LIVELINESS
[QoS Policies]

Specifies and configures the mechanism that allows DDS::DataReader entities to detect when DDS::DataWriter entities become disconnected or "dead.". More...

Classes
struct	DDS::LivelinessQosPolicy
	Specifies and configures the mechanism that allows DDS::DataReader entities to detect when DDS::DataWriter entities become disconnected or "dead.". More...
Enumerations
enum	DDS::LivelinessQosPolicyKind {   DDS::AUTOMATIC_LIVELINESS_QOS,   DDS::MANUAL_BY_PARTICIPANT_LIVELINESS_QOS,   DDS::MANUAL_BY_TOPIC_LIVELINESS_QOS }
	Kinds of liveliness. More...
Functions
static System::String^	DDS::LivelinessQosPolicy::get_livelines_qos_policy_name ()
	Stringified human-readable name for DDS::LivelinessQosPolicy.

---

Detailed Description

Specifies and configures the mechanism that allows DDS::DataReader entities to detect when DDS::DataWriter entities become disconnected or "dead.".

---

Enumeration Type Documentation

enum DDS::LivelinessQosPolicyKind

Kinds of liveliness.

QoS:

DDS::LivelinessQosPolicy

Enumerator:

AUTOMATIC_LIVELINESS_QOS	[default] The infrastructure will automatically signal liveliness for the DDS::DataWriter (s) at least as often as required by the lease_duration. A DDS::DataWriter with this setting does not need to take any specific action in order to be considered 'alive.' The DDS::DataWriter is only 'not alive' when the participant to which it belongs terminates (gracefully or not), or when there is a network problem that prevents the current participant from contacting that remote participant.
MANUAL_BY_PARTICIPANT_LIVELINESS_QOS	RTI Data Distribution Service will assume that as long as at least one DDS::DataWriter belonging to the DDS::DomainParticipant (or the DDS::DomainParticipant itself) has asserted its liveliness, then the other Entities belonging to that same DDS::DomainParticipant are also alive. The user application takes responsibility to signal liveliness to RTI Data Distribution Service either by calling DDS::DomainParticipant::assert_liveliness, or by calling DDS::DataWriter::assert_liveliness, or DDS::TypedDataWriter::write on any DDS::DataWriter belonging to the DDS::DomainParticipant.
MANUAL_BY_TOPIC_LIVELINESS_QOS	RTI Data Distribution Service will only assume liveliness of the DDS::DataWriter if the application has asserted liveliness of that DDS::DataWriter itself. The user application takes responsibility to signal liveliness to RTI Data Distribution Service using the DDS::DataWriter::assert_liveliness method, or by writing some data.

---

Function Documentation

static System::String ^ DDS::LivelinessQosPolicy::get_livelines_qos_policy_name

(

)

[inline, static, inherited]

Stringified human-readable name for DDS::LivelinessQosPolicy.