Application-Defined Metadata

This page lists QoS fields that can be used to send application-specific data during participant and endpoint discovery.

This page lists QoS fields that can be used to send application-specific data during participant and endpoint discovery.

There are also various resource limits related to these QoS which are also listed below.

Basic Settings

rti::core::policy::Property	value
	<<basic>> <<extension>> Sequence of properties.

Advanced Settings

dds::core::policy::UserData	value
	<<spec>> a sequence of octets
dds::core::policy::GroupData	value
	<<spec>> a sequence of octets
rti::core::policy::TypeSupport	plugin_data
	[DEPRECATED] <<extension>> Value to pass into the type plugin's de-/serialization function
rti::core::policy::DomainParticipantResourceLimits	participant_user_data_max_length
	<<extension>> Maximum length of user data in dds::domain::qos::DomainParticipantQos and dds::topic::ParticipantBuiltinTopicData
rti::core::policy::DomainParticipantResourceLimits	topic_data_max_length
	<<extension>> Maximum length of topic data in dds::topic::qos::TopicQos, dds::topic::TopicBuiltinTopicData, dds::topic::PublicationBuiltinTopicData and dds::topic::SubscriptionBuiltinTopicData
rti::core::policy::DomainParticipantResourceLimits	publisher_group_data_max_length
	<<extension>> Maximum length of group data in dds::pub::qos::PublisherQos and dds::topic::PublicationBuiltinTopicData
rti::core::policy::DomainParticipantResourceLimits	subscriber_group_data_max_length
	<<extension>> Maximum length of group data in dds::sub::qos::SubscriberQos and dds::topic::SubscriptionBuiltinTopicData
rti::core::policy::DomainParticipantResourceLimits	writer_user_data_max_length
	<<extension>> Maximum length of user data in dds::pub::qos::DataWriterQos and dds::topic::PublicationBuiltinTopicData
rti::core::policy::DomainParticipantResourceLimits	reader_user_data_max_length
	<<extension>> Maximum length of user data in dds::sub::qos::DataReaderQos and dds::topic::SubscriptionBuiltinTopicData
rti::core::policy::DomainParticipantResourceLimits	participant_property_list_max_length
	<<extension>> Maximum number of properties associated with the dds::domain::DomainParticipant.
rti::core::policy::DomainParticipantResourceLimits	participant_property_string_max_length
	<<extension>> Maximum string length of the properties associated with the dds::domain::DomainParticipant.
rti::core::policy::DomainParticipantResourceLimits	writer_property_list_max_length
	<<extension>> Maximum number of properties associated with a dds::pub::DataWriter.
rti::core::policy::DomainParticipantResourceLimits	writer_property_string_max_length
	<<extension>> Maximum string length of the properties associated with a dds::pub::DataWriter.
rti::core::policy::DomainParticipantResourceLimits	reader_property_list_max_length
	<<extension>> Maximum number of properties associated with a dds::sub::DataReader.
rti::core::policy::DomainParticipantResourceLimits	reader_property_string_max_length
	<<extension>> Maximum string length of the properties associated with a dds::sub::DataReader.