Struct RecentEvents 

pub struct RecentEvents { /* private fields */ }

Bounded ring buffer of recent lifecycle events.

The ring is held inside an Arc<Mutex<...>> so the gossip task and the dump endpoint can share it without contention on the steady-state path. New entries push to the back; once the length reaches MAX_RECENT_EVENTS the oldest entry is dropped.

Examples

use dynomite::admin::cluster_info::{RecentEvent, RecentEvents};
let log = RecentEvents::new();
log.push(RecentEvent::new(1, "restart", ""));
assert_eq!(log.snapshot().len(), 1);

Implementations

impl RecentEvents

pub fn new() -> Self

Construct a fresh, empty ring.

pub fn push(&self, event: RecentEvent)

Append event, dropping the oldest entry when the ring is full.

pub fn snapshot(&self) -> Vec<RecentEvent>

Cloned snapshot of the ring contents (oldest first).

pub fn len(&self) -> usize

Number of events currently buffered.

pub fn is_empty(&self) -> bool

True when the ring has no entries.

Trait Implementations

impl Clone for RecentEvents

fn clone(&self) -> RecentEvents

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RecentEvents

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

Formats the value using the given formatter.

impl Default for RecentEvents

fn default() -> RecentEvents

Returns the “default value” for a type.