Struct PollOpt

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

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 retty_io::PollOpt;

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

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

Implementations

impl PollOpt

pub fn empty() -> PollOpt

Return a PollOpt representing no set options.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::empty();

assert!(!opt.is_level());

pub fn edge() -> PollOpt

Return a PollOpt representing edge-triggered notifications.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::edge();

assert!(opt.is_edge());

pub fn level() -> PollOpt

Return a PollOpt representing level-triggered notifications.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::level();

assert!(opt.is_level());

pub fn oneshot() -> PollOpt

Return a PollOpt representing oneshot notifications.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::oneshot();

assert!(opt.is_oneshot());

pub fn is_edge(&self) -> bool

Returns true if the options include edge-triggered notifications.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::edge();

assert!(opt.is_edge());

pub fn is_level(&self) -> bool

Returns true if the options include level-triggered notifications.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::level();

assert!(opt.is_level());

pub fn is_oneshot(&self) -> bool

Returns true if the options includes oneshot.

See Poll for more documentation on polling.

Examples

use retty_io::PollOpt;

let opt = PollOpt::oneshot();

assert!(opt.is_oneshot());

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

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 retty_io::PollOpt;

let opt = PollOpt::oneshot();

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

use retty_io::PollOpt;

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

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

use retty_io::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)

Adds all options represented by other into self.

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

Examples

use retty_io::PollOpt;

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

assert!(opt.is_oneshot());

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

Removes all options represented by other from self.

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

Examples

use retty_io::PollOpt;

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

assert!(!opt.is_oneshot());

Trait Implementations

impl BitAnd for PollOpt

type Output = PollOpt

The resulting type after applying the & operator.

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

Performs the & operation.

impl BitOr for PollOpt

type Output = PollOpt

The resulting type after applying the | operator.

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

Performs the | operation.

impl BitXor for PollOpt

type Output = PollOpt

The resulting type after applying the ^ operator.

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

Performs the ^ operation.

impl Clone for PollOpt

fn clone(&self) -> PollOpt

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for PollOpt

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

Formats the value using the given formatter.

impl Ord for PollOpt

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

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

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

const 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 PollOpt

fn partial_cmp(&self, other: &PollOpt) -> 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 Sub for PollOpt

type Output = PollOpt

The resulting type after applying the - operator.

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

Performs the - operation.

impl Copy for PollOpt

impl Eq for PollOpt

impl StructuralPartialEq for PollOpt