DDS_DataReaderQos Struct Reference
[DataReaders]

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

List of all members.

Public Attributes

struct DDS_DurabilityQosPolicy durability
 Durability policy, DURABILITY.
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_UserDataQosPolicy user_data
 User data policy, USER_DATA.
struct DDS_OwnershipQosPolicy ownership
 Ownership policy, OWNERSHIP.
struct DDS_TimeBasedFilterQosPolicy time_based_filter
 Time-based filter policy, TIME_BASED_FILTER.
struct
DDS_ReaderDataLifecycleQosPolicy 
reader_data_lifecycle
 Reader data lifecycle policy, READER_DATA_LIFECYCLE.
struct
DDS_DataReaderResourceLimitsQosPolicy 
reader_resource_limits
 <<eXtension>> DDSDataReader resource limits policy, DATA_READER_RESOURCE_LIMITS. This policy is an extension to the DDS standard.
struct
DDS_DataReaderProtocolQosPolicy 
protocol
 <<eXtension>> DDSDataReader protocol policy, DATA_READER_PROTOCOL
struct
DDS_TransportSelectionQosPolicy 
transport_selection
 <<eXtension>> Transport selection policy, TRANSPORT_SELECTION.
struct
DDS_TransportUnicastQosPolicy 
unicast
 <<eXtension>> Unicast transport policy, TRANSPORT_UNICAST.
struct
DDS_TransportMulticastQosPolicy 
multicast
 <<eXtension>> Multicast transport policy, TRANSPORT_MULTICAST.
struct DDS_PropertyQosPolicy property
 <<eXtension>> Property policy, PROPERTY.
struct DDS_AvailabilityQosPolicy availability
 <<eXtension>> Availability policy, AVAILABILITY.
struct DDS_EntityNameQosPolicy subscription_name
 <<eXtension>> EntityName policy, ENTITY_NAME.
struct DDS_TypeSupportQosPolicy type_support
 <<eXtension>> type support data, TYPESUPPORT.


Detailed Description

QoS policies supported by a DDSDataReader entity.

You must set certain members in a consistent manner:

DDS_DataReaderQos::deadline.period >= DDS_DataReaderQos::time_based_filter.minimum_separation

DDS_DataReaderQos::history.depth <= DDS_DataReaderQos::resource_limits.max_samples_per_instance

DDS_DataReaderQos::resource_limits.max_samples_per_instance <= DDS_DataReaderQos::resource_limits.max_samples DDS_DataReaderQos::resource_limits.initial_samples <= DDS_DataReaderQos::resource_limits.max_samples

DDS_DataReaderQos::resource_limits.initial_instances <= DDS_DataReaderQos::resource_limits.max_instances

DDS_DataReaderQos::reader_resource_limits.initial_remote_writers_per_instance <= DDS_DataReaderQos::reader_resource_limits.max_remote_writers_per_instance

DDS_DataReaderQos::reader_resource_limits.initial_infos <= DDS_DataReaderQos::reader_resource_limits.max_infos

DDS_DataReaderQos::reader_resource_limits.max_remote_writers_per_instance <= DDS_DataReaderQos::reader_resource_limits.max_remote_writers

DDS_DataReaderQos::reader_resource_limits.max_samples_per_remote_writer <= DDS_DataReaderQos::resource_limits.max_samples

length of DDS_DataReaderQos::user_data.value <= DDS_DomainParticipantQos::resource_limits.reader_user_data_max_length

If any of the above are not true, DDSDataReader::set_qos and DDSDataReader::set_qos_with_profile will fail with DDS_RETCODE_INCONSISTENT_POLICY


Member Data Documentation

Durability policy, DURABILITY.

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.

User data policy, USER_DATA.

Ownership policy, OWNERSHIP.

Time-based filter policy, TIME_BASED_FILTER.

Reader data lifecycle policy, READER_DATA_LIFECYCLE.

<<eXtension>> DDSDataReader resource limits policy, DATA_READER_RESOURCE_LIMITS. This policy is an extension to the DDS standard.

<<eXtension>> Transport selection policy, TRANSPORT_SELECTION.

Specifies the transports available for use by the DDSDataReader.

<<eXtension>> Unicast transport policy, TRANSPORT_UNICAST.

Specifies the unicast transport interfaces and ports on which messages can be received.

The unicast interfaces are used to receive messages from DDSDataWriter entities in the domain.

<<eXtension>> Multicast transport policy, TRANSPORT_MULTICAST.

Specifies the multicast group addresses and ports on which messages can be received.

The multicast addresses are used to receive messages from DDSDataWriter entities in the domain.

<<eXtension>> Property policy, PROPERTY.

<<eXtension>> Availability policy, AVAILABILITY.

<<eXtension>> EntityName policy, ENTITY_NAME.

<<eXtension>> type support data, TYPESUPPORT.

Optional value that is passed to a type plugin's on_endpoint_attached and deserialization functions.


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