DDS_DomainParticipantListener Struct Reference

<<interface>> Listener for participant status. More...

Data Fields
struct DDS_TopicListener	as_topiclistener
	A superclass instance of this DDS_DomainParticipantListener.
struct DDS_PublisherListener	as_publisherlistener
	A superclass instance of this DDS_DomainParticipantListener.
struct DDS_SubscriberListener	as_subscriberlistener
	A superclass instance of this DDS_DomainParticipantListener.

Detailed Description

<<interface>> Listener for participant status.

Entity:

DDS_DomainParticipant

Status:

Status Kinds

This is the interface that can be implemented by an application-provided class and then registered with the DDS_DomainParticipant such that the application can be notified by RTI Connext of relevant status changes.

The DDS_DomainParticipantListener interface extends all other Listener interfaces and has no additional operation beyond the ones defined by the more general listeners.

The purpose of the DDS_DomainParticipantListener is to be the listener of last resort that is notified of all status changes not captured by more specific listeners attached to the DDS_DomainEntity objects. When a relevant status change occurs, RTI Connext will first attempt to notify the listener attached to the concerned DDS_DomainEntity if one is installed. Otherwise, RTI Connext will notify the Listener attached to the DDS_DomainParticipant.

Important: Because a DDS_DomainParticipantListener may receive callbacks pertaining to many different entities, it is possible for the same listener to receive multiple callbacks simultaneously in different threads. (Such is not the case for listeners of other types.) It is therefore critical that users of this listener provide their own protection for any thread-unsafe activities undertaken in a DDS_DomainParticipantListener callback.

Note: Due to a thread-safety issue, the destruction of a DomainParticipantListener from an enabled DomainParticipant should be avoided – even if the DomainParticipantListener has been removed from the DomainParticipant. (This limitation does not affect the Java API.)

See Also

DDS_Listener

DDS_DomainParticipant_set_listener

Field Documentation

struct DDS_TopicListener DDS_DomainParticipantListener::as_topiclistener

A superclass instance of this DDS_DomainParticipantListener.

struct DDS_PublisherListener DDS_DomainParticipantListener::as_publisherlistener

A superclass instance of this DDS_DomainParticipantListener.

struct DDS_SubscriberListener DDS_DomainParticipantListener::as_subscriberlistener

A superclass instance of this DDS_DomainParticipantListener.