Struct mio::Events

pub struct Events { /* fields omitted */ }

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 poll = Poll::new()?;

assert_eq!(0, events.len());

// Register `Evented` handles with `poll`

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

for event in &events {
    println!("event={:?}", event);
}

Methods

impl Events

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());

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());

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());

Important traits for Iter<'a>

impl<'a> Iterator for Iter<'a> type Item = Event;

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 poll = Poll::new()?;

// Register handles with `poll`

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

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

pub fn clear(&mut self)

Clearing all Event values from container explicitly.

Examples

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

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

// Register handles with `poll`
for _ in 0..2 {
    events.clear();
    poll.poll(&mut events, Some(Duration::from_millis(100)))?;

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

Trait Implementations

impl<'a> IntoIterator for &'a Events

type Item = Event

The type of the elements being iterated over.

type IntoIter = Iter<'a>

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl IntoIterator for Events

type Item = Event

The type of the elements being iterated over.

type IntoIter = IntoIter

Which kind of iterator are we turning this into?

fn into_iter(self) -> Self::IntoIter

Creates an iterator from a value.

impl Debug for Events

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

Formats the value using the given formatter.