47.13 LATENCYBUDGET QoS Policy
This QosPolicy can be used by a DDS implementation to change how it processes and sends data that has low latency requirements. The DDS specification does not mandate whether or how this parameter is used. Connext uses it to prioritize the sending of asynchronously published data; see 46.1 ASYNCHRONOUS_PUBLISHER QosPolicy (DDS Extension).
This QosPolicy also applies to Topics. The Topic’s setting for the policy is ignored unless you explicitly make the DataWriter use it.
It contains the single member listed in Table 47.25 DDS_LatencyBudgetQosPolicy.
Type |
Field Name |
Description |
DDS_Duration_t |
duration |
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. |