DDS_DataReaderProtocolQosPolicy Struct Reference

<<eXtension>> Protocol that applies only to DDSDataReader instances. More...

#include <dds_c_infrastructure.h>

Public Attributes
DDS_UnsignedLong	rtps_object_id
	The RTPS Object ID.
struct DDS_RtpsReliableReaderProtocol_t	rtps_reliable_reader
	RTPS protocol-related configuration settings for the RTPS reliable reader associated with a DDSDataReader. This parameter only has an effect if the reader is configured with DDS_RELIABLE_RELIABILITY_QOS.
DDS_Boolean	propagate_dispose_of_unregistered_instances
	<<eXtension>> Indicates whether or not an instance can move to the DDS_NOT_ALIVE_DISPOSED_INSTANCE_STATE state without being in the DDS_ALIVE_INSTANCE_STATE state.

Detailed Description

<<eXtension>> Protocol that applies only to DDSDataReader instances.

This QoS policy is an extension to the DDS standard.

Entity:

DDSDataReader

Properties:

RxO = N/A
Changeable = NO

Member Data Documentation

rtps_object_id

DDS_UnsignedLong DDS_DataReaderProtocolQosPolicy::rtps_object_id

The RTPS Object ID.

This value is used to determine the RTPS object ID of a DDSDataReader according to the DDS-RTPS Interoperability Wire Protocol.

Only the last 3 bytes are used; the most significant byte is ignored.

[default] DDS_RTPS_AUTO_ID

[range] [0,0x00ffffff]

rtps_reliable_reader

struct DDS_RtpsReliableReaderProtocol_t DDS_DataReaderProtocolQosPolicy::rtps_reliable_reader

RTPS protocol-related configuration settings for the RTPS reliable reader associated with a DDSDataReader. This parameter only has an effect if the reader is configured with DDS_RELIABLE_RELIABILITY_QOS.

For details, refer to the DDS_RtpsReliableReaderProtocol_t.

[default]
nack_period 50 ms;

propagate_dispose_of_unregistered_instances

DDS_Boolean DDS_DataReaderProtocolQosPolicy::propagate_dispose_of_unregistered_instances

<<eXtension>> Indicates whether or not an instance can move to the DDS_NOT_ALIVE_DISPOSED_INSTANCE_STATE state without being in the DDS_ALIVE_INSTANCE_STATE state.

This field only applies to keyed readers.

When the field is set to DDS_BOOLEAN_TRUE, the DDSDataReader will receive dispose notifications even if the instance has received zero samples.

When the field is set to DDS_BOOLEAN_FALSE, the DDSDataReader will not receive dispose notifications unless the instance has received at least one sample.

NOTE: The default behavior in Connext Professional is DDS_BOOLEAN_FALSE.

[default] DDS_BOOLEAN_TRUE

immutableinstance_lifecycle