Struct WatchJournal 

pub struct WatchJournal { /* private fields */ }

Bounded, append-only record of a worker’s presentation events.

Implementations

impl WatchJournal

pub fn record(&mut self, event: &StreamEvent)

Record a worker stream event (no-op for events the view ignores).

pub fn push(&mut self, ev: WatchEvent)

pub fn read(&mut self, since: u64) -> WatchPage

Events from since on (at most PAGE_MAX_BYTES, always at least one). Seals everything returned so later appends start new entries. Fills the journal fields of a WatchPage; the caller adds identity.

pub fn len(&self) -> usize

pub fn bytes(&self) -> usize

Retained payload bytes (the JOURNAL_MAX_BYTES measure).

pub fn is_empty(&self) -> bool

Trait Implementations

impl Debug for WatchJournal

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

Formats the value using the given formatter.

impl Default for WatchJournal

fn default() -> Self

Returns the “default value” for a type.