callback groups known to this entity collector
/**
* This will include callback groups that have been added via add_callback_group
* \return vector of manually-added callback groups
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_manually_added_callback_groups() const;
/// Get automatically-added callback groups known to this entity collector
/**
* This will include callback groups that are associated with nodes added via add_node
* \return vector of automatically-added callback groups
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_automatically_added_callback_groups() const;
/// Update the underlying collections
/**
* This will prune nodes and callback groups that are no longer valid as well
* as add new callback groups from any associated nodes.
*/
RCLCPP_PUBLIC
void
update_collections();
protected:
using NodeCollection = std::set<
rclcpp::node_interfaces::NodeBaseInterface::WeakPtr,
std::owner_less<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr>>;
using CallbackGroupCollection = std::set<
rclcpp::CallbackGroup::WeakPtr,
std::owner_less<rclcpp::CallbackGroup::WeakPtr>>;
using WeakNodesToGuardConditionsMap = std::map<
rclcpp::node_interfaces::NodeBaseInterface::WeakPtr,
rclcpp::GuardCondition::WeakPtr,
std::owner_less<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr>>;
using WeakGroupsToGuardConditionsMap = std::map<
rclcpp::CallbackGroup::WeakPtr,
rclcpp::GuardCondition::WeakPtr,
std::owner_less<rclcpp::CallbackGroup::WeakPtr>>;
/// Implementation of removing a node from the collector.
/**
* This will disassociate the node from the collector and remove any
* automatically-added callback groups
*
* This takes and returns an iterator so it may be used as:
*
* it = remove_weak_node(it);
*
* \param[in] weak_node iterator to the weak node to be removed
* \return Valid updated iterator in the same collection
*/
RCLCPP_PUBLIC
NodeCollection::iterator
remove_weak_node(NodeCollection::iterator weak_node) RCPPUTILS_TSA_REQUIRES(mutex_);
/// Implementation of removing a callback group from the collector.
/**
* This will disassociate the callback group from the collector
*
* This takes and returns an iterator so it may be used as:
*
* it = remove_weak_callback_group(it);
*
* \param[in] weak_group_it iterator to the weak group to be removed
* \param[in] collection the collection to remove the group from
* (manually or automatically added)
* \return Valid updated iterator in the same collection
*/
RCLCPP_PUBLIC
CallbackGroupCollection::iterator
remove_weak_callback_group(
CallbackGroupCollection::iterator weak_group_it,
CallbackGroupCollection & collection) RCPPUTILS_TSA_REQUIRES(mutex_);
/// Implementation of adding a callback group
/**
* \param[in] group_ptr the group to add
* \param[in] collection the collection to add the group to
*/
RCLCPP_PUBLIC
void
add_callback_group_to_collection(
rclcpp::CallbackGroup::SharedPtr group_ptr,
CallbackGroupCollection & collection) RCPPUTILS_TSA_REQUIRES(mutex_);
/// Iterate over queued added/remove nodes and callback_groups
RCLCPP_PUBLIC
void
process_queues() RCPPUTILS_TSA_REQUIRES(mutex_);
/// Check a collection of nodes and add any new callback_groups that
/// are set to be automatically associated via the node.
RCLCPP_PUBLIC
void
add_automatically_associated_callback_groups(
const NodeCollection & nodes_to_check) RCPPUTILS_TSA_REQUIRES(mutex_);
/// Check all nodes and group for expired weak pointers and remove them.
RCLCPP_PUBLIC
void
prune_invalid_nodes_and_groups() RCPPUTILS_TSA_REQUIRES(mutex_);
/// mutex to protect collections and pending queues
mutable std::mutex mutex_;
/// Callback groups that were added via `add_callback_group`
CallbackGroupCollection manually_added_groups_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Callback groups that were added by their association with added nodes
CallbackGroupCollection automatically_added_groups_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// nodes that are associated with the executor
NodeCollection weak_nodes_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Track guard conditions associated with added nodes
WeakNodesToGuardConditionsMap weak_nodes_to_guard_conditions_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Track guard conditions associated with added callback groups
WeakGroupsToGuardConditionsMap weak_groups_to_guard_conditions_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// nodes that have been added since the last update.
NodeCollection pending_added_nodes_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// nodes that have been removed since the last update.
NodeCollection pending_removed_nodes_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// callback groups that have been added since the last update.
CallbackGroupCollection pending_manually_added_groups_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// callback groups that have been removed since the last update.
CallbackGroupCollection pending_manually_removed_groups_ RCPPUTILS_TSA_GUARDED_BY(mutex_);
/// Waitable to add guard conditions to
std::shared_ptr<ExecutorNotifyWaitable> notify_waitable_;
};
} // namespace executors
} // namespace rclcpp
//
#endif // RCLCPP__EXECUTORS__EXECUTOR_ENTITIES_COLLECTOR_HPP_

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@@ -1,158 +0,0 @@
// Copyright 2023 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__EXECUTORS__EXECUTOR_NOTIFY_WAITABLE_HPP_
#define RCLCPP__EXECUTORS__EXECUTOR_NOTIFY_WAITABLE_HPP_
#include <functional>
#include <memory>
#include <mutex>
#include <set>
#include "rclcpp/guard_condition.hpp"
#include "rclcpp/waitable.hpp"
namespace rclcpp
{
namespace executors
{
/// Maintain a collection of guard conditions from associated nodes and callback groups
/// to signal to the executor when associated entities have changed.
class ExecutorNotifyWaitable : public rclcpp::Waitable
{
public:
RCLCPP_SMART_PTR_DEFINITIONS(ExecutorNotifyWaitable)
// Constructor
/**
* \param[in] on_execute_callback Callback to execute when one of the conditions
* of this waitable has signaled the wait_set.
*/
RCLCPP_PUBLIC
explicit ExecutorNotifyWaitable(std::function<void(void)> on_execute_callback = {});
// Destructor
RCLCPP_PUBLIC
~ExecutorNotifyWaitable() override = default;
RCLCPP_PUBLIC
ExecutorNotifyWaitable(const ExecutorNotifyWaitable & other);
RCLCPP_PUBLIC
ExecutorNotifyWaitable & operator=(const ExecutorNotifyWaitable & other);
/// Add conditions to the wait set
/**
* \param[inout] wait_set structure that conditions will be added to
*/
RCLCPP_PUBLIC
void
add_to_wait_set(rcl_wait_set_t * wait_set) override;
/// Check conditions against the wait set
/**
* \param[inout] wait_set structure that internal elements will be checked against.
* \return true if this waitable is ready to be executed, false otherwise.
*/
RCLCPP_PUBLIC
bool
is_ready(rcl_wait_set_t * wait_set) override;
/// Perform work associated with the waitable.
/**
* This will call the callback provided in the constructor.
* \param[in] data Data to be use for the execute, if available, else nullptr.
*/
RCLCPP_PUBLIC
void
execute(std::shared_ptr<void> & data) override;
/// Retrieve data to be used in the next execute call.
/**
* \return If available, data to be used, otherwise nullptr
*/
RCLCPP_PUBLIC
std::shared_ptr<void>
take_data() override;
/// Take the data from an entity ID so that it can be consumed with `execute`.
/**
* \param[in] id ID of the entity to take data from.
* \return If available, data to be used, otherwise nullptr
* \sa rclcpp::Waitable::take_data_by_entity_id
*/
RCLCPP_PUBLIC
std::shared_ptr<void>
take_data_by_entity_id(size_t id) override;
/// Set a callback to be called whenever the waitable becomes ready.
/**
* \param[in] callback callback to set
* \sa rclcpp::Waitable::set_on_ready_callback
*/
RCLCPP_PUBLIC
void
set_on_ready_callback(std::function<void(size_t, int)> callback) override;
/// Add a guard condition to be waited on.
/**
* \param[in] guard_condition The guard condition to add.
*/
RCLCPP_PUBLIC
void
add_guard_condition(rclcpp::GuardCondition::WeakPtr guard_condition);
/// Unset any callback registered via set_on_ready_callback.
/**
* \sa rclcpp::Waitable::clear_on_ready_callback
*/
RCLCPP_PUBLIC
void
clear_on_ready_callback() override;
/// Remove a guard condition from being waited on.
/**
* \param[in] weak_guard_condition The guard condition to remove.
*/
RCLCPP_PUBLIC
void
remove_guard_condition(rclcpp::GuardCondition::WeakPtr weak_guard_condition);
/// Get the number of ready guard_conditions
/**
* \return The number of guard_conditions associated with the Waitable.
*/
RCLCPP_PUBLIC
size_t
get_number_of_ready_guard_conditions() override;
private:
/// Callback to run when waitable executes
std::function<void(void)> execute_callback_;
std::mutex guard_condition_mutex_;
std::function<void(size_t)> on_ready_callback_;
/// The collection of guard conditions to be waited on.
std::set<rclcpp::GuardCondition::WeakPtr,
std::owner_less<rclcpp::GuardCondition::WeakPtr>> notify_guard_conditions_;
};
} // namespace executors
} // namespace rclcpp
#endif // RCLCPP__EXECUTORS__EXECUTOR_NOTIFY_WAITABLE_HPP_

View File

@@ -0,0 +1,357 @@
// Copyright 2020 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__EXECUTORS__STATIC_EXECUTOR_ENTITIES_COLLECTOR_HPP_
#define RCLCPP__EXECUTORS__STATIC_EXECUTOR_ENTITIES_COLLECTOR_HPP_
#include <chrono>
#include <list>
#include <map>
#include <memory>
#include <vector>
#include "rcl/guard_condition.h"
#include "rcl/wait.h"
#include "rclcpp/experimental/executable_list.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/memory_strategy.hpp"
#include "rclcpp/visibility_control.hpp"
#include "rclcpp/waitable.hpp"
namespace rclcpp
{
namespace executors
{
typedef std::map<rclcpp::CallbackGroup::WeakPtr,
rclcpp::node_interfaces::NodeBaseInterface::WeakPtr,
std::owner_less<rclcpp::CallbackGroup::WeakPtr>> WeakCallbackGroupsToNodesMap;
class StaticExecutorEntitiesCollector final
: public rclcpp::Waitable,
public std::enable_shared_from_this<StaticExecutorEntitiesCollector>
{
public:
RCLCPP_SMART_PTR_DEFINITIONS(StaticExecutorEntitiesCollector)
// Constructor
RCLCPP_PUBLIC
StaticExecutorEntitiesCollector() = default;
// Destructor
RCLCPP_PUBLIC
~StaticExecutorEntitiesCollector();
/// Initialize StaticExecutorEntitiesCollector
/**
* \param p_wait_set A reference to the wait set to be used in the executor
* \param memory_strategy Shared pointer to the memory strategy to set.
* \throws std::runtime_error if memory strategy is null
*/
RCLCPP_PUBLIC
void
init(
rcl_wait_set_t * p_wait_set,
rclcpp::memory_strategy::MemoryStrategy::SharedPtr memory_strategy);
/// Finalize StaticExecutorEntitiesCollector to clear resources
RCLCPP_PUBLIC
bool
is_init() {return initialized_;}
RCLCPP_PUBLIC
void
fini();
/// Execute the waitable.
RCLCPP_PUBLIC
void
execute(std::shared_ptr<void> & data) override;
/// Take the data so that it can be consumed with `execute`.
/**
* For `StaticExecutorEntitiesCollector`, this always return `nullptr`.
* \sa rclcpp::Waitable::take_data()
*/
RCLCPP_PUBLIC
std::shared_ptr<void>
take_data() override;
/// Function to add_handles_to_wait_set and wait for work and
/**
* block until the wait set is ready or until the timeout has been exceeded.
* \throws std::runtime_error if wait set couldn't be cleared or filled.
* \throws any rcl errors from rcl_wait, \see rclcpp::exceptions::throw_from_rcl_error()
*/
RCLCPP_PUBLIC
void
refresh_wait_set(std::chrono::nanoseconds timeout = std::chrono::nanoseconds(-1));
/**
* \throws std::runtime_error if it couldn't add guard condition to wait set
*/
RCLCPP_PUBLIC
void
add_to_wait_set(rcl_wait_set_t * wait_set) override;
RCLCPP_PUBLIC
size_t
get_number_of_ready_guard_conditions() override;
/// Add a callback group to an executor.
/**
* \see rclcpp::Executor::add_callback_group
*/
RCLCPP_PUBLIC
bool
add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr);
/// Add a callback group to an executor.
/**
* \see rclcpp::Executor::add_callback_group
* \return boolean whether the node from the callback group is new
*/
RCLCPP_PUBLIC
bool
add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
WeakCallbackGroupsToNodesMap & weak_groups_to_nodes);
/// Remove a callback group from the executor.
/**
* \see rclcpp::Executor::remove_callback_group
*/
RCLCPP_PUBLIC
bool
remove_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr);
/// Remove a callback group from the executor.
/**
* \see rclcpp::Executor::remove_callback_group_from_map
*/
RCLCPP_PUBLIC
bool
remove_callback_group_from_map(
rclcpp::CallbackGroup::SharedPtr group_ptr,
WeakCallbackGroupsToNodesMap & weak_groups_to_nodes);
/**
* \see rclcpp::Executor::add_node()
* \throw std::runtime_error if node was already added
*/
RCLCPP_PUBLIC
bool
add_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr);
/**
* \see rclcpp::Executor::remove_node()
* \throw std::runtime_error if no guard condition is associated with node.
*/
RCLCPP_PUBLIC
bool
remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr);
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_all_callback_groups();
/// Get callback groups that belong to executor.
/**
* \see rclcpp::Executor::get_manually_added_callback_groups()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_manually_added_callback_groups();
/// Get callback groups that belong to executor.
/**
* \see rclcpp::Executor::get_automatically_added_callback_groups_from_nodes()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_automatically_added_callback_groups_from_nodes();
/// Complete all available queued work without blocking.
/**
* This function checks if after the guard condition was triggered
* (or a spurious wakeup happened) we are really ready to execute
* i.e. re-collect entities
*/
RCLCPP_PUBLIC
bool
is_ready(rcl_wait_set_t * wait_set) override;
/// Return number of timers
/**
* \return number of timers
*/
RCLCPP_PUBLIC
size_t
get_number_of_timers() {return exec_list_.number_of_timers;}
/// Return number of subscriptions
/**
* \return number of subscriptions
*/
RCLCPP_PUBLIC
size_t
get_number_of_subscriptions() {return exec_list_.number_of_subscriptions;}
/// Return number of services
/**
* \return number of services
*/
RCLCPP_PUBLIC
size_t
get_number_of_services() {return exec_list_.number_of_services;}
/// Return number of clients
/**
* \return number of clients
*/
RCLCPP_PUBLIC
size_t
get_number_of_clients() {return exec_list_.number_of_clients;}
/// Return number of waitables
/**
* \return number of waitables
*/
RCLCPP_PUBLIC
size_t
get_number_of_waitables() {return exec_list_.number_of_waitables;}
/** Return a SubscritionBase Sharedptr by index.
* \param[in] i The index of the SubscritionBase
* \return a SubscritionBase shared pointer
* \throws std::out_of_range if the argument is higher than the size of the structrue.
*/
RCLCPP_PUBLIC
rclcpp::SubscriptionBase::SharedPtr
get_subscription(size_t i) {return exec_list_.subscription[i];}
/** Return a TimerBase Sharedptr by index.
* \param[in] i The index of the TimerBase
* \return a TimerBase shared pointer
* \throws std::out_of_range if the argument is higher than the size.
*/
RCLCPP_PUBLIC
rclcpp::TimerBase::SharedPtr
get_timer(size_t i) {return exec_list_.timer[i];}
/** Return a ServiceBase Sharedptr by index.
* \param[in] i The index of the ServiceBase
* \return a ServiceBase shared pointer
* \throws std::out_of_range if the argument is higher than the size.
*/
RCLCPP_PUBLIC
rclcpp::ServiceBase::SharedPtr
get_service(size_t i) {return exec_list_.service[i];}
/** Return a ClientBase Sharedptr by index
* \param[in] i The index of the ClientBase
* \return a ClientBase shared pointer
* \throws std::out_of_range if the argument is higher than the size.
*/
RCLCPP_PUBLIC
rclcpp::ClientBase::SharedPtr
get_client(size_t i) {return exec_list_.client[i];}
/** Return a Waitable Sharedptr by index
* \param[in] i The index of the Waitable
* \return a Waitable shared pointer
* \throws std::out_of_range if the argument is higher than the size.
*/
RCLCPP_PUBLIC
rclcpp::Waitable::SharedPtr
get_waitable(size_t i) {return exec_list_.waitable[i];}
private:
/// Function to reallocate space for entities in the wait set.
/**
* \throws std::runtime_error if wait set couldn't be cleared or resized.
*/
void
prepare_wait_set();
void
fill_executable_list();
void
fill_memory_strategy();
/// Return true if the node belongs to the collector
/**
* \param[in] node_ptr a node base interface shared pointer
* \param[in] weak_groups_to_nodes map to nodes to lookup
* \return boolean whether a node belongs the collector
*/
bool
has_node(
const rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes) const;
/// Add all callback groups that can be automatically added by any executor
/// and is not already associated with an executor from nodes
/// that are associated with executor
/**
* \see rclcpp::Executor::add_callback_groups_from_nodes_associated_to_executor()
*/
void
add_callback_groups_from_nodes_associated_to_executor();
void
fill_executable_list_from_map(const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes);
/// Memory strategy: an interface for handling user-defined memory allocation strategies.
rclcpp::memory_strategy::MemoryStrategy::SharedPtr memory_strategy_;
// maps callback groups to nodes.
WeakCallbackGroupsToNodesMap weak_groups_associated_with_executor_to_nodes_;
// maps callback groups to nodes.
WeakCallbackGroupsToNodesMap weak_groups_to_nodes_associated_with_executor_;
typedef std::map<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr,
const rclcpp::GuardCondition *,
std::owner_less<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr>>
WeakNodesToGuardConditionsMap;
WeakNodesToGuardConditionsMap weak_nodes_to_guard_conditions_;
/// List of weak nodes registered in the static executor
std::list<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr> weak_nodes_;
// Mutex to protect vector of new nodes.
std::mutex new_nodes_mutex_;
std::vector<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr> new_nodes_;
/// Wait set for managing entities that the rmw layer waits on.
rcl_wait_set_t * p_wait_set_ = nullptr;
/// Executable list: timers, subscribers, clients, services and waitables
rclcpp::experimental::ExecutableList exec_list_;
/// Bool to check if the entities collector has been initialized
bool initialized_ = false;
};
} // namespace executors
} // namespace rclcpp
#endif // RCLCPP__EXECUTORS__STATIC_EXECUTOR_ENTITIES_COLLECTOR_HPP_

View File

@@ -15,13 +15,24 @@
#ifndef RCLCPP__EXECUTORS__STATIC_SINGLE_THREADED_EXECUTOR_HPP_
#define RCLCPP__EXECUTORS__STATIC_SINGLE_THREADED_EXECUTOR_HPP_
#include <atomic>
#include <chrono>
#include <cassert>
#include <cstdlib>
#include <memory>
#include <vector>
#include <string>
#include "rmw/rmw.h"
#include "rclcpp/executor.hpp"
#include "rclcpp/executors/executor_entities_collection.hpp"
#include "rclcpp/executors/single_threaded_executor.hpp"
#include "rclcpp/executors/static_executor_entities_collector.hpp"
#include "rclcpp/experimental/executable_list.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/memory_strategies.hpp"
#include "rclcpp/node.hpp"
#include "rclcpp/rate.hpp"
#include "rclcpp/utilities.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
@@ -54,7 +65,7 @@ public:
explicit StaticSingleThreadedExecutor(
const rclcpp::ExecutorOptions & options = rclcpp::ExecutorOptions());
/// Default destructor.
/// Default destrcutor.
RCLCPP_PUBLIC
virtual ~StaticSingleThreadedExecutor();
@@ -105,20 +116,92 @@ public:
void
spin_all(std::chrono::nanoseconds max_duration) override;
/// Add a callback group to an executor.
/**
* \sa rclcpp::Executor::add_callback_group
*/
RCLCPP_PUBLIC
void
add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify = true) override;
/// Remove callback group from the executor
/**
* \sa rclcpp::Executor::remove_callback_group
*/
RCLCPP_PUBLIC
void
remove_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
bool notify = true) override;
/// Add a node to the executor.
/**
* \sa rclcpp::Executor::add_node
*/
RCLCPP_PUBLIC
void
add_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify = true) override;
/// Convenience function which takes Node and forwards NodeBaseInterface.
/**
* \sa rclcpp::StaticSingleThreadedExecutor::add_node
*/
RCLCPP_PUBLIC
void
add_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify = true) override;
/// Remove a node from the executor.
/**
* \sa rclcpp::Executor::remove_node
*/
RCLCPP_PUBLIC
void
remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify = true) override;
/// Convenience function which takes Node and forwards NodeBaseInterface.
/**
* \sa rclcpp::Executor::remove_node
*/
RCLCPP_PUBLIC
void
remove_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify = true) override;
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_all_callback_groups() override;
/// Get callback groups that belong to executor.
/**
* \sa rclcpp::Executor::get_manually_added_callback_groups()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_manually_added_callback_groups() override;
/// Get callback groups that belong to executor.
/**
* \sa rclcpp::Executor::get_automatically_added_callback_groups_from_nodes()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_automatically_added_callback_groups_from_nodes() override;
protected:
/**
* @brief Executes ready executables from wait set.
* @param collection entities to evaluate for ready executables.
* @param wait_result result to check for ready executables.
* @param spin_once if true executes only the first ready executable.
* @return true if any executable was ready.
*/
RCLCPP_PUBLIC
bool
execute_ready_executables(
const rclcpp::executors::ExecutorEntitiesCollection & collection,
rclcpp::WaitResult<rclcpp::WaitSet> & wait_result,
bool spin_once);
execute_ready_executables(bool spin_once = false);
RCLCPP_PUBLIC
void
@@ -130,6 +213,8 @@ protected:
private:
RCLCPP_DISABLE_COPY(StaticSingleThreadedExecutor)
StaticExecutorEntitiesCollector::SharedPtr entities_collector_;
};
} // namespace executors

View File

@@ -24,7 +24,6 @@
#include "rclcpp/allocator/allocator_deleter.hpp"
#include "rclcpp/experimental/buffers/buffer_implementation_base.hpp"
#include "rclcpp/macros.hpp"
#include "tracetools/tracetools.h"
namespace rclcpp
{
@@ -95,10 +94,6 @@ public:
buffer_ = std::move(buffer_impl);
TRACEPOINT(
rclcpp_buffer_to_ipb,
static_cast<const void *>(buffer_.get()),
static_cast<const void *>(this));
if (!allocator) {
message_allocator_ = std::make_shared<MessageAlloc>();
} else {

View File

@@ -25,7 +25,6 @@
#include "rclcpp/logging.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
#include "tracetools/tracetools.h"
namespace rclcpp
{
@@ -52,7 +51,6 @@ public:
if (capacity == 0) {
throw std::invalid_argument("capacity must be a positive, non-zero value");
}
TRACEPOINT(rclcpp_construct_ring_buffer, static_cast<const void *>(this), capacity_);
}
virtual ~RingBufferImplementation() {}
@@ -69,12 +67,6 @@ public:
write_index_ = next_(write_index_);
ring_buffer_[write_index_] = std::move(request);
TRACEPOINT(
rclcpp_ring_buffer_enqueue,
static_cast<const void *>(this),
write_index_,
size_ + 1,
is_full_());
if (is_full_()) {
read_index_ = next_(read_index_);
@@ -94,15 +86,11 @@ public:
std::lock_guard<std::mutex> lock(mutex_);
if (!has_data_()) {
return BufferT();
RCLCPP_ERROR(rclcpp::get_logger("rclcpp"), "Calling dequeue on empty intra-process buffer");
throw std::runtime_error("Calling dequeue on empty intra-process buffer");
}
auto request = std::move(ring_buffer_[read_index_]);
TRACEPOINT(
rclcpp_ring_buffer_dequeue,
static_cast<const void *>(this),
read_index_,
size_ - 1);
read_index_ = next_(read_index_);
size_--;
@@ -148,10 +136,7 @@ public:
return is_full_();
}
void clear()
{
TRACEPOINT(rclcpp_ring_buffer_clear, static_cast<const void *>(this));
}
void clear() {}
private:
/// Get the next index value for the ring buffer

View File

@@ -1,286 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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__EXECUTORS__EVENTS_EXECUTOR__EVENTS_EXECUTOR_HPP_
#define RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__EVENTS_EXECUTOR_HPP_
#include <atomic>
#include <chrono>
#include <memory>
#include <vector>
#include "rclcpp/executor.hpp"
#include "rclcpp/executors/executor_entities_collection.hpp"
#include "rclcpp/executors/executor_entities_collector.hpp"
#include "rclcpp/experimental/executors/events_executor/events_executor_event_types.hpp"
#include "rclcpp/experimental/executors/events_executor/events_queue.hpp"
#include "rclcpp/experimental/executors/events_executor/simple_events_queue.hpp"
#include "rclcpp/experimental/timers_manager.hpp"
#include "rclcpp/node.hpp"
namespace rclcpp
{
namespace experimental
{
namespace executors
{
/// Events executor implementation
/**
* This executor uses an events queue and a timers manager to execute entities from its
* associated nodes and callback groups.
* ROS 2 entities allow to set callback functions that are invoked when the entity is triggered
* or has work to do. The events-executor sets these callbacks such that they push an
* event into its queue.
*
* This executor tries to reduce as much as possible the amount of maintenance operations.
* This allows to use customized `EventsQueue` classes to achieve different goals such
* as very low CPU usage, bounded memory requirement, determinism, etc.
*
* The executor uses a weak ownership model and it locks entities only while executing
* their related events.
*
* To run this executor:
* rclcpp::experimental::executors::EventsExecutor executor;
* executor.add_node(node);
* executor.spin();
* executor.remove_node(node);
*/
class EventsExecutor : public rclcpp::Executor
{
friend class EventsExecutorEntitiesCollector;
public:
RCLCPP_SMART_PTR_DEFINITIONS(EventsExecutor)
/// Default constructor. See the default constructor for Executor.
/**
* \param[in] events_queue The queue used to store events.
* \param[in] execute_timers_separate_thread If true, timers are executed in a separate
* thread. If false, timers are executed in the same thread as all other entities.
* \param[in] options Options used to configure the executor.
*/
RCLCPP_PUBLIC
explicit EventsExecutor(
rclcpp::experimental::executors::EventsQueue::UniquePtr events_queue = std::make_unique<
rclcpp::experimental::executors::SimpleEventsQueue>(),
bool execute_timers_separate_thread = false,
const rclcpp::ExecutorOptions & options = rclcpp::ExecutorOptions());
/// Default destructor.
RCLCPP_PUBLIC
virtual ~EventsExecutor();
/// Events executor implementation of spin.
/**
* This function will block until work comes in, execute it, and keep blocking.
* It will only be interrupted by a CTRL-C (managed by the global signal handler).
* \throws std::runtime_error when spin() called while already spinning
*/
RCLCPP_PUBLIC
void
spin() override;
/// Events executor implementation of spin some
/**
* This non-blocking function will execute the timers and events
* that were ready when this API was called, until timeout or no
* more work available. New ready-timers/events arrived while
* executing work, won't be taken into account here.
*
* Example:
* while(condition) {
* spin_some();
* sleep(); // User should have some sync work or
* // sleep to avoid a 100% CPU usage
* }
*/
RCLCPP_PUBLIC
void
spin_some(std::chrono::nanoseconds max_duration = std::chrono::nanoseconds(0)) override;
/// Events executor implementation of spin all
/**
* This non-blocking function will execute timers and events
* until timeout or no more work available. If new ready-timers/events
* arrive while executing work available, they will be executed
* as long as the timeout hasn't expired.
*
* Example:
* while(condition) {
* spin_all();
* sleep(); // User should have some sync work or
* // sleep to avoid a 100% CPU usage
* }
*/
RCLCPP_PUBLIC
void
spin_all(std::chrono::nanoseconds max_duration) override;
/// Add a node to the executor.
/**
* \sa rclcpp::Executor::add_node
*/
RCLCPP_PUBLIC
void
add_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify = true) override;
/// Convenience function which takes Node and forwards NodeBaseInterface.
/**
* \sa rclcpp::EventsExecutor::add_node
*/
RCLCPP_PUBLIC
void
add_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify = true) override;
/// Remove a node from the executor.
/**
* \sa rclcpp::Executor::remove_node
*/
RCLCPP_PUBLIC
void
remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify = true) override;
/// Convenience function which takes Node and forwards NodeBaseInterface.
/**
* \sa rclcpp::Executor::remove_node
*/
RCLCPP_PUBLIC
void
remove_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify = true) override;
/// Add a callback group to an executor.
/**
* \sa rclcpp::Executor::add_callback_group
*/
RCLCPP_PUBLIC
void
add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify = true) override;
/// Remove callback group from the executor
/**
* \sa rclcpp::Executor::remove_callback_group
*/
RCLCPP_PUBLIC
void
remove_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
bool notify = true) override;
/// Get callback groups that belong to executor.
/**
* \sa rclcpp::Executor::get_all_callback_groups()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_all_callback_groups() override;
/// Get callback groups that belong to executor.
/**
* \sa rclcpp::Executor::get_manually_added_callback_groups()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_manually_added_callback_groups() override;
/// Get callback groups that belong to executor.
/**
* \sa rclcpp::Executor::get_automatically_added_callback_groups_from_nodes()
*/
RCLCPP_PUBLIC
std::vector<rclcpp::CallbackGroup::WeakPtr>
get_automatically_added_callback_groups_from_nodes() override;
protected:
/// Internal implementation of spin_once
RCLCPP_PUBLIC
void
spin_once_impl(std::chrono::nanoseconds timeout) override;
/// Internal implementation of spin_some
RCLCPP_PUBLIC
void
spin_some_impl(std::chrono::nanoseconds max_duration, bool exhaustive);
private:
RCLCPP_DISABLE_COPY(EventsExecutor)
/// Execute a provided executor event if its associated entities are available
void
execute_event(const ExecutorEvent & event);
/// Collect entities from callback groups and refresh the current collection with them
void
refresh_current_collection_from_callback_groups();
/// Refresh the current collection using the provided new_collection
void
refresh_current_collection(const rclcpp::executors::ExecutorEntitiesCollection & new_collection);
/// Create a listener callback function for the provided entity
std::function<void(size_t)>
create_entity_callback(void * entity_key, ExecutorEventType type);
/// Create a listener callback function for the provided waitable entity
std::function<void(size_t, int)>
create_waitable_callback(const rclcpp::Waitable * waitable_id);
/// Searches for the provided entity_id in the collection and returns the entity if valid
template<typename CollectionType>
typename CollectionType::EntitySharedPtr
retrieve_entity(typename CollectionType::Key entity_id, CollectionType & collection)
{
// Check if the entity_id is in the collection
auto it = collection.find(entity_id);
if (it == collection.end()) {
return nullptr;
}
// Check if the entity associated with the entity_id is valid
// and remove it from the collection if it isn't
auto entity = it->second.entity.lock();
if (!entity) {
collection.erase(it);
}
// Return the retrieved entity (this can be a nullptr if the entity was not valid)
return entity;
}
/// Queue where entities can push events
rclcpp::experimental::executors::EventsQueue::UniquePtr events_queue_;
std::shared_ptr<rclcpp::executors::ExecutorEntitiesCollector> entities_collector_;
std::shared_ptr<rclcpp::executors::ExecutorEntitiesCollection> current_entities_collection_;
std::shared_ptr<rclcpp::executors::ExecutorNotifyWaitable> notify_waitable_;
/// Flag used to reduce the number of unnecessary waitable events
std::atomic<bool> notify_waitable_event_pushed_ {false};
/// Timers manager used to track and/or execute associated timers
std::shared_ptr<rclcpp::experimental::TimersManager> timers_manager_;
};
} // namespace executors
} // namespace experimental
} // namespace rclcpp
#endif // RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__EVENTS_EXECUTOR_HPP_

View File

@@ -1,46 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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__EXECUTORS__EVENTS_EXECUTOR__EVENTS_EXECUTOR_EVENT_TYPES_HPP_
#define RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__EVENTS_EXECUTOR_EVENT_TYPES_HPP_
namespace rclcpp
{
namespace experimental
{
namespace executors
{
enum ExecutorEventType
{
CLIENT_EVENT,
SUBSCRIPTION_EVENT,
SERVICE_EVENT,
TIMER_EVENT,
WAITABLE_EVENT
};
struct ExecutorEvent
{
const void * entity_key;
int waitable_data;
ExecutorEventType type;
size_t num_events;
};
} // namespace executors
} // namespace experimental
} // namespace rclcpp
#endif // RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__EVENTS_EXECUTOR_EVENT_TYPES_HPP_

View File

@@ -1,100 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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__EXECUTORS__EVENTS_EXECUTOR__EVENTS_QUEUE_HPP_
#define RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__EVENTS_QUEUE_HPP_
#include <queue>
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
#include "rclcpp/experimental/executors/events_executor/events_executor_event_types.hpp"
namespace rclcpp
{
namespace experimental
{
namespace executors
{
/**
* @brief This abstract class can be used to implement different types of queues
* where `ExecutorEvent` can be stored.
* The derived classes should choose which underlying container to use and
* the strategy for pushing and popping events.
* For example a queue implementation may be bounded or unbounded and have
* different pruning strategies.
* Implementations may or may not check the validity of events and decide how to handle
* the situation where an event is not valid anymore (e.g. a subscription history cache overruns)
*/
class EventsQueue
{
public:
RCLCPP_SMART_PTR_ALIASES_ONLY(EventsQueue)
RCLCPP_PUBLIC
EventsQueue() = default;
/**
* @brief Destruct the object.
*/
RCLCPP_PUBLIC
virtual ~EventsQueue() = default;
/**
* @brief push event into the queue
* @param event The event to push into the queue
*/
RCLCPP_PUBLIC
virtual
void
enqueue(const rclcpp::experimental::executors::ExecutorEvent & event) = 0;
/**
* @brief Extracts an event from the queue, eventually waiting until timeout
* if none is available.
* @return true if event has been found, false if timeout
*/
RCLCPP_PUBLIC
virtual
bool
dequeue(
rclcpp::experimental::executors::ExecutorEvent & event,
std::chrono::nanoseconds timeout = std::chrono::nanoseconds::max()) = 0;
/**
* @brief Test whether queue is empty
* @return true if the queue's size is 0, false otherwise.
*/
RCLCPP_PUBLIC
virtual
bool
empty() const = 0;
/**
* @brief Returns the number of elements in the queue.
* @return the number of elements in the queue.
*/
RCLCPP_PUBLIC
virtual
size_t
size() const = 0;
};
} // namespace executors
} // namespace experimental
} // namespace rclcpp
#endif // RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__EVENTS_QUEUE_HPP_

View File

@@ -1,134 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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__EXECUTORS__EVENTS_EXECUTOR__SIMPLE_EVENTS_QUEUE_HPP_
#define RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__SIMPLE_EVENTS_QUEUE_HPP_
#include <condition_variable>
#include <mutex>
#include <queue>
#include <utility>
#include "rclcpp/experimental/executors/events_executor/events_queue.hpp"
namespace rclcpp
{
namespace experimental
{
namespace executors
{
/**
* @brief This class implements an EventsQueue as a simple wrapper around a std::queue.
* It does not perform any checks about the size of queue, which can grow
* unbounded without being pruned.
* The simplicity of this implementation makes it suitable for optimizing CPU usage.
*/
class SimpleEventsQueue : public EventsQueue
{
public:
RCLCPP_PUBLIC
~SimpleEventsQueue() override = default;
/**
* @brief enqueue event into the queue
* Thread safe
* @param event The event to enqueue into the queue
*/
RCLCPP_PUBLIC
void
enqueue(const rclcpp::experimental::executors::ExecutorEvent & event) override
{
rclcpp::experimental::executors::ExecutorEvent single_event = event;
single_event.num_events = 1;
{
std::unique_lock<std::mutex> lock(mutex_);
for (size_t ev = 0; ev < event.num_events; ev++) {
event_queue_.push(single_event);
}
}
events_queue_cv_.notify_one();
}
/**
* @brief waits for an event until timeout, gets a single event
* Thread safe
* @return true if event, false if timeout
*/
RCLCPP_PUBLIC
bool
dequeue(
rclcpp::experimental::executors::ExecutorEvent & event,
std::chrono::nanoseconds timeout = std::chrono::nanoseconds::max()) override
{
std::unique_lock<std::mutex> lock(mutex_);
// Initialize to true because it's only needed if we have a valid timeout
bool has_data = true;
if (timeout != std::chrono::nanoseconds::max()) {
has_data =
events_queue_cv_.wait_for(lock, timeout, [this]() {return !event_queue_.empty();});
} else {
events_queue_cv_.wait(lock, [this]() {return !event_queue_.empty();});
}
if (has_data) {
event = event_queue_.front();
event_queue_.pop();
return true;
}
return false;
}
/**
* @brief Test whether queue is empty
* Thread safe
* @return true if the queue's size is 0, false otherwise.
*/
RCLCPP_PUBLIC
bool
empty() const override
{
std::unique_lock<std::mutex> lock(mutex_);
return event_queue_.empty();
}
/**
* @brief Returns the number of elements in the queue.
* Thread safe
* @return the number of elements in the queue.
*/
RCLCPP_PUBLIC
size_t
size() const override
{
std::unique_lock<std::mutex> lock(mutex_);
return event_queue_.size();
}
private:
// The underlying queue implementation
std::queue<rclcpp::experimental::executors::ExecutorEvent> event_queue_;
// Mutex to protect read/write access to the queue
mutable std::mutex mutex_;
// Variable used to notify when an event is added to the queue
std::condition_variable events_queue_cv_;
};
} // namespace executors
} // namespace experimental
} // namespace rclcpp
#endif // RCLCPP__EXPERIMENTAL__EXECUTORS__EVENTS_EXECUTOR__SIMPLE_EVENTS_QUEUE_HPP_

View File

@@ -454,8 +454,6 @@ private:
if (std::next(it) == subscription_ids.end()) {
// If this is the last subscription, give up ownership
subscription->provide_intra_process_data(std::move(message));
// Last message delivered, break from for loop
break;
} else {
// Copy the message since we have additional subscriptions to serve
Deleter deleter = message.get_deleter();
@@ -495,8 +493,6 @@ private:
if (std::next(it) == subscription_ids.end()) {
// If this is the last subscription, give up ownership
ros_message_subscription->provide_intra_process_message(std::move(message));
// Last message delivered, break from for loop
break;
} else {
// Copy the message since we have additional subscriptions to serve
Deleter deleter = message.get_deleter();

View File

@@ -109,22 +109,9 @@ public:
if (any_callback_.use_take_shared_method()) {
shared_msg = this->buffer_->consume_shared();
if (!shared_msg) {
return nullptr;
}
} else {
unique_msg = this->buffer_->consume_unique();
if (!unique_msg) {
return nullptr;
}
}
if (this->buffer_->has_data()) {
// If there is data still to be processed, indicate to the
// executor or waitset by triggering the guard condition.
this->trigger_guard_condition();
}
return std::static_pointer_cast<void>(
std::make_shared<std::pair<ConstMessageSharedPtr, MessageUniquePtr>>(
std::pair<ConstMessageSharedPtr, MessageUniquePtr>(
@@ -151,7 +138,7 @@ protected:
execute_impl(std::shared_ptr<void> & data)
{
if (!data) {
return;
throw std::runtime_error("'data' is empty");
}
rmw_message_info_t msg_info;

View File

@@ -31,8 +31,6 @@
#include "rclcpp/qos.hpp"
#include "rclcpp/type_support_decl.hpp"
#include "tracetools/tracetools.h"
namespace rclcpp
{
namespace experimental
@@ -93,10 +91,6 @@ public:
buffer_type,
qos_profile,
std::make_shared<Alloc>(subscribed_type_allocator_));
TRACEPOINT(
rclcpp_ipb_to_subscription,
static_cast<const void *>(buffer_.get()),
static_cast<const void *>(this));
}
bool

View File

@@ -1,553 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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__TIMERS_MANAGER_HPP_
#define RCLCPP__EXPERIMENTAL__TIMERS_MANAGER_HPP_
#include <algorithm>
#include <atomic>
#include <chrono>
#include <condition_variable>
#include <functional>
#include <memory>
#include <mutex>
#include <thread>
#include <utility>
#include <vector>
#include "rclcpp/context.hpp"
#include "rclcpp/timer.hpp"
namespace rclcpp
{
namespace experimental
{
/**
* @brief This class provides a way for storing and executing timer objects.
* It provides APIs to suit the needs of different applications and execution models.
* All public APIs provided by this class are thread-safe.
*
* Timers management
* This class provides APIs to add/remove timers to/from an internal storage.
* It keeps a list of weak pointers from added timers, and locks them only when
* they need to be executed or modified.
* Timers are kept ordered in a binary-heap priority queue.
* Calls to add/remove APIs will temporarily block the execution of the timers and
* will require to reorder the internal priority queue.
* Because of this, they have a not-negligible impact on the performance.
*
* Timers execution
* The most efficient use of this class consists in letting a TimersManager object
* to spawn a thread where timers are monitored and optionally executed.
* This can be controlled via the `start` and `stop` methods.
* Ready timers can either be executed or an on_ready_callback can be used to notify
* other entities that they are ready and need to be executed.
* Other APIs allow to directly execute a given timer.
*
* This class assumes that the `execute_callback()` API of the stored timers is never
* called by other entities, but it can only be called from here.
* If this assumption is not respected, the heap property may be invalidated,
* so timers may be executed out of order, without this object noticing it.
*
*/
class TimersManager
{
public:
RCLCPP_SMART_PTR_DEFINITIONS_NOT_COPYABLE(TimersManager)
/**
* @brief Construct a new TimersManager object
*
* @param context custom context to be used.
* Shared ownership of the context is held until destruction.
* @param on_ready_callback The timers on ready callback. The presence of this function
* indicates what to do when the TimersManager is running and a timer becomes ready.
* The TimersManager is considered "running" when the `start` method has been called.
* If it's callable, it will be invoked instead of the timer callback.
* If it's not callable, then the TimersManager will
* directly execute timers when they are ready.
* All the methods that execute a given timer (e.g. `execute_head_timer`
* or `execute_ready_timer`) without the TimersManager being `running`, i.e.
* without actually explicitly waiting for the timer to become ready, will ignore this
* callback.
*/
RCLCPP_PUBLIC
TimersManager(
std::shared_ptr<rclcpp::Context> context,
std::function<void(const rclcpp::TimerBase *)> on_ready_callback = nullptr);
/**
* @brief Destruct the TimersManager object making sure to stop thread and release memory.
*/
RCLCPP_PUBLIC
~TimersManager();
/**
* @brief Adds a new timer to the storage, maintaining weak ownership of it.
* Function is thread safe and it can be called regardless of the state of the timers thread.
*
* @param timer the timer to add.
* @throws std::invalid_argument if timer is a nullptr.
*/
RCLCPP_PUBLIC
void add_timer(rclcpp::TimerBase::SharedPtr timer);
/**
* @brief Remove a single timer from the object storage.
* Will do nothing if the timer was not being stored here.
* Function is thread safe and it can be called regardless of the state of the timers thread.
*
* @param timer the timer to remove.
*/
RCLCPP_PUBLIC
void remove_timer(rclcpp::TimerBase::SharedPtr timer);
/**
* @brief Remove all the timers stored in the object.
* Function is thread safe and it can be called regardless of the state of the timers thread.
*/
RCLCPP_PUBLIC
void clear();
/**
* @brief Starts a thread that takes care of executing the timers stored in this object.
* Function will throw an error if the timers thread was already running.
*/
RCLCPP_PUBLIC
void start();
/**
* @brief Stops the timers thread.
* Will do nothing if the timer thread was not running.
*/
RCLCPP_PUBLIC
void stop();
/**
* @brief Get the number of timers that are currently ready.
* This function is thread safe.
*
* @return size_t number of ready timers.
* @throws std::runtime_error if the timers thread was already running.
*/
RCLCPP_PUBLIC
size_t get_number_ready_timers();
/**
* @brief Executes head timer if ready.
* This function is thread safe.
* This function will try to execute the timer callback regardless of whether
* the TimersManager on_ready_callback was passed during construction.
*
* @return true if head timer was ready.
* @throws std::runtime_error if the timers thread was already running.
*/
RCLCPP_PUBLIC
bool execute_head_timer();
/**
* @brief Executes timer identified by its ID.
* This function is thread safe.
* This function will try to execute the timer callback regardless of whether
* the TimersManager on_ready_callback was passed during construction.
*
* @param timer_id the timer ID of the timer to execute
*/
RCLCPP_PUBLIC
void execute_ready_timer(const rclcpp::TimerBase * timer_id);
/**
* @brief Get the amount of time before the next timer triggers.
* This function is thread safe.
*
* @return std::chrono::nanoseconds to wait,
* the returned value could be negative if the timer is already expired
* or std::chrono::nanoseconds::max() if there are no timers stored in the object.
* @throws std::runtime_error if the timers thread was already running.
*/
RCLCPP_PUBLIC
std::chrono::nanoseconds get_head_timeout();
private:
RCLCPP_DISABLE_COPY(TimersManager)
using TimerPtr = rclcpp::TimerBase::SharedPtr;
using WeakTimerPtr = rclcpp::TimerBase::WeakPtr;
// Forward declaration
class TimersHeap;
/**
* @brief This class allows to store weak pointers to timers in a heap-like data structure.
* The root of the heap is the timer that triggers first.
* Since this class uses weak ownership, it is not guaranteed that it represents a valid heap
* at any point in time as timers could go out of scope, thus invalidating it.
* The "validate_and_lock" API allows to restore the heap property and also returns a locked version
* of the timers heap.
* This class is not thread safe and requires external mutexes to protect its usage.
*/
class WeakTimersHeap
{
public:
/**
* @brief Add a new timer to the heap. After the addition, the heap property is enforced.
*
* @param timer new timer to add.
* @return true if timer has been added, false if it was already there.
*/
bool add_timer(TimerPtr timer)
{
TimersHeap locked_heap = this->validate_and_lock();
bool added = locked_heap.add_timer(std::move(timer));
if (added) {
// Re-create the weak heap with the new timer added
this->store(locked_heap);
}
return added;
}
/**
* @brief Remove a timer from the heap. After the removal, the heap property is enforced.
*
* @param timer timer to remove.
* @return true if timer has been removed, false if it was not there.
*/
bool remove_timer(TimerPtr timer)
{
TimersHeap locked_heap = this->validate_and_lock();
bool removed = locked_heap.remove_timer(std::move(timer));
if (removed) {
// Re-create the weak heap with the timer removed
this->store(locked_heap);
}
return removed;
}
/**
* @brief Retrieve the timer identified by the key
* @param timer_id The ID of the timer to retrieve.
* @return TimerPtr if there's a timer associated with the ID, nullptr otherwise
*/
TimerPtr get_timer(const rclcpp::TimerBase * timer_id)
{
for (auto & weak_timer : weak_heap_) {
auto timer = weak_timer.lock();
if (timer.get() == timer_id) {
return timer;
}
}
return nullptr;
}
/**
* @brief Returns a const reference to the front element.
*/
const WeakTimerPtr & front() const
{
return weak_heap_.front();
}
/**
* @brief Returns whether the heap is empty or not.
*/
bool empty() const
{
return weak_heap_.empty();
}
/**
* @brief This function restores the current object as a valid heap
* and it returns a locked version of it.
* Timers that went out of scope are removed from the container.
* It is the only public API to access and manipulate the stored timers.
*
* @return TimersHeap owned timers corresponding to the current object
*/
TimersHeap validate_and_lock()
{
TimersHeap locked_heap;
bool any_timer_destroyed = false;
for (auto weak_timer : weak_heap_) {
auto timer = weak_timer.lock();
if (timer) {
// This timer is valid, so add it to the locked heap
// Note: we access friend private `owned_heap_` member field.
locked_heap.owned_heap_.push_back(std::move(timer));
} else {
// This timer went out of scope, so we don't add it to locked heap
// and we mark the corresponding flag.
// It's not needed to erase it from weak heap, as we are going to re-heapify.
// Note: we can't exit from the loop here, as we need to find all valid timers.
any_timer_destroyed = true;
}
}
// If a timer has gone out of scope, then the remaining elements do not represent
// a valid heap anymore. We need to re-heapify the timers heap.
if (any_timer_destroyed) {
locked_heap.heapify();
// Re-create the weak heap now that elements have been heapified again
this->store(locked_heap);
}
return locked_heap;
}
/**
* @brief This function allows to recreate the heap of weak pointers
* from an heap of owned pointers.
* It is required to be called after a locked TimersHeap generated from this object
* has been modified in any way (e.g. timers triggered, added, removed).
*
* @param heap timers heap to store as weak pointers
*/
void store(const TimersHeap & heap)
{
weak_heap_.clear();
// Note: we access friend private `owned_heap_` member field.
for (auto t : heap.owned_heap_) {
weak_heap_.push_back(t);
}
}
/**
* @brief Remove all timers from the heap.
*/
void clear()
{
weak_heap_.clear();
}
private:
std::vector<WeakTimerPtr> weak_heap_;
};
/**
* @brief This class is the equivalent of WeakTimersHeap but with ownership of the timers.
* It can be generated by locking the weak version.
* It provides operations to manipulate the heap.
* This class is not thread safe and requires external mutexes to protect its usage.
*/
class TimersHeap
{
public:
/**
* @brief Try to add a new timer to the heap.
* After the addition, the heap property is preserved.
* @param timer new timer to add.
* @return true if timer has been added, false if it was already there.
*/
bool add_timer(TimerPtr timer)
{
// Nothing to do if the timer is already stored here
auto it = std::find(owned_heap_.begin(), owned_heap_.end(), timer);
if (it != owned_heap_.end()) {
return false;
}
owned_heap_.push_back(std::move(timer));
std::push_heap(owned_heap_.begin(), owned_heap_.end(), timer_greater);
return true;
}
/**
* @brief Try to remove a timer from the heap.
* After the removal, the heap property is preserved.
* @param timer timer to remove.
* @return true if timer has been removed, false if it was not there.
*/
bool remove_timer(TimerPtr timer)
{
// Nothing to do if the timer is not stored here
auto it = std::find(owned_heap_.begin(), owned_heap_.end(), timer);
if (it == owned_heap_.end()) {
return false;
}
owned_heap_.erase(it);
this->heapify();
return true;
}
/**
* @brief Returns a reference to the front element.
* @return reference to front element.
*/
TimerPtr & front()
{
return owned_heap_.front();
}
/**
* @brief Returns a const reference to the front element.
* @return const reference to front element.
*/
const TimerPtr & front() const
{
return owned_heap_.front();
}
/**
* @brief Returns whether the heap is empty or not.
* @return true if the heap is empty.
*/
bool empty() const
{
return owned_heap_.empty();
}
/**
* @brief Returns the size of the heap.
* @return the number of valid timers in the heap.
*/
size_t size() const
{
return owned_heap_.size();
}
/**
* @brief Get the number of timers that are currently ready.
* @return size_t number of ready timers.
*/
size_t get_number_ready_timers() const
{
size_t ready_timers = 0;
for (TimerPtr t : owned_heap_) {
if (t->is_ready()) {
ready_timers++;
}
}
return ready_timers;
}
/**
* @brief Restore a valid heap after the root value has been replaced (e.g. timer triggered).
*/
void heapify_root()
{
// The following code is a more efficient version than doing
// pop_heap, pop_back, push_back, push_heap
// as it removes the need for the last push_heap
// Push the modified element (i.e. the current root) at the bottom of the heap
owned_heap_.push_back(owned_heap_[0]);
// Exchange first and last-1 elements and reheapify
std::pop_heap(owned_heap_.begin(), owned_heap_.end(), timer_greater);
// Remove last element
owned_heap_.pop_back();
}
/**
* @brief Completely restores the structure to a valid heap
*/
void heapify()
{
std::make_heap(owned_heap_.begin(), owned_heap_.end(), timer_greater);
}
/**
* @brief Helper function to clear the "on_reset_callback" on all associated timers.
*/
void clear_timers_on_reset_callbacks()
{
for (TimerPtr & t : owned_heap_) {
t->clear_on_reset_callback();
}
}
/**
* @brief Friend declaration to allow the `validate_and_lock()` function to access the
* underlying heap container
*/
friend TimersHeap WeakTimersHeap::validate_and_lock();
/**
* @brief Friend declaration to allow the `store()` function to access the
* underlying heap container
*/
friend void WeakTimersHeap::store(const TimersHeap & heap);
private:
/**
* @brief Comparison function between timers.
* @return true if `a` triggers after `b`.
*/
static bool timer_greater(TimerPtr a, TimerPtr b)
{
// TODO(alsora): this can cause an error if timers are using different clocks
return a->time_until_trigger() > b->time_until_trigger();
}
std::vector<TimerPtr> owned_heap_;
};
/**
* @brief Implements a loop that keeps executing ready timers.
* This function is executed in the timers thread.
*/
void run_timers();
/**
* @brief Get the amount of time before the next timer triggers.
* This function is not thread safe, acquire a mutex before calling it.
*
* @return std::chrono::nanoseconds to wait,
* the returned value could be negative if the timer is already expired
* or std::chrono::nanoseconds::max() if the heap is empty.
* This function is not thread safe, acquire the timers_mutex_ before calling it.
*/
std::chrono::nanoseconds get_head_timeout_unsafe();
/**
* @brief Executes all the timers currently ready when the function is invoked
* while keeping the heap correctly sorted.
* This function is not thread safe, acquire the timers_mutex_ before calling it.
*/
void execute_ready_timers_unsafe();
// Callback to be called when timer is ready
std::function<void(const rclcpp::TimerBase *)> on_ready_callback_ = nullptr;
// Thread used to run the timers execution task
std::thread timers_thread_;
// Protects access to timers
std::mutex timers_mutex_;
// Protects access to stop()
std::mutex stop_mutex_;
// Notifies the timers thread whenever timers are added/removed
std::condition_variable timers_cv_;
// Flag used as predicate by timers_cv_ that denotes one or more timers being added/removed
bool timers_updated_ {false};
// Indicates whether the timers thread is currently running or not
std::atomic<bool> running_ {false};
// Parent context used to understand if ROS is still active
std::shared_ptr<rclcpp::Context> context_;
// Timers heap storage with weak ownership
WeakTimersHeap weak_timers_heap_;
};
} // namespace experimental
} // namespace rclcpp
#endif // RCLCPP__EXPERIMENTAL__TIMERS_MANAGER_HPP_

View File

@@ -78,12 +78,38 @@ public:
node_base,
topic_name,
*rclcpp::get_typesupport_handle(topic_type, "rosidl_typesupport_cpp", *ts_lib),
options.template to_rcl_publisher_options<rclcpp::SerializedMessage>(qos),
// NOTE(methylDragon): Passing these args separately is necessary for event binding
options.event_callbacks,
options.use_default_callbacks),
options.template to_rcl_publisher_options<rclcpp::SerializedMessage>(qos)),
ts_lib_(ts_lib)
{}
{
// This is unfortunately duplicated with the code in publisher.hpp.
// TODO(nnmm): Deduplicate by moving this into PublisherBase.
if (options.event_callbacks.deadline_callback) {
this->add_event_handler(
options.event_callbacks.deadline_callback,
RCL_PUBLISHER_OFFERED_DEADLINE_MISSED);
}
if (options.event_callbacks.liveliness_callback) {
this->add_event_handler(
options.event_callbacks.liveliness_callback,
RCL_PUBLISHER_LIVELINESS_LOST);
}
if (options.event_callbacks.incompatible_qos_callback) {
this->add_event_handler(
options.event_callbacks.incompatible_qos_callback,
RCL_PUBLISHER_OFFERED_INCOMPATIBLE_QOS);
} else if (options.use_default_callbacks) {
// Register default callback when not specified
try {
this->add_event_handler(
[this](QOSOfferedIncompatibleQoSInfo & info) {
this->default_incompatible_qos_callback(info);
},
RCL_PUBLISHER_OFFERED_INCOMPATIBLE_QOS);
} catch (UnsupportedEventTypeException & /*exc*/) {
// pass
}
}
}
RCLCPP_PUBLIC
virtual ~GenericPublisher() = default;

View File

@@ -81,13 +81,45 @@ public:
node_base,
*rclcpp::get_typesupport_handle(topic_type, "rosidl_typesupport_cpp", *ts_lib),
topic_name,
options.to_rcl_subscription_options(qos),
options.event_callbacks,
options.use_default_callbacks,
DeliveredMessageKind::SERIALIZED_MESSAGE),
options.template to_rcl_subscription_options<rclcpp::SerializedMessage>(qos),
true),
callback_(callback),
ts_lib_(ts_lib)
{}
{
// This is unfortunately duplicated with the code in subscription.hpp.
// TODO(nnmm): Deduplicate by moving this into SubscriptionBase.
if (options.event_callbacks.deadline_callback) {
this->add_event_handler(
options.event_callbacks.deadline_callback,
RCL_SUBSCRIPTION_REQUESTED_DEADLINE_MISSED);
}
if (options.event_callbacks.liveliness_callback) {
this->add_event_handler(
options.event_callbacks.liveliness_callback,
RCL_SUBSCRIPTION_LIVELINESS_CHANGED);
}
if (options.event_callbacks.incompatible_qos_callback) {
this->add_event_handler(
options.event_callbacks.incompatible_qos_callback,
RCL_SUBSCRIPTION_REQUESTED_INCOMPATIBLE_QOS);
} else if (options.use_default_callbacks) {
// Register default callback when not specified
try {
this->add_event_handler(
[this](QOSRequestedIncompatibleQoSInfo & info) {
this->default_incompatible_qos_callback(info);
},
RCL_SUBSCRIPTION_REQUESTED_INCOMPATIBLE_QOS);
} catch (UnsupportedEventTypeException & /*exc*/) {
// pass
}
}
if (options.event_callbacks.message_lost_callback) {
this->add_event_handler(
options.event_callbacks.message_lost_callback,
RCL_SUBSCRIPTION_MESSAGE_LOST);
}
}
RCLCPP_PUBLIC
virtual ~GenericSubscription() = default;
@@ -123,31 +155,6 @@ public:
RCLCPP_PUBLIC
void return_serialized_message(std::shared_ptr<rclcpp::SerializedMessage> & message) override;
// DYNAMIC TYPE ==================================================================================
RCLCPP_PUBLIC
rclcpp::dynamic_typesupport::DynamicMessageType::SharedPtr get_shared_dynamic_message_type()
override;
RCLCPP_PUBLIC
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr get_shared_dynamic_message() override;
RCLCPP_PUBLIC
rclcpp::dynamic_typesupport::DynamicSerializationSupport::SharedPtr
get_shared_dynamic_serialization_support() override;
RCLCPP_PUBLIC
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr create_dynamic_message() override;
RCLCPP_PUBLIC
void return_dynamic_message(
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message) override;
RCLCPP_PUBLIC
void handle_dynamic_message(
const rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message,
const rclcpp::MessageInfo & message_info) override;
private:
RCLCPP_DISABLE_COPY(GenericSubscription)

View File

@@ -17,7 +17,6 @@
#include <memory>
#include <string>
#include <utility>
#include "rclcpp/visibility_control.hpp"
@@ -123,7 +122,6 @@ private:
: name_(new std::string(name)) {}
std::shared_ptr<const std::string> name_;
std::shared_ptr<std::pair<std::string, std::string>> logger_sublogger_pairname_ = nullptr;
public:
RCLCPP_PUBLIC
@@ -159,7 +157,13 @@ public:
*/
RCLCPP_PUBLIC
Logger
get_child(const std::string & suffix);
get_child(const std::string & suffix)
{
if (!name_) {
return Logger();
}
return Logger(*name_ + "." + suffix);
}
/// Set level for current logger.
/**
@@ -170,24 +174,6 @@ public:
RCLCPP_PUBLIC
void
set_level(Level level);
/// Get effective level for current logger.
/**
* The effective level is determined as the severity level of
* the logger if it is set, otherwise it is the first specified severity
* level of the logger's ancestors, starting with its closest ancestor.
* The ancestor hierarchy is signified by logger names being separated by dots:
* a logger named `x` is an ancestor of `x.y`, and both `x` and `x.y` are
* ancestors of `x.y.z`, etc.
* If the level has not been set for the logger nor any of its
* ancestors, the default level is used.
*
* \throws rclcpp::exceptions::RCLError if any error happens.
* \return Level for the current logger.
*/
RCLCPP_PUBLIC
Level
get_effective_level() const;
};
} // namespace rclcpp

View File

@@ -777,7 +777,7 @@ public:
*/
RCLCPP_PUBLIC
bool
get_parameter(const std::string & name, rclcpp::Parameter & parameter) const;
get_parameter(const std::string & name, rclcpp::Parameter & parameter) const noexcept;
/// Get the value of a parameter by the given name, and return true if it was set.
/**

View File

@@ -1,208 +0,0 @@
// Copyright 2022 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__NODE_INTERFACES__DETAIL__NODE_INTERFACES_HELPERS_HPP_
#define RCLCPP__NODE_INTERFACES__DETAIL__NODE_INTERFACES_HELPERS_HPP_
#include <memory>
#include <tuple>
#include <type_traits>
#include <utility>
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
{
namespace node_interfaces
{
namespace detail
{
// Support and Helper template classes for the NodeInterfaces class.
template<typename NodeT, typename ... Ts>
std::tuple<std::shared_ptr<Ts>...>
init_tuple(NodeT & n);
/// Stores the interfaces in a tuple, provides constructors, and getters.
template<typename ... InterfaceTs>
struct NodeInterfacesStorage
{
template<typename NodeT>
NodeInterfacesStorage(NodeT & node) // NOLINT(runtime/explicit)
: interfaces_(init_tuple<decltype(node), InterfaceTs ...>(node))
{}
NodeInterfacesStorage()
: interfaces_()
{}
explicit NodeInterfacesStorage(std::shared_ptr<InterfaceTs>... args)
: interfaces_(args ...)
{}
/// Individual Node Interface non-const getter.
template<typename NodeInterfaceT>
std::shared_ptr<NodeInterfaceT>
get()
{
static_assert(
(std::is_same_v<NodeInterfaceT, InterfaceTs>|| ...),
"NodeInterfaces class does not contain given NodeInterfaceT");
return std::get<std::shared_ptr<NodeInterfaceT>>(interfaces_);
}
/// Individual Node Interface const getter.
template<typename NodeInterfaceT>
std::shared_ptr<const NodeInterfaceT>
get() const
{
static_assert(
(std::is_same_v<NodeInterfaceT, InterfaceTs>|| ...),
"NodeInterfaces class does not contain given NodeInterfaceT");
return std::get<std::shared_ptr<NodeInterfaceT>>(interfaces_);
}
protected:
std::tuple<std::shared_ptr<InterfaceTs>...> interfaces_;
};
/// Prototype of NodeInterfacesSupports.
/**
* Should read NodeInterfacesSupports<..., T, ...> as "NodeInterfaces supports T", and
* if NodeInterfacesSupport is specialized for T, the is_supported should be
* set to std::true_type, but by default it is std::false_type, which will
* lead to a compiler error when trying to use T with NodeInterfaces.
*/
template<typename StorageClassT, typename ... Ts>
struct NodeInterfacesSupports;
/// Prototype of NodeInterfacesSupportCheck template meta-function.
/**
* This meta-function checks that all the types given are supported,
* throwing a more human-readable error if an unsupported type is used.
*/
template<typename StorageClassT, typename ... InterfaceTs>
struct NodeInterfacesSupportCheck;
/// Iterating specialization that ensures classes are supported and inherited.
template<typename StorageClassT, typename NextInterfaceT, typename ... RemainingInterfaceTs>
struct NodeInterfacesSupportCheck<StorageClassT, NextInterfaceT, RemainingInterfaceTs ...>
: public NodeInterfacesSupportCheck<StorageClassT, RemainingInterfaceTs ...>
{
static_assert(
NodeInterfacesSupports<StorageClassT, NextInterfaceT>::is_supported::value,
"given NodeInterfaceT is not supported by rclcpp::node_interfaces::NodeInterfaces");
};
/// Terminating case when there are no more "RemainingInterfaceTs".
template<typename StorageClassT>
struct NodeInterfacesSupportCheck<StorageClassT>
{};
/// Default specialization, needs to be specialized for each supported interface.
template<typename StorageClassT, typename ... RemainingInterfaceTs>
struct NodeInterfacesSupports
{
// Specializations need to set this to std::true_type in addition to other interfaces.
using is_supported = std::false_type;
};
/// Terminating specialization of NodeInterfacesSupports.
template<typename StorageClassT>
struct NodeInterfacesSupports<StorageClassT>
: public StorageClassT
{
/// Perfect forwarding constructor to get arguments down to StorageClassT.
template<typename ... ArgsT>
explicit NodeInterfacesSupports(ArgsT && ... args)
: StorageClassT(std::forward<ArgsT>(args) ...)
{}
};
// Helper functions to initialize the tuple in NodeInterfaces.
template<typename StorageClassT, typename ElementT, typename TupleT, typename NodeT>
void
init_element(TupleT & t, NodeT & n)
{
std::get<std::shared_ptr<ElementT>>(t) =
NodeInterfacesSupports<StorageClassT, ElementT>::get_from_node_like(n);
}
template<typename NodeT, typename ... Ts>
std::tuple<std::shared_ptr<Ts>...>
init_tuple(NodeT & n)
{
using StorageClassT = NodeInterfacesStorage<Ts ...>;
std::tuple<std::shared_ptr<Ts>...> t;
(init_element<StorageClassT, Ts>(t, n), ...);
return t;
}
/// Macro for creating specializations with less boilerplate.
/**
* You can use this macro to add support for your interface class if:
*
* - The standard getter is get_node_{NodeInterfaceName}_interface(), and
* - the getter returns a non-const shared_ptr<{NodeInterfaceType}>
*
* Examples of using this can be seen in the standard node interface headers
* in rclcpp, e.g. rclcpp/node_interfaces/node_base_interface.hpp has:
*
* RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeBaseInterface, base)
*
* If your interface has a non-standard getter, or you want to instrument it or
* something like that, then you'll need to create your own specialization of
* the NodeInterfacesSupports struct without this macro.
*/
#define RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(NodeInterfaceType, NodeInterfaceName) \
namespace rclcpp::node_interfaces::detail { \
template<typename StorageClassT, typename ... RemainingInterfaceTs> \
struct NodeInterfacesSupports< \
StorageClassT, \
NodeInterfaceType, \
RemainingInterfaceTs ...> \
: public NodeInterfacesSupports<StorageClassT, RemainingInterfaceTs ...> \
{ \
using is_supported = std::true_type; \
\
template<typename NodeT> \
static \
std::shared_ptr<NodeInterfaceType> \
get_from_node_like(NodeT & node_like) \
{ \
return node_like.get_node_ ## NodeInterfaceName ## _interface(); \
} \
\
/* Perfect forwarding constructor to get arguments down to StorageClassT (eventually). */ \
template<typename ... ArgsT> \
explicit NodeInterfacesSupports(ArgsT && ... args) \
: NodeInterfacesSupports<StorageClassT, RemainingInterfaceTs ...>( \
std::forward<ArgsT>(args) ...) \
{} \
\
std::shared_ptr<NodeInterfaceType> \
get_node_ ## NodeInterfaceName ## _interface() \
{ \
return StorageClassT::template get<NodeInterfaceType>(); \
} \
}; \
} // namespace rclcpp::node_interfaces::detail
} // namespace detail
} // namespace node_interfaces
} // namespace rclcpp
#endif // RCLCPP__NODE_INTERFACES__DETAIL__NODE_INTERFACES_HELPERS_HPP_

View File

@@ -121,19 +121,10 @@ public:
std::atomic_bool &
get_associated_with_executor_atomic() override;
[[deprecated("Use get_shared_notify_guard_condition or trigger_notify_guard_condition instead")]]
RCLCPP_PUBLIC
rclcpp::GuardCondition &
get_notify_guard_condition() override;
RCLCPP_PUBLIC
rclcpp::GuardCondition::SharedPtr
get_shared_notify_guard_condition() override;
RCLCPP_PUBLIC
void
trigger_notify_guard_condition() override;
RCLCPP_PUBLIC
bool
get_use_intra_process_default() const override;
@@ -162,7 +153,7 @@ private:
/// Guard condition for notifying the Executor of changes to this node.
mutable std::recursive_mutex notify_guard_condition_mutex_;
std::shared_ptr<rclcpp::GuardCondition> notify_guard_condition_;
rclcpp::GuardCondition notify_guard_condition_;
bool notify_guard_condition_is_valid_;
};

View File

@@ -26,7 +26,6 @@
#include "rclcpp/context.hpp"
#include "rclcpp/guard_condition.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
@@ -148,33 +147,13 @@ public:
/**
* For example, this should be notified when a publisher is added or removed.
*
* \return the GuardCondition if it is valid, else throw runtime error
* \return the GuardCondition if it is valid, else thow runtime error
*/
RCLCPP_PUBLIC
virtual
rclcpp::GuardCondition &
get_notify_guard_condition() = 0;
/// Return a guard condition that should be notified when the internal node state changes.
/**
* For example, this should be notified when a publisher is added or removed.
*
* \return the GuardCondition if it is valid, else nullptr
*/
RCLCPP_PUBLIC
virtual
rclcpp::GuardCondition::SharedPtr
get_shared_notify_guard_condition() = 0;
/// Trigger the guard condition that notifies of internal node state changes.
/**
* For example, this should be notified when a publisher is added or removed.
*/
RCLCPP_PUBLIC
virtual
void
trigger_notify_guard_condition() = 0;
/// Return the default preference for using intra process communication.
RCLCPP_PUBLIC
virtual
@@ -198,6 +177,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeBaseInterface, base)
#endif // RCLCPP__NODE_INTERFACES__NODE_BASE_INTERFACE_HPP_

View File

@@ -15,7 +15,6 @@
#ifndef RCLCPP__NODE_INTERFACES__NODE_CLOCK_HPP_
#define RCLCPP__NODE_INTERFACES__NODE_CLOCK_HPP_
#include "rcl/time.h"
#include "rclcpp/clock.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/node_base_interface.hpp"
@@ -43,8 +42,7 @@ public:
rclcpp::node_interfaces::NodeTopicsInterface::SharedPtr node_topics,
rclcpp::node_interfaces::NodeGraphInterface::SharedPtr node_graph,
rclcpp::node_interfaces::NodeServicesInterface::SharedPtr node_services,
rclcpp::node_interfaces::NodeLoggingInterface::SharedPtr node_logging,
rcl_clock_type_t clock_type);
rclcpp::node_interfaces::NodeLoggingInterface::SharedPtr node_logging);
RCLCPP_PUBLIC
virtual
@@ -69,7 +67,7 @@ private:
rclcpp::node_interfaces::NodeServicesInterface::SharedPtr node_services_;
rclcpp::node_interfaces::NodeLoggingInterface::SharedPtr node_logging_;
rclcpp::Clock::SharedPtr clock_;
rclcpp::Clock::SharedPtr ros_clock_;
};
} // namespace node_interfaces

View File

@@ -17,7 +17,6 @@
#include "rclcpp/clock.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
@@ -51,6 +50,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeClockInterface, clock)
#endif // RCLCPP__NODE_INTERFACES__NODE_CLOCK_INTERFACE_HPP_

View File

@@ -29,7 +29,6 @@
#include "rclcpp/event.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/visibility_control.hpp"
@@ -57,8 +56,7 @@ public:
node_namespace_(info.node_namespace),
topic_type_(info.topic_type),
endpoint_type_(static_cast<rclcpp::EndpointType>(info.endpoint_type)),
qos_profile_({info.qos_profile.history, info.qos_profile.depth}, info.qos_profile),
topic_type_hash_(info.topic_type_hash)
qos_profile_({info.qos_profile.history, info.qos_profile.depth}, info.qos_profile)
{
std::copy(info.endpoint_gid, info.endpoint_gid + RMW_GID_STORAGE_SIZE, endpoint_gid_.begin());
}
@@ -123,16 +121,6 @@ public:
const rclcpp::QoS &
qos_profile() const;
/// Get a mutable reference to the type hash of the topic endpoint.
RCLCPP_PUBLIC
rosidl_type_hash_t &
topic_type_hash();
/// Get a const reference to the type hash of the topic endpoint.
RCLCPP_PUBLIC
const rosidl_type_hash_t &
topic_type_hash() const;
private:
std::string node_name_;
std::string node_namespace_;
@@ -140,7 +128,6 @@ private:
rclcpp::EndpointType endpoint_type_;
std::array<uint8_t, RMW_GID_STORAGE_SIZE> endpoint_gid_;
rclcpp::QoS qos_profile_;
rosidl_type_hash_t topic_type_hash_;
};
namespace node_interfaces
@@ -395,6 +382,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeGraphInterface, graph)
#endif // RCLCPP__NODE_INTERFACES__NODE_GRAPH_INTERFACE_HPP_

View File

@@ -1,164 +0,0 @@
// Copyright 2022 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__NODE_INTERFACES__NODE_INTERFACES_HPP_
#define RCLCPP__NODE_INTERFACES__NODE_INTERFACES_HPP_
#include <memory>
#include "rclcpp/detail/template_unique.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#define ALL_RCLCPP_NODE_INTERFACES \
rclcpp::node_interfaces::NodeBaseInterface, \
rclcpp::node_interfaces::NodeClockInterface, \
rclcpp::node_interfaces::NodeGraphInterface, \
rclcpp::node_interfaces::NodeLoggingInterface, \
rclcpp::node_interfaces::NodeParametersInterface, \
rclcpp::node_interfaces::NodeServicesInterface, \
rclcpp::node_interfaces::NodeTimeSourceInterface, \
rclcpp::node_interfaces::NodeTimersInterface, \
rclcpp::node_interfaces::NodeTopicsInterface, \
rclcpp::node_interfaces::NodeWaitablesInterface
namespace rclcpp
{
namespace node_interfaces
{
/// A helper class for aggregating node interfaces.
template<typename ... InterfaceTs>
class NodeInterfaces
: public detail::NodeInterfacesSupportCheck<
detail::NodeInterfacesStorage<InterfaceTs ...>,
InterfaceTs ...
>,
public detail::NodeInterfacesSupports<
detail::NodeInterfacesStorage<InterfaceTs ...>,
InterfaceTs ...
>
{
static_assert(
0 != sizeof ...(InterfaceTs),
"must provide at least one interface as a template argument");
static_assert(
rclcpp::detail::template_unique_v<InterfaceTs ...>,
"must provide unique template parameters");
using NodeInterfacesSupportsT = detail::NodeInterfacesSupports<
detail::NodeInterfacesStorage<InterfaceTs ...>,
InterfaceTs ...
>;
public:
/// Create a new NodeInterfaces object using the given node-like object's interfaces.
/**
* Specify which interfaces you need by passing them as template parameters.
*
* This allows you to aggregate interfaces from different sources together to pass as a single
* aggregate object to any functions that take node interfaces or node-likes, without needing to
* templatize that function.
*
* You may also use this constructor to create a NodeInterfaces that contains a subset of
* another NodeInterfaces' interfaces.
*
* Finally, this class supports implicit conversion from node-like objects, allowing you to
* directly pass a node-like to a function that takes a NodeInterfaces object.
*
* Usage examples:
* ```cpp
* // Suppose we have some function:
* void fn(NodeInterfaces<NodeBaseInterface, NodeClockInterface> interfaces);
*
* // Then we can, explicitly:
* rclcpp::Node node("some_node");
* auto ni = NodeInterfaces<NodeBaseInterface, NodeClockInterface>(node);
* fn(ni);
*
* // But also:
* fn(node);
*
* // Subsetting a NodeInterfaces object also works!
* auto ni_base = NodeInterfaces<NodeBaseInterface>(ni);
*
* // Or aggregate them (you could aggregate interfaces from disparate node-likes)
* auto ni_aggregated = NodeInterfaces<NodeBaseInterface, NodeClockInterface>(
* node->get_node_base_interface(),
* node->get_node_clock_interface()
* )
*
* // And then to access the interfaces:
* // Get with get<>
* auto base = ni.get<NodeBaseInterface>();
*
* // Or the appropriate getter
* auto clock = ni.get_clock_interface();
* ```
*
* You may use any of the standard node interfaces that come with rclcpp:
* - rclcpp::node_interfaces::NodeBaseInterface
* - rclcpp::node_interfaces::NodeClockInterface
* - rclcpp::node_interfaces::NodeGraphInterface
* - rclcpp::node_interfaces::NodeLoggingInterface
* - rclcpp::node_interfaces::NodeParametersInterface
* - rclcpp::node_interfaces::NodeServicesInterface
* - rclcpp::node_interfaces::NodeTimeSourceInterface
* - rclcpp::node_interfaces::NodeTimersInterface
* - rclcpp::node_interfaces::NodeTopicsInterface
* - rclcpp::node_interfaces::NodeWaitablesInterface
*
* Or you use custom interfaces as long as you make a template specialization
* of the rclcpp::node_interfaces::detail::NodeInterfacesSupport struct using
* the RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT macro.
*
* Usage example:
* ```RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeBaseInterface, base)```
*
* If you choose not to use the helper macro, then you can specialize the
* template yourself, but you must:
*
* - Provide a template specialization of the get_from_node_like method that gets the interface
* from any node-like that stores the interface, using the node-like's getter
* - Designate the is_supported type as std::true_type using a using directive
* - Provide any number of getter methods to be used to obtain the interface with the
* NodeInterface object, noting that the getters of the storage class will apply to all
* supported interfaces.
* - The getter method names should not clash in name with any other interface getter
* specializations if those other interfaces are meant to be aggregated in the same
* NodeInterfaces object.
*
* \param[in] node Node-like object from which to get the node interfaces
*/
template<typename NodeT>
NodeInterfaces(NodeT & node) // NOLINT(runtime/explicit)
: NodeInterfacesSupportsT(node)
{}
// Create a NodeInterfaces object with no bound interfaces
NodeInterfaces()
: NodeInterfacesSupportsT()
{}
explicit NodeInterfaces(std::shared_ptr<InterfaceTs>... args)
: NodeInterfacesSupportsT(args ...)
{}
};
} // namespace node_interfaces
} // namespace rclcpp
#endif // RCLCPP__NODE_INTERFACES__NODE_INTERFACES_HPP_

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@@ -19,7 +19,6 @@
#include "rclcpp/logger.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
@@ -59,6 +58,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeLoggingInterface, logging)
#endif // RCLCPP__NODE_INTERFACES__NODE_LOGGING_INTERFACE_HPP_

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@@ -162,7 +162,7 @@ public:
bool
get_parameter(
const std::string & name,
rclcpp::Parameter & parameter) const override;
rclcpp::Parameter & parameter) const noexcept override;
RCLCPP_PUBLIC
bool

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@@ -25,7 +25,6 @@
#include "rcl_interfaces/msg/set_parameters_result.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/parameter.hpp"
#include "rclcpp/visibility_control.hpp"
@@ -177,7 +176,7 @@ public:
bool
get_parameter(
const std::string & name,
rclcpp::Parameter & parameter) const = 0;
rclcpp::Parameter & parameter) const noexcept = 0;
/// Get all parameters that have the specified prefix into the parameters map.
/*
@@ -277,6 +276,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeParametersInterface, parameters)
#endif // RCLCPP__NODE_INTERFACES__NODE_PARAMETERS_INTERFACE_HPP_

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@@ -20,7 +20,6 @@
#include "rclcpp/callback_group.hpp"
#include "rclcpp/client.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/service.hpp"
#include "rclcpp/visibility_control.hpp"
@@ -63,6 +62,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeServicesInterface, services)
#endif // RCLCPP__NODE_INTERFACES__NODE_SERVICES_INTERFACE_HPP_

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@@ -16,7 +16,6 @@
#define RCLCPP__NODE_INTERFACES__NODE_TIME_SOURCE_INTERFACE_HPP_
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/visibility_control.hpp"
namespace rclcpp
@@ -38,6 +37,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeTimeSourceInterface, time_source)
#endif // RCLCPP__NODE_INTERFACES__NODE_TIME_SOURCE_INTERFACE_HPP_

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@@ -17,7 +17,6 @@
#include "rclcpp/callback_group.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/timer.hpp"
#include "rclcpp/visibility_control.hpp"
@@ -48,6 +47,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeTimersInterface, timers)
#endif // RCLCPP__NODE_INTERFACES__NODE_TIMERS_INTERFACE_HPP_

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@@ -22,7 +22,6 @@
#include "rclcpp/callback_group.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/node_interfaces/node_base_interface.hpp"
#include "rclcpp/node_interfaces/node_timers_interface.hpp"
#include "rclcpp/publisher.hpp"
@@ -96,6 +95,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeTopicsInterface, topics)
#endif // RCLCPP__NODE_INTERFACES__NODE_TOPICS_INTERFACE_HPP_

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@@ -17,7 +17,6 @@
#include "rclcpp/callback_group.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/node_interfaces/detail/node_interfaces_helpers.hpp"
#include "rclcpp/visibility_control.hpp"
#include "rclcpp/waitable.hpp"
@@ -55,6 +54,4 @@ public:
} // namespace node_interfaces
} // namespace rclcpp
RCLCPP_NODE_INTERFACE_HELPERS_SUPPORT(rclcpp::node_interfaces::NodeWaitablesInterface, waitables)
#endif // RCLCPP__NODE_INTERFACES__NODE_WAITABLES_INTERFACE_HPP_

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@@ -19,7 +19,6 @@
#include <string>
#include <vector>
#include "rcl/time.h"
#include "rcl/node_options.h"
#include "rclcpp/context.hpp"
#include "rclcpp/contexts/default_context.hpp"
@@ -47,7 +46,6 @@ public:
* - enable_topic_statistics = false
* - start_parameter_services = true
* - start_parameter_event_publisher = true
* - clock_type = RCL_ROS_TIME
* - clock_qos = rclcpp::ClockQoS()
* - use_clock_thread = true
* - rosout_qos = rclcpp::RosoutQoS()
@@ -248,19 +246,6 @@ public:
NodeOptions &
start_parameter_event_publisher(bool start_parameter_event_publisher);
/// Return a reference to the clock type.
RCLCPP_PUBLIC
const rcl_clock_type_t &
clock_type() const;
/// Set the clock type.
/**
* The clock type to be used by the node.
*/
RCLCPP_PUBLIC
NodeOptions &
clock_type(const rcl_clock_type_t & clock_type);
/// Return a reference to the clock QoS.
RCLCPP_PUBLIC
const rclcpp::QoS &
@@ -415,8 +400,6 @@ private:
bool start_parameter_event_publisher_ {true};
rcl_clock_type_t clock_type_ {RCL_ROS_TIME};
rclcpp::QoS clock_qos_ = rclcpp::ClockQoS();
bool use_clock_thread_ {true};

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@@ -131,16 +131,40 @@ public:
node_base,
topic,
rclcpp::get_message_type_support_handle<MessageT>(),
options.template to_rcl_publisher_options<MessageT>(qos),
// NOTE(methylDragon): Passing these args separately is necessary for event binding
options.event_callbacks,
options.use_default_callbacks),
options.template to_rcl_publisher_options<MessageT>(qos)),
options_(options),
published_type_allocator_(*options.get_allocator()),
ros_message_type_allocator_(*options.get_allocator())
{
allocator::set_allocator_for_deleter(&published_type_deleter_, &published_type_allocator_);
allocator::set_allocator_for_deleter(&ros_message_type_deleter_, &ros_message_type_allocator_);
if (options_.event_callbacks.deadline_callback) {
this->add_event_handler(
options_.event_callbacks.deadline_callback,
RCL_PUBLISHER_OFFERED_DEADLINE_MISSED);
}
if (options_.event_callbacks.liveliness_callback) {
this->add_event_handler(
options_.event_callbacks.liveliness_callback,
RCL_PUBLISHER_LIVELINESS_LOST);
}
if (options_.event_callbacks.incompatible_qos_callback) {
this->add_event_handler(
options_.event_callbacks.incompatible_qos_callback,
RCL_PUBLISHER_OFFERED_INCOMPATIBLE_QOS);
} else if (options_.use_default_callbacks) {
// Register default callback when not specified
try {
this->add_event_handler(
[this](QOSOfferedIncompatibleQoSInfo & info) {
this->default_incompatible_qos_callback(info);
},
RCL_PUBLISHER_OFFERED_INCOMPATIBLE_QOS);
} catch (UnsupportedEventTypeException & /*exc*/) {
// pass
}
}
// Setup continues in the post construction method, post_init_setup().
}
@@ -381,6 +405,10 @@ public:
if (!loaned_msg.is_valid()) {
throw std::runtime_error("loaned message is not valid");
}
if (intra_process_is_enabled_) {
// TODO(Karsten1987): support loaned message passed by intraprocess
throw std::runtime_error("storing loaned messages in intra process is not supported yet");
}
// verify that publisher supports loaned messages
// TODO(Karsten1987): This case separation has to be done in rclcpp
@@ -394,7 +422,7 @@ public:
} else {
// we don't release the ownership, let the middleware copy the ros message
// and thus the destructor of rclcpp::LoanedMessage cleans up the memory.
this->publish(loaned_msg.get());
this->do_inter_process_publish(loaned_msg.get());
}
}
@@ -484,10 +512,6 @@ protected:
if (!msg) {
throw std::runtime_error("cannot publish msg which is a null pointer");
}
TRACEPOINT(
rclcpp_intra_publish,
static_cast<const void *>(publisher_handle_.get()),
msg.get());
ipm->template do_intra_process_publish<PublishedType, ROSMessageType, AllocatorT>(
intra_process_publisher_id_,
@@ -506,10 +530,6 @@ protected:
if (!msg) {
throw std::runtime_error("cannot publish msg which is a null pointer");
}
TRACEPOINT(
rclcpp_intra_publish,
static_cast<const void *>(publisher_handle_.get()),
msg.get());
ipm->template do_intra_process_publish<ROSMessageType, ROSMessageType, AllocatorT>(
intra_process_publisher_id_,
@@ -529,10 +549,6 @@ protected:
if (!msg) {
throw std::runtime_error("cannot publish msg which is a null pointer");
}
TRACEPOINT(
rclcpp_intra_publish,
static_cast<const void *>(publisher_handle_.get()),
msg.get());
return ipm->template do_intra_process_publish_and_return_shared<ROSMessageType, ROSMessageType,
AllocatorT>(

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@@ -33,7 +33,7 @@
#include "rclcpp/macros.hpp"
#include "rclcpp/network_flow_endpoint.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/event_handler.hpp"
#include "rclcpp/qos_event.hpp"
#include "rclcpp/type_support_decl.hpp"
#include "rclcpp/visibility_control.hpp"
#include "rcpputils/time.hpp"
@@ -78,18 +78,11 @@ public:
rclcpp::node_interfaces::NodeBaseInterface * node_base,
const std::string & topic,
const rosidl_message_type_support_t & type_support,
const rcl_publisher_options_t & publisher_options,
const PublisherEventCallbacks & event_callbacks,
bool use_default_callbacks);
const rcl_publisher_options_t & publisher_options);
RCLCPP_PUBLIC
virtual ~PublisherBase();
/// Add event handlers for passed in event_callbacks.
RCLCPP_PUBLIC
void
bind_event_callbacks(const PublisherEventCallbacks & event_callbacks, bool use_default_callbacks);
/// Get the topic that this publisher publishes on.
/** \return The topic name. */
RCLCPP_PUBLIC
@@ -124,7 +117,7 @@ public:
/** \return The map of QoS event handlers. */
RCLCPP_PUBLIC
const
std::unordered_map<rcl_publisher_event_type_t, std::shared_ptr<rclcpp::EventHandlerBase>> &
std::unordered_map<rcl_publisher_event_type_t, std::shared_ptr<rclcpp::QOSEventHandlerBase>> &
get_event_handlers() const;
/// Get subscription count
@@ -276,7 +269,7 @@ public:
* If you want more information available in the callback, like the qos event
* or other information, you may use a lambda with captures or std::bind.
*
* \sa rclcpp::EventHandlerBase::set_on_ready_callback
* \sa rclcpp::QOSEventHandlerBase::set_on_ready_callback
*
* \param[in] callback functor to be called when a new event occurs
* \param[in] event_type identifier for the qos event we want to attach the callback to
@@ -327,7 +320,7 @@ protected:
const EventCallbackT & callback,
const rcl_publisher_event_type_t event_type)
{
auto handler = std::make_shared<EventHandler<EventCallbackT,
auto handler = std::make_shared<QOSEventHandler<EventCallbackT,
std::shared_ptr<rcl_publisher_t>>>(
callback,
rcl_publisher_event_init,
@@ -339,15 +332,12 @@ protected:
RCLCPP_PUBLIC
void default_incompatible_qos_callback(QOSOfferedIncompatibleQoSInfo & info) const;
RCLCPP_PUBLIC
void default_incompatible_type_callback(IncompatibleTypeInfo & info) const;
std::shared_ptr<rcl_node_t> rcl_node_handle_;
std::shared_ptr<rcl_publisher_t> publisher_handle_;
std::unordered_map<rcl_publisher_event_type_t,
std::shared_ptr<rclcpp::EventHandlerBase>> event_handlers_;
std::shared_ptr<rclcpp::QOSEventHandlerBase>> event_handlers_;
using IntraProcessManagerWeakPtr =
std::weak_ptr<rclcpp::experimental::IntraProcessManager>;
@@ -358,8 +348,6 @@ protected:
rmw_gid_t rmw_gid_;
const rosidl_message_type_support_t type_support_;
const PublisherEventCallbacks event_callbacks_;
};
} // namespace rclcpp

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@@ -26,7 +26,7 @@
#include "rclcpp/detail/rmw_implementation_specific_publisher_payload.hpp"
#include "rclcpp/intra_process_setting.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/event_handler.hpp"
#include "rclcpp/qos_event.hpp"
#include "rclcpp/qos_overriding_options.hpp"
namespace rclcpp

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@@ -80,9 +80,7 @@ struct RCLCPP_PUBLIC QoSInitialization
size_t depth;
/// Constructor which takes both a history policy and a depth (even if it would be unused).
QoSInitialization(
rmw_qos_history_policy_t history_policy_arg, size_t depth_arg,
bool print_depth_warning = true);
QoSInitialization(rmw_qos_history_policy_t history_policy_arg, size_t depth_arg);
/// Create a QoSInitialization from an existing rmw_qos_profile_t, using its history and depth.
static
@@ -99,7 +97,7 @@ struct RCLCPP_PUBLIC KeepAll : public rclcpp::QoSInitialization
/// Use to initialize the QoS with the keep_last history setting and the given depth.
struct RCLCPP_PUBLIC KeepLast : public rclcpp::QoSInitialization
{
explicit KeepLast(size_t depth, bool print_depth_warning = true);
explicit KeepLast(size_t depth);
};
/// Encapsulation of Quality of Service settings.

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@@ -15,8 +15,277 @@
#ifndef RCLCPP__QOS_EVENT_HPP_
#define RCLCPP__QOS_EVENT_HPP_
#warning This header is obsolete, please include rclcpp/event_handler.hpp instead
#include <functional>
#include <memory>
#include <mutex>
#include <stdexcept>
#include <string>
#include "rclcpp/event_handler.hpp"
#include "rcl/error_handling.h"
#include "rcl/event_callback.h"
#include "rmw/impl/cpp/demangle.hpp"
#include "rmw/incompatible_qos_events_statuses.h"
#include "rcutils/logging_macros.h"
#include "rclcpp/detail/cpp_callback_trampoline.hpp"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/function_traits.hpp"
#include "rclcpp/logging.hpp"
#include "rclcpp/waitable.hpp"
namespace rclcpp
{
using QOSDeadlineRequestedInfo = rmw_requested_deadline_missed_status_t;
using QOSDeadlineOfferedInfo = rmw_offered_deadline_missed_status_t;
using QOSLivelinessChangedInfo = rmw_liveliness_changed_status_t;
using QOSLivelinessLostInfo = rmw_liveliness_lost_status_t;
using QOSMessageLostInfo = rmw_message_lost_status_t;
using QOSOfferedIncompatibleQoSInfo = rmw_offered_qos_incompatible_event_status_t;
using QOSRequestedIncompatibleQoSInfo = rmw_requested_qos_incompatible_event_status_t;
using QOSDeadlineRequestedCallbackType = std::function<void (QOSDeadlineRequestedInfo &)>;
using QOSDeadlineOfferedCallbackType = std::function<void (QOSDeadlineOfferedInfo &)>;
using QOSLivelinessChangedCallbackType = std::function<void (QOSLivelinessChangedInfo &)>;
using QOSLivelinessLostCallbackType = std::function<void (QOSLivelinessLostInfo &)>;
using QOSMessageLostCallbackType = std::function<void (QOSMessageLostInfo &)>;
using QOSOfferedIncompatibleQoSCallbackType = std::function<void (QOSOfferedIncompatibleQoSInfo &)>;
using QOSRequestedIncompatibleQoSCallbackType =
std::function<void (QOSRequestedIncompatibleQoSInfo &)>;
/// Contains callbacks for various types of events a Publisher can receive from the middleware.
struct PublisherEventCallbacks
{
QOSDeadlineOfferedCallbackType deadline_callback;
QOSLivelinessLostCallbackType liveliness_callback;
QOSOfferedIncompatibleQoSCallbackType incompatible_qos_callback;
};
/// Contains callbacks for non-message events that a Subscription can receive from the middleware.
struct SubscriptionEventCallbacks
{
QOSDeadlineRequestedCallbackType deadline_callback;
QOSLivelinessChangedCallbackType liveliness_callback;
QOSRequestedIncompatibleQoSCallbackType incompatible_qos_callback;
QOSMessageLostCallbackType message_lost_callback;
};
class UnsupportedEventTypeException : public exceptions::RCLErrorBase, public std::runtime_error
{
public:
RCLCPP_PUBLIC
UnsupportedEventTypeException(
rcl_ret_t ret,
const rcl_error_state_t * error_state,
const std::string & prefix);
RCLCPP_PUBLIC
UnsupportedEventTypeException(
const exceptions::RCLErrorBase & base_exc,
const std::string & prefix);
};
class QOSEventHandlerBase : public Waitable
{
public:
enum class EntityType : std::size_t
{
Event,
};
RCLCPP_PUBLIC
virtual ~QOSEventHandlerBase();
/// Get the number of ready events
RCLCPP_PUBLIC
size_t
get_number_of_ready_events() override;
/// Add the Waitable to a wait set.
RCLCPP_PUBLIC
void
add_to_wait_set(rcl_wait_set_t * wait_set) override;
/// Check if the Waitable is ready.
RCLCPP_PUBLIC
bool
is_ready(rcl_wait_set_t * wait_set) override;
/// Set a callback to be called when each new event instance occurs.
/**
* The callback receives a size_t which is the number of events that occurred
* since the last time this callback was called.
* Normally this is 1, but can be > 1 if events occurred before any
* callback was set.
*
* The callback also receives an int identifier argument.
* This is needed because a Waitable may be composed of several distinct entities,
* such as subscriptions, services, etc.
* The application should provide a generic callback function that will be then
* forwarded by the waitable to all of its entities.
* Before forwarding, a different value for the identifier argument will be
* bond to the function.
* This implies that the provided callback can use the identifier to behave
* differently depending on which entity triggered the waitable to become ready.
*
* Since this callback is called from the middleware, you should aim to make
* it fast and not blocking.
* If you need to do a lot of work or wait for some other event, you should
* spin it off to another thread, otherwise you risk blocking the middleware.
*
* Calling it again will clear any previously set callback.
*
* An exception will be thrown if the callback is not callable.
*
* This function is thread-safe.
*
* If you want more information available in the callback, like the qos event
* or other information, you may use a lambda with captures or std::bind.
*
* \sa rmw_event_set_callback
* \sa rcl_event_set_callback
*
* \param[in] callback functor to be called when a new event occurs
*/
void
set_on_ready_callback(std::function<void(size_t, int)> callback) override
{
if (!callback) {
throw std::invalid_argument(
"The callback passed to set_on_ready_callback "
"is not callable.");
}
// Note: we bind the int identifier argument to this waitable's entity types
auto new_callback =
[callback, this](size_t number_of_events) {
try {
callback(number_of_events, static_cast<int>(EntityType::Event));
} catch (const std::exception & exception) {
RCLCPP_ERROR_STREAM(
// TODO(wjwwood): get this class access to the node logger it is associated with
rclcpp::get_logger("rclcpp"),
"rclcpp::QOSEventHandlerBase@" << this <<
" caught " << rmw::impl::cpp::demangle(exception) <<
" exception in user-provided callback for the 'on ready' callback: " <<
exception.what());
} catch (...) {
RCLCPP_ERROR_STREAM(
rclcpp::get_logger("rclcpp"),
"rclcpp::QOSEventHandlerBase@" << this <<
" caught unhandled exception in user-provided callback " <<
"for the 'on ready' callback");
}
};
std::lock_guard<std::recursive_mutex> lock(callback_mutex_);
// Set it temporarily to the new callback, while we replace the old one.
// This two-step setting, prevents a gap where the old std::function has
// been replaced but the middleware hasn't been told about the new one yet.
set_on_new_event_callback(
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&new_callback));
// Store the std::function to keep it in scope, also overwrites the existing one.
on_new_event_callback_ = new_callback;
// Set it again, now using the permanent storage.
set_on_new_event_callback(
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&on_new_event_callback_));
}
/// Unset the callback registered for new events, if any.
void
clear_on_ready_callback() override
{
std::lock_guard<std::recursive_mutex> lock(callback_mutex_);
if (on_new_event_callback_) {
set_on_new_event_callback(nullptr, nullptr);
on_new_event_callback_ = nullptr;
}
}
protected:
RCLCPP_PUBLIC
void
set_on_new_event_callback(rcl_event_callback_t callback, const void * user_data);
rcl_event_t event_handle_;
size_t wait_set_event_index_;
std::recursive_mutex callback_mutex_;
std::function<void(size_t)> on_new_event_callback_{nullptr};
};
template<typename EventCallbackT, typename ParentHandleT>
class QOSEventHandler : public QOSEventHandlerBase
{
public:
template<typename InitFuncT, typename EventTypeEnum>
QOSEventHandler(
const EventCallbackT & callback,
InitFuncT init_func,
ParentHandleT parent_handle,
EventTypeEnum event_type)
: parent_handle_(parent_handle), event_callback_(callback)
{
event_handle_ = rcl_get_zero_initialized_event();
rcl_ret_t ret = init_func(&event_handle_, parent_handle.get(), event_type);
if (ret != RCL_RET_OK) {
if (ret == RCL_RET_UNSUPPORTED) {
UnsupportedEventTypeException exc(ret, rcl_get_error_state(), "Failed to initialize event");
rcl_reset_error();
throw exc;
} else {
rclcpp::exceptions::throw_from_rcl_error(ret, "Failed to initialize event");
}
}
}
/// Take data so that the callback cannot be scheduled again
std::shared_ptr<void>
take_data() override
{
EventCallbackInfoT callback_info;
rcl_ret_t ret = rcl_take_event(&event_handle_, &callback_info);
if (ret != RCL_RET_OK) {
RCUTILS_LOG_ERROR_NAMED(
"rclcpp",
"Couldn't take event info: %s", rcl_get_error_string().str);
return nullptr;
}
return std::static_pointer_cast<void>(std::make_shared<EventCallbackInfoT>(callback_info));
}
std::shared_ptr<void>
take_data_by_entity_id(size_t id) override
{
(void)id;
return take_data();
}
/// Execute any entities of the Waitable that are ready.
void
execute(std::shared_ptr<void> & data) override
{
if (!data) {
throw std::runtime_error("'data' is empty");
}
auto callback_ptr = std::static_pointer_cast<EventCallbackInfoT>(data);
event_callback_(*callback_ptr);
callback_ptr.reset();
}
private:
using EventCallbackInfoT = typename std::remove_reference<typename
rclcpp::function_traits::function_traits<EventCallbackT>::template argument_type<0>>::type;
ParentHandleT parent_handle_;
EventCallbackT event_callback_;
};
} // namespace rclcpp
#endif // RCLCPP__QOS_EVENT_HPP_

View File

@@ -117,18 +117,6 @@
* - Allocator related items:
* - rclcpp/allocator/allocator_common.hpp
* - rclcpp/allocator/allocator_deleter.hpp
* - Dynamic typesupport wrappers
* - rclcpp::dynamic_typesupport::DynamicMessage
* - rclcpp::dynamic_typesupport::DynamicMessageType
* - rclcpp::dynamic_typesupport::DynamicMessageTypeBuilder
* - rclcpp::dynamic_typesupport::DynamicSerializationSupport
* - rclcpp/dynamic_typesupport/dynamic_message.hpp
* - rclcpp/dynamic_typesupport/dynamic_message_type.hpp
* - rclcpp/dynamic_typesupport/dynamic_message_type_builder.hpp
* - rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp
* - Dynamic typesupport
* - rclcpp::dynamic_typesupport::DynamicMessageTypeSupport
* - rclcpp/dynamic_typesupport/dynamic_message_type_support.hpp
* - Generic publisher
* - rclcpp::Node::create_generic_publisher()
* - rclcpp::GenericPublisher

View File

@@ -0,0 +1,56 @@
// Copyright 2015 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.
// Based on: http://the-witness.net/news/2012/11/scopeexit-in-c11/
// But I changed the lambda to include by reference rather than value, see:
// http://the-witness.net/news/2012/11/scopeexit-in-c11/comment-page-1/#comment-86873
#ifndef RCLCPP__SCOPE_EXIT_HPP_
#define RCLCPP__SCOPE_EXIT_HPP_
// TODO(christophebedard) remove this header completely in I-turtle
#warning rclcpp/scope_exit.hpp has been deprecated, please use rcpputils/scope_exit.hpp instead
#include <functional>
#include "rclcpp/macros.hpp"
namespace rclcpp
{
template<typename Callable>
struct ScopeExit
{
explicit ScopeExit(Callable callable)
: callable_(callable) {}
~ScopeExit() {callable_();}
private:
Callable callable_;
};
template<typename Callable>
ScopeExit<Callable>
make_scope_exit(Callable callable)
{
return ScopeExit<Callable>(callable);
}
} // namespace rclcpp
#define RCLCPP_SCOPE_EXIT(code) \
auto RCLCPP_STRING_JOIN(scope_exit_, __LINE__) = rclcpp::make_scope_exit([&]() {code;})
#endif // RCLCPP__SCOPE_EXIT_HPP_

View File

@@ -26,7 +26,6 @@
#include "rcl/error_handling.h"
#include "rcl/event_callback.h"
#include "rcl/service.h"
#include "rcl/service_introspection.h"
#include "rmw/error_handling.h"
#include "rmw/impl/cpp/demangle.hpp"
@@ -35,7 +34,6 @@
#include "tracetools/tracetools.h"
#include "rclcpp/any_service_callback.hpp"
#include "rclcpp/clock.hpp"
#include "rclcpp/detail/cpp_callback_trampoline.hpp"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/expand_topic_or_service_name.hpp"
@@ -224,7 +222,7 @@ public:
// This two-step setting, prevents a gap where the old std::function has
// been replaced but the middleware hasn't been told about the new one yet.
set_on_new_request_callback(
rclcpp::detail::cpp_callback_trampoline<decltype(new_callback), const void *, size_t>,
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&new_callback));
// Store the std::function to keep it in scope, also overwrites the existing one.
@@ -232,8 +230,7 @@ public:
// Set it again, now using the permanent storage.
set_on_new_request_callback(
rclcpp::detail::cpp_callback_trampoline<
decltype(on_new_request_callback_), const void *, size_t>,
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&on_new_request_callback_));
}
@@ -310,9 +307,11 @@ public:
const std::string & service_name,
AnyServiceCallback<ServiceT> any_callback,
rcl_service_options_t & service_options)
: ServiceBase(node_handle), any_callback_(any_callback),
srv_type_support_handle_(rosidl_typesupport_cpp::get_service_type_support_handle<ServiceT>())
: ServiceBase(node_handle), any_callback_(any_callback)
{
using rosidl_typesupport_cpp::get_service_type_support_handle;
auto service_type_support_handle = get_service_type_support_handle<ServiceT>();
// rcl does the static memory allocation here
service_handle_ = std::shared_ptr<rcl_service_t>(
new rcl_service_t, [handle = node_handle_, service_name](rcl_service_t * service)
@@ -331,7 +330,7 @@ public:
rcl_ret_t ret = rcl_service_init(
service_handle_.get(),
node_handle.get(),
srv_type_support_handle_,
service_type_support_handle,
service_name.c_str(),
&service_options);
if (ret != RCL_RET_OK) {
@@ -371,8 +370,8 @@ public:
std::shared_ptr<rcl_node_t> node_handle,
std::shared_ptr<rcl_service_t> service_handle,
AnyServiceCallback<ServiceT> any_callback)
: ServiceBase(node_handle), any_callback_(any_callback),
srv_type_support_handle_(rosidl_typesupport_cpp::get_service_type_support_handle<ServiceT>())
: ServiceBase(node_handle),
any_callback_(any_callback)
{
// check if service handle was initialized
if (!rcl_service_is_valid(service_handle.get())) {
@@ -406,8 +405,8 @@ public:
std::shared_ptr<rcl_node_t> node_handle,
rcl_service_t * service_handle,
AnyServiceCallback<ServiceT> any_callback)
: ServiceBase(node_handle), any_callback_(any_callback),
srv_type_support_handle_(rosidl_typesupport_cpp::get_service_type_support_handle<ServiceT>())
: ServiceBase(node_handle),
any_callback_(any_callback)
{
// check if service handle was initialized
if (!rcl_service_is_valid(service_handle)) {
@@ -487,39 +486,10 @@ public:
}
}
/// Configure client introspection.
/**
* \param[in] clock clock to use to generate introspection timestamps
* \param[in] qos_service_event_pub QoS settings to use when creating the introspection publisher
* \param[in] introspection_state the state to set introspection to
*/
void
configure_introspection(
Clock::SharedPtr clock, const QoS & qos_service_event_pub,
rcl_service_introspection_state_t introspection_state)
{
rcl_publisher_options_t pub_opts = rcl_publisher_get_default_options();
pub_opts.qos = qos_service_event_pub.get_rmw_qos_profile();
rcl_ret_t ret = rcl_service_configure_service_introspection(
service_handle_.get(),
node_handle_.get(),
clock->get_clock_handle(),
srv_type_support_handle_,
pub_opts,
introspection_state);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "failed to configure service introspection");
}
}
private:
RCLCPP_DISABLE_COPY(Service)
AnyServiceCallback<ServiceT> any_callback_;
const rosidl_service_type_support_t * srv_type_support_handle_;
};
} // namespace rclcpp

View File

@@ -17,7 +17,6 @@
#include <memory>
#include <vector>
#include <utility>
#include "rcl/allocator.h"
@@ -121,8 +120,8 @@ public:
}
}
for (size_t i = 0; i < waitable_handles_.size(); ++i) {
if (waitable_handles_[i]->is_ready(wait_set)) {
waitable_triggered_handles_.emplace_back(std::move(waitable_handles_[i]));
if (!waitable_handles_[i]->is_ready(wait_set)) {
waitable_handles_[i].reset();
}
}
@@ -146,7 +145,10 @@ public:
timer_handles_.end()
);
waitable_handles_.clear();
waitable_handles_.erase(
std::remove(waitable_handles_.begin(), waitable_handles_.end(), nullptr),
waitable_handles_.end()
);
}
bool collect_entities(const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes) override
@@ -390,9 +392,8 @@ public:
rclcpp::AnyExecutable & any_exec,
const WeakCallbackGroupsToNodesMap & weak_groups_to_nodes) override
{
auto & waitable_handles = waitable_triggered_handles_;
auto it = waitable_handles.begin();
while (it != waitable_handles.end()) {
auto it = waitable_handles_.begin();
while (it != waitable_handles_.end()) {
std::shared_ptr<Waitable> & waitable = *it;
if (waitable) {
// Find the group for this handle and see if it can be serviced
@@ -400,7 +401,7 @@ public:
if (!group) {
// Group was not found, meaning the waitable is not valid...
// Remove it from the ready list and continue looking
it = waitable_handles.erase(it);
it = waitable_handles_.erase(it);
continue;
}
if (!group->can_be_taken_from().load()) {
@@ -413,11 +414,11 @@ public:
any_exec.waitable = waitable;
any_exec.callback_group = group;
any_exec.node_base = get_node_by_group(group, weak_groups_to_nodes);
waitable_handles.erase(it);
waitable_handles_.erase(it);
return;
}
// Else, the waitable is no longer valid, remove it and continue
it = waitable_handles.erase(it);
it = waitable_handles_.erase(it);
}
}
@@ -498,8 +499,6 @@ private:
VectorRebind<std::shared_ptr<const rcl_timer_t>> timer_handles_;
VectorRebind<std::shared_ptr<Waitable>> waitable_handles_;
VectorRebind<std::shared_ptr<Waitable>> waitable_triggered_handles_;
std::shared_ptr<VoidAlloc> allocator_;
};

View File

@@ -140,15 +140,44 @@ public:
node_base,
type_support_handle,
topic_name,
options.to_rcl_subscription_options(qos),
// NOTE(methylDragon): Passing these args separately is necessary for event binding
options.event_callbacks,
options.use_default_callbacks,
callback.is_serialized_message_callback() ? DeliveredMessageKind::SERIALIZED_MESSAGE : DeliveredMessageKind::ROS_MESSAGE), // NOLINT
options.template to_rcl_subscription_options<ROSMessageType>(qos),
callback.is_serialized_message_callback()),
any_callback_(callback),
options_(options),
message_memory_strategy_(message_memory_strategy)
{
if (options_.event_callbacks.deadline_callback) {
this->add_event_handler(
options_.event_callbacks.deadline_callback,
RCL_SUBSCRIPTION_REQUESTED_DEADLINE_MISSED);
}
if (options_.event_callbacks.liveliness_callback) {
this->add_event_handler(
options_.event_callbacks.liveliness_callback,
RCL_SUBSCRIPTION_LIVELINESS_CHANGED);
}
if (options_.event_callbacks.incompatible_qos_callback) {
this->add_event_handler(
options_.event_callbacks.incompatible_qos_callback,
RCL_SUBSCRIPTION_REQUESTED_INCOMPATIBLE_QOS);
} else if (options_.use_default_callbacks) {
// Register default callback when not specified
try {
this->add_event_handler(
[this](QOSRequestedIncompatibleQoSInfo & info) {
this->default_incompatible_qos_callback(info);
},
RCL_SUBSCRIPTION_REQUESTED_INCOMPATIBLE_QOS);
} catch (UnsupportedEventTypeException & /*exc*/) {
// pass
}
}
if (options_.event_callbacks.message_lost_callback) {
this->add_event_handler(
options_.event_callbacks.message_lost_callback,
RCL_SUBSCRIPTION_MESSAGE_LOST);
}
// Setup intra process publishing if requested.
if (rclcpp::detail::resolve_use_intra_process(options_, *node_base)) {
using rclcpp::detail::resolve_intra_process_buffer_type;
@@ -388,57 +417,6 @@ public:
return any_callback_.use_take_shared_method();
}
// DYNAMIC TYPE ==================================================================================
// TODO(methylDragon): Reorder later
// TODO(methylDragon): Implement later...
rclcpp::dynamic_typesupport::DynamicMessageType::SharedPtr
get_shared_dynamic_message_type() override
{
throw rclcpp::exceptions::UnimplementedError(
"get_shared_dynamic_message_type is not implemented for Subscription");
}
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr
get_shared_dynamic_message() override
{
throw rclcpp::exceptions::UnimplementedError(
"get_shared_dynamic_message is not implemented for Subscription");
}
rclcpp::dynamic_typesupport::DynamicSerializationSupport::SharedPtr
get_shared_dynamic_serialization_support() override
{
throw rclcpp::exceptions::UnimplementedError(
"get_shared_dynamic_serialization_support is not implemented for Subscription");
}
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr
create_dynamic_message() override
{
throw rclcpp::exceptions::UnimplementedError(
"create_dynamic_message is not implemented for Subscription");
}
void
return_dynamic_message(
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message) override
{
(void) message;
throw rclcpp::exceptions::UnimplementedError(
"return_dynamic_message is not implemented for Subscription");
}
void
handle_dynamic_message(
const rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message,
const rclcpp::MessageInfo & message_info) override
{
(void) message;
(void) message_info;
throw rclcpp::exceptions::UnimplementedError(
"handle_dynamic_message is not implemented for Subscription");
}
private:
RCLCPP_DISABLE_COPY(Subscription)

View File

@@ -31,16 +31,13 @@
#include "rclcpp/any_subscription_callback.hpp"
#include "rclcpp/detail/cpp_callback_trampoline.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/experimental/intra_process_manager.hpp"
#include "rclcpp/experimental/subscription_intra_process_base.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/message_info.hpp"
#include "rclcpp/network_flow_endpoint.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/event_handler.hpp"
#include "rclcpp/qos_event.hpp"
#include "rclcpp/serialized_message.hpp"
#include "rclcpp/subscription_content_filter_options.hpp"
#include "rclcpp/type_support_decl.hpp"
@@ -63,27 +60,6 @@ namespace experimental
class IntraProcessManager;
} // namespace experimental
/// The kind of message that the subscription delivers in its callback, used by the executor
/**
* This enum needs to exist because the callback handle is not accessible to the executor's scope.
*
* "Kind" is used since what is being delivered is a category of messages, for example, there are
* different ROS message types that can be delivered, but they're all ROS messages.
*
* As a concrete example, all of the following callbacks will be considered ROS_MESSAGE for
* DeliveredMessageKind:
* - void callback(const std_msgs::msg::String &)
* - void callback(const std::string &) // type adaption
* - void callback(std::unique_ptr<std_msgs::msg::String>)
*/
enum class DeliveredMessageKind : uint8_t
{
INVALID = 0,
ROS_MESSAGE = 1, // The subscription delivers a ROS message to its callback
SERIALIZED_MESSAGE = 2, // The subscription delivers a serialized message to its callback
DYNAMIC_MESSAGE = 3, // The subscription delivers a dynamic message to its callback
};
/// Virtual base class for subscriptions. This pattern allows us to iterate over different template
/// specializations of Subscription, among other things.
class SubscriptionBase : public std::enable_shared_from_this<SubscriptionBase>
@@ -100,8 +76,7 @@ public:
* \param[in] type_support_handle rosidl type support struct, for the Message type of the topic.
* \param[in] topic_name Name of the topic to subscribe to.
* \param[in] subscription_options Options for the subscription.
* \param[in] delivered_message_kind Enum flag to change how the message will be received and
* delivered
* \param[in] is_serialized is true if the message will be delivered still serialized
*/
RCLCPP_PUBLIC
SubscriptionBase(
@@ -109,20 +84,12 @@ public:
const rosidl_message_type_support_t & type_support_handle,
const std::string & topic_name,
const rcl_subscription_options_t & subscription_options,
const SubscriptionEventCallbacks & event_callbacks,
bool use_default_callbacks,
DeliveredMessageKind delivered_message_kind = DeliveredMessageKind::ROS_MESSAGE);
bool is_serialized = false);
/// Destructor.
RCLCPP_PUBLIC
virtual ~SubscriptionBase();
/// Add event handlers for passed in event_callbacks.
RCLCPP_PUBLIC
void
bind_event_callbacks(
const SubscriptionEventCallbacks & event_callbacks, bool use_default_callbacks);
/// Get the topic that this subscription is subscribed on.
RCLCPP_PUBLIC
const char *
@@ -140,7 +107,7 @@ public:
/** \return The map of QoS event handlers. */
RCLCPP_PUBLIC
const
std::unordered_map<rcl_subscription_event_type_t, std::shared_ptr<rclcpp::EventHandlerBase>> &
std::unordered_map<rcl_subscription_event_type_t, std::shared_ptr<rclcpp::QOSEventHandlerBase>> &
get_event_handlers() const;
/// Get the actual QoS settings, after the defaults have been determined.
@@ -260,14 +227,6 @@ public:
bool
is_serialized() const;
/// Return the type of the subscription.
/**
* \return `DeliveredMessageKind`, which adjusts how messages are received and delivered.
*/
RCLCPP_PUBLIC
DeliveredMessageKind
get_subscription_type() const;
/// Get matching publisher count.
/** \return The number of publishers on this topic. */
RCLCPP_PUBLIC
@@ -389,7 +348,7 @@ public:
// This two-step setting, prevents a gap where the old std::function has
// been replaced but the middleware hasn't been told about the new one yet.
set_on_new_message_callback(
rclcpp::detail::cpp_callback_trampoline<decltype(new_callback), const void *, size_t>,
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&new_callback));
// Store the std::function to keep it in scope, also overwrites the existing one.
@@ -397,8 +356,7 @@ public:
// Set it again, now using the permanent storage.
set_on_new_message_callback(
rclcpp::detail::cpp_callback_trampoline<
decltype(on_new_message_callback_), const void *, size_t>,
rclcpp::detail::cpp_callback_trampoline<const void *, size_t>,
static_cast<const void *>(&on_new_message_callback_));
}
@@ -490,7 +448,7 @@ public:
* If you want more information available in the callback, like the qos event
* or other information, you may use a lambda with captures or std::bind.
*
* \sa rclcpp::EventHandlerBase::set_on_ready_callback
* \sa rclcpp::QOSEventHandlerBase::set_on_ready_callback
*
* \param[in] callback functor to be called when a new event occurs
* \param[in] event_type identifier for the qos event we want to attach the callback to
@@ -568,49 +526,6 @@ public:
rclcpp::ContentFilterOptions
get_content_filter() const;
// DYNAMIC TYPE ==================================================================================
// TODO(methylDragon): Reorder later
RCLCPP_PUBLIC
virtual
rclcpp::dynamic_typesupport::DynamicMessageType::SharedPtr
get_shared_dynamic_message_type() = 0;
RCLCPP_PUBLIC
virtual
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr
get_shared_dynamic_message() = 0;
RCLCPP_PUBLIC
virtual
rclcpp::dynamic_typesupport::DynamicSerializationSupport::SharedPtr
get_shared_dynamic_serialization_support() = 0;
/// Borrow a new serialized message (this clones!)
/** \return Shared pointer to a rclcpp::dynamic_typesupport::DynamicMessage. */
RCLCPP_PUBLIC
virtual
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr
create_dynamic_message() = 0;
RCLCPP_PUBLIC
virtual
void
return_dynamic_message(rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message) = 0;
RCLCPP_PUBLIC
virtual
void
handle_dynamic_message(
const rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message,
const rclcpp::MessageInfo & message_info) = 0;
RCLCPP_PUBLIC
bool
take_dynamic_message(
rclcpp::dynamic_typesupport::DynamicMessage & message_out,
rclcpp::MessageInfo & message_info_out);
// ===============================================================================================
protected:
template<typename EventCallbackT>
void
@@ -618,7 +533,7 @@ protected:
const EventCallbackT & callback,
const rcl_subscription_event_type_t event_type)
{
auto handler = std::make_shared<EventHandler<EventCallbackT,
auto handler = std::make_shared<QOSEventHandler<EventCallbackT,
std::shared_ptr<rcl_subscription_t>>>(
callback,
rcl_subscription_event_init,
@@ -631,9 +546,6 @@ protected:
RCLCPP_PUBLIC
void default_incompatible_qos_callback(QOSRequestedIncompatibleQoSInfo & info) const;
RCLCPP_PUBLIC
void default_incompatible_type_callback(IncompatibleTypeInfo & info) const;
RCLCPP_PUBLIC
bool
matches_any_intra_process_publishers(const rmw_gid_t * sender_gid) const;
@@ -650,24 +562,22 @@ protected:
rclcpp::Logger node_logger_;
std::unordered_map<rcl_subscription_event_type_t,
std::shared_ptr<rclcpp::EventHandlerBase>> event_handlers_;
std::shared_ptr<rclcpp::QOSEventHandlerBase>> event_handlers_;
bool use_intra_process_;
IntraProcessManagerWeakPtr weak_ipm_;
uint64_t intra_process_subscription_id_;
std::shared_ptr<rclcpp::experimental::SubscriptionIntraProcessBase> subscription_intra_process_;
const SubscriptionEventCallbacks event_callbacks_;
private:
RCLCPP_DISABLE_COPY(SubscriptionBase)
rosidl_message_type_support_t type_support_;
DeliveredMessageKind delivered_message_type_;
bool is_serialized_;
std::atomic<bool> subscription_in_use_by_wait_set_{false};
std::atomic<bool> intra_process_subscription_waitable_in_use_by_wait_set_{false};
std::unordered_map<rclcpp::EventHandlerBase *,
std::unordered_map<rclcpp::QOSEventHandlerBase *,
std::atomic<bool>> qos_events_in_use_by_wait_set_;
std::recursive_mutex callback_mutex_;

View File

@@ -26,7 +26,7 @@
#include "rclcpp/intra_process_buffer_type.hpp"
#include "rclcpp/intra_process_setting.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/event_handler.hpp"
#include "rclcpp/qos_event.hpp"
#include "rclcpp/qos_overriding_options.hpp"
#include "rclcpp/subscription_content_filter_options.hpp"
#include "rclcpp/topic_statistics_state.hpp"
@@ -110,6 +110,7 @@ struct SubscriptionOptionsWithAllocator : public SubscriptionOptionsBase
* \param qos QoS profile for subcription.
* \return rcl_subscription_options_t structure based on the rclcpp::QoS
*/
template<typename MessageT>
rcl_subscription_options_t
to_rcl_subscription_options(const rclcpp::QoS & qos) const
{

View File

@@ -149,48 +149,11 @@ public:
bool
exchange_in_use_by_wait_set_state(bool in_use_state);
/// Set a callback to be called when the timer is reset
/**
* You should aim to make this callback fast and not blocking.
* If you need to do a lot of work or wait for some other event, you should
* spin it off to another thread.
*
* Calling it again will override any previously set callback.
* An exception will be thrown if the callback is not callable.
*
* This function is thread-safe.
*
* If you want more information available in the callback,
* you may use a lambda with captures or std::bind.
*
* \param[in] callback functor to be called whenever timer is reset
*/
RCLCPP_PUBLIC
void
set_on_reset_callback(std::function<void(size_t)> callback);
/// Unset the callback registered for reset timer
RCLCPP_PUBLIC
void
clear_on_reset_callback();
protected:
std::recursive_mutex callback_mutex_;
// Declare callback before timer_handle_, so on destruction
// the callback is destroyed last. Otherwise, the rcl timer
// callback would point briefly to a destroyed function.
// Clearing the callback on timer destructor also makes sure
// the rcl callback is cleared before on_reset_callback_.
std::function<void(size_t)> on_reset_callback_{nullptr};
Clock::SharedPtr clock_;
std::shared_ptr<rcl_timer_t> timer_handle_;
std::atomic<bool> in_use_by_wait_set_{false};
RCLCPP_PUBLIC
void
set_on_reset_callback(rcl_event_callback_t callback, const void * user_data);
};
@@ -227,16 +190,10 @@ public:
rclcpp_timer_callback_added,
static_cast<const void *>(get_timer_handle().get()),
reinterpret_cast<const void *>(&callback_));
#ifndef TRACETOOLS_DISABLED
if (TRACEPOINT_ENABLED(rclcpp_callback_register)) {
char * symbol = tracetools::get_symbol(callback_);
DO_TRACEPOINT(
rclcpp_callback_register,
reinterpret_cast<const void *>(&callback_),
symbol);
std::free(symbol);
}
#endif
TRACEPOINT(
rclcpp_callback_register,
reinterpret_cast<const void *>(&callback_),
tracetools::get_symbol(callback_));
}
/// Default destructor.

View File

@@ -104,7 +104,7 @@ protected:
// TODO(wjwwood): support custom allocator, maybe restrict to polymorphic allocator
rcl_get_default_allocator());
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Failed to create wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
// (Re)build the wait set for the first time.
@@ -192,7 +192,8 @@ protected:
size_t services_from_waitables = 0;
size_t events_from_waitables = 0;
for (const auto & waitable_entry : waitables) {
if (!waitable_entry.waitable) {
auto waitable_ptr_pair = get_raw_pointer_from_smart_pointer(waitable_entry.waitable);
if (nullptr == waitable_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -203,13 +204,13 @@ protected:
needs_pruning_ = true;
continue;
}
const auto & waitable = waitable_entry.waitable;
subscriptions_from_waitables += waitable->get_number_of_ready_subscriptions();
guard_conditions_from_waitables += waitable->get_number_of_ready_guard_conditions();
timers_from_waitables += waitable->get_number_of_ready_timers();
clients_from_waitables += waitable->get_number_of_ready_clients();
services_from_waitables += waitable->get_number_of_ready_services();
events_from_waitables += waitable->get_number_of_ready_events();
rclcpp::Waitable & waitable = *waitable_ptr_pair.second;
subscriptions_from_waitables += waitable.get_number_of_ready_subscriptions();
guard_conditions_from_waitables += waitable.get_number_of_ready_guard_conditions();
timers_from_waitables += waitable.get_number_of_ready_timers();
clients_from_waitables += waitable.get_number_of_ready_clients();
services_from_waitables += waitable.get_number_of_ready_services();
events_from_waitables += waitable.get_number_of_ready_events();
}
rcl_ret_t ret = rcl_wait_set_resize(
&rcl_wait_set_,
@@ -221,7 +222,7 @@ protected:
events_from_waitables
);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Couldn't resize the wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
was_resized = true;
// Assumption: the calling code ensures this function is not called
@@ -237,13 +238,15 @@ protected:
if (!was_resized) {
rcl_ret_t ret = rcl_wait_set_clear(&rcl_wait_set_);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Couldn't clear the wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
}
// Add subscriptions.
for (const auto & subscription_entry : subscriptions) {
if (!subscription_entry.subscription) {
auto subscription_ptr_pair =
get_raw_pointer_from_smart_pointer(subscription_entry.subscription);
if (nullptr == subscription_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -254,13 +257,12 @@ protected:
needs_pruning_ = true;
continue;
}
rcl_ret_t ret = rcl_wait_set_add_subscription(
&rcl_wait_set_,
subscription_entry.subscription->get_subscription_handle().get(),
subscription_ptr_pair.second->get_subscription_handle().get(),
nullptr);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Couldn't fill wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
}
@@ -269,7 +271,8 @@ protected:
[this](const auto & inner_guard_conditions)
{
for (const auto & guard_condition : inner_guard_conditions) {
if (!guard_condition) {
auto guard_condition_ptr_pair = get_raw_pointer_from_smart_pointer(guard_condition);
if (nullptr == guard_condition_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -282,10 +285,10 @@ protected:
}
rcl_ret_t ret = rcl_wait_set_add_guard_condition(
&rcl_wait_set_,
&guard_condition->get_rcl_guard_condition(),
&guard_condition_ptr_pair.second->get_rcl_guard_condition(),
nullptr);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Couldn't fill wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
}
};
@@ -298,7 +301,8 @@ protected:
// Add timers.
for (const auto & timer : timers) {
if (!timer) {
auto timer_ptr_pair = get_raw_pointer_from_smart_pointer(timer);
if (nullptr == timer_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -311,16 +315,17 @@ protected:
}
rcl_ret_t ret = rcl_wait_set_add_timer(
&rcl_wait_set_,
timer->get_timer_handle().get(),
timer_ptr_pair.second->get_timer_handle().get(),
nullptr);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Couldn't fill wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
}
// Add clients.
for (const auto & client : clients) {
if (!client) {
auto client_ptr_pair = get_raw_pointer_from_smart_pointer(client);
if (nullptr == client_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -333,17 +338,17 @@ protected:
}
rcl_ret_t ret = rcl_wait_set_add_client(
&rcl_wait_set_,
client->get_client_handle().get(),
client_ptr_pair.second->get_client_handle().get(),
nullptr);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret);
}
}
// Add services.
for (const auto & service : services) {
if (!service) {
auto service_ptr_pair = get_raw_pointer_from_smart_pointer(service);
if (nullptr == service_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -356,16 +361,17 @@ protected:
}
rcl_ret_t ret = rcl_wait_set_add_service(
&rcl_wait_set_,
service->get_service_handle().get(),
service_ptr_pair.second->get_service_handle().get(),
nullptr);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(ret, "Couldn't fill wait set");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
}
// Add waitables.
for (auto & waitable_entry : waitables) {
if (!waitable_entry.waitable) {
auto waitable_ptr_pair = get_raw_pointer_from_smart_pointer(waitable_entry.waitable);
if (nullptr == waitable_ptr_pair.second) {
// In this case it was probably stored as a weak_ptr, but is now locking to nullptr.
if (HasStrongOwnership) {
// This will not happen in fixed sized storage, as it holds
@@ -376,7 +382,8 @@ protected:
needs_pruning_ = true;
continue;
}
waitable_entry.waitable->add_to_wait_set(&rcl_wait_set_);
rclcpp::Waitable & waitable = *waitable_ptr_pair.second;
waitable.add_to_wait_set(&rcl_wait_set_);
}
}

View File

@@ -204,19 +204,15 @@ public:
void
storage_rebuild_rcl_wait_set(const ArrayOfExtraGuardConditions & extra_guard_conditions)
{
this->storage_acquire_ownerships();
this->storage_rebuild_rcl_wait_set_with_sets(
shared_subscriptions_,
shared_guard_conditions_,
subscriptions_,
guard_conditions_,
extra_guard_conditions,
shared_timers_,
shared_clients_,
shared_services_,
shared_waitables_
timers_,
clients_,
services_,
waitables_
);
this->storage_release_ownerships();
}
template<class EntityT, class SequenceOfEntitiesT>
@@ -411,7 +407,6 @@ public:
}
};
// Lock all the weak pointers and hold them until released.
lock_all(subscriptions_, shared_subscriptions_);
lock_all(guard_conditions_, shared_guard_conditions_);
lock_all(timers_, shared_timers_);
lock_all(clients_, shared_clients_);
@@ -443,7 +438,6 @@ public:
shared_ptr.reset();
}
};
reset_all(shared_subscriptions_);
reset_all(shared_guard_conditions_);
reset_all(shared_timers_);
reset_all(shared_clients_);

View File

@@ -290,7 +290,7 @@ protected:
return create_wait_result(WaitResultKind::Empty);
} else {
// Some other error case, throw.
rclcpp::exceptions::throw_from_rcl_error(ret, "rcl_wait() failed");
rclcpp::exceptions::throw_from_rcl_error(ret);
}
} while (should_loop());

View File

@@ -516,7 +516,7 @@ public:
* the waitable to be removed, but it will cause the associated entity pointer
* to be nullptr when introspecting this waitable after waiting.
*
* Note that rclcpp::EventHandlerBase is just a special case of
* Note that rclcpp::QOSEventHandlerBase are just a special case of
* rclcpp::Waitable and can be added with this function.
*
* \param[in] waitable Waitable to be added.

View File

@@ -2,7 +2,7 @@
<?xml-model href="http://download.ros.org/schema/package_format2.xsd" schematypens="http://www.w3.org/2001/XMLSchema"?>
<package format="2">
<name>rclcpp</name>
<version>20.0.0</version>
<version>17.1.0</version>
<description>The ROS client library in C++.</description>
<maintainer email="ivanpauno@ekumenlabs.com">Ivan Paunovic</maintainer>
@@ -39,7 +39,6 @@
<depend>rcpputils</depend>
<depend>rcutils</depend>
<depend>rmw</depend>
<depend>rosidl_dynamic_typesupport</depend>
<depend>statistics_msgs</depend>
<depend>tracetools</depend>

View File

@@ -124,7 +124,7 @@ def get_rclcpp_suffix_from_features(features):
) \
do { \
static_assert( \
::std::is_same<typename std::remove_cv_t<typename std::remove_reference_t<decltype(logger)>>, \
::std::is_same<typename std::remove_cv<typename std::remove_reference<decltype(logger)>::type>::type, \
typename ::rclcpp::Logger>::value, \
"First argument to logging macros must be an rclcpp::Logger"); \
@[ if 'throttle' in feature_combination]@ \

View File

@@ -16,16 +16,13 @@
using rclcpp::AnyExecutable;
RCLCPP_PUBLIC
AnyExecutable::AnyExecutable()
: subscription(nullptr),
timer(nullptr),
service(nullptr),
client(nullptr),
waitable(nullptr),
callback_group(nullptr),
node_base(nullptr),
data(nullptr)
node_base(nullptr)
{}
AnyExecutable::~AnyExecutable()

View File

@@ -31,12 +31,10 @@ using rclcpp::CallbackGroupType;
CallbackGroup::CallbackGroup(
CallbackGroupType group_type,
std::function<rclcpp::Context::SharedPtr(void)> get_context,
bool automatically_add_to_executor_with_node)
: type_(group_type), associated_with_executor_(false),
can_be_taken_from_(true),
automatically_add_to_executor_with_node_(automatically_add_to_executor_with_node),
get_context_(get_context)
automatically_add_to_executor_with_node_(automatically_add_to_executor_with_node)
{}
CallbackGroup::~CallbackGroup()
@@ -56,17 +54,6 @@ CallbackGroup::type() const
return type_;
}
size_t
CallbackGroup::size() const
{
return
subscription_ptrs_.size() +
service_ptrs_.size() +
client_ptrs_.size() +
timer_ptrs_.size() +
waitable_ptrs_.size();
}
void CallbackGroup::collect_all_ptrs(
std::function<void(const rclcpp::SubscriptionBase::SharedPtr &)> sub_func,
std::function<void(const rclcpp::ServiceBase::SharedPtr &)> service_func,
@@ -124,7 +111,6 @@ CallbackGroup::automatically_add_to_executor_with_node() const
return automatically_add_to_executor_with_node_;
}
// \TODO(mjcarroll) Deprecated, remove on tock
rclcpp::GuardCondition::SharedPtr
CallbackGroup::get_notify_guard_condition(const rclcpp::Context::SharedPtr context_ptr)
{
@@ -143,29 +129,6 @@ CallbackGroup::get_notify_guard_condition(const rclcpp::Context::SharedPtr conte
return notify_guard_condition_;
}
rclcpp::GuardCondition::SharedPtr
CallbackGroup::get_notify_guard_condition()
{
std::lock_guard<std::recursive_mutex> lock(notify_guard_condition_mutex_);
if (!this->get_context_) {
throw std::runtime_error("Callback group was created without context and not passed context");
}
auto context_ptr = this->get_context_();
if (context_ptr && context_ptr->is_valid()) {
if (notify_guard_condition_ && context_ptr != notify_guard_condition_->get_context()) {
if (associated_with_executor_) {
trigger_notify_guard_condition();
}
notify_guard_condition_ = nullptr;
}
if (!notify_guard_condition_) {
notify_guard_condition_ = std::make_shared<rclcpp::GuardCondition>(context_ptr);
}
return notify_guard_condition_;
}
return nullptr;
}
void
CallbackGroup::trigger_notify_guard_condition()
{

View File

@@ -23,11 +23,9 @@
#include "rcl/graph.h"
#include "rcl/node.h"
#include "rcl/wait.h"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/node_interfaces/node_base_interface.hpp"
#include "rclcpp/node_interfaces/node_graph_interface.hpp"
#include "rclcpp/qos.hpp"
#include "rclcpp/utilities.hpp"
#include "rclcpp/logging.hpp"
@@ -243,6 +241,7 @@ ClientBase::set_on_new_response_callback(rcl_event_callback_t callback, const vo
user_data);
if (RCL_RET_OK != ret) {
using rclcpp::exceptions::throw_from_rcl_error;
throw_from_rcl_error(ret, "failed to set the on new response callback for client");
}
}

View File

@@ -182,71 +182,6 @@ Clock::sleep_for(Duration rel_time, Context::SharedPtr context)
return sleep_until(now() + rel_time, context);
}
bool
Clock::started()
{
if (!rcl_clock_valid(get_clock_handle())) {
throw std::runtime_error("clock is not rcl_clock_valid");
}
return rcl_clock_time_started(get_clock_handle());
}
bool
Clock::wait_until_started(Context::SharedPtr context)
{
if (!context || !context->is_valid()) {
throw std::runtime_error("context cannot be slept with because it's invalid");
}
if (!rcl_clock_valid(get_clock_handle())) {
throw std::runtime_error("clock cannot be waited on as it is not rcl_clock_valid");
}
if (started()) {
return true;
} else {
// Wait until the first non-zero time
return sleep_until(rclcpp::Time(0, 1, get_clock_type()), context);
}
}
bool
Clock::wait_until_started(
const Duration & timeout,
Context::SharedPtr context,
const Duration & wait_tick_ns)
{
if (!context || !context->is_valid()) {
throw std::runtime_error("context cannot be slept with because it's invalid");
}
if (!rcl_clock_valid(get_clock_handle())) {
throw std::runtime_error("clock cannot be waited on as it is not rcl_clock_valid");
}
Clock timeout_clock = Clock(RCL_STEADY_TIME);
Time start = timeout_clock.now();
// Check if the clock has started every wait_tick_ns nanoseconds
// Context check checks for rclcpp::shutdown()
while (!started() && context->is_valid()) {
if (timeout < wait_tick_ns) {
timeout_clock.sleep_for(timeout);
} else {
Duration time_left = start + timeout - timeout_clock.now();
if (time_left > wait_tick_ns) {
timeout_clock.sleep_for(Duration(wait_tick_ns));
} else {
timeout_clock.sleep_for(time_left);
}
}
if (timeout_clock.now() - start > timeout) {
return started();
}
}
return started();
}
bool
Clock::ros_time_is_active()
{

View File

@@ -219,7 +219,7 @@ Context::init(
if (0u == count) {
ret = rcl_logging_configure_with_output_handler(
&rcl_context_->global_arguments,
rcl_init_options_get_allocator(init_options.get_rcl_init_options()),
rcl_init_options_get_allocator(init_options_.get_rcl_init_options()),
rclcpp_logging_output_handler);
if (RCL_RET_OK != ret) {
rcl_context_.reset();
@@ -365,45 +365,49 @@ Context::on_shutdown(OnShutdownCallback callback)
rclcpp::OnShutdownCallbackHandle
Context::add_on_shutdown_callback(OnShutdownCallback callback)
{
return add_shutdown_callback<ShutdownType::on_shutdown>(callback);
return add_shutdown_callback(ShutdownType::on_shutdown, callback);
}
bool
Context::remove_on_shutdown_callback(const OnShutdownCallbackHandle & callback_handle)
{
return remove_shutdown_callback<ShutdownType::on_shutdown>(callback_handle);
return remove_shutdown_callback(ShutdownType::on_shutdown, callback_handle);
}
rclcpp::PreShutdownCallbackHandle
Context::add_pre_shutdown_callback(PreShutdownCallback callback)
{
return add_shutdown_callback<ShutdownType::pre_shutdown>(callback);
return add_shutdown_callback(ShutdownType::pre_shutdown, callback);
}
bool
Context::remove_pre_shutdown_callback(
const PreShutdownCallbackHandle & callback_handle)
{
return remove_shutdown_callback<ShutdownType::pre_shutdown>(callback_handle);
return remove_shutdown_callback(ShutdownType::pre_shutdown, callback_handle);
}
template<Context::ShutdownType shutdown_type>
rclcpp::ShutdownCallbackHandle
Context::add_shutdown_callback(
ShutdownType shutdown_type,
ShutdownCallback callback)
{
auto callback_shared_ptr =
std::make_shared<ShutdownCallbackHandle::ShutdownCallbackType>(callback);
static_assert(
shutdown_type == ShutdownType::pre_shutdown || shutdown_type == ShutdownType::on_shutdown);
if constexpr (shutdown_type == ShutdownType::pre_shutdown) {
std::lock_guard<std::mutex> lock(pre_shutdown_callbacks_mutex_);
pre_shutdown_callbacks_.emplace_back(callback_shared_ptr);
} else {
std::lock_guard<std::mutex> lock(on_shutdown_callbacks_mutex_);
on_shutdown_callbacks_.emplace_back(callback_shared_ptr);
switch (shutdown_type) {
case ShutdownType::pre_shutdown:
{
std::lock_guard<std::mutex> lock(pre_shutdown_callbacks_mutex_);
pre_shutdown_callbacks_.emplace(callback_shared_ptr);
}
break;
case ShutdownType::on_shutdown:
{
std::lock_guard<std::mutex> lock(on_shutdown_callbacks_mutex_);
on_shutdown_callbacks_.emplace(callback_shared_ptr);
}
break;
}
ShutdownCallbackHandle callback_handle;
@@ -411,74 +415,73 @@ Context::add_shutdown_callback(
return callback_handle;
}
template<Context::ShutdownType shutdown_type>
bool
Context::remove_shutdown_callback(
ShutdownType shutdown_type,
const ShutdownCallbackHandle & callback_handle)
{
const auto callback_shared_ptr = callback_handle.callback.lock();
std::mutex * mutex_ptr = nullptr;
std::unordered_set<
std::shared_ptr<ShutdownCallbackHandle::ShutdownCallbackType>> * callback_list_ptr;
switch (shutdown_type) {
case ShutdownType::pre_shutdown:
mutex_ptr = &pre_shutdown_callbacks_mutex_;
callback_list_ptr = &pre_shutdown_callbacks_;
break;
case ShutdownType::on_shutdown:
mutex_ptr = &on_shutdown_callbacks_mutex_;
callback_list_ptr = &on_shutdown_callbacks_;
break;
}
std::lock_guard<std::mutex> lock(*mutex_ptr);
auto callback_shared_ptr = callback_handle.callback.lock();
if (callback_shared_ptr == nullptr) {
return false;
}
const auto remove_callback = [&callback_shared_ptr](auto & mutex, auto & callback_vector) {
const std::lock_guard<std::mutex> lock(mutex);
auto iter = callback_vector.begin();
for (; iter != callback_vector.end(); iter++) {
if ((*iter).get() == callback_shared_ptr.get()) {
break;
}
}
if (iter == callback_vector.end()) {
return false;
}
callback_vector.erase(iter);
return true;
};
static_assert(
shutdown_type == ShutdownType::pre_shutdown || shutdown_type == ShutdownType::on_shutdown);
if constexpr (shutdown_type == ShutdownType::pre_shutdown) {
return remove_callback(pre_shutdown_callbacks_mutex_, pre_shutdown_callbacks_);
} else {
return remove_callback(on_shutdown_callbacks_mutex_, on_shutdown_callbacks_);
}
return callback_list_ptr->erase(callback_shared_ptr) == 1;
}
std::vector<rclcpp::Context::OnShutdownCallback>
Context::get_on_shutdown_callbacks() const
{
return get_shutdown_callback<ShutdownType::on_shutdown>();
return get_shutdown_callback(ShutdownType::on_shutdown);
}
std::vector<rclcpp::Context::PreShutdownCallback>
Context::get_pre_shutdown_callbacks() const
{
return get_shutdown_callback<ShutdownType::pre_shutdown>();
return get_shutdown_callback(ShutdownType::pre_shutdown);
}
template<Context::ShutdownType shutdown_type>
std::vector<rclcpp::Context::ShutdownCallback>
Context::get_shutdown_callback() const
Context::get_shutdown_callback(ShutdownType shutdown_type) const
{
const auto get_callback_vector = [this](auto & mutex, auto & callback_set) {
const std::lock_guard<std::mutex> lock(mutex);
std::vector<rclcpp::Context::ShutdownCallback> callbacks;
for (auto & callback : callback_set) {
callbacks.push_back(*callback);
}
return callbacks;
};
std::mutex * mutex_ptr = nullptr;
const std::unordered_set<
std::shared_ptr<ShutdownCallbackHandle::ShutdownCallbackType>> * callback_list_ptr;
static_assert(
shutdown_type == ShutdownType::pre_shutdown || shutdown_type == ShutdownType::on_shutdown);
if constexpr (shutdown_type == ShutdownType::pre_shutdown) {
return get_callback_vector(pre_shutdown_callbacks_mutex_, pre_shutdown_callbacks_);
} else {
return get_callback_vector(on_shutdown_callbacks_mutex_, on_shutdown_callbacks_);
switch (shutdown_type) {
case ShutdownType::pre_shutdown:
mutex_ptr = &pre_shutdown_callbacks_mutex_;
callback_list_ptr = &pre_shutdown_callbacks_;
break;
case ShutdownType::on_shutdown:
mutex_ptr = &on_shutdown_callbacks_mutex_;
callback_list_ptr = &on_shutdown_callbacks_;
break;
}
std::vector<rclcpp::Context::ShutdownCallback> callbacks;
{
std::lock_guard<std::mutex> lock(*mutex_ptr);
for (auto & iter : *callback_list_ptr) {
callbacks.emplace_back(*iter);
}
}
return callbacks;
}
std::shared_ptr<rcl_context_t>

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@@ -1,40 +0,0 @@
// Copyright 2023 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.
#include <rosidl_dynamic_typesupport/api/dynamic_type.h>
#include <rosidl_dynamic_typesupport/api/dynamic_data.h>
#include <rosidl_dynamic_typesupport/api/serialization_support.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rcl/allocator.h"
#include "rcl/types.h"
#include "rcutils/logging_macros.h"
#include "rclcpp/dynamic_typesupport/dynamic_message.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type_builder.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/exceptions.hpp"
using rclcpp::dynamic_typesupport::DynamicMessage;
using rclcpp::dynamic_typesupport::DynamicMessageType;
using rclcpp::dynamic_typesupport::DynamicMessageTypeBuilder;
using rclcpp::dynamic_typesupport::DynamicSerializationSupport;
DynamicMessage::~DynamicMessage()
{} // STUBBED

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@@ -1,38 +0,0 @@
// Copyright 2023 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.
#include <rosidl_dynamic_typesupport/api/dynamic_data.h>
#include <rosidl_dynamic_typesupport/api/dynamic_type.h>
#include <rosidl_dynamic_typesupport/api/serialization_support.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rcutils/logging_macros.h"
#include "rclcpp/dynamic_typesupport/dynamic_message.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type_builder.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/exceptions.hpp"
using rclcpp::dynamic_typesupport::DynamicMessage;
using rclcpp::dynamic_typesupport::DynamicMessageType;
using rclcpp::dynamic_typesupport::DynamicMessageTypeBuilder;
using rclcpp::dynamic_typesupport::DynamicSerializationSupport;
DynamicMessageType::~DynamicMessageType()
{} // STUBBED

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@@ -1,37 +0,0 @@
// Copyright 2023 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.
#include <rosidl_dynamic_typesupport/api/dynamic_data.h>
#include <rosidl_dynamic_typesupport/api/dynamic_type.h>
#include <rosidl_dynamic_typesupport/api/serialization_support.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <memory>
#include <string>
#include "rcutils/logging_macros.h"
#include "rclcpp/dynamic_typesupport/dynamic_message.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type_builder.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/exceptions.hpp"
using rclcpp::dynamic_typesupport::DynamicMessage;
using rclcpp::dynamic_typesupport::DynamicMessageType;
using rclcpp::dynamic_typesupport::DynamicMessageTypeBuilder;
using rclcpp::dynamic_typesupport::DynamicSerializationSupport;
DynamicMessageTypeBuilder::~DynamicMessageTypeBuilder()
{} // STUBBED

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@@ -1,49 +0,0 @@
// Copyright 2023 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.
#include <rosidl_dynamic_typesupport/identifier.h>
#include <rosidl_dynamic_typesupport/types.h>
#include <rosidl_runtime_c/message_type_support_struct.h>
#include <rosidl_runtime_c/type_description_utils.h>
#include <rosidl_runtime_c/type_description/type_description__functions.h>
#include <rosidl_runtime_c/type_description/type_description__struct.h>
#include <rosidl_runtime_c/type_description/type_source__functions.h>
#include <rosidl_runtime_c/type_description/type_source__struct.h>
#include <memory>
#include <string>
#include "rcl/allocator.h"
#include "rcl/dynamic_message_type_support.h"
#include "rcl/type_hash.h"
#include "rcl/types.h"
#include "rcutils/logging_macros.h"
#include "rcutils/types/rcutils_ret.h"
#include "rmw/dynamic_message_type_support.h"
#include "rclcpp/dynamic_typesupport/dynamic_message.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_message_type_support.hpp"
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/macros.hpp"
#include "rclcpp/visibility_control.hpp"
using rclcpp::dynamic_typesupport::DynamicMessage;
using rclcpp::dynamic_typesupport::DynamicMessageType;
using rclcpp::dynamic_typesupport::DynamicMessageTypeSupport;
using rclcpp::dynamic_typesupport::DynamicSerializationSupport;
DynamicMessageTypeSupport::~DynamicMessageTypeSupport()
{} // STUBBED

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@@ -1,46 +0,0 @@
// Copyright 2023 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.
#include <rcl/allocator.h>
#include <rcutils/logging_macros.h>
#include <rmw/dynamic_message_type_support.h>
#include <rmw/ret_types.h>
#include <rosidl_dynamic_typesupport/api/serialization_support.h>
#include <memory>
#include <string>
#include "rclcpp/dynamic_typesupport/dynamic_serialization_support.hpp"
#include "rclcpp/exceptions.hpp"
using rclcpp::dynamic_typesupport::DynamicSerializationSupport;
// CONSTRUCTION ====================================================================================
DynamicSerializationSupport::DynamicSerializationSupport(rcl_allocator_t allocator)
: DynamicSerializationSupport::DynamicSerializationSupport("", allocator)
{
throw std::runtime_error("Unimplemented");
}
DynamicSerializationSupport::DynamicSerializationSupport(
const std::string & /*serialization_library_name*/,
rcl_allocator_t /*allocator*/)
: rosidl_serialization_support_(
rosidl_dynamic_typesupport_get_zero_initialized_serialization_support())
{
throw std::runtime_error("Unimplemented");
}
DynamicSerializationSupport::~DynamicSerializationSupport()
{} // STUBBED

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@@ -1,228 +0,0 @@
// Copyright 2023 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.
#include "rclcpp/executors/executor_entities_collection.hpp"
namespace rclcpp
{
namespace executors
{
bool ExecutorEntitiesCollection::empty() const
{
return
subscriptions.empty() &&
timers.empty() &&
guard_conditions.empty() &&
clients.empty() &&
services.empty() &&
waitables.empty();
}
void ExecutorEntitiesCollection::clear()
{
subscriptions.clear();
timers.clear();
guard_conditions.clear();
clients.clear();
services.clear();
waitables.clear();
}
void
build_entities_collection(
const std::vector<rclcpp::CallbackGroup::WeakPtr> & callback_groups,
ExecutorEntitiesCollection & collection)
{
collection.clear();
for (auto weak_group_ptr : callback_groups) {
auto group_ptr = weak_group_ptr.lock();
if (!group_ptr) {
continue;
}
if (group_ptr->can_be_taken_from().load()) {
group_ptr->collect_all_ptrs(
[&collection, weak_group_ptr](const rclcpp::SubscriptionBase::SharedPtr & subscription) {
collection.subscriptions.insert(
{
subscription->get_subscription_handle().get(),
{subscription, weak_group_ptr}
});
},
[&collection, weak_group_ptr](const rclcpp::ServiceBase::SharedPtr & service) {
collection.services.insert(
{
service->get_service_handle().get(),
{service, weak_group_ptr}
});
},
[&collection, weak_group_ptr](const rclcpp::ClientBase::SharedPtr & client) {
collection.clients.insert(
{
client->get_client_handle().get(),
{client, weak_group_ptr}
});
},
[&collection, weak_group_ptr](const rclcpp::TimerBase::SharedPtr & timer) {
collection.timers.insert(
{
timer->get_timer_handle().get(),
{timer, weak_group_ptr}
});
},
[&collection, weak_group_ptr](const rclcpp::Waitable::SharedPtr & waitable) {
collection.waitables.insert(
{
waitable.get(),
{waitable, weak_group_ptr}
});
}
);
}
}
}
size_t
ready_executables(
const ExecutorEntitiesCollection & collection,
rclcpp::WaitResult<rclcpp::WaitSet> & wait_result,
std::deque<rclcpp::AnyExecutable> & executables
)
{
size_t added = 0;
if (wait_result.kind() != rclcpp::WaitResultKind::Ready) {
return added;
}
auto rcl_wait_set = wait_result.get_wait_set().get_rcl_wait_set();
// Cache shared pointers to groups to avoid extra work re-locking them
std::map<rclcpp::CallbackGroup::WeakPtr,
rclcpp::CallbackGroup::SharedPtr,
std::owner_less<rclcpp::CallbackGroup::WeakPtr>> group_map;
auto group_cache = [&group_map](const rclcpp::CallbackGroup::WeakPtr & weak_cbg_ptr)
{
if (group_map.count(weak_cbg_ptr) == 0) {
group_map.insert({weak_cbg_ptr, weak_cbg_ptr.lock()});
}
return group_map.find(weak_cbg_ptr)->second;
};
for (size_t ii = 0; ii < rcl_wait_set.size_of_timers; ++ii) {
if (nullptr == rcl_wait_set.timers[ii]) {continue;}
auto entity_iter = collection.timers.find(rcl_wait_set.timers[ii]);
if (entity_iter != collection.timers.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
auto group_info = group_cache(entity_iter->second.callback_group);
if (group_info && !group_info->can_be_taken_from().load()) {
continue;
}
if (!entity->call()) {
continue;
}
rclcpp::AnyExecutable exec;
exec.timer = entity;
exec.callback_group = group_info;
executables.push_back(exec);
added++;
}
}
for (size_t ii = 0; ii < rcl_wait_set.size_of_subscriptions; ++ii) {
if (nullptr == rcl_wait_set.subscriptions[ii]) {continue;}
auto entity_iter = collection.subscriptions.find(rcl_wait_set.subscriptions[ii]);
if (entity_iter != collection.subscriptions.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
auto group_info = group_cache(entity_iter->second.callback_group);
if (group_info && !group_info->can_be_taken_from().load()) {
continue;
}
rclcpp::AnyExecutable exec;
exec.subscription = entity;
exec.callback_group = group_info;
executables.push_back(exec);
added++;
}
}
for (size_t ii = 0; ii < rcl_wait_set.size_of_services; ++ii) {
if (nullptr == rcl_wait_set.services[ii]) {continue;}
auto entity_iter = collection.services.find(rcl_wait_set.services[ii]);
if (entity_iter != collection.services.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
auto group_info = group_cache(entity_iter->second.callback_group);
if (group_info && !group_info->can_be_taken_from().load()) {
continue;
}
rclcpp::AnyExecutable exec;
exec.service = entity;
exec.callback_group = group_info;
executables.push_back(exec);
added++;
}
}
for (size_t ii = 0; ii < rcl_wait_set.size_of_clients; ++ii) {
if (nullptr == rcl_wait_set.clients[ii]) {continue;}
auto entity_iter = collection.clients.find(rcl_wait_set.clients[ii]);
if (entity_iter != collection.clients.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
auto group_info = group_cache(entity_iter->second.callback_group);
if (group_info && !group_info->can_be_taken_from().load()) {
continue;
}
rclcpp::AnyExecutable exec;
exec.client = entity;
exec.callback_group = group_info;
executables.push_back(exec);
added++;
}
}
for (auto & [handle, entry] : collection.waitables) {
auto waitable = entry.entity.lock();
if (!waitable) {
continue;
}
if (!waitable->is_ready(&rcl_wait_set)) {
continue;
}
auto group_info = group_cache(entry.callback_group);
if (group_info && !group_info->can_be_taken_from().load()) {
continue;
}
rclcpp::AnyExecutable exec;
exec.waitable = waitable;
exec.callback_group = group_info;
exec.data = waitable->take_data();
executables.push_back(exec);
added++;
}
return added;
}
} // namespace executors
} // namespace rclcpp

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@@ -1,420 +0,0 @@
// Copyright 2023 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.
#include <set>
#include "rclcpp/executors/executor_entities_collector.hpp"
#include "rclcpp/executors/executor_notify_waitable.hpp"
#include "rclcpp/node_interfaces/node_base_interface.hpp"
namespace rclcpp
{
namespace executors
{
ExecutorEntitiesCollector::ExecutorEntitiesCollector(
std::shared_ptr<ExecutorNotifyWaitable> notify_waitable)
: notify_waitable_(notify_waitable)
{
}
ExecutorEntitiesCollector::~ExecutorEntitiesCollector()
{
for (auto weak_node_it = weak_nodes_.begin(); weak_node_it != weak_nodes_.end(); ) {
weak_node_it = remove_weak_node(weak_node_it);
}
for (auto weak_group_it = automatically_added_groups_.begin();
weak_group_it != automatically_added_groups_.end(); )
{
weak_group_it = remove_weak_callback_group(weak_group_it, automatically_added_groups_);
}
for (auto weak_group_it = manually_added_groups_.begin();
weak_group_it != manually_added_groups_.end(); )
{
weak_group_it = remove_weak_callback_group(weak_group_it, manually_added_groups_);
}
for (auto weak_node_ptr : pending_added_nodes_) {
auto node_ptr = weak_node_ptr.lock();
if (node_ptr) {
node_ptr->get_associated_with_executor_atomic().store(false);
}
}
pending_added_nodes_.clear();
pending_removed_nodes_.clear();
for (auto weak_group_ptr : pending_manually_added_groups_) {
auto group_ptr = weak_group_ptr.lock();
if (group_ptr) {
group_ptr->get_associated_with_executor_atomic().store(false);
}
}
pending_manually_added_groups_.clear();
pending_manually_removed_groups_.clear();
}
bool
ExecutorEntitiesCollector::has_pending() const
{
std::lock_guard<std::mutex> lock(mutex_);
return pending_manually_added_groups_.size() != 0 ||
pending_manually_removed_groups_.size() != 0 ||
pending_added_nodes_.size() != 0 ||
pending_removed_nodes_.size() != 0;
}
void
ExecutorEntitiesCollector::add_node(rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr)
{
// If the node already has an executor
std::atomic_bool & has_executor = node_ptr->get_associated_with_executor_atomic();
if (has_executor.exchange(true)) {
throw std::runtime_error(
std::string("Node '") + node_ptr->get_fully_qualified_name() +
"' has already been added to an executor.");
}
std::lock_guard<std::mutex> lock(mutex_);
bool associated = weak_nodes_.count(node_ptr) != 0;
bool add_queued = pending_added_nodes_.count(node_ptr) != 0;
bool remove_queued = pending_removed_nodes_.count(node_ptr) != 0;
if ((associated || add_queued) && !remove_queued) {
throw std::runtime_error(
std::string("Node '") + node_ptr->get_fully_qualified_name() +
"' has already been added to this executor.");
}
this->pending_added_nodes_.insert(node_ptr);
}
void
ExecutorEntitiesCollector::remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr)
{
std::atomic_bool & has_executor = node_ptr->get_associated_with_executor_atomic();
if (!has_executor.exchange(false)) {
throw std::runtime_error(
std::string("Node '") + node_ptr->get_fully_qualified_name() +
"' needs to be associated with an executor.");
}
std::lock_guard<std::mutex> lock(mutex_);
bool associated = weak_nodes_.count(node_ptr) != 0;
bool add_queued = pending_added_nodes_.count(node_ptr) != 0;
bool remove_queued = pending_removed_nodes_.count(node_ptr) != 0;
if (!(associated || add_queued) || remove_queued) {
throw std::runtime_error(
std::string("Node '") + node_ptr->get_fully_qualified_name() +
"' needs to be associated with this executor.");
}
this->pending_removed_nodes_.insert(node_ptr);
}
void
ExecutorEntitiesCollector::add_callback_group(rclcpp::CallbackGroup::SharedPtr group_ptr)
{
std::atomic_bool & has_executor = group_ptr->get_associated_with_executor_atomic();
if (has_executor.exchange(true)) {
throw std::runtime_error("Callback group has already been added to an executor.");
}
std::lock_guard<std::mutex> lock(mutex_);
bool associated = manually_added_groups_.count(group_ptr) != 0;
bool add_queued = pending_manually_added_groups_.count(group_ptr) != 0;
bool remove_queued = pending_manually_removed_groups_.count(group_ptr) != 0;
if ((associated || add_queued) && !remove_queued) {
throw std::runtime_error("Callback group has already been added to this executor.");
}
this->pending_manually_added_groups_.insert(group_ptr);
}
void
ExecutorEntitiesCollector::remove_callback_group(rclcpp::CallbackGroup::SharedPtr group_ptr)
{
if (!group_ptr->get_associated_with_executor_atomic().load()) {
throw std::runtime_error("Callback group needs to be associated with an executor.");
}
/**
* TODO(mjcarroll): The callback groups, being created by a node, should never outlive
* the node. Since we haven't historically enforced this, turning this on may cause
* previously-functional code to fail.
* Consider re-enablng this check (along with corresponding CallbackGroup::has_valid_node),
* when we can guarantee node/group lifetimes.
if (!group_ptr->has_valid_node()) {
throw std::runtime_error("Node must not be deleted before its callback group(s).");
}
*/
auto weak_group_ptr = rclcpp::CallbackGroup::WeakPtr(group_ptr);
std::lock_guard<std::mutex> lock(mutex_);
bool associated = manually_added_groups_.count(group_ptr) != 0;
bool add_queued = pending_manually_added_groups_.count(group_ptr) != 0;
bool remove_queued = pending_manually_removed_groups_.count(group_ptr) != 0;
if (!(associated || add_queued) || remove_queued) {
throw std::runtime_error("Callback group needs to be associated with this executor.");
}
this->pending_manually_removed_groups_.insert(group_ptr);
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
ExecutorEntitiesCollector::get_all_callback_groups() const
{
std::vector<rclcpp::CallbackGroup::WeakPtr> groups;
std::lock_guard<std::mutex> lock(mutex_);
for (const auto & group_ptr : manually_added_groups_) {
groups.push_back(group_ptr);
}
for (auto const & group_ptr : automatically_added_groups_) {
groups.push_back(group_ptr);
}
return groups;
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
ExecutorEntitiesCollector::get_manually_added_callback_groups() const
{
std::vector<rclcpp::CallbackGroup::WeakPtr> groups;
std::lock_guard<std::mutex> lock(mutex_);
for (const auto & group_ptr : manually_added_groups_) {
groups.push_back(group_ptr);
}
return groups;
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
ExecutorEntitiesCollector::get_automatically_added_callback_groups() const
{
std::vector<rclcpp::CallbackGroup::WeakPtr> groups;
std::lock_guard<std::mutex> lock(mutex_);
for (auto const & group_ptr : automatically_added_groups_) {
groups.push_back(group_ptr);
}
return groups;
}
void
ExecutorEntitiesCollector::update_collections()
{
std::lock_guard<std::mutex> lock(mutex_);
this->process_queues();
this->add_automatically_associated_callback_groups(this->weak_nodes_);
this->prune_invalid_nodes_and_groups();
}
ExecutorEntitiesCollector::NodeCollection::iterator
ExecutorEntitiesCollector::remove_weak_node(NodeCollection::iterator weak_node)
{
// Disassociate the guard condition from the executor notify waitable
auto guard_condition_it = weak_nodes_to_guard_conditions_.find(*weak_node);
if (guard_condition_it != weak_nodes_to_guard_conditions_.end()) {
this->notify_waitable_->remove_guard_condition(guard_condition_it->second);
weak_nodes_to_guard_conditions_.erase(guard_condition_it);
}
// Mark the node as disassociated (if the node is still valid)
auto node_ptr = weak_node->lock();
if (node_ptr) {
std::atomic_bool & has_executor = node_ptr->get_associated_with_executor_atomic();
has_executor.store(false);
}
// Remove the node from tracked nodes
return weak_nodes_.erase(weak_node);
}
ExecutorEntitiesCollector::CallbackGroupCollection::iterator
ExecutorEntitiesCollector::remove_weak_callback_group(
CallbackGroupCollection::iterator weak_group_it,
CallbackGroupCollection & collection
)
{
// Disassociate the guard condition from the executor notify waitable
auto guard_condition_it = weak_groups_to_guard_conditions_.find(*weak_group_it);
if (guard_condition_it != weak_groups_to_guard_conditions_.end()) {
this->notify_waitable_->remove_guard_condition(guard_condition_it->second);
weak_groups_to_guard_conditions_.erase(guard_condition_it);
}
// Mark the node as disassociated (if the group is still valid)
auto group_ptr = weak_group_it->lock();
if (group_ptr) {
/**
* TODO(mjcarroll): The callback groups, being created by a node, should never outlive
* the node. Since we haven't historically enforced this, turning this on may cause
* previously-functional code to fail.
* Consider re-enablng this check (along with corresponding CallbackGroup::has_valid_node),
* when we can guarantee node/group lifetimes.
if (!group_ptr->has_valid_node()) {
throw std::runtime_error("Node must not be deleted before its callback group(s).");
}
*/
std::atomic_bool & has_executor = group_ptr->get_associated_with_executor_atomic();
has_executor.store(false);
}
// Remove the node from tracked nodes
return collection.erase(weak_group_it);
}
void
ExecutorEntitiesCollector::add_callback_group_to_collection(
rclcpp::CallbackGroup::SharedPtr group_ptr,
CallbackGroupCollection & collection)
{
auto iter = collection.insert(group_ptr);
if (iter.second == false) {
throw std::runtime_error("Callback group has already been added to this executor.");
}
// Store node guard condition in map and add it to the notify waitable
auto group_guard_condition = group_ptr->get_notify_guard_condition();
weak_groups_to_guard_conditions_.insert({group_ptr, group_guard_condition});
this->notify_waitable_->add_guard_condition(group_guard_condition);
}
void
ExecutorEntitiesCollector::process_queues()
{
for (auto weak_node_ptr : pending_added_nodes_) {
auto node_ptr = weak_node_ptr.lock();
if (!node_ptr) {
continue;
}
weak_nodes_.insert(weak_node_ptr);
this->add_automatically_associated_callback_groups({weak_node_ptr});
// Store node guard condition in map and add it to the notify waitable
auto node_guard_condition = node_ptr->get_shared_notify_guard_condition();
weak_nodes_to_guard_conditions_.insert({weak_node_ptr, node_guard_condition});
this->notify_waitable_->add_guard_condition(node_guard_condition);
}
pending_added_nodes_.clear();
for (auto weak_node_ptr : pending_removed_nodes_) {
auto node_it = weak_nodes_.find(weak_node_ptr);
if (node_it != weak_nodes_.end()) {
remove_weak_node(node_it);
} else {
// The node may have been destroyed and removed from the colletion before
// we processed the queues. Don't throw if the pointer is already expired.
if (!weak_node_ptr.expired()) {
throw std::runtime_error("Node needs to be associated with this executor.");
}
}
auto node_ptr = weak_node_ptr.lock();
if (node_ptr) {
for (auto group_it = automatically_added_groups_.begin();
group_it != automatically_added_groups_.end(); )
{
auto group_ptr = group_it->lock();
if (node_ptr->callback_group_in_node(group_ptr)) {
group_it = remove_weak_callback_group(group_it, automatically_added_groups_);
} else {
++group_it;
}
}
}
}
pending_removed_nodes_.clear();
for (auto weak_group_ptr : pending_manually_added_groups_) {
auto group_ptr = weak_group_ptr.lock();
if (group_ptr) {
this->add_callback_group_to_collection(group_ptr, manually_added_groups_);
}
}
pending_manually_added_groups_.clear();
for (auto weak_group_ptr : pending_manually_removed_groups_) {
auto group_ptr = weak_group_ptr.lock();
if (group_ptr) {
auto group_it = manually_added_groups_.find(group_ptr);
if (group_it != manually_added_groups_.end()) {
remove_weak_callback_group(group_it, manually_added_groups_);
} else {
throw std::runtime_error(
"Attempting to remove a callback group not added to this executor.");
}
}
}
pending_manually_removed_groups_.clear();
}
void
ExecutorEntitiesCollector::add_automatically_associated_callback_groups(
const NodeCollection & nodes_to_check)
{
for (auto & weak_node : nodes_to_check) {
auto node = weak_node.lock();
if (node) {
node->for_each_callback_group(
[this, node](rclcpp::CallbackGroup::SharedPtr group_ptr)
{
if (!group_ptr->get_associated_with_executor_atomic().load() &&
group_ptr->automatically_add_to_executor_with_node())
{
std::atomic_bool & has_executor = group_ptr->get_associated_with_executor_atomic();
if (has_executor.exchange(true)) {
throw std::runtime_error("Callback group has already been added to an executor.");
}
this->add_callback_group_to_collection(group_ptr, this->automatically_added_groups_);
}
});
}
}
}
void
ExecutorEntitiesCollector::prune_invalid_nodes_and_groups()
{
for (auto node_it = weak_nodes_.begin();
node_it != weak_nodes_.end(); )
{
if (node_it->expired()) {
node_it = remove_weak_node(node_it);
} else {
node_it++;
}
}
for (auto group_it = automatically_added_groups_.begin();
group_it != automatically_added_groups_.end(); )
{
if (group_it->expired()) {
group_it = remove_weak_callback_group(group_it, automatically_added_groups_);
} else {
group_it++;
}
}
for (auto group_it = manually_added_groups_.begin();
group_it != manually_added_groups_.end(); )
{
if (group_it->expired()) {
group_it = remove_weak_callback_group(group_it, manually_added_groups_);
} else {
group_it++;
}
}
}
} // namespace executors
} // namespace rclcpp

View File

@@ -1,181 +0,0 @@
// Copyright 2023 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.
#include <iostream>
#include "rclcpp/exceptions.hpp"
#include "rclcpp/executors/executor_notify_waitable.hpp"
namespace rclcpp
{
namespace executors
{
ExecutorNotifyWaitable::ExecutorNotifyWaitable(std::function<void(void)> on_execute_callback)
: execute_callback_(on_execute_callback)
{
}
ExecutorNotifyWaitable::ExecutorNotifyWaitable(const ExecutorNotifyWaitable & other)
: ExecutorNotifyWaitable(other.execute_callback_)
{
this->notify_guard_conditions_ = other.notify_guard_conditions_;
}
ExecutorNotifyWaitable & ExecutorNotifyWaitable::operator=(const ExecutorNotifyWaitable & other)
{
if (this != &other) {
this->execute_callback_ = other.execute_callback_;
this->notify_guard_conditions_ = other.notify_guard_conditions_;
}
return *this;
}
void
ExecutorNotifyWaitable::add_to_wait_set(rcl_wait_set_t * wait_set)
{
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
for (auto weak_guard_condition : this->notify_guard_conditions_) {
auto guard_condition = weak_guard_condition.lock();
if (!guard_condition) {continue;}
rcl_guard_condition_t * cond = &guard_condition->get_rcl_guard_condition();
rcl_ret_t ret = rcl_wait_set_add_guard_condition(
wait_set, cond, NULL);
if (RCL_RET_OK != ret) {
rclcpp::exceptions::throw_from_rcl_error(
ret, "failed to add guard condition to wait set");
}
}
}
bool
ExecutorNotifyWaitable::is_ready(rcl_wait_set_t * wait_set)
{
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
bool any_ready = false;
for (size_t ii = 0; ii < wait_set->size_of_guard_conditions; ++ii) {
auto rcl_guard_condition = wait_set->guard_conditions[ii];
if (nullptr == rcl_guard_condition) {
continue;
}
for (auto weak_guard_condition : this->notify_guard_conditions_) {
auto guard_condition = weak_guard_condition.lock();
if (guard_condition && &guard_condition->get_rcl_guard_condition() == rcl_guard_condition) {
any_ready = true;
}
}
}
return any_ready;
}
void
ExecutorNotifyWaitable::execute(std::shared_ptr<void> & data)
{
(void) data;
this->execute_callback_();
}
std::shared_ptr<void>
ExecutorNotifyWaitable::take_data()
{
return nullptr;
}
std::shared_ptr<void>
ExecutorNotifyWaitable::take_data_by_entity_id(size_t id)
{
(void) id;
return nullptr;
}
void
ExecutorNotifyWaitable::set_on_ready_callback(std::function<void(size_t, int)> callback)
{
// The second argument of the callback could be used to identify which guard condition
// triggered the event.
// We could indicate which of the guard conditions was triggered, but the executor
// is already going to check that.
auto gc_callback = [callback](size_t count) {
callback(count, 0);
};
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
on_ready_callback_ = gc_callback;
for (auto weak_gc : notify_guard_conditions_) {
auto gc = weak_gc.lock();
if (!gc) {
continue;
}
gc->set_on_trigger_callback(on_ready_callback_);
}
}
RCLCPP_PUBLIC
void
ExecutorNotifyWaitable::clear_on_ready_callback()
{
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
on_ready_callback_ = nullptr;
for (auto weak_gc : notify_guard_conditions_) {
auto gc = weak_gc.lock();
if (!gc) {
continue;
}
gc->set_on_trigger_callback(nullptr);
}
}
void
ExecutorNotifyWaitable::add_guard_condition(rclcpp::GuardCondition::WeakPtr weak_guard_condition)
{
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
auto guard_condition = weak_guard_condition.lock();
if (guard_condition && notify_guard_conditions_.count(weak_guard_condition) == 0) {
notify_guard_conditions_.insert(weak_guard_condition);
if (on_ready_callback_) {
guard_condition->set_on_trigger_callback(on_ready_callback_);
}
}
}
void
ExecutorNotifyWaitable::remove_guard_condition(rclcpp::GuardCondition::WeakPtr weak_guard_condition)
{
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
if (notify_guard_conditions_.count(weak_guard_condition) != 0) {
notify_guard_conditions_.erase(weak_guard_condition);
auto guard_condition = weak_guard_condition.lock();
// If this notify waitable doesn't have an on_ready_callback, then there's nothing to unset
if (guard_condition && on_ready_callback_) {
guard_condition->set_on_trigger_callback(nullptr);
}
}
}
size_t
ExecutorNotifyWaitable::get_number_of_ready_guard_conditions()
{
std::lock_guard<std::mutex> lock(guard_condition_mutex_);
return notify_guard_conditions_.size();
}
} // namespace executors
} // namespace rclcpp

View File

@@ -99,19 +99,6 @@ MultiThreadedExecutor::run(size_t this_thread_number)
execute_any_executable(any_exec);
if (any_exec.callback_group &&
any_exec.callback_group->type() == CallbackGroupType::MutuallyExclusive &&
any_exec.callback_group->size() > 1)
{
try {
interrupt_guard_condition_->trigger();
} catch (const rclcpp::exceptions::RCLError & ex) {
throw std::runtime_error(
std::string(
"Failed to trigger guard condition on callback group change: ") + ex.what());
}
}
// Clear the callback_group to prevent the AnyExecutable destructor from
// resetting the callback group `can_be_taken_from`
any_exec.callback_group.reset();

View File

@@ -0,0 +1,524 @@
// Copyright 2020 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.
#include "rclcpp/executors/static_executor_entities_collector.hpp"
#include <algorithm>
#include <memory>
#include <stdexcept>
#include <string>
#include <utility>
#include <vector>
#include "rclcpp/memory_strategy.hpp"
#include "rclcpp/executors/static_single_threaded_executor.hpp"
#include "rclcpp/detail/add_guard_condition_to_rcl_wait_set.hpp"
using rclcpp::executors::StaticExecutorEntitiesCollector;
StaticExecutorEntitiesCollector::~StaticExecutorEntitiesCollector()
{
// Disassociate all callback groups and thus nodes.
for (const auto & pair : weak_groups_associated_with_executor_to_nodes_) {
auto group = pair.first.lock();
if (group) {
std::atomic_bool & has_executor = group->get_associated_with_executor_atomic();
has_executor.store(false);
}
}
for (const auto & pair : weak_groups_to_nodes_associated_with_executor_) {
auto group = pair.first.lock();
if (group) {
std::atomic_bool & has_executor = group->get_associated_with_executor_atomic();
has_executor.store(false);
}
}
// Disassociate all nodes
for (const auto & weak_node : weak_nodes_) {
auto node = weak_node.lock();
if (node) {
std::atomic_bool & has_executor = node->get_associated_with_executor_atomic();
has_executor.store(false);
}
}
weak_groups_associated_with_executor_to_nodes_.clear();
weak_groups_to_nodes_associated_with_executor_.clear();
exec_list_.clear();
weak_nodes_.clear();
weak_nodes_to_guard_conditions_.clear();
}
void
StaticExecutorEntitiesCollector::init(
rcl_wait_set_t * p_wait_set,
rclcpp::memory_strategy::MemoryStrategy::SharedPtr memory_strategy)
{
// Empty initialize executable list
exec_list_ = rclcpp::experimental::ExecutableList();
// Get executor's wait_set_ pointer
p_wait_set_ = p_wait_set;
// Get executor's memory strategy ptr
if (memory_strategy == nullptr) {
throw std::runtime_error("Received NULL memory strategy in executor waitable.");
}
memory_strategy_ = memory_strategy;
// Get memory strategy and executable list. Prepare wait_set_
std::shared_ptr<void> shared_ptr;
execute(shared_ptr);
// The entities collector is now initialized
initialized_ = true;
}
void
StaticExecutorEntitiesCollector::fini()
{
memory_strategy_->clear_handles();
exec_list_.clear();
}
std::shared_ptr<void>
StaticExecutorEntitiesCollector::take_data()
{
return nullptr;
}
void
StaticExecutorEntitiesCollector::execute(std::shared_ptr<void> & data)
{
(void) data;
// Fill memory strategy with entities coming from weak_nodes_
fill_memory_strategy();
// Fill exec_list_ with entities coming from weak_nodes_ (same as memory strategy)
fill_executable_list();
// Resize the wait_set_ based on memory_strategy handles (rcl_wait_set_resize)
prepare_wait_set();
// Add new nodes guard conditions to map
std::lock_guard<std::mutex> guard{new_nodes_mutex_};
for (const auto & weak_node : new_nodes_) {
if (auto node_ptr = weak_node.lock()) {
const auto & gc = node_ptr->get_notify_guard_condition();
weak_nodes_to_guard_conditions_[node_ptr] = &gc;
}
}
new_nodes_.clear();
}
void
StaticExecutorEntitiesCollector::fill_memory_strategy()
{
memory_strategy_->clear_handles();
bool has_invalid_weak_groups_or_nodes =
memory_strategy_->collect_entities(weak_groups_to_nodes_associated_with_executor_);
// Clean up any invalid nodes, if they were detected
if (has_invalid_weak_groups_or_nodes) {
std::vector<rclcpp::CallbackGroup::WeakPtr> invalid_group_ptrs;
for (const auto & pair : weak_groups_to_nodes_associated_with_executor_) {
auto & weak_group_ptr = pair.first;
auto & weak_node_ptr = pair.second;
if (weak_group_ptr.expired() || weak_node_ptr.expired()) {
invalid_group_ptrs.push_back(weak_group_ptr);
}
}
std::for_each(
invalid_group_ptrs.begin(), invalid_group_ptrs.end(),
[this](rclcpp::CallbackGroup::WeakPtr group_ptr) {
weak_groups_to_nodes_associated_with_executor_.erase(group_ptr);
});
}
has_invalid_weak_groups_or_nodes =
memory_strategy_->collect_entities(weak_groups_associated_with_executor_to_nodes_);
// Clean up any invalid nodes, if they were detected
if (has_invalid_weak_groups_or_nodes) {
std::vector<rclcpp::CallbackGroup::WeakPtr> invalid_group_ptrs;
for (const auto & pair : weak_groups_associated_with_executor_to_nodes_) {
auto & weak_group_ptr = pair.first;
const auto & weak_node_ptr = pair.second;
if (weak_group_ptr.expired() || weak_node_ptr.expired()) {
invalid_group_ptrs.push_back(weak_group_ptr);
}
}
std::for_each(
invalid_group_ptrs.begin(), invalid_group_ptrs.end(),
[this](rclcpp::CallbackGroup::WeakPtr group_ptr) {
weak_groups_associated_with_executor_to_nodes_.erase(group_ptr);
});
}
// Add the static executor waitable to the memory strategy
memory_strategy_->add_waitable_handle(this->shared_from_this());
}
void
StaticExecutorEntitiesCollector::fill_executable_list()
{
exec_list_.clear();
add_callback_groups_from_nodes_associated_to_executor();
fill_executable_list_from_map(weak_groups_associated_with_executor_to_nodes_);
fill_executable_list_from_map(weak_groups_to_nodes_associated_with_executor_);
// Add the executor's waitable to the executable list
exec_list_.add_waitable(shared_from_this());
}
void
StaticExecutorEntitiesCollector::fill_executable_list_from_map(
const rclcpp::memory_strategy::MemoryStrategy::WeakCallbackGroupsToNodesMap &
weak_groups_to_nodes)
{
for (const auto & pair : weak_groups_to_nodes) {
auto group = pair.first.lock();
auto node = pair.second.lock();
if (!node || !group || !group->can_be_taken_from().load()) {
continue;
}
group->find_timer_ptrs_if(
[this](const rclcpp::TimerBase::SharedPtr & timer) {
if (timer) {
exec_list_.add_timer(timer);
}
return false;
});
group->find_subscription_ptrs_if(
[this](const rclcpp::SubscriptionBase::SharedPtr & subscription) {
if (subscription) {
exec_list_.add_subscription(subscription);
}
return false;
});
group->find_service_ptrs_if(
[this](const rclcpp::ServiceBase::SharedPtr & service) {
if (service) {
exec_list_.add_service(service);
}
return false;
});
group->find_client_ptrs_if(
[this](const rclcpp::ClientBase::SharedPtr & client) {
if (client) {
exec_list_.add_client(client);
}
return false;
});
group->find_waitable_ptrs_if(
[this](const rclcpp::Waitable::SharedPtr & waitable) {
if (waitable) {
exec_list_.add_waitable(waitable);
}
return false;
});
}
}
void
StaticExecutorEntitiesCollector::prepare_wait_set()
{
// clear wait set
if (rcl_wait_set_clear(p_wait_set_) != RCL_RET_OK) {
throw std::runtime_error("Couldn't clear wait set");
}
// The size of waitables are accounted for in size of the other entities
rcl_ret_t ret = rcl_wait_set_resize(
p_wait_set_, memory_strategy_->number_of_ready_subscriptions(),
memory_strategy_->number_of_guard_conditions(), memory_strategy_->number_of_ready_timers(),
memory_strategy_->number_of_ready_clients(), memory_strategy_->number_of_ready_services(),
memory_strategy_->number_of_ready_events());
if (RCL_RET_OK != ret) {
throw std::runtime_error(
std::string("Couldn't resize the wait set: ") + rcl_get_error_string().str);
}
}
void
StaticExecutorEntitiesCollector::refresh_wait_set(std::chrono::nanoseconds timeout)
{
// clear wait set (memset to '0' all wait_set_ entities
// but keeps the wait_set_ number of entities)
if (rcl_wait_set_clear(p_wait_set_) != RCL_RET_OK) {
throw std::runtime_error("Couldn't clear wait set");
}
if (!memory_strategy_->add_handles_to_wait_set(p_wait_set_)) {
throw std::runtime_error("Couldn't fill wait set");
}
rcl_ret_t status =
rcl_wait(p_wait_set_, std::chrono::duration_cast<std::chrono::nanoseconds>(timeout).count());
if (status == RCL_RET_WAIT_SET_EMPTY) {
RCUTILS_LOG_WARN_NAMED(
"rclcpp",
"empty wait set received in rcl_wait(). This should never happen.");
} else if (status != RCL_RET_OK && status != RCL_RET_TIMEOUT) {
using rclcpp::exceptions::throw_from_rcl_error;
throw_from_rcl_error(status, "rcl_wait() failed");
}
}
void
StaticExecutorEntitiesCollector::add_to_wait_set(rcl_wait_set_t * wait_set)
{
// Add waitable guard conditions (one for each registered node) into the wait set.
for (const auto & pair : weak_nodes_to_guard_conditions_) {
auto & gc = pair.second;
detail::add_guard_condition_to_rcl_wait_set(*wait_set, *gc);
}
}
size_t StaticExecutorEntitiesCollector::get_number_of_ready_guard_conditions()
{
std::lock_guard<std::mutex> guard{new_nodes_mutex_};
return weak_nodes_to_guard_conditions_.size() + new_nodes_.size();
}
bool
StaticExecutorEntitiesCollector::add_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr)
{
bool is_new_node = false;
// If the node already has an executor
std::atomic_bool & has_executor = node_ptr->get_associated_with_executor_atomic();
if (has_executor.exchange(true)) {
throw std::runtime_error("Node has already been added to an executor.");
}
node_ptr->for_each_callback_group(
[this, node_ptr, &is_new_node](rclcpp::CallbackGroup::SharedPtr group_ptr)
{
if (
!group_ptr->get_associated_with_executor_atomic().load() &&
group_ptr->automatically_add_to_executor_with_node())
{
is_new_node = (add_callback_group(
group_ptr,
node_ptr,
weak_groups_to_nodes_associated_with_executor_) ||
is_new_node);
}
});
weak_nodes_.push_back(node_ptr);
return is_new_node;
}
bool
StaticExecutorEntitiesCollector::add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
rclcpp::memory_strategy::MemoryStrategy::WeakCallbackGroupsToNodesMap & weak_groups_to_nodes)
{
// If the callback_group already has an executor
std::atomic_bool & has_executor = group_ptr->get_associated_with_executor_atomic();
if (has_executor.exchange(true)) {
throw std::runtime_error("Callback group has already been added to an executor.");
}
bool is_new_node = !has_node(node_ptr, weak_groups_associated_with_executor_to_nodes_) &&
!has_node(node_ptr, weak_groups_to_nodes_associated_with_executor_);
rclcpp::CallbackGroup::WeakPtr weak_group_ptr = group_ptr;
auto insert_info = weak_groups_to_nodes.insert(
std::make_pair(weak_group_ptr, node_ptr));
bool was_inserted = insert_info.second;
if (!was_inserted) {
throw std::runtime_error("Callback group was already added to executor.");
}
if (is_new_node) {
std::lock_guard<std::mutex> guard{new_nodes_mutex_};
new_nodes_.push_back(node_ptr);
return true;
}
return false;
}
bool
StaticExecutorEntitiesCollector::add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr)
{
return add_callback_group(group_ptr, node_ptr, weak_groups_associated_with_executor_to_nodes_);
}
bool
StaticExecutorEntitiesCollector::remove_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr)
{
return this->remove_callback_group_from_map(
group_ptr,
weak_groups_associated_with_executor_to_nodes_);
}
bool
StaticExecutorEntitiesCollector::remove_callback_group_from_map(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::memory_strategy::MemoryStrategy::WeakCallbackGroupsToNodesMap & weak_groups_to_nodes)
{
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr;
rclcpp::CallbackGroup::WeakPtr weak_group_ptr = group_ptr;
auto iter = weak_groups_to_nodes.find(weak_group_ptr);
if (iter != weak_groups_to_nodes.end()) {
node_ptr = iter->second.lock();
if (node_ptr == nullptr) {
throw std::runtime_error("Node must not be deleted before its callback group(s).");
}
weak_groups_to_nodes.erase(iter);
} else {
throw std::runtime_error("Callback group needs to be associated with executor.");
}
// If the node was matched and removed, interrupt waiting.
if (!has_node(node_ptr, weak_groups_associated_with_executor_to_nodes_) &&
!has_node(node_ptr, weak_groups_to_nodes_associated_with_executor_))
{
rclcpp::node_interfaces::NodeBaseInterface::WeakPtr node_weak_ptr(node_ptr);
weak_nodes_to_guard_conditions_.erase(node_weak_ptr);
return true;
}
return false;
}
bool
StaticExecutorEntitiesCollector::remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr)
{
if (!node_ptr->get_associated_with_executor_atomic().load()) {
return false;
}
bool node_found = false;
auto node_it = weak_nodes_.begin();
while (node_it != weak_nodes_.end()) {
bool matched = (node_it->lock() == node_ptr);
if (matched) {
weak_nodes_.erase(node_it);
node_found = true;
break;
}
++node_it;
}
if (!node_found) {
return false;
}
std::vector<rclcpp::CallbackGroup::SharedPtr> found_group_ptrs;
std::for_each(
weak_groups_to_nodes_associated_with_executor_.begin(),
weak_groups_to_nodes_associated_with_executor_.end(),
[&found_group_ptrs, node_ptr](std::pair<rclcpp::CallbackGroup::WeakPtr,
rclcpp::node_interfaces::NodeBaseInterface::WeakPtr> key_value_pair) {
auto & weak_node_ptr = key_value_pair.second;
auto shared_node_ptr = weak_node_ptr.lock();
auto group_ptr = key_value_pair.first.lock();
if (shared_node_ptr == node_ptr) {
found_group_ptrs.push_back(group_ptr);
}
});
std::for_each(
found_group_ptrs.begin(), found_group_ptrs.end(), [this]
(rclcpp::CallbackGroup::SharedPtr group_ptr) {
this->remove_callback_group_from_map(
group_ptr,
weak_groups_to_nodes_associated_with_executor_);
});
std::atomic_bool & has_executor = node_ptr->get_associated_with_executor_atomic();
has_executor.store(false);
return true;
}
bool
StaticExecutorEntitiesCollector::is_ready(rcl_wait_set_t * p_wait_set)
{
// Check wait_set guard_conditions for added/removed entities to/from a node
for (size_t i = 0; i < p_wait_set->size_of_guard_conditions; ++i) {
if (p_wait_set->guard_conditions[i] != NULL) {
auto found_guard_condition = std::find_if(
weak_nodes_to_guard_conditions_.begin(), weak_nodes_to_guard_conditions_.end(),
[&](std::pair<rclcpp::node_interfaces::NodeBaseInterface::WeakPtr,
const GuardCondition *> pair) -> bool {
const rcl_guard_condition_t & rcl_gc = pair.second->get_rcl_guard_condition();
return &rcl_gc == p_wait_set->guard_conditions[i];
});
if (found_guard_condition != weak_nodes_to_guard_conditions_.end()) {
return true;
}
}
}
// None of the guard conditions triggered belong to a registered node
return false;
}
// Returns true iff the weak_groups_to_nodes map has node_ptr as the value in any of its entry.
bool
StaticExecutorEntitiesCollector::has_node(
const rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
const rclcpp::memory_strategy::MemoryStrategy::WeakCallbackGroupsToNodesMap &
weak_groups_to_nodes) const
{
return std::find_if(
weak_groups_to_nodes.begin(),
weak_groups_to_nodes.end(),
[&](const WeakCallbackGroupsToNodesMap::value_type & other) -> bool {
auto other_ptr = other.second.lock();
return other_ptr == node_ptr;
}) != weak_groups_to_nodes.end();
}
void
StaticExecutorEntitiesCollector::add_callback_groups_from_nodes_associated_to_executor()
{
for (const auto & weak_node : weak_nodes_) {
auto node = weak_node.lock();
if (node) {
node->for_each_callback_group(
[this, node](rclcpp::CallbackGroup::SharedPtr shared_group_ptr)
{
if (shared_group_ptr->automatically_add_to_executor_with_node() &&
!shared_group_ptr->get_associated_with_executor_atomic().load())
{
add_callback_group(
shared_group_ptr,
node,
weak_groups_to_nodes_associated_with_executor_);
}
});
}
}
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
StaticExecutorEntitiesCollector::get_all_callback_groups()
{
std::vector<rclcpp::CallbackGroup::WeakPtr> groups;
for (const auto & group_node_ptr : weak_groups_associated_with_executor_to_nodes_) {
groups.push_back(group_node_ptr.first);
}
for (const auto & group_node_ptr : weak_groups_to_nodes_associated_with_executor_) {
groups.push_back(group_node_ptr.first);
}
return groups;
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
StaticExecutorEntitiesCollector::get_manually_added_callback_groups()
{
std::vector<rclcpp::CallbackGroup::WeakPtr> groups;
for (const auto & group_node_ptr : weak_groups_associated_with_executor_to_nodes_) {
groups.push_back(group_node_ptr.first);
}
return groups;
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
StaticExecutorEntitiesCollector::get_automatically_added_callback_groups_from_nodes()
{
std::vector<rclcpp::CallbackGroup::WeakPtr> groups;
for (const auto & group_node_ptr : weak_groups_to_nodes_associated_with_executor_) {
groups.push_back(group_node_ptr.first);
}
return groups;
}

View File

@@ -12,21 +12,31 @@
// See the License for the specific language governing permissions and
// limitations under the License.
#include "rclcpp/executors/executor_entities_collection.hpp"
#include "rclcpp/executors/executor_notify_waitable.hpp"
#include "rclcpp/executors/static_single_threaded_executor.hpp"
#include <chrono>
#include <memory>
#include <utility>
#include <vector>
#include "rcpputils/scope_exit.hpp"
#include "rclcpp/executors/static_single_threaded_executor.hpp"
#include "rclcpp/any_executable.hpp"
using rclcpp::executors::StaticSingleThreadedExecutor;
using rclcpp::experimental::ExecutableList;
StaticSingleThreadedExecutor::StaticSingleThreadedExecutor(const rclcpp::ExecutorOptions & options)
StaticSingleThreadedExecutor::StaticSingleThreadedExecutor(
const rclcpp::ExecutorOptions & options)
: rclcpp::Executor(options)
{
entities_collector_ = std::make_shared<StaticExecutorEntitiesCollector>();
}
StaticSingleThreadedExecutor::~StaticSingleThreadedExecutor() {}
StaticSingleThreadedExecutor::~StaticSingleThreadedExecutor()
{
if (entities_collector_->is_init()) {
entities_collector_->fini();
}
}
void
StaticSingleThreadedExecutor::spin()
@@ -36,25 +46,14 @@ StaticSingleThreadedExecutor::spin()
}
RCPPUTILS_SCOPE_EXIT(this->spinning.store(false); );
// This is essentially the contents of the rclcpp::Executor::wait_for_work method,
// except we need to keep the wait result to reproduce the StaticSingleThreadedExecutor
// behavior.
// Set memory_strategy_ and exec_list_ based on weak_nodes_
// Prepare wait_set_ based on memory_strategy_
entities_collector_->init(&wait_set_, memory_strategy_);
while (rclcpp::ok(this->context_) && spinning.load()) {
std::deque<rclcpp::AnyExecutable> to_exec;
std::lock_guard<std::mutex> guard(mutex_);
if (current_collection_.empty() || this->entities_need_rebuild_.load()) {
this->collect_entities();
}
auto wait_result = wait_set_.wait(std::chrono::nanoseconds(-1));
if (wait_result.kind() == WaitResultKind::Empty) {
RCUTILS_LOG_WARN_NAMED(
"rclcpp",
"empty wait set received in wait(). This should never happen.");
continue;
}
execute_ready_executables(current_collection_, wait_result, false);
// Refresh wait set and wait for work
entities_collector_->refresh_wait_set();
execute_ready_executables();
}
}
@@ -81,6 +80,11 @@ StaticSingleThreadedExecutor::spin_all(std::chrono::nanoseconds max_duration)
void
StaticSingleThreadedExecutor::spin_some_impl(std::chrono::nanoseconds max_duration, bool exhaustive)
{
// Make sure the entities collector has been initialized
if (!entities_collector_->is_init()) {
entities_collector_->init(&wait_set_, memory_strategy_);
}
auto start = std::chrono::steady_clock::now();
auto max_duration_not_elapsed = [max_duration, start]() {
if (std::chrono::nanoseconds(0) == max_duration) {
@@ -101,21 +105,9 @@ StaticSingleThreadedExecutor::spin_some_impl(std::chrono::nanoseconds max_durati
while (rclcpp::ok(context_) && spinning.load() && max_duration_not_elapsed()) {
// Get executables that are ready now
std::lock_guard<std::mutex> guard(mutex_);
if (current_collection_.empty() || this->entities_need_rebuild_.load()) {
this->collect_entities();
}
auto wait_result = wait_set_.wait(std::chrono::nanoseconds(0));
if (wait_result.kind() == WaitResultKind::Empty) {
RCUTILS_LOG_WARN_NAMED(
"rclcpp",
"empty wait set received in wait(). This should never happen.");
continue;
}
entities_collector_->refresh_wait_set(std::chrono::milliseconds::zero());
// Execute ready executables
bool work_available = execute_ready_executables(current_collection_, wait_result, false);
bool work_available = execute_ready_executables();
if (!work_available || !exhaustive) {
break;
}
@@ -125,122 +117,164 @@ StaticSingleThreadedExecutor::spin_some_impl(std::chrono::nanoseconds max_durati
void
StaticSingleThreadedExecutor::spin_once_impl(std::chrono::nanoseconds timeout)
{
// Make sure the entities collector has been initialized
if (!entities_collector_->is_init()) {
entities_collector_->init(&wait_set_, memory_strategy_);
}
if (rclcpp::ok(context_) && spinning.load()) {
std::lock_guard<std::mutex> guard(mutex_);
if (current_collection_.empty() || this->entities_need_rebuild_.load()) {
this->collect_entities();
}
auto wait_result = wait_set_.wait(std::chrono::nanoseconds(timeout));
if (wait_result.kind() == WaitResultKind::Empty) {
RCUTILS_LOG_WARN_NAMED(
"rclcpp",
"empty wait set received in wait(). This should never happen.");
return;
}
// Wait until we have a ready entity or timeout expired
entities_collector_->refresh_wait_set(timeout);
// Execute ready executables
execute_ready_executables(current_collection_, wait_result, true);
execute_ready_executables(true);
}
}
// This preserves the "scheduling semantics" of the StaticSingleThreadedExecutor
// from the original implementation.
bool StaticSingleThreadedExecutor::execute_ready_executables(
const rclcpp::executors::ExecutorEntitiesCollection & collection,
rclcpp::WaitResult<rclcpp::WaitSet> & wait_result,
bool spin_once)
void
StaticSingleThreadedExecutor::add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify)
{
bool is_new_node = entities_collector_->add_callback_group(group_ptr, node_ptr);
if (is_new_node && notify) {
// Interrupt waiting to handle new node
interrupt_guard_condition_.trigger();
}
}
void
StaticSingleThreadedExecutor::add_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr, bool notify)
{
bool is_new_node = entities_collector_->add_node(node_ptr);
if (is_new_node && notify) {
// Interrupt waiting to handle new node
interrupt_guard_condition_.trigger();
}
}
void
StaticSingleThreadedExecutor::add_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify)
{
this->add_node(node_ptr->get_node_base_interface(), notify);
}
void
StaticSingleThreadedExecutor::remove_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr, bool notify)
{
bool node_removed = entities_collector_->remove_callback_group(group_ptr);
// If the node was matched and removed, interrupt waiting
if (node_removed && notify) {
interrupt_guard_condition_.trigger();
}
}
void
StaticSingleThreadedExecutor::remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr, bool notify)
{
bool node_removed = entities_collector_->remove_node(node_ptr);
if (!node_removed) {
throw std::runtime_error("Node needs to be associated with this executor.");
}
// If the node was matched and removed, interrupt waiting
if (notify) {
interrupt_guard_condition_.trigger();
}
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
StaticSingleThreadedExecutor::get_all_callback_groups()
{
return entities_collector_->get_all_callback_groups();
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
StaticSingleThreadedExecutor::get_manually_added_callback_groups()
{
return entities_collector_->get_manually_added_callback_groups();
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
StaticSingleThreadedExecutor::get_automatically_added_callback_groups_from_nodes()
{
return entities_collector_->get_automatically_added_callback_groups_from_nodes();
}
void
StaticSingleThreadedExecutor::remove_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify)
{
this->remove_node(node_ptr->get_node_base_interface(), notify);
}
bool
StaticSingleThreadedExecutor::execute_ready_executables(bool spin_once)
{
bool any_ready_executable = false;
if (wait_result.kind() != rclcpp::WaitResultKind::Ready) {
return any_ready_executable;
// Execute all the ready subscriptions
for (size_t i = 0; i < wait_set_.size_of_subscriptions; ++i) {
if (i < entities_collector_->get_number_of_subscriptions()) {
if (wait_set_.subscriptions[i]) {
execute_subscription(entities_collector_->get_subscription(i));
if (spin_once) {
return true;
}
any_ready_executable = true;
}
}
}
auto rcl_wait_set = wait_result.get_wait_set().get_rcl_wait_set();
for (size_t ii = 0; ii < rcl_wait_set.size_of_timers; ++ii) {
if (nullptr == rcl_wait_set.timers[ii]) {continue;}
auto entity_iter = collection.timers.find(rcl_wait_set.timers[ii]);
if (entity_iter != collection.timers.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
// Execute all the ready timers
for (size_t i = 0; i < wait_set_.size_of_timers; ++i) {
if (i < entities_collector_->get_number_of_timers()) {
if (wait_set_.timers[i] && entities_collector_->get_timer(i)->is_ready()) {
auto timer = entities_collector_->get_timer(i);
timer->call();
execute_timer(std::move(timer));
if (spin_once) {
return true;
}
any_ready_executable = true;
}
if (!entity->call()) {
continue;
}
}
// Execute all the ready services
for (size_t i = 0; i < wait_set_.size_of_services; ++i) {
if (i < entities_collector_->get_number_of_services()) {
if (wait_set_.services[i]) {
execute_service(entities_collector_->get_service(i));
if (spin_once) {
return true;
}
any_ready_executable = true;
}
execute_timer(entity);
}
}
// Execute all the ready clients
for (size_t i = 0; i < wait_set_.size_of_clients; ++i) {
if (i < entities_collector_->get_number_of_clients()) {
if (wait_set_.clients[i]) {
execute_client(entities_collector_->get_client(i));
if (spin_once) {
return true;
}
any_ready_executable = true;
}
}
}
// Execute all the ready waitables
for (size_t i = 0; i < entities_collector_->get_number_of_waitables(); ++i) {
auto waitable = entities_collector_->get_waitable(i);
if (waitable->is_ready(&wait_set_)) {
auto data = waitable->take_data();
waitable->execute(data);
if (spin_once) {
return true;
}
any_ready_executable = true;
}
}
for (size_t ii = 0; ii < rcl_wait_set.size_of_subscriptions; ++ii) {
if (nullptr == rcl_wait_set.subscriptions[ii]) {continue;}
auto entity_iter = collection.subscriptions.find(rcl_wait_set.subscriptions[ii]);
if (entity_iter != collection.subscriptions.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
execute_subscription(entity);
if (spin_once) {
return true;
}
any_ready_executable = true;
}
}
for (size_t ii = 0; ii < rcl_wait_set.size_of_services; ++ii) {
if (nullptr == rcl_wait_set.services[ii]) {continue;}
auto entity_iter = collection.services.find(rcl_wait_set.services[ii]);
if (entity_iter != collection.services.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
execute_service(entity);
if (spin_once) {
return true;
}
any_ready_executable = true;
}
}
for (size_t ii = 0; ii < rcl_wait_set.size_of_clients; ++ii) {
if (nullptr == rcl_wait_set.clients[ii]) {continue;}
auto entity_iter = collection.clients.find(rcl_wait_set.clients[ii]);
if (entity_iter != collection.clients.end()) {
auto entity = entity_iter->second.entity.lock();
if (!entity) {
continue;
}
execute_client(entity);
if (spin_once) {
return true;
}
any_ready_executable = true;
}
}
for (auto & [handle, entry] : collection.waitables) {
auto waitable = entry.entity.lock();
if (!waitable) {
continue;
}
if (!waitable->is_ready(&rcl_wait_set)) {
continue;
}
auto data = waitable->take_data();
waitable->execute(data);
if (spin_once) {
return true;
}
any_ready_executable = true;
}
return any_ready_executable;
}

View File

@@ -1,488 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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.
#include "rclcpp/experimental/executors/events_executor/events_executor.hpp"
#include <memory>
#include <utility>
#include <vector>
#include "rcpputils/scope_exit.hpp"
using namespace std::chrono_literals;
using rclcpp::experimental::executors::EventsExecutor;
EventsExecutor::EventsExecutor(
rclcpp::experimental::executors::EventsQueue::UniquePtr events_queue,
bool execute_timers_separate_thread,
const rclcpp::ExecutorOptions & options)
: rclcpp::Executor(options)
{
// Get ownership of the queue used to store events.
if (!events_queue) {
throw std::invalid_argument("events_queue can't be a null pointer");
}
events_queue_ = std::move(events_queue);
// Create timers manager
// The timers manager can be used either to only track timers (in this case an expired
// timer will generate an executor event and then it will be executed by the executor thread)
// or it can also take care of executing expired timers in its dedicated thread.
std::function<void(const rclcpp::TimerBase *)> timer_on_ready_cb = nullptr;
if (!execute_timers_separate_thread) {
timer_on_ready_cb = [this](const rclcpp::TimerBase * timer_id) {
ExecutorEvent event = {timer_id, -1, ExecutorEventType::TIMER_EVENT, 1};
this->events_queue_->enqueue(event);
};
}
timers_manager_ =
std::make_shared<rclcpp::experimental::TimersManager>(context_, timer_on_ready_cb);
notify_waitable_ = std::make_shared<rclcpp::executors::ExecutorNotifyWaitable>(
[this]() {
// This callback is invoked when:
// - the interrupt or shutdown guard condition is triggered:
// ---> we need to wake up the executor so that it can terminate
// - a node or callback group guard condition is triggered:
// ---> the entities collection is changed, we need to update callbacks
notify_waitable_event_pushed_ = false;
this->refresh_current_collection_from_callback_groups();
});
notify_waitable_->add_guard_condition(interrupt_guard_condition_);
notify_waitable_->add_guard_condition(shutdown_guard_condition_);
notify_waitable_->set_on_ready_callback(
this->create_waitable_callback(notify_waitable_.get()));
auto notify_waitable_entity_id = notify_waitable_.get();
notify_waitable_->set_on_ready_callback(
[this, notify_waitable_entity_id](size_t num_events, int waitable_data) {
// The notify waitable has a special callback.
// We don't care about how many events as when we wake up the executor we are going to
// process everything regardless.
// For the same reason, if an event of this type has already been pushed but it has not been
// processed yet, we avoid pushing additional events.
(void)num_events;
if (notify_waitable_event_pushed_.exchange(true)) {
return;
}
ExecutorEvent event =
{notify_waitable_entity_id, waitable_data, ExecutorEventType::WAITABLE_EVENT, 1};
this->events_queue_->enqueue(event);
});
this->entities_collector_ =
std::make_shared<rclcpp::executors::ExecutorEntitiesCollector>(notify_waitable_);
this->current_entities_collection_ =
std::make_shared<rclcpp::executors::ExecutorEntitiesCollection>();
}
EventsExecutor::~EventsExecutor()
{
spinning.store(false);
notify_waitable_->clear_on_ready_callback();
this->refresh_current_collection({});
}
void
EventsExecutor::spin()
{
if (spinning.exchange(true)) {
throw std::runtime_error("spin() called while already spinning");
}
RCPPUTILS_SCOPE_EXIT(this->spinning.store(false); );
timers_manager_->start();
RCPPUTILS_SCOPE_EXIT(timers_manager_->stop(); );
while (rclcpp::ok(context_) && spinning.load()) {
// Wait until we get an event
ExecutorEvent event;
bool has_event = events_queue_->dequeue(event);
if (has_event) {
this->execute_event(event);
}
}
}
void
EventsExecutor::spin_some(std::chrono::nanoseconds max_duration)
{
return this->spin_some_impl(max_duration, false);
}
void
EventsExecutor::spin_all(std::chrono::nanoseconds max_duration)
{
if (max_duration <= 0ns) {
throw std::invalid_argument("max_duration must be positive");
}
return this->spin_some_impl(max_duration, true);
}
void
EventsExecutor::spin_some_impl(std::chrono::nanoseconds max_duration, bool exhaustive)
{
if (spinning.exchange(true)) {
throw std::runtime_error("spin_some() called while already spinning");
}
RCPPUTILS_SCOPE_EXIT(this->spinning.store(false); );
auto start = std::chrono::steady_clock::now();
auto max_duration_not_elapsed = [max_duration, start]() {
if (std::chrono::nanoseconds(0) == max_duration) {
// told to spin forever if need be
return true;
} else if (std::chrono::steady_clock::now() - start < max_duration) {
// told to spin only for some maximum amount of time
return true;
}
// spun too long
return false;
};
// Get the number of events and timers ready at start
const size_t ready_events_at_start = events_queue_->size();
size_t executed_events = 0;
const size_t ready_timers_at_start = timers_manager_->get_number_ready_timers();
size_t executed_timers = 0;
while (rclcpp::ok(context_) && spinning.load() && max_duration_not_elapsed()) {
// Execute first ready event from queue if exists
if (exhaustive || (executed_events < ready_events_at_start)) {
bool has_event = !events_queue_->empty();
if (has_event) {
ExecutorEvent event;
bool ret = events_queue_->dequeue(event, std::chrono::nanoseconds(0));
if (ret) {
this->execute_event(event);
executed_events++;
continue;
}
}
}
// Execute first timer if it is ready
if (exhaustive || (executed_timers < ready_timers_at_start)) {
bool timer_executed = timers_manager_->execute_head_timer();
if (timer_executed) {
executed_timers++;
continue;
}
}
// If there's no more work available, exit
break;
}
}
void
EventsExecutor::spin_once_impl(std::chrono::nanoseconds timeout)
{
// In this context a negative input timeout means no timeout
if (timeout < 0ns) {
timeout = std::chrono::nanoseconds::max();
}
// Select the smallest between input timeout and timer timeout
bool is_timer_timeout = false;
auto next_timer_timeout = timers_manager_->get_head_timeout();
if (next_timer_timeout < timeout) {
timeout = next_timer_timeout;
is_timer_timeout = true;
}
ExecutorEvent event;
bool has_event = events_queue_->dequeue(event, timeout);
// If we wake up from the wait with an event, it means that it
// arrived before any of the timers expired.
if (has_event) {
this->execute_event(event);
} else if (is_timer_timeout) {
timers_manager_->execute_head_timer();
}
}
void
EventsExecutor::add_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr, bool notify)
{
// This field is unused because we don't have to wake up the executor when a node is added.
(void) notify;
// Add node to entities collector
this->entities_collector_->add_node(node_ptr);
this->refresh_current_collection_from_callback_groups();
}
void
EventsExecutor::add_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify)
{
this->add_node(node_ptr->get_node_base_interface(), notify);
}
void
EventsExecutor::remove_node(
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr, bool notify)
{
// This field is unused because we don't have to wake up the executor when a node is removed.
(void)notify;
// Remove node from entities collector.
// This will result in un-setting all the event callbacks from its entities.
// After this function returns, this executor will not receive any more events associated
// to these entities.
this->entities_collector_->remove_node(node_ptr);
this->refresh_current_collection_from_callback_groups();
}
void
EventsExecutor::remove_node(std::shared_ptr<rclcpp::Node> node_ptr, bool notify)
{
this->remove_node(node_ptr->get_node_base_interface(), notify);
}
void
EventsExecutor::execute_event(const ExecutorEvent & event)
{
switch (event.type) {
case ExecutorEventType::CLIENT_EVENT:
{
auto client = this->retrieve_entity(
static_cast<const rcl_client_t *>(event.entity_key),
current_entities_collection_->clients);
if (client) {
for (size_t i = 0; i < event.num_events; i++) {
execute_client(client);
}
}
break;
}
case ExecutorEventType::SUBSCRIPTION_EVENT:
{
auto subscription = this->retrieve_entity(
static_cast<const rcl_subscription_t *>(event.entity_key),
current_entities_collection_->subscriptions);
if (subscription) {
for (size_t i = 0; i < event.num_events; i++) {
execute_subscription(subscription);
}
}
break;
}
case ExecutorEventType::SERVICE_EVENT:
{
auto service = this->retrieve_entity(
static_cast<const rcl_service_t *>(event.entity_key),
current_entities_collection_->services);
if (service) {
for (size_t i = 0; i < event.num_events; i++) {
execute_service(service);
}
}
break;
}
case ExecutorEventType::TIMER_EVENT:
{
timers_manager_->execute_ready_timer(
static_cast<const rclcpp::TimerBase *>(event.entity_key));
break;
}
case ExecutorEventType::WAITABLE_EVENT:
{
auto waitable = this->retrieve_entity(
static_cast<const rclcpp::Waitable *>(event.entity_key),
current_entities_collection_->waitables);
if (waitable) {
for (size_t i = 0; i < event.num_events; i++) {
auto data = waitable->take_data_by_entity_id(event.waitable_data);
waitable->execute(data);
}
}
break;
}
}
}
void
EventsExecutor::add_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr,
rclcpp::node_interfaces::NodeBaseInterface::SharedPtr node_ptr,
bool notify)
{
// This field is unused because we don't have to wake up
// the executor when a callback group is added.
(void)notify;
(void)node_ptr;
this->entities_collector_->add_callback_group(group_ptr);
this->refresh_current_collection_from_callback_groups();
}
void
EventsExecutor::remove_callback_group(
rclcpp::CallbackGroup::SharedPtr group_ptr, bool notify)
{
// This field is unused because we don't have to wake up
// the executor when a callback group is removed.
(void)notify;
this->entities_collector_->remove_callback_group(group_ptr);
this->refresh_current_collection_from_callback_groups();
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
EventsExecutor::get_all_callback_groups()
{
this->entities_collector_->update_collections();
return this->entities_collector_->get_all_callback_groups();
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
EventsExecutor::get_manually_added_callback_groups()
{
this->entities_collector_->update_collections();
return this->entities_collector_->get_manually_added_callback_groups();
}
std::vector<rclcpp::CallbackGroup::WeakPtr>
EventsExecutor::get_automatically_added_callback_groups_from_nodes()
{
this->entities_collector_->update_collections();
return this->entities_collector_->get_automatically_added_callback_groups();
}
void
EventsExecutor::refresh_current_collection_from_callback_groups()
{
this->entities_collector_->update_collections();
auto callback_groups = this->entities_collector_->get_all_callback_groups();
rclcpp::executors::ExecutorEntitiesCollection new_collection;
rclcpp::executors::build_entities_collection(callback_groups, new_collection);
// TODO(alsora): this may be implemented in a better way.
// We need the notify waitable to be included in the executor "current_collection"
// because we need to be able to retrieve events for it.
// We could explicitly check for the notify waitable ID when we receive a waitable event
// but I think that it's better if the waitable was in the collection and it could be
// retrieved in the "standard" way.
// To do it, we need to add the notify waitable as an entry in both the new and
// current collections such that it's neither added or removed.
rclcpp::CallbackGroup::WeakPtr weak_group_ptr;
new_collection.waitables.insert(
{
this->notify_waitable_.get(),
{this->notify_waitable_, weak_group_ptr}
});
this->current_entities_collection_->waitables.insert(
{
this->notify_waitable_.get(),
{this->notify_waitable_, weak_group_ptr}
});
this->refresh_current_collection(new_collection);
}
void
EventsExecutor::refresh_current_collection(
const rclcpp::executors::ExecutorEntitiesCollection & new_collection)
{
current_entities_collection_->timers.update(
new_collection.timers,
[this](rclcpp::TimerBase::SharedPtr timer) {timers_manager_->add_timer(timer);},
[this](rclcpp::TimerBase::SharedPtr timer) {timers_manager_->remove_timer(timer);});
current_entities_collection_->subscriptions.update(
new_collection.subscriptions,
[this](auto subscription) {
subscription->set_on_new_message_callback(
this->create_entity_callback(
subscription->get_subscription_handle().get(), ExecutorEventType::SUBSCRIPTION_EVENT));
},
[](auto subscription) {subscription->clear_on_new_message_callback();});
current_entities_collection_->clients.update(
new_collection.clients,
[this](auto client) {
client->set_on_new_response_callback(
this->create_entity_callback(
client->get_client_handle().get(), ExecutorEventType::CLIENT_EVENT));
},
[](auto client) {client->clear_on_new_response_callback();});
current_entities_collection_->services.update(
new_collection.services,
[this](auto service) {
service->set_on_new_request_callback(
this->create_entity_callback(
service->get_service_handle().get(), ExecutorEventType::SERVICE_EVENT));
},
[](auto service) {service->clear_on_new_request_callback();});
// DO WE NEED THIS? WE ARE NOT DOING ANYTHING WITH GUARD CONDITIONS
/*
current_entities_collection_->guard_conditions.update(new_collection.guard_conditions,
[](auto guard_condition) {(void)guard_condition;},
[](auto guard_condition) {guard_condition->set_on_trigger_callback(nullptr);});
*/
current_entities_collection_->waitables.update(
new_collection.waitables,
[this](auto waitable) {
waitable->set_on_ready_callback(
this->create_waitable_callback(waitable.get()));
},
[](auto waitable) {waitable->clear_on_ready_callback();});
}
std::function<void(size_t)>
EventsExecutor::create_entity_callback(
void * entity_key, ExecutorEventType event_type)
{
std::function<void(size_t)>
callback = [this, entity_key, event_type](size_t num_events) {
ExecutorEvent event = {entity_key, -1, event_type, num_events};
this->events_queue_->enqueue(event);
};
return callback;
}
std::function<void(size_t, int)>
EventsExecutor::create_waitable_callback(const rclcpp::Waitable * entity_key)
{
std::function<void(size_t, int)>
callback = [this, entity_key](size_t num_events, int waitable_data) {
ExecutorEvent event =
{entity_key, waitable_data, ExecutorEventType::WAITABLE_EVENT, num_events};
this->events_queue_->enqueue(event);
};
return callback;
}

View File

@@ -1,299 +0,0 @@
// Copyright 2023 iRobot Corporation.
//
// 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.
#include "rclcpp/experimental/timers_manager.hpp"
#include <inttypes.h>
#include <ctime>
#include <iostream>
#include <memory>
#include <stdexcept>
#include "rcpputils/scope_exit.hpp"
using rclcpp::experimental::TimersManager;
TimersManager::TimersManager(
std::shared_ptr<rclcpp::Context> context,
std::function<void(const rclcpp::TimerBase *)> on_ready_callback)
{
context_ = context;
on_ready_callback_ = on_ready_callback;
}
TimersManager::~TimersManager()
{
// Remove all timers
this->clear();
// Make sure timers thread is stopped before destroying this object
this->stop();
}
void TimersManager::add_timer(rclcpp::TimerBase::SharedPtr timer)
{
if (!timer) {
throw std::invalid_argument("TimersManager::add_timer() trying to add nullptr timer");
}
bool added = false;
{
std::unique_lock<std::mutex> lock(timers_mutex_);
added = weak_timers_heap_.add_timer(timer);
timers_updated_ = timers_updated_ || added;
}
timer->set_on_reset_callback(
[this](size_t arg) {
{
(void)arg;
std::unique_lock<std::mutex> lock(timers_mutex_);
timers_updated_ = true;
}
timers_cv_.notify_one();
});
if (added) {
// Notify that a timer has been added
timers_cv_.notify_one();
}
}
void TimersManager::start()
{
// Make sure that the thread is not already running
if (running_.exchange(true)) {
throw std::runtime_error("TimersManager::start() can't start timers thread as already running");
}
timers_thread_ = std::thread(&TimersManager::run_timers, this);
}
void TimersManager::stop()
{
// Lock stop() function to prevent race condition in destructor
std::unique_lock<std::mutex> lock(stop_mutex_);
running_ = false;
// Notify the timers manager thread to wake up
{
std::unique_lock<std::mutex> lock(timers_mutex_);
timers_updated_ = true;
}
timers_cv_.notify_one();
// Join timers thread if it's running
if (timers_thread_.joinable()) {
timers_thread_.join();
}
}
std::chrono::nanoseconds TimersManager::get_head_timeout()
{
// Do not allow to interfere with the thread running
if (running_) {
throw std::runtime_error(
"get_head_timeout() can't be used while timers thread is running");
}
std::unique_lock<std::mutex> lock(timers_mutex_);
return this->get_head_timeout_unsafe();
}
size_t TimersManager::get_number_ready_timers()
{
// Do not allow to interfere with the thread running
if (running_) {
throw std::runtime_error(
"get_number_ready_timers() can't be used while timers thread is running");
}
std::unique_lock<std::mutex> lock(timers_mutex_);
TimersHeap locked_heap = weak_timers_heap_.validate_and_lock();
return locked_heap.get_number_ready_timers();
}
bool TimersManager::execute_head_timer()
{
// Do not allow to interfere with the thread running
if (running_) {
throw std::runtime_error(
"execute_head_timer() can't be used while timers thread is running");
}
std::unique_lock<std::mutex> lock(timers_mutex_);
TimersHeap timers_heap = weak_timers_heap_.validate_and_lock();
// Nothing to do if we don't have any timer
if (timers_heap.empty()) {
return false;
}
TimerPtr head_timer = timers_heap.front();
const bool timer_ready = head_timer->is_ready();
if (timer_ready) {
// NOTE: here we always execute the timer, regardless of whether the
// on_ready_callback is set or not.
head_timer->call();
head_timer->execute_callback();
timers_heap.heapify_root();
weak_timers_heap_.store(timers_heap);
}
return timer_ready;
}
void TimersManager::execute_ready_timer(const rclcpp::TimerBase * timer_id)
{
TimerPtr ready_timer;
{
std::unique_lock<std::mutex> lock(timers_mutex_);
ready_timer = weak_timers_heap_.get_timer(timer_id);
}
if (ready_timer) {
ready_timer->execute_callback();
}
}
std::chrono::nanoseconds TimersManager::get_head_timeout_unsafe()
{
// If we don't have any weak pointer, then we just return maximum timeout
if (weak_timers_heap_.empty()) {
return std::chrono::nanoseconds::max();
}
// Weak heap is not empty, so try to lock the first element.
// If it is still a valid pointer, it is guaranteed to be the correct head
TimerPtr head_timer = weak_timers_heap_.front().lock();
if (!head_timer) {
// The first element has expired, we can't make other assumptions on the heap
// and we need to entirely validate it.
TimersHeap locked_heap = weak_timers_heap_.validate_and_lock();
// NOTE: the following operations will not modify any element in the heap, so we
// don't have to call `weak_timers_heap_.store(locked_heap)` at the end.
if (locked_heap.empty()) {
return std::chrono::nanoseconds::max();
}
head_timer = locked_heap.front();
}
return head_timer->time_until_trigger();
}
void TimersManager::execute_ready_timers_unsafe()
{
// We start by locking the timers
TimersHeap locked_heap = weak_timers_heap_.validate_and_lock();
// Nothing to do if we don't have any timer
if (locked_heap.empty()) {
return;
}
// Keep executing timers until they are ready and they were already ready when we started.
// The two checks prevent this function from blocking indefinitely if the
// time required for executing the timers is longer than their period.
TimerPtr head_timer = locked_heap.front();
const size_t number_ready_timers = locked_heap.get_number_ready_timers();
size_t executed_timers = 0;
while (executed_timers < number_ready_timers && head_timer->is_ready()) {
head_timer->call();
if (on_ready_callback_) {
on_ready_callback_(head_timer.get());
} else {
head_timer->execute_callback();
}
executed_timers++;
// Executing a timer will result in updating its time_until_trigger, so re-heapify
locked_heap.heapify_root();
// Get new head timer
head_timer = locked_heap.front();
}
// After having performed work on the locked heap we reflect the changes to weak one.
// Timers will be already sorted the next time we need them if none went out of scope.
weak_timers_heap_.store(locked_heap);
}
void TimersManager::run_timers()
{
// Make sure the running flag is set to false when we exit from this function
// to allow restarting the timers thread.
RCPPUTILS_SCOPE_EXIT(this->running_.store(false); );
while (rclcpp::ok(context_) && running_) {
// Lock mutex
std::unique_lock<std::mutex> lock(timers_mutex_);
std::chrono::nanoseconds time_to_sleep = get_head_timeout_unsafe();
// No need to wait if a timer is already available
if (time_to_sleep > std::chrono::nanoseconds::zero()) {
if (time_to_sleep != std::chrono::nanoseconds::max()) {
// Wait until timeout or notification that timers have been updated
timers_cv_.wait_for(lock, time_to_sleep, [this]() {return timers_updated_;});
} else {
// Wait until notification that timers have been updated
timers_cv_.wait(lock, [this]() {return timers_updated_;});
}
}
// Reset timers updated flag
timers_updated_ = false;
// Execute timers
this->execute_ready_timers_unsafe();
}
}
void TimersManager::clear()
{
{
// Lock mutex and then clear all data structures
std::unique_lock<std::mutex> lock(timers_mutex_);
TimersHeap locked_heap = weak_timers_heap_.validate_and_lock();
locked_heap.clear_timers_on_reset_callbacks();
weak_timers_heap_.clear();
timers_updated_ = true;
}
// Notify timers thread such that it can re-compute its timeout
timers_cv_.notify_one();
}
void TimersManager::remove_timer(TimerPtr timer)
{
bool removed = false;
{
std::unique_lock<std::mutex> lock(timers_mutex_);
removed = weak_timers_heap_.remove_timer(timer);
timers_updated_ = timers_updated_ || removed;
}
if (removed) {
// Notify timers thread such that it can re-compute its timeout
timers_cv_.notify_one();
timer->clear_on_reset_callback();
}
}

View File

@@ -25,20 +25,17 @@
namespace rclcpp
{
std::shared_ptr<void>
GenericSubscription::create_message()
std::shared_ptr<void> GenericSubscription::create_message()
{
return create_serialized_message();
}
std::shared_ptr<rclcpp::SerializedMessage>
GenericSubscription::create_serialized_message()
std::shared_ptr<rclcpp::SerializedMessage> GenericSubscription::create_serialized_message()
{
return std::make_shared<rclcpp::SerializedMessage>(0);
}
void
GenericSubscription::handle_message(
void GenericSubscription::handle_message(
std::shared_ptr<void> &,
const rclcpp::MessageInfo &)
{
@@ -54,8 +51,7 @@ GenericSubscription::handle_serialized_message(
callback_(message);
}
void
GenericSubscription::handle_loaned_message(
void GenericSubscription::handle_loaned_message(
void * message, const rclcpp::MessageInfo & message_info)
{
(void) message;
@@ -64,69 +60,16 @@ GenericSubscription::handle_loaned_message(
"handle_loaned_message is not implemented for GenericSubscription");
}
void
GenericSubscription::return_message(std::shared_ptr<void> & message)
void GenericSubscription::return_message(std::shared_ptr<void> & message)
{
auto typed_message = std::static_pointer_cast<rclcpp::SerializedMessage>(message);
return_serialized_message(typed_message);
}
void
GenericSubscription::return_serialized_message(
void GenericSubscription::return_serialized_message(
std::shared_ptr<rclcpp::SerializedMessage> & message)
{
message.reset();
}
// DYNAMIC TYPE ====================================================================================
// TODO(methylDragon): Reorder later
rclcpp::dynamic_typesupport::DynamicMessageType::SharedPtr
GenericSubscription::get_shared_dynamic_message_type()
{
throw rclcpp::exceptions::UnimplementedError(
"get_shared_dynamic_message_type is not implemented for GenericSubscription");
}
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr
GenericSubscription::get_shared_dynamic_message()
{
throw rclcpp::exceptions::UnimplementedError(
"get_shared_dynamic_message is not implemented for GenericSubscription");
}
rclcpp::dynamic_typesupport::DynamicSerializationSupport::SharedPtr
GenericSubscription::get_shared_dynamic_serialization_support()
{
throw rclcpp::exceptions::UnimplementedError(
"get_shared_dynamic_serialization_support is not implemented for GenericSubscription");
}
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr
GenericSubscription::create_dynamic_message()
{
throw rclcpp::exceptions::UnimplementedError(
"create_dynamic_message is not implemented for GenericSubscription");
}
void
GenericSubscription::return_dynamic_message(
rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message)
{
(void) message;
throw rclcpp::exceptions::UnimplementedError(
"return_dynamic_message is not implemented for GenericSubscription");
}
void
GenericSubscription::handle_dynamic_message(
const rclcpp::dynamic_typesupport::DynamicMessage::SharedPtr & message,
const rclcpp::MessageInfo & message_info)
{
(void) message;
(void) message_info;
throw rclcpp::exceptions::UnimplementedError(
"handle_dynamic_message is not implemented for GenericSubscription");
}
} // namespace rclcpp

View File

@@ -12,19 +12,14 @@
// See the License for the specific language governing permissions and
// limitations under the License.
#include <memory>
#include <string>
#include <utility>
#include "rcl_logging_interface/rcl_logging_interface.h"
#include "rcl/logging_rosout.h"
#include "rclcpp/exceptions.hpp"
#include "rclcpp/logger.hpp"
#include "rclcpp/logging.hpp"
#include "./logging_mutex.hpp"
namespace rclcpp
{
@@ -67,46 +62,6 @@ get_logging_directory()
return path;
}
Logger
Logger::get_child(const std::string & suffix)
{
if (!name_) {
return Logger();
}
rcl_ret_t rcl_ret = RCL_RET_OK;
std::shared_ptr<std::recursive_mutex> logging_mutex;
logging_mutex = get_global_logging_mutex();
{
std::lock_guard<std::recursive_mutex> guard(*logging_mutex);
rcl_ret = rcl_logging_rosout_add_sublogger((*name_).c_str(), suffix.c_str());
if (RCL_RET_OK != rcl_ret) {
exceptions::throw_from_rcl_error(
rcl_ret, "failed to call rcl_logging_rosout_add_sublogger",
rcutils_get_error_state(), rcutils_reset_error);
}
}
Logger logger(*name_ + RCUTILS_LOGGING_SEPARATOR_STRING + suffix);
if (RCL_RET_OK == rcl_ret) {
logger.logger_sublogger_pairname_.reset(
new std::pair<std::string, std::string>({*name_, suffix}),
[logging_mutex](std::pair<std::string, std::string> * logger_sublogger_pairname_ptr) {
std::lock_guard<std::recursive_mutex> guard(*logging_mutex);
rcl_ret_t rcl_ret = rcl_logging_rosout_remove_sublogger(
logger_sublogger_pairname_ptr->first.c_str(),
logger_sublogger_pairname_ptr->second.c_str());
delete logger_sublogger_pairname_ptr;
if (RCL_RET_OK != rcl_ret) {
exceptions::throw_from_rcl_error(
rcl_ret, "failed to call rcl_logging_rosout_remove_sublogger",
rcutils_get_error_state(), rcutils_reset_error);
}
});
}
return logger;
}
void
Logger::set_level(Level level)
{
@@ -125,18 +80,4 @@ Logger::set_level(Level level)
}
}
Logger::Level
Logger::get_effective_level() const
{
int logger_level = rcutils_logging_get_logger_effective_level(get_name());
if (logger_level < 0) {
exceptions::throw_from_rcl_error(
RCL_RET_ERROR, "Couldn't get logger level",
rcutils_get_error_state(), rcutils_reset_error);
}
return static_cast<Level>(logger_level);
}
} // namespace rclcpp

View File

@@ -176,8 +176,7 @@ Node::Node(
node_topics_,
node_graph_,
node_services_,
node_logging_,
options.clock_type()
node_logging_
)),
node_parameters_(new rclcpp::node_interfaces::NodeParameters(
node_base_,
@@ -376,7 +375,7 @@ Node::get_parameter(const std::string & name) const
}
bool
Node::get_parameter(const std::string & name, rclcpp::Parameter & parameter) const
Node::get_parameter(const std::string & name, rclcpp::Parameter & parameter) const noexcept
{
return node_parameters_->get_parameter(name, parameter);
}

View File

@@ -45,7 +45,7 @@ NodeBase::NodeBase(
node_handle_(nullptr),
default_callback_group_(default_callback_group),
associated_with_executor_(false),
notify_guard_condition_(std::make_shared<rclcpp::GuardCondition>(context)),
notify_guard_condition_(context),
notify_guard_condition_is_valid_(false)
{
// Create the rcl node and store it in a shared_ptr with a custom destructor.
@@ -132,10 +132,8 @@ NodeBase::NodeBase(
// Create the default callback group, if needed.
if (nullptr == default_callback_group_) {
using rclcpp::CallbackGroupType;
// Default callback group is mutually exclusive and automatically associated with
// any executors that this node is added to.
default_callback_group_ =
NodeBase::create_callback_group(CallbackGroupType::MutuallyExclusive, true);
NodeBase::create_callback_group(CallbackGroupType::MutuallyExclusive);
}
// Indicate the notify_guard_condition is now valid.
@@ -204,27 +202,11 @@ NodeBase::create_callback_group(
rclcpp::CallbackGroupType group_type,
bool automatically_add_to_executor_with_node)
{
auto weak_context = this->get_context()->weak_from_this();
auto get_node_context = [weak_context]() -> rclcpp::Context::SharedPtr {
return weak_context.lock();
};
auto group = std::make_shared<rclcpp::CallbackGroup>(
group_type,
get_node_context,
automatically_add_to_executor_with_node);
std::lock_guard<std::mutex> lock(callback_groups_mutex_);
callback_groups_.push_back(group);
// This guard condition is generally used to signal to this node's executor that a callback
// group has been added that should be considered for new entities.
// If this is creating the default callback group, then the notify guard condition won't be
// ready or needed yet, as the node is not done being constructed and therefore cannot be added.
// If the callback group is not automatically associated with this node's executors, then
// triggering the guard condition is also unnecessary, it will be manually added to an exector.
if (notify_guard_condition_is_valid_ && automatically_add_to_executor_with_node) {
this->trigger_notify_guard_condition();
}
return group;
}
@@ -271,29 +253,9 @@ NodeBase::get_notify_guard_condition()
if (!notify_guard_condition_is_valid_) {
throw std::runtime_error("failed to get notify guard condition because it is invalid");
}
return *notify_guard_condition_;
}
rclcpp::GuardCondition::SharedPtr
NodeBase::get_shared_notify_guard_condition()
{
std::lock_guard<std::recursive_mutex> notify_condition_lock(notify_guard_condition_mutex_);
if (!notify_guard_condition_is_valid_) {
return nullptr;
}
return notify_guard_condition_;
}
void
NodeBase::trigger_notify_guard_condition()
{
std::lock_guard<std::recursive_mutex> notify_condition_lock(notify_guard_condition_mutex_);
if (!notify_guard_condition_is_valid_) {
throw std::runtime_error("failed to trigger notify guard condition because it is invalid");
}
notify_guard_condition_->trigger();
}
bool
NodeBase::get_use_intra_process_default() const
{

View File

@@ -24,14 +24,13 @@ NodeClock::NodeClock(
rclcpp::node_interfaces::NodeTopicsInterface::SharedPtr node_topics,
rclcpp::node_interfaces::NodeGraphInterface::SharedPtr node_graph,
rclcpp::node_interfaces::NodeServicesInterface::SharedPtr node_services,
rclcpp::node_interfaces::NodeLoggingInterface::SharedPtr node_logging,
rcl_clock_type_t clock_type)
rclcpp::node_interfaces::NodeLoggingInterface::SharedPtr node_logging)
: node_base_(node_base),
node_topics_(node_topics),
node_graph_(node_graph),
node_services_(node_services),
node_logging_(node_logging),
clock_(std::make_shared<rclcpp::Clock>(clock_type))
ros_clock_(std::make_shared<rclcpp::Clock>(RCL_ROS_TIME))
{}
NodeClock::~NodeClock()
@@ -40,11 +39,11 @@ NodeClock::~NodeClock()
rclcpp::Clock::SharedPtr
NodeClock::get_clock()
{
return clock_;
return ros_clock_;
}
rclcpp::Clock::ConstSharedPtr
NodeClock::get_clock() const
{
return clock_;
return ros_clock_;
}

View File

@@ -533,8 +533,9 @@ NodeGraph::notify_graph_change()
}
}
graph_cv_.notify_all();
auto & node_gc = node_base_->get_notify_guard_condition();
try {
node_base_->trigger_notify_guard_condition();
node_gc.trigger();
} catch (const rclcpp::exceptions::RCLError & ex) {
throw std::runtime_error(
std::string("failed to notify wait set on graph change: ") + ex.what());
@@ -788,15 +789,3 @@ rclcpp::TopicEndpointInfo::qos_profile() const
{
return qos_profile_;
}
rosidl_type_hash_t &
rclcpp::TopicEndpointInfo::topic_type_hash()
{
return topic_type_hash_;
}
const rosidl_type_hash_t &
rclcpp::TopicEndpointInfo::topic_type_hash() const
{
return topic_type_hash_;
}

View File

@@ -651,7 +651,7 @@ NodeParameters::undeclare_parameter(const std::string & name)
}
if (!parameter_info->second.descriptor.dynamic_typing) {
throw rclcpp::exceptions::InvalidParameterTypeException{
name, "cannot undeclare a statically typed parameter"};
name, "cannot undeclare an statically typed parameter"};
}
parameters_.erase(parameter_info);
@@ -824,7 +824,7 @@ NodeParameters::set_parameters_atomically(const std::vector<rclcpp::Parameter> &
auto it = parameters_.find(parameter.get_name());
if (it != parameters_.end() && rclcpp::PARAMETER_NOT_SET != it->second.value.get_type()) {
if (!it->second.descriptor.dynamic_typing) {
result.reason = "cannot undeclare a statically typed parameter";
result.reason = "cannot undeclare an statically typed parameter";
result.successful = false;
return result;
}
@@ -938,7 +938,7 @@ NodeParameters::get_parameter(const std::string & name) const
bool
NodeParameters::get_parameter(
const std::string & name,
rclcpp::Parameter & parameter) const
rclcpp::Parameter & parameter) const noexcept
{
std::lock_guard<std::recursive_mutex> lock(mutex_);

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