Flow Control

Use these QoS fields to configure features which help to control the rate at which data is sent, preventing network congestion.

Use these QoS fields to configure features which help to control the rate at which data is sent, preventing network congestion.

Basic Settings

DDS_ReliabilityQosPolicy	max_blocking_time
	<<basic>> <<spec>> The maximum time a DataWriter can block on a write() call.
DDS_PublishModeQosPolicy	kind
	<<basic>> <<extension>> Publishing mode
DDS_RtpsReliableWriterProtocol_t	min_send_window_size
	<<basic>> <<extension>> Minimum size of send window of unacknowledged samples
DDS_RtpsReliableWriterProtocol_t	max_send_window_size
	<<basic>> <<extension>> Maximum size of send window of unacknowledged samples

Advanced Settings

DDS_PublishModeQosPolicy	flow_controller_name
	<<extension>> Name of the associated flow controller
DDS_PublishModeQosPolicy	priority
	<<extension>> Publication priority
DDS_AsynchronousPublisherQosPolicy	disable_asynchronous_write
	[DEPRECATED] <<extension>> Disable asynchronous publishing.
DDS_DomainParticipantResourceLimitsQosPolicy	outstanding_asynchronous_sample_allocation
	<<extension>> Allocation settings applied to the maximum number of samples (from all DDSDataWriter) waiting to be asynchronously written.
DDS_DomainParticipantResourceLimitsQosPolicy	flow_controller_allocation
	<<extension>> Allocation settings applied to flow controllers.
DDS_DomainParticipantResourceLimitsQosPolicy	flow_controller_hash_buckets
	[DEPRECATED] <<extension>> Number of hash buckets for flow controllers.
DDS_DiscoveryConfigQosPolicy	publication_writer_publish_mode
	<<extension>> Publish mode policy for the built-in publication writer.
DDS_DiscoveryConfigQosPolicy	subscription_writer_publish_mode
	<<extension>> Publish mode policy for the built-in subscription writer.
DDS_DiscoveryConfigQosPolicy	asynchronous_publisher
	<<extension>> Asynchronous publishing settings for the discovery DDSPublisher and all entities that are created by it.
DDS_DiscoveryConfigQosPolicy	service_request_writer_publish_mode
	<<extension>> Publish mode policy for the built-in service request writer.
DDS_DiscoveryConfigQosPolicy	secure_volatile_writer_publish_mode
	<<extension>> Publish mode policy for the built-in secure volatile writer.
DDS_DiscoveryConfigQosPolicy	participant_configuration_writer_publish_mode
	<<extension>> Publish mode policy for the built-in participant configuration writer.
DDS_RtpsReliableWriterProtocol_t	max_bytes_per_nack_response
	<<extension>> The maximum total message size when resending rejected samples or data fragments.
DDS_RtpsReliableWriterProtocol_t	send_window_update_period
	<<extension>> Period in which send window may be dynamically changed
DDS_RtpsReliableWriterProtocol_t	send_window_increase_factor
	<<extension>> Increases send window size by this percentage when reacting dynamically to network conditions
DDS_RtpsReliableWriterProtocol_t	send_window_decrease_factor
	<<extension>> Decreases send window size by this percentage when reacting dynamically to network conditions
DDS_RtpsReliableWriterProtocol_t	disable_repair_piggyback_heartbeat
	<<extension>> Prevents piggyback heartbeats from being sent with repair samples