Liveliness

Use these QoS fields to manage the liveliness of participants and endpoints, ensuring active communication and timely updates of the system state.

Use these QoS fields to manage the liveliness of participants and endpoints, ensuring active communication and timely updates of the system state.

dds::core::policy::Liveliness	kind
	<<basic>> <<spec>> The kind of liveliness desired.
dds::core::policy::Liveliness	lease_duration
	<<basic>> <<spec>> The duration within which a dds::pub::DataWriter must be asserted, or else it is assumed to be not alive.
dds::core::policy::Liveliness	assertions_per_lease_duration
	<<basic>> <<extension>> The number of assertions a dds::pub::DataWriter will send during a its dds::core::policy::Liveliness::lease_duration.
rti::core::policy::DataReaderResourceLimits	autopurge_remote_not_alive_writer_delay
	<<extension>> Maximum duration for which the dds::sub::DataReader will maintain information regarding a dds::pub::DataWriter once the dds::pub::DataWriter has become not alive.
rti::core::policy::DiscoveryConfig	participant_liveliness_lease_duration
	<<basic>> <<extension>> The liveliness lease duration for the participant.
rti::core::policy::DiscoveryConfig	participant_liveliness_assert_period
	<<basic>> <<extension>> The period to assert liveliness for the participant.
rti::core::policy::DiscoveryConfig	remote_participant_purge_kind
	[DEPRECATED] <<extension>> The participant's behavior for maintaining knowledge of remote participants (and their contained entities) with which discovery communication has been lost.
rti::core::policy::DiscoveryConfig	max_liveliness_loss_detection_period
	[DEPRECATED] <<extension>> The maximum amount of time between when a remote entity stops maintaining its liveliness and when the matched local entity realizes that fact.
rti::core::policy::DiscoveryConfig	participant_message_writer
	<<extension>> RTPS protocol-related configuration settings for the RTPS reliable writer associated with the built-in participant message writer. This parameter only has effect if the matching participant message reader is configured with dds::core::policy::ReliabilityKind_def::RELIABLE dds::core::policy::ReliabilityKind_def.
rti::core::policy::DiscoveryConfig	participant_message_reader_reliability_kind
	[DEPRECATED] <<extension>> Reliability policy for a built-in participant message reader.
rti::core::policy::DiscoveryConfig	participant_message_reader
	<<extension>> RTPS reliable reader protocol-related configuration settings for a built-in participant message reader. This parameter only has effect if rti::core::policy::DiscoveryConfig::participant_message_reader_reliability_kind is set to dds::core::policy::ReliabilityKind_def::RELIABLE.
rti::core::policy::RtpsReliableWriterProtocol	max_heartbeat_retries
	<<extension>> The maximum number of periodic heartbeat retries before marking a remote reader as inactive.
rti::core::policy::RtpsReliableWriterProtocol	inactivate_nonprogressing_readers
	<<extension>> Whether to treat remote readers as inactive when their NACKs do not progress