rti::core::status::ReliableReaderActivityChangedStatus Class Reference

<<extension>> Information about the status dds::core::status::StatusMask::reliable_reader_activity_changed() More...

#include <Status.hpp>

Inherits rti::core::NativeValueType< T, NATIVE_T, ADAPTER >.

Public Member Functions
EventCount32	active_count () const
	The current number of reliable readers currently matched with this reliable writer.
EventCount32	inactive_count () const
	The number of reliable readers that have been dropped by this reliable writer because they failed to send acknowledgements in a timely fashion.
dds::core::InstanceHandle	last_instance_handle () const
	The instance handle of the last reliable remote reader to be determined inactive.

Detailed Description

<<extension>> Information about the status dds::core::status::StatusMask::reliable_reader_activity_changed()

Entity:

dds::pub::DataWriter

Listener:

dds::pub::DataWriterListener

This status is the reciprocal status to the dds::core::status::LivelinessChangedStatus on the reader. It is different than the dds::core::status::LivelinessLostStatus on the writer in that the latter informs the writer about its own liveliness; this status informs the writer about the "liveliness" (activity) of its matched readers.

All counts in this status will remain at zero for best effort writers.

Member Function Documentation

EventCount32 rti::core::status::ReliableReaderActivityChangedStatus::active_count ( ) const

inline

The current number of reliable readers currently matched with this reliable writer.

EventCount32 rti::core::status::ReliableReaderActivityChangedStatus::inactive_count ( ) const

inline

The number of reliable readers that have been dropped by this reliable writer because they failed to send acknowledgements in a timely fashion.

A reader is considered to be inactive after is has been sent heartbeats rti::core::RtpsReliableWriterProtocol::max_heartbeat_retries times, each heartbeat having been separated from the previous by the current heartbeat period.

dds::core::InstanceHandle rti::core::status::ReliableReaderActivityChangedStatus::last_instance_handle ( ) const

inline

The instance handle of the last reliable remote reader to be determined inactive.