Struct mio::Interest

pub struct Interest(/* private fields */);

Interest used in registering.

Interest are used in registering event::Sources with Poll, they indicate what readiness should be monitored for. For example if a socket is registered with readable interests and the socket becomes writable, no event will be returned from a call to poll.

Implementations

impl Interest

pub const READABLE: Interest = _

Returns a Interest set representing readable interests.

pub const WRITABLE: Interest = _

Returns a Interest set representing writable interests.

pub const PRIORITY: Interest = _

Returns a Interest set representing priority completion interests.

pub const fn add(self, other: Interest) -> Interest

Add together two Interest.

This does the same thing as the BitOr implementation, but is a constant function.

use mio::Interest;

const INTERESTS: Interest = Interest::READABLE.add(Interest::WRITABLE);

pub fn remove(self, other: Interest) -> Option<Interest>

Removes other Interest from self.

Returns None if the set would be empty after removing other.

use mio::Interest;

const RW_INTERESTS: Interest = Interest::READABLE.add(Interest::WRITABLE);

// As long a one interest remain this will return `Some`.
let w_interest = RW_INTERESTS.remove(Interest::READABLE).unwrap();
assert!(!w_interest.is_readable());
assert!(w_interest.is_writable());

// Removing all interests from the set will return `None`.
assert_eq!(w_interest.remove(Interest::WRITABLE), None);

// Its also possible to remove multiple interests at once.
assert_eq!(RW_INTERESTS.remove(RW_INTERESTS), None);

pub const fn is_readable(self) -> bool

Returns true if the value includes readable readiness.

pub const fn is_writable(self) -> bool

Returns true if the value includes writable readiness.

pub const fn is_aio(self) -> bool

Returns true if Interest contains AIO readiness.

pub const fn is_lio(self) -> bool

Returns true if Interest contains LIO readiness.

pub const fn is_priority(self) -> bool

Returns true if Interest contains priority readiness.

Trait Implementations

impl BitOr for Interest

type Output = Interest

The resulting type after applying the | operator.

fn bitor(self, other: Self) -> Self

Performs the | operation.

impl BitOrAssign for Interest

fn bitor_assign(&mut self, other: Self)

Performs the |= operation.

impl Clone for Interest

fn clone(&self) -> Interest

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Interest

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

Formats the value using the given formatter.

impl Ord for Interest

fn cmp(&self, other: &Interest) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for Interest

fn eq(&self, other: &Interest) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for Interest

fn partial_cmp(&self, other: &Interest) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Copy for Interest

impl Eq for Interest

impl StructuralPartialEq for Interest

Layout

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 1 byte