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

DDS_PropertyQosPolicy	value
	<<basic>> <<extension>> Sequence of properties.

Advanced Settings

DDS_UserDataQosPolicy	value
	<<spec>> a sequence of octets
DDS_GroupDataQosPolicy	value
	<<spec>> a sequence of octets
DDS_TypeSupportQosPolicy	plugin_data
	[DEPRECATED] <<extension>> Value to pass into the type plugin's de-/serialization function
DDS_DomainParticipantResourceLimitsQosPolicy	participant_user_data_max_length
	<<extension>> Maximum length of user data in DDS_DomainParticipantQos and DDS_ParticipantBuiltinTopicData
DDS_DomainParticipantResourceLimitsQosPolicy	topic_data_max_length
	<<extension>> Maximum length of topic data in DDS_TopicQos, DDS_TopicBuiltinTopicData, DDS_PublicationBuiltinTopicData and DDS_SubscriptionBuiltinTopicData
DDS_DomainParticipantResourceLimitsQosPolicy	publisher_group_data_max_length
	<<extension>> Maximum length of group data in DDS_PublisherQos and DDS_PublicationBuiltinTopicData
DDS_DomainParticipantResourceLimitsQosPolicy	subscriber_group_data_max_length
	<<extension>> Maximum length of group data in DDS_SubscriberQos and DDS_SubscriptionBuiltinTopicData
DDS_DomainParticipantResourceLimitsQosPolicy	writer_user_data_max_length
	<<extension>> Maximum length of user data in DDS_DataWriterQos and DDS_PublicationBuiltinTopicData
DDS_DomainParticipantResourceLimitsQosPolicy	reader_user_data_max_length
	<<extension>> Maximum length of user data in DDS_DataReaderQos and DDS_SubscriptionBuiltinTopicData
DDS_DomainParticipantResourceLimitsQosPolicy	participant_property_list_max_length
	<<extension>> Maximum number of properties associated with the DDSDomainParticipant.
DDS_DomainParticipantResourceLimitsQosPolicy	participant_property_string_max_length
	<<extension>> Maximum string length of the properties associated with the DDSDomainParticipant.
DDS_DomainParticipantResourceLimitsQosPolicy	writer_property_list_max_length
	<<extension>> Maximum number of properties associated with a DDSDataWriter.
DDS_DomainParticipantResourceLimitsQosPolicy	writer_property_string_max_length
	<<extension>> Maximum string length of the properties associated with a DDSDataWriter.
DDS_DomainParticipantResourceLimitsQosPolicy	reader_property_list_max_length
	<<extension>> Maximum number of properties associated with a DDSDataReader.
DDS_DomainParticipantResourceLimitsQosPolicy	reader_property_string_max_length
	<<extension>> Maximum string length of the properties associated with a DDSDataReader.