Enum EventKind 

#[non_exhaustive]
#[repr(u8)]
pub enum EventKind {
    LivelinessChanged = 0,
    RequestedDeadlineMissed = 1,
    MessageLost = 2,
    LivelinessLost = 3,
    OfferedDeadlineMissed = 4,
    PublicationMatched = 5,
    SubscriptionMatched = 6,
    PublisherIncompatibleType = 7,
    SubscriptionIncompatibleType = 8,
}

Status-event kinds. #[non_exhaustive] so adding a variant later is not a break for matchers. Discriminants equal the C rmw_event_type_t values, which only ever grow at the end.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

LivelinessChanged = 0

Subscription: a tracked publisher’s liveliness state changed (started / stopped asserting).

RequestedDeadlineMissed = 1

Subscription: an expected sample didn’t arrive within the configured deadline.

MessageLost = 2

Subscription: the backend dropped a sample (overflow / etc.).

LivelinessLost = 3

Publisher: this publisher missed its own liveliness assertion.

OfferedDeadlineMissed = 4

Publisher: this publisher promised X Hz, fell behind.

PublicationMatched = 5

Publisher: the set of subscriptions matched to it changed. Upstream RMW_EVENT_PUBLICATION_MATCHED (Iron+), issue 1972.

SubscriptionMatched = 6

Subscription: the set of publishers matched to it changed. Upstream RMW_EVENT_SUBSCRIPTION_MATCHED.

PublisherIncompatibleType = 7

Publisher: an endpoint on the same topic was seen with a different type. Upstream RMW_EVENT_PUBLISHER_INCOMPATIBLE_TYPE.

SubscriptionIncompatibleType = 8

Subscription: an endpoint on the same topic was seen with a different type. Upstream RMW_EVENT_SUBSCRIPTION_INCOMPATIBLE_TYPE.

Implementations

impl EventKind

pub const fn is_publisher_side(self) -> bool

true for a kind a PUBLISHER carries, false for a subscription’s.

Trait Implementations

impl Clone for EventKind

fn clone(&self) -> EventKind

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for EventKind

impl Debug for EventKind

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

Formats the value using the given formatter.

impl Eq for EventKind

impl Hash for EventKind

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for EventKind

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for EventKind