Struct RuntimeEventBatch 

pub struct RuntimeEventBatch<'a> { /* private fields */ }

Batch of runtime events borrowed from runtime-owned storage.

A batch borrows the RuntimeHandle it came from, so the next drain is a compile error while the batch lives, and an event read out of a batch borrows the batch. Take RuntimeEventRef::to_owned for a value that outlives either.

Implementations

impl<'a> RuntimeEventBatch<'a>

pub fn len(&self) -> usize

Returns how many events this batch reports.

pub fn is_empty(&self) -> bool

Reports whether this batch has no events.

pub fn remaining(&self) -> usize

Returns how many events stayed queued after this batch. A nonzero count means another drain reports more events.

pub fn iter(&self) -> impl Iterator<Item = RuntimeEventRef<'_>>

Walks this batch’s events in queue order.

Each event borrows this batch, so safe code cannot read one after the batch is gone:

let mut runtime = RuntimeHandle::with_options(&RuntimeOptions::default()).unwrap();
let batch = runtime.drain_events(0).unwrap();
let events = batch.iter().collect::<Vec<_>>();
drop(batch);
let _ = events.first().map(|event| event.message_bytes());

Trait Implementations

impl Debug for RuntimeEventBatch<'_>

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

Formats the value using the given formatter.