DDS_TopicQos Struct Reference
[Topics]

QoS policies supported by a DDS_Topic entity. More...


Data Fields

struct DDS_TopicDataQosPolicy topic_data
 Topic data policy, TOPIC_DATA.
struct DDS_DurabilityQosPolicy durability
 Durability policy, DURABILITY.
struct
DDS_DurabilityServiceQosPolicy 
durability_service
 DurabilityService policy, DURABILITY_SERVICE.
struct DDS_DeadlineQosPolicy deadline
 Deadline policy, DEADLINE.
struct DDS_LatencyBudgetQosPolicy latency_budget
 Latency budget policy, LATENCY_BUDGET.
struct DDS_LivelinessQosPolicy liveliness
 Liveliness policy, LIVELINESS.
struct DDS_ReliabilityQosPolicy reliability
 Reliability policy, RELIABILITY.
struct
DDS_DestinationOrderQosPolicy 
destination_order
 Destination order policy, DESTINATION_ORDER.
struct DDS_HistoryQosPolicy history
 History policy, HISTORY.
struct DDS_ResourceLimitsQosPolicy resource_limits
 Resource limits policy, RESOURCE_LIMITS.
struct
DDS_TransportPriorityQosPolicy 
transport_priority
 Transport priority policy, TRANSPORT_PRIORITY.
struct DDS_LifespanQosPolicy lifespan
 Lifespan policy, LIFESPAN.
struct DDS_OwnershipQosPolicy ownership
 Ownership policy, OWNERSHIP.


Detailed Description

QoS policies supported by a DDS_Topic entity.

You must set certain members in a consistent manner:

length of DDS_TopicQos::topic_data .value <= DDS_DomainParticipantQos::resource_limits .topic_data_max_length

If any of the above are not true, DDS_Topic_set_qos, DDS_Topic_set_qos_with_profile and DDS_DomainParticipant_set_default_topic_qos will fail with DDS_RETCODE_INCONSISTENT_POLICY and DDS_DomainParticipant_create_topic will return NULL.

Entity:
DDS_Topic
See also:
QoS Policies allowed ranges within each Qos.

Field Documentation

Topic data policy, TOPIC_DATA.

Durability policy, DURABILITY.

DurabilityService policy, DURABILITY_SERVICE.

Deadline policy, DEADLINE.

Latency budget policy, LATENCY_BUDGET.

Liveliness policy, LIVELINESS.

Reliability policy, RELIABILITY.

Destination order policy, DESTINATION_ORDER.

History policy, HISTORY.

Resource limits policy, RESOURCE_LIMITS.

Transport priority policy, TRANSPORT_PRIORITY.

Lifespan policy, LIFESPAN.

Ownership policy, OWNERSHIP.


RTI Data Distribution Service C API Version 4.5e Copyright © 23 Oct 2011 Real-Time Innovations, Inc