Contains the QoS policies More...

Data Structures
class	AllocationSettings
	Configures the allocation policy of a resource. More...

class	AllocationSettingsBuilder
	A modifiable type used to create an immutable AllocationSettings More...

class	AsynchronousPublisher
	Configures the mechanism that sends user data in an external middleware thread. More...

class	AsynchronousPublisherBuilder
	A modifiable type used to create an immutable AsynchronousPublisher More...

class	Availability
	configures the availability of data. More...

class	AvailabilityBuilder
	A modifiable type used to create an immutable Availability More...

class	Batch
	Configures mechanism for collecting multiple data samples to be sent in a single network packet. More...

class	BatchBuilder
	A modifiable type used to create an immutable Batch More...

class	BuiltinTopicReaderResourceLimits
	Built-in topic reader's resource limits. More...

class	BuiltinTopicReaderResourceLimitsBuilder
	A modifiable type used to create an immutable BuiltinTopicReaderResourceLimits More...

class	ChannelSettings
	Configures the properties of a channel in MultiChannel. More...

class	ChannelSettingsBuilder
	A modifiable type used to create an immutable ChannelSettings More...

class	CompressionSettings
	Configures data compression More...

class	CompressionSettingsBuilder
	A modifiable type used to create an immutable CompressionSettings More...

class	Database
	Configures various threads and resource limits used to control the internal database. More...

class	DatabaseBuilder
	A modifiable type used to create an immutable Database More...

class	DataReaderProtocol
	Configures Subscription.DataReader<T>-specific aspects of the RTPS protocol. More...

class	DataReaderProtocolBuilder
	A modifiable type used to create an immutable DataReaderProtocol More...

class	DataReaderResourceLimits
	Various settings that configure how a DataReader<T> allocates and uses physical memory for internal resources. More...

class	DataReaderResourceLimitsBuilder
	A modifiable type used to create an immutable DataReaderResourceLimits More...

class	DataRepresentation
	Specifies a list of representation identifiers and compression settings used by Publication.DataWriter<T> and Subscription.DataReader<T> entities to negotiate which data representation and compression settings to use. More...

class	DataRepresentationBuilder
	A modifiable type used to create an immutable DataRepresentation More...

class	DataTags
	Stores name-value (string) pairs that can be used to determine access permissions. More...

class	DataWriterProtocol
	Configures DDS on-the-wire protocol (RTPS). More...

class	DataWriterProtocolBuilder
	A modifiable type used to create an immutable DataWriterProtocol More...

class	DataWriterResourceLimits
	Configures how Publication.DataWriter<T>'s allocate and use physical memory for internal resources. More...

class	DataWriterResourceLimitsBuilder
	A modifiable type used to create an immutable DataWriterResourceLimits More...

class	Deadline
	Expresses the maximum duration (deadline) within which an More...

class	DeadlineBuilder
	A modifiable type used to create an immutable Deadline More...

class	DestinationOrder
	Controls how the middleware will deal with data sent by More...

class	DestinationOrderBuilder
	A modifiable type used to create an immutable DestinationOrder More...

class	Discovery
	Configures the mechanism used by the middleware to automatically discover and connect with new remote applications. More...

class	DiscoveryBuilder
	A modifiable type used to create an immutable Discovery More...

class	DiscoveryConfig
	Controls how often to send discovery packets, how to determine when participants are alive or dead, and resources used by the discovery mechanism. More...

class	DiscoveryConfigBuilder
	A modifiable type used to create an immutable DiscoveryConfig More...

class	DomainParticipantResourceLimits
	Various settings that configure how a Rti.Dds.Domain.DomainParticipant allocates and uses physical memory for internal resources, including the maximum sizes of various properties. More...

class	DomainParticipantResourceLimitsBuilder
	A modifiable type used to create an immutable DomainParticipantResourceLimits More...

class	Durability
	This QoS policy specifies whether or not DDS will store and deliver previously published data samples to new Subscription.DataReader<T> entities that join the network later. More...

class	DurabilityBuilder
	A modifiable type used to create an immutable Durability More...

class	DurabilityService
	Configures an external Persistence Service used for Datawriters with a Durability.Kind of DurabilityKind.Persistent or DurabilityKind.Transient More...

class	DurabilityServiceBuilder
	A modifiable type used to create an immutable DurabilityService More...

class	EndpointGroup
	Specifies a group of endpoints that can be collectively identified by a name and satisfied by a quorum. More...

class	EndpointGroupBuilder
	A modifiable type used to create an immutable EndpointGroup More...

class	EntityFactory
	Configures whether an Entity that acts as a factory automatically enables the entities it creates or not. More...

class	EntityName
	Assigns a name and a role name to a Domain.DomainParticipant, Publication.Publisher, Subscription.Subscriber, Publication.DataWriter<T> or Subscription.DataReader<T>. Except for Publication.Publisher and Subscription.Subscriber, these names will be visible during the discovery process and in RTI tools to help you visualize and debug your system. More...

class	EntityNameBuilder
	A modifiable type used to create an immutable EntityName More...

class	Event
	Configures the Domain.DomainParticipant event thread and the resources it uses. More...

class	EventBuilder
	A modifiable type used to create an immutable Event More...

class	ExclusiveArea
	Configures concurrency and deadlock prevention capabilities. More...

class	ExclusiveAreaBuilder
	A modifiable type used to create an immutable ExclusiveArea More...

class	GroupData
	Attaches a buffer of opaque data that is distributed by means of the built-in topics. More...

class	History
	Specifies the middleware behavior in the case where the value of a sample changes (one or more times) before it can be successfully communicated to one or more existing subscribers. More...

class	HistoryBuilder
	A modifiable type used to create an immutable History More...

class	InstanceReplacementSettings
	Instance replacement kind applied to each instance state. More...

class	InstanceReplacementSettingsBuilder
	A modifiable type used to create an immutable InstanceReplacementSettings More...

class	LatencyBudget
	Provides a hint as to the maximum acceptable delay from the time the data is written to the time it is received by the subscribing applications. More...

class	LatencyBudgetBuilder
	A modifiable type used to create an immutable LatencyBudget More...

class	Lifespan
	Specifies how long the data written by a Publication.DataWriter<T> is considered valid. More...

class	LifespanBuilder
	A modifiable type used to create an immutable Lifespan More...

class	Liveliness
	Configures the mechanism that allows Subscription.DataReader<T> entities to detect when Publication.DataWriter<T> entities become disconnected or "dead." More...

class	LivelinessBuilder
	A modifiable type used to create an immutable Liveliness More...

class	LocatorFilter
	Specifies the configuration of an individual channel within a MultiChannel Publication.DataWriter<T>. More...

class	LocatorFilters
	This policy is only applicable to the built-in topic for a Publication More...

class	Monitoring
	Enables the collection and distribution of telemetry data for a Connext application using RTI Monitoring Library 2.0 More...

class	MonitoringBuilder
	A modifiable type used to create an immutable Monitoring More...

class	MonitoringDedicatedParticipantSettings
	Configures the usage of a dedicated Participant to distribute the Connext application telemetry data More...

class	MonitoringDedicatedParticipantSettingsBuilder
	A modifiable type used to create an immutable MonitoringDedicatedParticipantSettings. More...

class	MonitoringDistributionSettings
	Configures the distribution of telemetry data More...

class	MonitoringDistributionSettingsBuilder
	A modifiable type used to create an immutable MonitoringDistributionSettings. More...

class	MonitoringEventDistributionSettings
	Configures the distribution of event metrics More...

class	MonitoringEventDistributionSettingsBuilder
	A modifiable type used to create an immutable MonitoringEventDistributionSettings. More...

class	MonitoringLoggingDistributionSettings
	Configures the usage of a dedicated Participant to distribute the Connext application telemetry data More...

class	MonitoringLoggingDistributionSettingsBuilder
	A modifiable type used to create an immutable MonitoringLoggingDistributionSettings. More...

class	MonitoringLoggingForwardingSettings
	Configures the forwarding levels of log messages for the different Rti.Config.LogFacility. More...

class	MonitoringLoggingForwardingSettingsBuilder
	A modifiable type used to create an immutable MonitoringLoggingForwardingSettings. More...

class	MonitoringMetricSelection
	Configures event and periodic metrics collection and distribution for a specific set of observable resources. More...

class	MonitoringMetricSelectionBuilder
	A modifiable type used to create an immutable MonitoringMetricSelection. More...

class	MonitoringPeriodicDistributionSettings
	Configures the distribution of periodic metrics More...

class	MonitoringPeriodicDistributionSettingsBuilder
	A modifiable type used to create an immutable MonitoringPeriodicDistributionSettings. More...

class	MonitoringTelemetryData
	Configures the telemetry data that will be distributed. More...

class	MonitoringTelemetryDataBuilder
	A modifiable type used to create an immutable. MonitoringTelemetryData. More...

class	MulticastMapping
	Maps topics to multicast addresses More...

class	MulticastMappingBuilder
	A modifiable type used to create an immutable MulticastMapping More...

struct	MulticastMappingFunction
	Identifies an external function More...

class	MultiChannel
	Configures DataWriter to send data using different multicast groups (addresses) based on data value. More...

class	MultiChannelBuilder
	A modifiable type used to create an immutable MultiChannel More...

class	Ownership
	Specifies whether it is allowed for multiple Publication.DataWriter<T> entities to write the same instance of the data and if so, how these modifications should be arbitrated. More...

class	OwnershipBuilder
	A modifiable type used to create an immutable Ownership More...

class	OwnershipStrength
	Specifies the value of the strength used to arbitrate among multiple Publication.DataWriter<T> objects that attempt to modify the same instance of a data type. More...

class	OwnershipStrengthBuilder
	A modifiable type used to create an immutable OwnershipStrength More...

class	Partition
	Set of strings that introduces logical partitions in DomainParticipant, Publisher, or Subscriber entities More...

class	PersistentStorageSettings
	Configures durable writer history and durable reader state. More...

class	PersistentStorageSettingsBuilder
	A modifiable type used to create an immutable PersistentStorageSettings. More...

class	Presentation
	Specifies how the samples representing changes to data instances are presented to a subscribing application. More...

class	PresentationBuilder
	A modifiable type used to create an immutable Presentation More...

class	Profile
	Configures the way that XML documents containing QoS profiles are loaded by a QosProvider More...

class	ProfileBuilder
	A modifiable type used to create an immutable Profile More...

class	Property
	Stores key-value string pairs that can configure certain Connext DDS parameters not exposed through QoS policies. It can also store and propagate through the discovery mechanism application-specific information associated with an Entity. More...

class	PublishMode
	Specifies whether a Publication.DataWriter<T> sends data synchronously or asynchronously. More...

class	PublishModeBuilder
	A modifiable type used to create an immutable PublishMode More...

class	ReaderDataLifecycle
	Controls how a Subscription.DataReader<T> manages the lifecycle of the data that it has received. More...

class	ReaderDataLifecycleBuilder
	A modifiable type used to create an immutable ReaderDataLifecycle More...

class	ReceiverPool
	Configures threads used by the middleware to receive and process data from transport (for example, UDP sockets). More...

class	ReceiverPoolBuilder
	A modifiable type used to create an immutable ReceiverPool More...

class	Reliability
	Configures the level of reliability offered or requested. More...

class	ReliabilityBuilder
	A modifiable type used to create an immutable Reliability More...

class	ResourceLimits
	Controls the amount of physical memory allocated for DDS entities, if dynamic allocations are allowed, and how they occur. Also controls memory usage among different instance values for keyed topics. More...

class	ResourceLimitsBuilder
	A modifiable type used to create an immutable ResourceLimits More...

class	RtpsReliableReaderProtocol
	Qos related to reliable reader protocol defined in RTPS. More...

class	RtpsReliableReaderProtocolBuilder
	A modifiable type used to create an immutable RtpsReliableReaderProtocol More...

class	RtpsReliableWriterProtocol
	QoS related to the reliable writer protocol defined in RTPS. More...

class	RtpsReliableWriterProtocolBuilder
	A modifiable type used to create an immutable RtpsReliableWriterProtocol More...

class	RtpsWellKnownPorts
	Configures the RTPS well-known ports mapping. More...

class	RtpsWellKnownPortsBuilder
	A modifiable type used to create an immutable RtpsWellKnownPorts More...

class	Service
	Identifies the Connext DDS Service that created an Entity, if any. More...

class	ServiceBuilder
	A modifiable type used to create an immutable Service More...

class	SystemResourceLimits
	Configures DomainParticipant-independent resources used by RTI Connext. Mainly used to change the maximum number of DomainParticipant entities that can be created within a single process (address space). More...

class	SystemResourceLimitsBuilder
	A modifiable type used to create an immutable SystemResourceLimits More...

class	ThreadSettings
	The properties of a thread of execution. More...

class	ThreadSettingsBuilder
	A modifiable type used to create an immutable ThreadSettings More...

class	TimeBasedFilter
	Allows a Subscription.DataReader<T> to indicate that it is not interested in all the sample updates that occur within a time period. More...

class	TimeBasedFilterBuilder
	A modifiable type used to create an immutable TimeBasedFilter More...

class	TopicData
	Attaches a buffer of opaque data that is distributed by means of the built-in topics. More...

class	TopicQueryDispatch
	Configures the ability of a Publication.DataWriter<T> to publish samples in response to a TopicQueryDispatch. More...

class	TopicQueryDispatchBuilder
	A modifiable type used to create an immutable TopicQueryDispatch More...

class	TransportBuiltin
	Specifies which built-in transports are used. More...

class	TransportBuiltinAlias
	String aliases for the built-in transports More...

class	TransportBuiltinBuilder
	A modifiable type used to create an immutable TransportBuiltin More...

class	TransportMulticast
	Specifies the multicast address on which a Subscription.DataReader<T> wants to receive its data. It can also specify a port number as well as a subset of the available (at the Domain.DomainParticipant level) transports with which to receive the multicast data. More...

class	TransportMulticastBuilder
	A modifiable type used to create an immutable TransportMulticast More...

class	TransportMulticastMapping
	Specifies a list of topic_expressions and multicast addresses that can be used by an Entity with a specific topic name to receive data. More...

class	TransportMulticastSettings
	Represents a list of multicast locators. More...

class	TransportMulticastSettingsBuilder
	A modifiable type used to create an immutable TransportMulticastSettings More...

class	TransportPriority
	Allows the application to take advantage of transports that are capable of sending messages with different priorities. More...

class	TransportPriorityBuilder
	A modifiable type used to create an immutable TransportPriority More...

class	TransportSelection
	Specifies the transports that a Publication.DataWriter<T> or a Subscription.DataReader<T> may use to send or receive data. More...

class	TransportSelectionBuilder
	A modifiable type used to create an immutable TransportSelection More...

class	TransportUnicast
	Specifies a subset of transports and a port number that can be used by an Entity to receive data. More...

class	TransportUnicastSettings
	Specifies a list of unicast locators and a unicast port. More...

class	TransportUnicastSettingsBuilder
	A modifiable type used to create an immutable TransportUnicastSettings More...

class	TypeConsistencyEnforcement
	Defines the rules that determine whether the type used to publish a given Topics.Topic<T> is consistent with that used to subscribe to it. More...

class	TypeConsistencyEnforcementBuilder
	A modifiable type used to create an immutable TypeConsistencyEnforcement More...

class	TypeSupport
	Used to attach application-specific value(s) to a Publication.DataWriter<T> or Subscription.DataReader<T>. More...

class	TypeSupportBuilder
	A modifiable type used to create an immutable TypeSupport More...

class	UserData
	Provides an area where your application can store additional information related to a Domain.DomainParticipant, Publication.DataWriter<T> or Subscription.DataReader<T> More...

class	WireProtocol
	Specifies the wire-protocol-related attributes for a Domain.DomainParticipant More...

class	WireProtocolBuilder
	A modifiable type used to create an immutable WireProtocol More...

class	WriterDataLifecycle
	Controls how a Publication.DataWriter<T> handles the lifecycle of the instances (keys) that it writes. More...

class	WriterDataLifecycleBuilder
	A modifiable type used to create an immutable WriterDataLifecycle More...

Enumerations
enum	CompressionId : uint { None = 0 , PublicationDefault = None , Zlib = (0x0001 << 0) , Bzip2 = (0x0001 << 1) , Lz4 = (0x0001 << 2) , SubscriptionDefault = All , All = Zlib \| Bzip2 \| Lz4 }
	A mask identifying compression algorithms to enable. More...

enum	InstanceReplacementKind { Unregistered , Alive , Disposed , AliveThenDisposed , DisposedThenAlive , AliveOrDisposed }
	Kinds of instance replacements for Rti.Dds.Publication.DataWriter<T>'s. More...

enum	DestinationOrderKind { ByReceptionTimestamp , BySourceTimestamp }
	Kinds of destination order More...

enum	DestinationOrderScopeKind { Instance , Topic }
	Scope of the ordering when used along with DestinationOrderKind.BySourceTimestamp. More...

enum	BuiltinPluginKind : int { None = 0 , BuiltinSpdp = 0x0001 << 0 , BuiltinSedp = 0x0001 << 1 , BuiltinSdp = BuiltinSpdp \| BuiltinSedp , BuiltinDpse = 0x0001 << 3 , BuiltinSpdp2 = 0x0001 << 4 , BuiltinSdp2 = BuiltinSpdp2 \| BuiltinSedp , Default = BuiltinSdp }
	Built-in discovery plugins that can be used. More...

enum	BuiltinChannelsKind { None = 0 , ServiceRequest = 0x0003 , Default = ServiceRequest , All = 0xffff }
	Built-in channels that can be enabled. More...

enum	RemoteParticipantPurgeKind { LivelinessBased , None }
	The participant's behavior for maintaining knowledge of remote participants (and their contained entities) with which discovery communication has been lost. More...

enum	IgnoredEntityReplacementKind { NoReplacement , NotAliveFirst }
	Available replacement policies for the ignored entities. More...

enum	HistoryKind { KeepLast , KeepAll }
	History kinds More...

enum	InstanceRemovalKind { NoInstanceRemoval , EmptyInstanceRemoval , FullyProcessedInstanceRemoval , AnyInstanceRemoval }
	Sets the kinds of instances that can be replaced when instance resource limits ResourceLimits.MaxInstances" are reached. More...

enum	LivelinessKind { Automatic , ManualByParticipant , ManualByTopic }
	Kinds of liveliness More...

enum	OwnershipKind { Shared , Exclusive }
	Kinds of ownership More...

enum	PersistentJournalKind { Delete = DDS_PersistentJournalKind.DDS_DELETE_PERSISTENT_JOURNAL , Truncate = DDS_PersistentJournalKind.DDS_TRUNCATE_PERSISTENT_JOURNAL , Persist = DDS_PersistentJournalKind.DDS_PERSIST_PERSISTENT_JOURNAL , Memory = DDS_PersistentJournalKind.DDS_MEMORY_PERSISTENT_JOURNAL , Wal = DDS_PersistentJournalKind.DDS_WAL_PERSISTENT_JOURNAL , Off = DDS_PersistentJournalKind.DDS_OFF_PERSISTENT_JOURNAL }
	Kinds of persistent journals. More...

enum	PersistentSynchronizationKind { Normal = DDS_PersistentSynchronizationKind.DDS_NORMAL_PERSISTENT_SYNCHRONIZATION , Full = DDS_PersistentSynchronizationKind.DDS_FULL_PERSISTENT_SYNCHRONIZATION , Off = DDS_PersistentSynchronizationKind.DDS_OFF_PERSISTENT_SYNCHRONIZATION }
	Kinds of persistent storage synchronization modes. More...

enum	PresentationAccessScopeKind : int { Instance , Topic , Group , HighestOffered }
	Access scope determines the largest scope spanning the entities for which the order and coherency of changes can be preserved. More...

enum	PublishModeKind { Synchronous , Asynchronous }
	Specifies how RTI Connext sends application data on the network. More...

enum	ReliabilityKind { BestEffort , Reliable }
	Kinds of reliability More...

enum	AcknowledgmentModeKind { Protocol = DDS_ReliabilityQosPolicyAcknowledgmentModeKind.DDS_PROTOCOL_ACKNOWLEDGMENT_MODE , ApplicationAuto = DDS_ReliabilityQosPolicyAcknowledgmentModeKind.DDS_APPLICATION_AUTO_ACKNOWLEDGMENT_MODE , ApplicationExplicit = DDS_ReliabilityQosPolicyAcknowledgmentModeKind.DDS_APPLICATION_EXPLICIT_ACKNOWLEDGMENT_MODE }
	Kinds of acknowledgment for reliable communication. More...

enum	InstanceStateConsistencyKind { None , RecoverState }
	Indicates whether instance state consistency is enabled. More...

enum	ServiceKind { None , Persistence , Queueing , Routing , Recording , Replay , DatabaseIntegration , WebIntegration , ObservabilityCollector }
	Kinds of RTI Services More...

enum	ThreadSettingsKind : uint { FloatingPoint = 0x01 , Stdio = 0x02 , RealtimePriority = 0x08 , PriorityEnforce = 0x10 , CancelAsynchronous = 0x20 }
	A collection of flags used to configure threads of execution. More...

enum	CpuRotationKind { None , RoundRobin }
	Determines how ThreadSettings.CpuList affects processor affinity for thread-related QoS policies that apply to multiple threads. More...

enum	TransportBuiltinMask { All = ~None , None = 0 , Udpv4 = 0x00000001 << 0 , Shmem = 0x00000001 << 1 , Default = Udpv4 \| Shmem , Udpv6 = 0x00000001 << 3 , Udpv4Wan = 0x00000001 << 4 }
	The built-in transports More...

enum	TransportMulticastKind { Automatic , UnicastOnly }
	Transport Multicast Policy Kind. More...

enum	TypeConsistencyKind { DisallowTypeCoercion , AllowTypeCoercion , AutoTypeCoercion }
	Kinds of type consistency. More...

enum	CdrPaddingKind { Zero , NotSet , Auto }
	Determines whether or not the padding bytes will be set to zero during CDR serialization. More...

enum	WireProtocolAutoKind { FromIp , FromMac , FromUuid }
	Mechanism to automatically calculate the GUID prefix (see WireProtocol.RtpsAutoIdKind) More...

Detailed Description

Contains the QoS policies

Enumeration Type Documentation

◆ CompressionId

enum Rti.Dds.Core.Policy.CompressionId : uint

A mask identifying compression algorithms to enable.

Enumerator
None	Disables user-data compression
PublicationDefault	Mask that contains the default compression algorithms enabled for a publication
Zlib	Selects the ZLIB compression algorithm
Bzip2	Selects the BZIP2 compression algorithm
Lz4	Selects the LZ4 compression algorithm
SubscriptionDefault	Mask that contains the default compression algorithms enabled for a subscription
All	Mask that enables all the supported built-in compression algorithms

◆ InstanceReplacementKind

enum Rti.Dds.Core.Policy.InstanceReplacementKind

Kinds of instance replacements for Rti.Dds.Publication.DataWriter<T>'s.

The full documentation is available in the C API: DDSDataWriterResourceLimitsInstanceReplacementKind

Enumerator
Unregistered	Allows a Publication.DataWriter<T> to reclaim unregistered acknowledged instances. The full documentation is available in the C API: `DDSDataWriterResourceLimitsInstanceReplacementKind_UNREGISTERED_INSTANCE_REPLACEMENT`
Alive	Allows a Publication.DataWriter<T> to reclaim alive, acknowledged instances. The full documentation is available in the C API: `DDSDataWriterResourceLimitsInstanceReplacementKind_ALIVE_INSTANCE_REPLACEMENT`
Disposed	Allows a Publication.DataWriter<T> to reclaim disposed acknowledged instances. The full documentation is available in the C API: `DDSDataWriterResourceLimitsInstanceReplacementKind_DISPOSED_INSTANCE_REPLACEMENT`
AliveThenDisposed	Allows a Publication.DataWriter<T> first to reclaim an alive, acknowledged instance, and then, if necessary, a disposed, acknowledged instance. The full documentation is available in the C API: `DDSDataWriterResourceLimitsInstanceReplacementKind_ALIVE_THEN_DISPOSED_INSTANCE_REPLACEMENT`
DisposedThenAlive	Allows a Publication.DataWriter<T> first to reclaim a disposed, acknowledged instance, and then, if necessary, an alive, acknowledged instance. The full documentation is available in the C API: `DDSDataWriterResourceLimitsInstanceReplacementKind_DISPOSED_THEN_ALIVE_INSTANCE_REPLACEMENT`
AliveOrDisposed	Allows a Publication.DataWriter<T> to reclaim either an alive acknowledged instance or a disposed acknowledged instance. The full documentation is available in the C API: `DDSDataWriterResourceLimitsInstanceReplacementKind_ALIVE_OR_DISPOSED_INSTANCE_REPLACEMENT`

◆ DestinationOrderKind

enum Rti.Dds.Core.Policy.DestinationOrderKind

Kinds of destination order

Enumerator

ByReceptionTimestamp

(Default) Indicates that data is ordered based on the reception time at each subscriber.

The full documentation is available in the C API: BY_RECEPTION_TIMESTAMP_DESTINATIONORDER_QOS

BySourceTimestamp

Indicates that data is ordered based on a timestamp placed at the source (by the middleware or by the application).

The full documentation is available in the C API: BY_SOURCE_TIMESTAMP_DESTINATIONORDER_QOS

◆ DestinationOrderScopeKind

enum Rti.Dds.Core.Policy.DestinationOrderScopeKind

Scope of the ordering when used along with DestinationOrderKind.BySourceTimestamp.

Enumerator

Instance

(Default) Indicates that data is ordered on a per-instance basis.

The full documentation is available in the C API: DDS_DestinationOrderQosPolicyScopeKind_INSTANCE_SCOPE_DESTINATIONORDER_QOS

Topic

(Default) Indicates that data is ordered on a per-topic basis.

The full documentation is available in the C API: DDS_DestinationOrderQosPolicyScopeKind_TOPIC_SCOPE_DESTINATIONORDER_QOS

◆ BuiltinPluginKind

enum Rti.Dds.Core.Policy.BuiltinPluginKind : int

Built-in discovery plugins that can be used.

Enumerator
None	No plugins kinds.
BuiltinSpdp	Simple participant discovery plugin.
BuiltinSedp	Simple endpoint discovery plugin.
BuiltinSdp	Simple discovery plugin.
BuiltinDpse	Dynamic Participant discovery, Static Endpoint discovery.
BuiltinSpdp2	Simple participant discovery plugin 2.0.
BuiltinSdp2	Simple discovery plugin 2.0.
Default	The default discovery plugin, same as BuiltinSdp.

◆ BuiltinChannelsKind

enum Rti.Dds.Core.Policy.BuiltinChannelsKind

Built-in channels that can be enabled.

Enumerator
None	No channels.
ServiceRequest	Service Request Channel.
Default	The default channels to enable, same as ServiceRequest.
All	All channels.

◆ RemoteParticipantPurgeKind

enum Rti.Dds.Core.Policy.RemoteParticipantPurgeKind

The participant's behavior for maintaining knowledge of remote participants (and their contained entities) with which discovery communication has been lost.

The full documentation is available in the C API: DDS_RemoteParticipantPurgeKind

Enumerator

LivelinessBased

Maintain knowledge of the remote participant for as long as it maintains its liveliness contract.

The full documentation is available in the C API: DDS_RemoteParticipantPurgeKind_LIVELINESS_BASED_REMOTE_PARTICIPANT_PURGE

None

Never "forget" a remote participant with which discovery communication has been lost.

The full documentation is available in the C API: DDS_RemoteParticipantPurgeKind_NO_REMOTE_PARTICIPANT_PURGE

◆ IgnoredEntityReplacementKind

enum Rti.Dds.Core.Policy.IgnoredEntityReplacementKind

Available replacement policies for the ignored entities.

The full documentation is available in the C API: DDSDomainParticipantResourceLimitsIgnoredEntityReplacementKind

Enumerator

NoReplacement

Default value for DomainParticipantResourceLimits.IgnoredEntityReplacement, no replacement is done, the ignore will fail if the ignored_entity table is full.

The full documentation is available in the C API: DDSDomainParticipantResourceLimitsIgnoredEntityReplacementKindNO_REPLACEMENT_IGNORED_ENTITY_REPLACEMENT

NotAliveFirst

If the ignored_entity table is full and if there is at least one ignored participant in the table, the participant record that has been not updated for the longest time will be replaced. Note that if the table is full and there are no participant records to replace, the ignore will fail.

The full documentation is available in the C API: DDSDomainParticipantResourceLimitsIgnoredEntityReplacementKindNOT_ALIVE_FIRST_IGNORED_ENTITY_REPLACEMENT

◆ HistoryKind

enum Rti.Dds.Core.Policy.HistoryKind

History kinds

Enumerator

KeepLast

Keep the last History.Depth samples.

The full documentation is available in the C API: KEEP_LAST_HISTORY_QOS

KeepAll

Keep all the samples.

The full documentation is available in the C API: KEEP_ALL_HISTORY_QOS

◆ InstanceRemovalKind

enum Rti.Dds.Core.Policy.InstanceRemovalKind

Sets the kinds of instances that can be replaced when instance resource limits ResourceLimits.MaxInstances" are reached.

The full documentation is available in the C API: DDS_DataReaderInstanceRemovalKind

Enumerator
NoInstanceRemoval	No instance can be removed. The full documentation is available in the C API: `DDS_DataReaderInstanceRemovalKind_NO_INSTANCE_REMOVAL`
EmptyInstanceRemoval	Only empty instances can be removed. The full documentation is available in the C API: `DDS_DataReaderInstanceRemovalKind_EMPTY_INSTANCE_REMOVAL`
FullyProcessedInstanceRemoval	Only fully-processed instances can be removed. The full documentation is available in the C API: `DDS_DataReaderInstanceRemovalKind_FULLY_PROCESSED_INSTANCE_REMOVAL`
AnyInstanceRemoval	Any instance can be removed. The full documentation is available in the C API: `DDS_DataReaderInstanceRemovalKind_ANY_INSTANCE_REMOVAL`

◆ LivelinessKind

enum Rti.Dds.Core.Policy.LivelinessKind

Kinds of liveliness

Enumerator

Automatic

(Default) The infrastructure will automatically signal for the writers at least as often as required by the writer's Liveliness.LeaseDuration

The full documentation is available in the C API: AUTOMATIC_LIVELINESS_QOS

ManualByParticipant

The infrastructure will assume that as long as at least one writer belonging to the participant (or the participant itself) has asserted its liveliness, then the other writers belonging to the same participant are also alive.

The full documentation is available in the C API: MANUAL_BY_PARTICIPANT_LIVELINESS_QOS

ManualByTopic

The infrastructure will only assume liveliness of a writer if the application has asserted liveliness of that writer.

The full documentation is available in the C API: MANUAL_BY_TOPIC_LIVELINESS_QOS

◆ OwnershipKind

enum Rti.Dds.Core.Policy.OwnershipKind

Kinds of ownership

The full documentation is available in the C API: DDSOwnershipQosPolicyKind

Enumerator

Shared

(Default) Indicates shared ownership for each instance among all writers.

The full documentation is available in the C API: DDSOwnershipQosPolicyKind_EXCLUSIVE_OWNERSHIP_QOS

Exclusive

Indicates that each instance can only be owned by one writer, but the owner of an instance can change dynamically

The full documentation is available in the C API: DDSOwnershipQosPolicyKind_EXCLUSIVE_OWNERSHIP_QOS

◆ PersistentJournalKind

enum Rti.Dds.Core.Policy.PersistentJournalKind

Kinds of persistent journals.

Enumerator
Delete	Deletes the rollback journal at the conclusion of each transaction. The full documentation is available in the C API: `DDS_PersistentJournalKind_DELETE_PERSISTENT_JOURNAL`
Truncate	Commits transactions by truncating the rollback journal to zero-length instead of deleting it. The full documentation is available in the C API: `DDS_PersistentJournalKind_TRUNCATE_PERSISTENT_JOURNAL`
Persist	Prevents the rollback journal from being deleted at the end of each transaction. Instead, the header of the journal is overwritten with zeros. The full documentation is available in the C API: `DDS_PersistentJournalKind_PERSIST_PERSISTENT_JOURNAL`
Memory	Stores the rollback journal in volatile RAM. This saves disk I/O. The full documentation is available in the C API: `DDS_PersistentJournalKind_MEMORY_PERSISTENT_JOURNAL`
Wal	Uses a write-ahead log instead of a rollback journal to implement transactions. The full documentation is available in the C API: `DDS_PersistentJournalKind_WAL_PERSISTENT_JOURNAL`
Off	Disables the rollback journal. The full documentation is available in the C API: `DDS_PersistentJournalKind_OFF_PERSISTENT_JOURNAL`

◆ PersistentSynchronizationKind

enum Rti.Dds.Core.Policy.PersistentSynchronizationKind

Kinds of persistent storage synchronization modes.

Enumerator

Normal

Data (e.g., new sample) is written to disk at critical moments.

The full documentation is available in the C API: DDS_PersistentSynchronizationKind_NORMAL_PERSISTENT_SYNCHRONIZATION

Full

Data (e.g., new sample) is written to physical disk immediately.

The full documentation is available in the C API: DDS_PersistentSynchronizationKind_FULL_PERSISTENT_SYNCHRONIZATION

Off

No synchronization is enforced.

The full documentation is available in the C API: DDS_PersistentSynchronizationKind_OFF_PERSISTENT_SYNCHRONIZATION

◆ PresentationAccessScopeKind

enum Rti.Dds.Core.Policy.PresentationAccessScopeKind : int

Access scope determines the largest scope spanning the entities for which the order and coherency of changes can be preserved.

Enumerator
Instance	Scope spans only a single instance
Topic	Scope spans all instances within the same writer (or reader) but not across instances in different writers (or readers)
Group	Scope spans all instances belonging to writers (or readers) within the same publisher (or subscriber)
HighestOffered	This value only applies to a subscriber. The subscriber will use the access scope specified by each publisher.

◆ PublishModeKind

enum Rti.Dds.Core.Policy.PublishModeKind

Specifies how RTI Connext sends application data on the network.

The full documentation is available in the C API: DDS_PublishModeQosPolicyKind

Enumerator

Synchronous

Indicates to send data synchronously.

The full documentation is available in the C API: SYNCHRONOUS_PUBLISH_MODE_QOS

Asynchronous

Indicates to send data asynchronously using a separate publishing thread.

The full documentation is available in the C API: ASYNCHRONOUS_PUBLISH_MODE_QOS

◆ ReliabilityKind

enum Rti.Dds.Core.Policy.ReliabilityKind

Kinds of reliability

Enumerator

BestEffort

Indicates that it is acceptable not to retry propagation of any samples.

The full documentation is available in the C API: DDSReliabilityQosPolicyKind_BEST_EFFORT_RELIABILITY_QOS

Reliable

Indicates that the middleware will attempt to deliver all samples in its history. Missed samples may be resent.

The full documentation is available in the C API: DDSReliabilityQosPolicyKind_RELIABLE_RELIABILITY_QOS

◆ AcknowledgmentModeKind

enum Rti.Dds.Core.Policy.AcknowledgmentModeKind

Kinds of acknowledgment for reliable communication.

Enumerator

Protocol

Samples are acknowledged at the RTPS protocol level

The full documentation is available in the C API: DDSReliabilityQosPolicyAcknowledgmentModeKindPROTOCOL_ACKNOWLEDGEMENT_MODE

ApplicationAuto

Samples are acknowledged at the application level, automatically after a subscribing application has accessed them.

The full documentation is available in the C API: DDSReliabilityQosPolicyAcknowledgmentModeKindAPPLICATION_AUTO_ACKNOWLEDGEMENT_MODE

ApplicationExplicit

Samples are individually acknowledged at the application level specifying each sequence number.

The full documentation is available in the C API: DDSReliabilityQosPolicyAcknowledgmentModeKindAPPLICATION_EXPLICIT_ACKNOWLEDGEMENT_MODE

◆ InstanceStateConsistencyKind

enum Rti.Dds.Core.Policy.InstanceStateConsistencyKind

Indicates whether instance state consistency is enabled.

Enumerator

None

Instance state consistency is not enabled. Instance states on the DataReader are not guaranteed to be correct after liveliness is regained after a disconnect.

Instance state is not restored on a DataReader after reconnecting with a DataWriter until the DataWriter sends a new sample.

When DataReaders rediscover DataWriters, they will not request updated instance state data. DataWriters always provide instance state data alongside each sample update regardless of this setting.

RecoverState

Instance state consistency is enabled. Instance states on the DataReader are guaranteed to be correct after liveliness is regained after a disconnect.

Instance state is restored on the DataReader after it reconnects with a DataWriter that has regained liveliness, even before the DataWriter sends a new sample.

When DataReaders rediscover DataWriters, they will request updated instance state data. DataWriters will respond to requests for updated instance state data and publish updates on the ServiceRequest channel. DataWriters still provide instance state data alongside each sample update regardless of this setting.

◆ ServiceKind

enum Rti.Dds.Core.Policy.ServiceKind

Kinds of RTI Services

Enumerator
None	The Entity wasn't created by a Service (default)
Persistence	The Entity was created by RTI Persistence Service
Queueing	The Entity was created by RTI Queueing Service
Routing	The Entity was created by RTI Routing Service
Recording	The Entity was created by RTI Recording Service
Replay	The Entity was created by RTI Replay Service
DatabaseIntegration	The Entity was created by RTI Database Integration Service
WebIntegration	The Entity was created by RTI Web Integration Service
ObservabilityCollector	The Entity was created by RTI Observability Collector Service

◆ ThreadSettingsKind

enum Rti.Dds.Core.Policy.ThreadSettingsKind : uint

A collection of flags used to configure threads of execution.

The full documentation is available in the C API: DDSThreadSettingsKind

Enumerator
FloatingPoint	Support floating point. The full documentation is available in the C API: `THREAD_SETTINGS_FLOATING_POINT`
Stdio	This thread can do standard io The full documentation is available in the C API: `THREAD_SETTINGS_STDIO`
RealtimePriority	This thread will run in real-time priority mode. The full documentation is available in the C API: `THREAD_SETTINGS_REALTIME_PRIORITY`
PriorityEnforce	Insist on the specified priority and fail if OS doesn't like it. The full documentation is available in the C API: `THREAD_SETTINGS_PRIORITY_ENFORCE`
CancelAsynchronous	Indicates to create the thread with the OS default stack size. If not supported, will use the platform default. The full documentation is available in the C API: `THREAD_SETTINGS_CANCEL_ASYNCHRONOUS`

◆ CpuRotationKind

enum Rti.Dds.Core.Policy.CpuRotationKind

Determines how ThreadSettings.CpuList affects processor affinity for thread-related QoS policies that apply to multiple threads.

The full documentation is available in the C API: DDSThreadSettingsCpuRotationKind

Enumerator

None

Any thread controlled by this QoS can run on any listed processor, as determined by OS scheduling.

The full documentation is available in the C API: THREAD_SETTINGS_CPU_NO_ROTATION

RoundRobin

Threads controlled by this QoS will be assigned one processor from the list in round-robin order.

The full documentation is available in the C API: THREAD_SETTINGS_CPU_RR_ROTATION

◆ TransportBuiltinMask

enum Rti.Dds.Core.Policy.TransportBuiltinMask

The built-in transports

Enumerator
All	Select all built-in transports
None	Select no built-in transport
Udpv4	Built-in UDPv4 transport
Shmem	Built-in shared memory transport
Default	Default selection: Udpv4 and Shmem
Udpv6	Built-in UDPv6 transport
Udpv4Wan	Built-in UDPv4 asymmetric transport

◆ TransportMulticastKind

enum Rti.Dds.Core.Policy.TransportMulticastKind

Transport Multicast Policy Kind.

The full documentation is available in the C API: DDS_TransportMulticastQosPolicyKind

Enumerator

Automatic

Selects the multicast address automatically.

The full documentation is available in the C API: DDS_TransportMulticastQosPolicyKind_AUTOMATIC_TRANSPORT_MULTICAST_QOS

UnicastOnly

Selects a unicast-only mode.

The full documentation is available in the C API: DDS_TransportMulticastQosPolicyKind_UNICAST_ONLY_TRANSPORT_MULTICAST_QOS

◆ TypeConsistencyKind

enum Rti.Dds.Core.Policy.TypeConsistencyKind

Kinds of type consistency.

The full documentation is available in the C API: DDS_TypeConsistencyKind

Enumerator

DisallowTypeCoercion

The Publication.DataWriter<T> and the Subscription.DataReader<T> must support the same data type in order for them to communicate.

The full documentation is available in the C API: DISALLOW_TYPE_COERCION

AllowTypeCoercion

The Publication.DataWriter<T> and the Subscription.DataReader<T> need not support the same data type in order for them to communicate as long as the Subscription.DataReader<T>'s type is assignable from the Publication.DataWriter<T>'s type.

The full documentation is available in the C API: ALLOW_TYPE_COERCION

AutoTypeCoercion

Equal to AllowTypeCoercion.

The full documentation is available in the C API: AUTO_TYPE_COERCION

◆ CdrPaddingKind

enum Rti.Dds.Core.Policy.CdrPaddingKind

Determines whether or not the padding bytes will be set to zero during CDR serialization.

The full documentation is available in the C API: DDS_CdrPaddingKind

Enumerator

Zero

Padding bytes will be set to zero during CDR serialization.

The full documentation is available in the C API: DDS_CdrPaddingKind_ZERO_CDR_PADDING

NotSet

Padding bytes will not be set to any value during CDR serialization.

The full documentation is available in the C API: DDS_CdrPaddingKind_NOT_SET_CDR_PADDING

Auto

By default, Domain.DomainParticipant's behavior is set to NotSet, and Publication.DataWriter<T>'s and Subscription.DataReader<T>'s inherit the behavior from the Domain.DomainParticipant.

The full documentation is available in the C API: DDS_CdrPaddingKind_AUTO_CDR_PADDING

◆ WireProtocolAutoKind

enum Rti.Dds.Core.Policy.WireProtocolAutoKind

Mechanism to automatically calculate the GUID prefix (see WireProtocol.RtpsAutoIdKind)

Enumerator

FromIp

Select the IP-based algorithm.

The full documentation is available in the C API: RTPS_AUTO_ID_FROM_IP

FromMac

Select the MAC-based algorithm.

The full documentation is available in the C API: RTPS_AUTO_ID_FROM_MAC

FromUuid

Select the UUID-based algorithm, which doesn't require a network interface.

The full documentation is available in the C API: RTPS_AUTO_ID_FROM_UUID

Data Structures

Enumerations

Detailed Description

Enumeration Type Documentation

◆ CompressionId

◆ InstanceReplacementKind

◆ DestinationOrderKind

◆ DestinationOrderScopeKind

◆ BuiltinPluginKind

◆ BuiltinChannelsKind

◆ RemoteParticipantPurgeKind

◆ IgnoredEntityReplacementKind

◆ HistoryKind

◆ InstanceRemovalKind

◆ LivelinessKind

◆ OwnershipKind

◆ PersistentJournalKind

◆ PersistentSynchronizationKind

◆ PresentationAccessScopeKind

◆ PublishModeKind

◆ ReliabilityKind

◆ AcknowledgmentModeKind

◆ InstanceStateConsistencyKind

◆ ServiceKind

◆ ThreadSettingsKind

◆ CpuRotationKind

◆ TransportBuiltinMask

◆ TransportMulticastKind

◆ TypeConsistencyKind

◆ CdrPaddingKind

◆ WireProtocolAutoKind