Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 12345]

▼Nrclcpp
▶Nallocator
CAllocatorDeleter
▶Ncallback_group
CCallbackGroup
▶Ncontexts
▶Ndefault_context
CDefaultContext
▶Nexceptions
CEventNotRegisteredError	Thrown when an unregistered rclcpp::Event is encountered where a registered one was expected
CInvalidEventError	Thrown when an invalid rclcpp::Event object or SharedPtr is encountered
CInvalidNamespaceError	Thrown when a node namespace is invalid
CInvalidNodeError	Thrown when a method is trying to use a node, but it is invalid
CInvalidNodeNameError	Thrown when a node name is invalid
CInvalidParametersException	Thrown if passed parameters are inconsistent or invalid
CInvalidParameterValueException	Throwing if passed parameter value is invalid
CInvalidServiceNameError	Thrown when a service name is invalid
CInvalidTopicNameError	Thrown when a topic name is invalid
CNameValidationError	Thrown when a any kind of name (node, namespace, topic, etc.) is invalid
CRCLBadAlloc	Created when the ret is RCL_RET_BAD_ALLOC
CRCLError	Created when the return code does not match one of the other specialized exceptions
CRCLErrorBase
CRCLInvalidArgument	Created when the ret is RCL_RET_INVALID_ARGUMENT
▶Nexecutor
CAnyExecutable
CExecutor	Coordinate the order and timing of available communication tasks
CExecutorArgs
▶Nexecutors
CMultiThreadedExecutor
CSingleThreadedExecutor	Single-threaded executor implementation
▶Nfunction_traits
Carity_comparator
Ccheck_arguments
Cfunction_traits
Cfunction_traits< FunctionT & >
Cfunction_traits< FunctionT && >
Cfunction_traits< ReturnTypeT(*)(Args ...)>
Cfunction_traits< ReturnTypeT(Args ...)>
Cfunction_traits< ReturnTypeT(ClassT::*)(Args ...) const >
Csame_arguments
Ctuple_tail
Ctuple_tail< std::tuple< Head, Tail ... > >
▶Ngraph_listener
CGraphListener	Notifies many nodes of graph changes by listening in a thread
CGraphListenerShutdownError	Thrown when a function is called on a GraphListener that is already shutdown
CNodeAlreadyAddedError	Thrown when a node has already been added to the GraphListener
CNodeNotFoundError	Thrown when the given node is not in the GraphListener
▶Nintra_process_manager
CIntraProcessManager	This class facilitates intra process communication between nodes
CIntraProcessManagerImpl
CIntraProcessManagerImplBase
▶Nmapped_ring_buffer
CMappedRingBuffer	Ring buffer container of unique_ptr's of T, which can be accessed by a key
CMappedRingBufferBase
▶Nmemory_strategies
▶Nallocator_memory_strategy
CAllocatorMemoryStrategy	Delegate for handling memory allocations while the Executor is executing
▶Nmemory_strategy
CMemoryStrategy	Delegate for handling memory allocations while the Executor is executing
▶Nmessage_memory_strategy
CMessageMemoryStrategy	Default allocation strategy for messages received by subscriptions
▶Nnode_interfaces
CNodeBase	Implementation of the NodeBase part of the Node API
CNodeBaseInterface	Pure virtual interface class for the NodeBase part of the Node API
CNodeClock	Implementation of the NodeClock part of the Node API
CNodeClockInterface	Pure virtual interface class for the NodeClock part of the Node API
CNodeGraph	Implementation the NodeGraph part of the Node API
CNodeGraphInterface	Pure virtual interface class for the NodeGraph part of the Node API
CNodeLogging	Implementation of the NodeLogging part of the Node API
CNodeLoggingInterface	Pure virtual interface class for the NodeLogging part of the Node API
CNodeParameters	Implementation of the NodeParameters part of the Node API
CNodeParametersInterface	Pure virtual interface class for the NodeParameters part of the Node API
CNodeServices	Implementation of the NodeServices part of the Node API
CNodeServicesInterface	Pure virtual interface class for the NodeServices part of the Node API
CNodeTimers	Implementation of the NodeTimers part of the Node API
CNodeTimersInterface	Pure virtual interface class for the NodeTimers part of the Node API
CNodeTopics	Implementation of the NodeTopics part of the Node API
CNodeTopicsInterface	Pure virtual interface class for the NodeTopics part of the Node API
▶Nstrategies
▶Nmessage_pool_memory_strategy
▶CMessagePoolMemoryStrategy	Completely static memory allocation strategy for messages
CPoolMember
▶Nsubscription_traits
Cextract_message_type
Cextract_message_type< std::shared_ptr< MessageT > >
Cextract_message_type< std::unique_ptr< MessageT, Deleter > >
Chas_message_type
Cis_serialized_callback
Cis_serialized_subscription
Cis_serialized_subscription_argument
Cis_serialized_subscription_argument< rcl_serialized_message_t >
Cis_serialized_subscription_argument< std::shared_ptr< rcl_serialized_message_t > >
CAnyServiceCallback
CAnySubscriptionCallback
CAsyncParametersClient
CClient
CClientBase
CClock
CContext
CDuration
CEvent
CGenericRate
CGenericTimer	Generic timer templated on the clock type. Periodically executes a user-specified callback
CJumpHandler
CJumpThreshold	A class to store a threshold for a TimeJump
CLogger
CNode	Node is the single point of entry for creating publishers and subscribers
CParameter	Structure to store an arbitrary parameter with templated get/set methods
CParameterEventsFilter
CParameterService
CParameterTypeException	Indicate the parameter type does not match the expected type
CParameterValue	Store the type and value of a parameter
CPublisher	A publisher publishes messages of any type to a topic
CPublisherBase
CPublisherFactory	Factory with functions used to create a MessageT specific PublisherT
CRateBase
CScopeExit
CService
CServiceBase
CSubscription	Subscription implementation, templated on the type of message this subscription receives
CSubscriptionBase
CSubscriptionFactory	Factory with functions used to create a Subscription<MessageT>
CSyncParametersClient
CTime
CTimeJump	A struct to represent a timejump
CTimerBase
CTimeSource