Use these QoS fields to configure the topic query feature.

See Querying Data, in the Core Libraries User's Manual, for more information about this feature.

Basic Settings


rti::core::policy::TopicQueryDispatch	publication_period
	<<basic>> <<extension>> Sets the periodic interval at which samples are published.

Advanced Settings


rti::core::policy::AsynchronousPublisher	disable_topic_query_publication
	[DEPRECATED] <<extension>> Disable topic query publication.

rti::core::policy::AsynchronousPublisher	topic_query_publication_thread
	<<extension>> Settings of the rti::sub::TopicQuery publication thread.

rti::core::policy::DataReaderResourceLimits	initial_topic_queries
	<<extension>> The initial number of TopicQueries allocated by a dds::sub::DataReader.

rti::core::policy::DataReaderResourceLimits	max_topic_queries
	<<extension>> The maximum number of active TopicQueries that a dds::sub::DataReader can create.

rti::core::policy::DataWriterResourceLimits	initial_active_topic_queries
	<<extension>> Represents the initial number of active topic queries a dds::pub::DataWriter will manage.

rti::core::policy::DataWriterResourceLimits	max_active_topic_queries
	<<extension>> Represents the maximum number of active topic queries a dds::pub::DataWriter will manage.

rti::core::policy::DomainParticipantResourceLimits	remote_topic_query_allocation
	<<extension>> Allocation settings applied to remote TopicQueries.

rti::core::policy::DomainParticipantResourceLimits	remote_topic_query_hash_buckets
	[DEPRECATED] <<extension>> Number of hash buckets for remote TopicQueries.

rti::core::policy::TopicQueryDispatch	enable
	<<extension>> Allows this writer to dispatch TopicQueries

rti::core::policy::TopicQueryDispatch	samples_per_period
	<<extension>> Sets the maximum number of samples to publish in each publication_period.