QoS Examples¶

Examples of common QoS configurations.

Reliable Command Channel¶

auto qos = astutedds::dcps::DataWriterQosBuilder()
    .reliability(astutedds::dcps::ReliabilityQosPolicyKind::RELIABLE_RELIABILITY_QOS)
    .durability(astutedds::dcps::DurabilityQosPolicyKind::TRANSIENT_LOCAL_DURABILITY_QOS)
    .history(astutedds::dcps::HistoryQosPolicyKind::KEEP_ALL_HISTORY_QOS)
    .build();

Best-Effort Sensor Stream¶

auto qos = astutedds::dcps::DataWriterQosBuilder()
    .reliability(astutedds::dcps::ReliabilityQosPolicyKind::BEST_EFFORT_RELIABILITY_QOS)
    .durability(astutedds::dcps::DurabilityQosPolicyKind::VOLATILE_DURABILITY_QOS)
    .history(astutedds::dcps::HistoryQosPolicyKind::KEEP_LAST_HISTORY_QOS, 1)
    .build();

State Synchronization¶

auto qos = astutedds::dcps::DataWriterQosBuilder()
    .reliability(astutedds::dcps::ReliabilityQosPolicyKind::RELIABLE_RELIABILITY_QOS)
    .durability(astutedds::dcps::DurabilityQosPolicyKind::TRANSIENT_LOCAL_DURABILITY_QOS)
    .history(astutedds::dcps::HistoryQosPolicyKind::KEEP_LAST_HISTORY_QOS, 1)
    .build();

For more examples, see the QoS Usage Guide.