Indicates the level of reliability offered/requested by RTI Connext. More...

Classes
struct	DDS::ReliabilityQosPolicy
	Indicates the level of reliability offered/requested by RTI Connext. More...

Enumerations
enum	DDS::ReliabilityQosPolicyKind : UINT32 { DDS::ReliabilityQosPolicyKind::BEST_EFFORT_RELIABILITY_QOS, DDS::ReliabilityQosPolicyKind::RELIABLE_RELIABILITY_QOS }
	Kinds of reliability. More...

enum	DDS::ReliabilityQosPolicyAcknowledgmentModeKind : UINT32 { DDS::ReliabilityQosPolicyAcknowledgmentModeKind::PROTOCOL_ACKNOWLEDGEMENT_MODE, DDS::ReliabilityQosPolicyAcknowledgmentModeKind::APPLICATION_AUTO_ACKNOWLEDGEMENT_MODE , DDS::ReliabilityQosPolicyAcknowledgmentModeKind::APPLICATION_EXPLICIT_ACKNOWLEDGEMENT_MODE }
	<<extension>> Kinds of acknowledgment. More...

Functions
static System::String ^	DDS::ReliabilityQosPolicy::get_reliability_qos_policy_name ()
	Stringified human-readable name for DDS::ReliabilityQosPolicy. More...

Detailed Description

Indicates the level of reliability offered/requested by RTI Connext.

Enumeration Type Documentation

◆ ReliabilityQosPolicyKind

enum DDS::ReliabilityQosPolicyKind : UINT32

strong

Kinds of reliability.

QoS:: DDS::ReliabilityQosPolicy

Enumerator

BEST_EFFORT_RELIABILITY_QOS

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

Presumably new values for the samples are generated often enough that it is not necessary to re-send or acknowledge any samples.

[default] for DDS::DataReader and DDS::Topic

RELIABLE_RELIABILITY_QOS

Specifies RTI Connext will attempt to deliver all samples in its history. Missed samples may be retried.

In steady-state (no modifications communicated via the DDS::DataWriter), RTI Connext guarantees that all samples in the DDS::DataWriter history will eventually be delivered to all the DDS::DataReader objects (subject to timeouts that indicate loss of communication with a particular DDS::Subscriber).

Outside steady state, the HISTORY and RESOURCE_LIMITS policies will determine how samples become part of the history and whether samples can be discarded from it.

[default] for DDS::DataWriter

◆ ReliabilityQosPolicyAcknowledgmentModeKind

enum DDS::ReliabilityQosPolicyAcknowledgmentModeKind : UINT32

strong

<<extension>> Kinds of acknowledgment.

QoS:: DDS::ReliabilityQosPolicy

Enumerator

PROTOCOL_ACKNOWLEDGEMENT_MODE

Samples are acknowledged by RTPS protocol.

Samples are acknowledged according to the Real-Time Publish-Subscribe (RTPS) interoperability protocol.

APPLICATION_AUTO_ACKNOWLEDGEMENT_MODE

Samples are acknowledged automatically after a subscribing application has accessed them.

A sample received by a DDS::TypedDataReader is acknowledged after the subscribing application accesses it, either through calling DDS::TypedDataReader::take or DDS::TypedDataReader::read on the DDS sample. If the read or take operation loans the samples, the acknowledgment is done after DDS::TypedDataReader::return_loan is called. Otherwise, for read or take operations that make a copy, acknowledgment is done after the read or take operations are executed.

APPLICATION_EXPLICIT_ACKNOWLEDGEMENT_MODE

Samples are acknowledged after the subscribing application explicitly calls acknowledge on the samples.

Samples received by a DDS::DataReader are explicitly acknowledged by the subscribing application, after it calls either DDS::DataReader::acknowledge_all or DDS::DataReader::acknowledge_sample.

Function Documentation

◆ get_reliability_qos_policy_name()

static System::String ^ DDS::ReliabilityQosPolicy::get_reliability_qos_policy_name ( )

inlinestatic

Stringified human-readable name for DDS::ReliabilityQosPolicy.

Classes