Struct EventLog 

pub struct EventLog { /* private fields */ }

A bounded log that drops the oldest record when full.

use hardless_core::{EventKind, EventLog, EventRecord, Millis};
let mut log = EventLog::new(2);
for seq in 1..=3 {
    log.push(EventRecord { seq, at: Millis(0), device_id: "d".parse().unwrap(), kind: EventKind::Reset });
}
assert_eq!(log.iter().map(|r| r.seq).collect::<Vec<_>>(), [2, 3]);

Implementations

impl EventLog

pub fn new(capacity: usize) -> Self

An empty log holding at most capacity records (at least one).

pub fn push(&mut self, record: EventRecord)

Appends a record, dropping the oldest if the log is full.

pub fn iter( &self, ) -> impl DoubleEndedIterator<Item = &EventRecord> + ExactSizeIterator

Records oldest first.

pub fn since(&self, since: u64) -> impl Iterator<Item = &EventRecord>

Records with seq greater than since, oldest first.

pub fn len(&self) -> usize

Number of records.

pub fn is_empty(&self) -> bool

Whether the log is empty.

pub fn capacity(&self) -> usize

Maximum number of records.

pub fn clear(&mut self)

Removes every record.

Trait Implementations

impl Clone for EventLog

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for EventLog

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

Formats the value using the given formatter.