Enum QoSLivelinessPolicy 

#[repr(u8)]
pub enum QoSLivelinessPolicy {
    None = 0,
    Automatic = 1,
    ManualByNode = 2,
    ManualByTopic = 3,
}

QoS liveliness policy. Matches DDS LIVELINESS semantics.

Variants

None = 0

No liveliness assertion or tracking. Default for entities that don’t care about liveliness.

Automatic = 1

Backend’s keepalive task asserts liveliness automatically.

ManualByNode = 2

Application calls assert_liveliness() at the node level.

Phase 376 W5/B2 — this was 3 and ManualByTopic was 2, the opposite of upstream. The discriminant IS the C ABI value (liveliness_kind is written with as u8), and the cyclonedds backend turns it into a real DDS liveliness kind that a ROS peer matches on, so the swap was visible on the wire and nowhere else.

ManualByTopic = 3

Application calls assert_liveliness() per topic explicitly.

Trait Implementations

impl Clone for QoSLivelinessPolicy

fn clone(&self) -> QoSLivelinessPolicy

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for QoSLivelinessPolicy

impl Debug for QoSLivelinessPolicy

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for QoSLivelinessPolicy

fn default() -> QoSLivelinessPolicy

Returns the “default value” for a type.

impl Eq for QoSLivelinessPolicy

impl PartialEq for QoSLivelinessPolicy

fn eq(&self, other: &QoSLivelinessPolicy) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for QoSLivelinessPolicy