Struct mio::PollOpt

[+] Show declaration

pub struct PollOpt(_);

[−] Expand description

Options supplied when registering an Evented handle with Poll

PollOpt values can be combined together using the various bitwise operators.

For high level documentation on polling and poll options, see Poll.

Examples

use mio::PollOpt;

let opts = PollOpt::edge() | PollOpt::oneshot();

assert!(opts.is_edge());
assert!(opts.is_oneshot());
assert!(!opts.is_level());

Methods

impl PollOpt

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pub fn empty() -> PollOpt

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Return a PollOpt representing no set options.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::empty();

assert!(!opt.is_level());

pub fn edge() -> PollOpt

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Return a PollOpt representing edge-triggered notifications.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::edge();

assert!(opt.is_edge());

pub fn level() -> PollOpt

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Return a PollOpt representing level-triggered notifications.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::level();

assert!(opt.is_level());

pub fn oneshot() -> PollOpt

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Return a PollOpt representing oneshot notifications.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::oneshot();

assert!(opt.is_oneshot());

pub fn is_edge(&self) -> bool

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Returns true if the options include edge-triggered notifications.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::edge();

assert!(opt.is_edge());

pub fn is_level(&self) -> bool

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Returns true if the options include level-triggered notifications.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::level();

assert!(opt.is_level());

pub fn is_oneshot(&self) -> bool

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Returns true if the options includes oneshot.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::oneshot();

assert!(opt.is_oneshot());

pub fn contains(&self, other: PollOpt) -> bool

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Returns true if self is a superset of other.

other may represent more than one option, in which case the function only returns true if self contains all of the options specified in other.

See Poll for more documentation on polling.

Examples

use mio::PollOpt;

let opt = PollOpt::oneshot();

assert!(opt.contains(PollOpt::oneshot()));
assert!(!opt.contains(PollOpt::edge()));

use mio::PollOpt;

let opt = PollOpt::oneshot() | PollOpt::edge();

assert!(opt.contains(PollOpt::oneshot()));
assert!(opt.contains(PollOpt::edge()));

use mio::PollOpt;

let opt = PollOpt::oneshot() | PollOpt::edge();

assert!(!PollOpt::oneshot().contains(opt));
assert!(opt.contains(opt));
assert!((opt | PollOpt::level()).contains(opt));

pub fn insert(&mut self, other: PollOpt)

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Adds all options represented by other into self.

This is equivalent to *self = *self | other.

Examples

use mio::PollOpt;

let mut opt = PollOpt::empty();
opt.insert(PollOpt::oneshot());

assert!(opt.is_oneshot());

pub fn remove(&mut self, other: PollOpt)

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Removes all options represented by other from self.

This is equivalent to *self = *self & !other.

Examples

use mio::PollOpt;

let mut opt = PollOpt::oneshot();
opt.remove(PollOpt::oneshot());

assert!(!opt.is_oneshot());

Trait Implementations

impl PartialOrd<PollOpt> for PollOpt

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

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

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

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This method tests less than (for self and other) and is used by the < operator.

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

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

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

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This method tests greater than (for self and other) and is used by the > operator.

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

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

impl Ord for PollOpt

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

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This method returns an Ordering between self and other.

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

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Compares and returns the maximum of two values.

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

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Compares and returns the minimum of two values.

impl PartialEq<PollOpt> for PollOpt

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

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This method tests for self and other values to be equal, and is used by ==.

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

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This method tests for !=.

impl Clone for PollOpt

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fn clone(&self) -> PollOpt

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Copy for PollOpt

impl Eq for PollOpt

impl Sub<PollOpt> for PollOpt

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type Output = PollOpt

The resulting type after applying the - operator.

fn sub(self, other: PollOpt) -> PollOpt

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Performs the - operation.

impl BitAnd<PollOpt> for PollOpt

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type Output = PollOpt

The resulting type after applying the & operator.

fn bitand(self, other: PollOpt) -> PollOpt

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Performs the & operation.

impl BitOr<PollOpt> for PollOpt

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type Output = PollOpt

The resulting type after applying the | operator.

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

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Performs the | operation.

impl BitXor<PollOpt> for PollOpt

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type Output = PollOpt

The resulting type after applying the ^ operator.

fn bitxor(self, other: PollOpt) -> PollOpt

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Performs the ^ operation.

impl Debug for PollOpt

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

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Formats the value using the given formatter.