Class GraphCache

• Defined in File graph_cache.hpp

Class Documentation

class GraphCache

Graph cache data structure.

Manages relationships between participants, nodes, and topics.

Public Types

using NodeEntitiesInfoSeq = decltype(std::declval<rmw_dds_common::msg::ParticipantEntitiesInfo>().node_entities_info_seq)

using EntityGidToInfo = std::map<rmw_gid_t, EntityInfo, Compare_rmw_gid_t>

using ParticipantToNodesMap = std::map<rmw_gid_t, ParticipantInfo, Compare_rmw_gid_t>

using GidSeq = decltype(std::declval<rmw_dds_common::msg::NodeEntitiesInfo>().writer_gid_seq)

Public Functions

template<typename CallbackT>
inline void set_on_change_callback(CallbackT &&callback)

Set a callback that will be called when the state of the object changes.

Parameters:

callback – callback to be called.

void clear_on_change_callback()

Clear previously registered “on change” callback.

RCUTILS_DEPRECATED_WITH_MSG ("Migrate to using the version of this function taking a type hash.") bool add_reader(const rmw_gid_t &reader_gid

Add a data reader based on discovery.

See add_reader with rosidl_type_hash_t, whose other parameters match these.

RCUTILS_DEPRECATED_WITH_MSG ("Migrate to using the version of this function taking a type hash.") bool add_entity(const rmw_gid_t &gid

Add a data reader or writer.

See add_entity with rosidl_type_hash_t, whose other parameters match these.