RTI Connext C API  Version 5.0.0
DDS_LivelinessChangedStatus Struct Reference

DDS_LIVELINESS_CHANGED_STATUS More...

Data Fields

DDS_Long alive_count
 The total count of currently alive DDS_DataWriter entities that write the DDS_Topic the DDS_DataReader reads.
 
DDS_Long not_alive_count
 The total count of currently not_alive DDS_DataWriter entities that write the DDS_Topic the DDS_DataReader reads.
 
DDS_Long alive_count_change
 The change in the alive_count since the last time the listener was called or the status was read.
 
DDS_Long not_alive_count_change
 The change in the not_alive_count since the last time the listener was called or the status was read.
 
DDS_InstanceHandle_t last_publication_handle
 An instance handle to the last remote writer to change its liveliness.
 

Detailed Description

DDS_LIVELINESS_CHANGED_STATUS

The DDS_DataReaderListener::on_liveliness_changed callback may be invoked for the following reasons:

Examples:
HelloWorld_subscriber.c.

Field Documentation

DDS_Long DDS_LivelinessChangedStatus::alive_count

The total count of currently alive DDS_DataWriter entities that write the DDS_Topic the DDS_DataReader reads.

DDS_Long DDS_LivelinessChangedStatus::not_alive_count

The total count of currently not_alive DDS_DataWriter entities that write the DDS_Topic the DDS_DataReader reads.

DDS_Long DDS_LivelinessChangedStatus::alive_count_change

The change in the alive_count since the last time the listener was called or the status was read.

DDS_Long DDS_LivelinessChangedStatus::not_alive_count_change

The change in the not_alive_count since the last time the listener was called or the status was read.

DDS_InstanceHandle_t DDS_LivelinessChangedStatus::last_publication_handle

An instance handle to the last remote writer to change its liveliness.


RTI Connext C API Version 5.0.0 Copyright © Thu Aug 30 2012 Real-Time Innovations, Inc