Struct Events

Source

pub struct Events { /* private fields */ }

Expand description

A collection of readiness events.

Events is passed as an argument to Poll::poll and will be used to receive any new readiness events received since the last poll. Usually, a single Events instance is created at the same time as a Poll and reused on each call to Poll::poll.

See Poll for more documentation on polling.

§Examples

use mio::{Events, Poll};
use std::time::Duration;

let mut events = Events::with_capacity(1024);
let mut poll = Poll::new()?;

// Register `event::Source`s with `poll`.

poll.poll(&mut events, Some(Duration::from_millis(100)))?;

for event in events.iter() {
    println!("Got an event for {:?}", event.token());
}

Implementations§

Source §

impl Events

Source

pub fn with_capacity(capacity: usize) -> Events

Return a new Events capable of holding up to capacity events.

§Examples

use mio::Events;

let events = Events::with_capacity(1024);
assert_eq!(1024, events.capacity());

Source

pub fn capacity(&self) -> usize

Returns the number of Event values that self can hold.

use mio::Events;

let events = Events::with_capacity(1024);
assert_eq!(1024, events.capacity());

Source

pub fn is_empty(&self) -> bool

Returns true if self contains no Event values.

§Examples

use mio::Events;

let events = Events::with_capacity(1024);
assert!(events.is_empty());

Source

pub fn iter(&self) -> Iter<'_> ⓘ

Returns an iterator over the Event values.

§Examples

use mio::{Events, Poll};
use std::time::Duration;

let mut events = Events::with_capacity(1024);
let mut poll = Poll::new()?;

// Register handles with `poll`.

poll.poll(&mut events, Some(Duration::from_millis(100)))?;

for event in events.iter() {
    println!("Got an event for {:?}", event.token());
}

Source

pub fn clear(&mut self)

Clearing all Event values from container explicitly.

§Notes

Events are cleared before every poll, so it is not required to call this manually.

§Examples

use mio::{Events, Poll};
use std::time::Duration;

let mut events = Events::with_capacity(1024);
let mut poll = Poll::new()?;

// Register handles with `poll`.

poll.poll(&mut events, Some(Duration::from_millis(100)))?;

// Clear all events.
events.clear();
assert!(events.is_empty());