RTI Connext DDS Micro C++ API  Version 3.0.2
 All Classes Files Functions Variables Typedefs Enumerations Enumerator Groups
HISTORY

Specifies the behavior of RTI Connext DDS Micro in the case where the value of an instance changes (one or more times) before it can be successfully communicated to one or more existing subscribers. More...

Classes

struct  DDS_HistoryQosPolicy
 <<cert>> Specifies the behavior of RTI Connext DDS Micro in the case where the value of a sample changes (one or more times) before it can be successfully communicated to one or more existing subscribers. More...

Enumerations

enum  DDS_HistoryQosPolicyKind { DDS_KEEP_LAST_HISTORY_QOS }
 Kinds of history. More...

Variables

const char *const DDS_HISTORY_QOS_POLICY_NAME
 Stringified human-readable name for DDS_HistoryQosPolicy.

Detailed Description

Specifies the behavior of RTI Connext DDS Micro in the case where the value of an instance changes (one or more times) before it can be successfully communicated to one or more existing subscribers.


Enumeration Type Documentation

Kinds of history.

QoS:
DDS_HistoryQosPolicy
Enumerator:
DDS_KEEP_LAST_HISTORY_QOS 

[default] Keep the last depth samples.

On the publishing side, RTI Connext DDS Micro will only attempt to keep the most recent depth samples of each instance of data (identified by its key) managed by the DDSDataWriter.

On the subscribing side, the DDSDataReader will only attempt to keep the most recent depth samples received for each instance (identified by its key) until the application takes them via the DDSDataReader 's take() operation.


Variable Documentation

const char* const DDS_HISTORY_QOS_POLICY_NAME

Stringified human-readable name for DDS_HistoryQosPolicy.


RTI Connext DDS Micro C++ API Version 3.0.2 Copyright © Thu Dec 12 2019 Real-Time Innovations, Inc