[][src]Struct mio::Ready

pub struct Ready(_);

A set of readiness event kinds

Ready is a set of operation descriptors indicating which kind of an operation is ready to be performed. For example, Ready::readable() indicates that the associated Evented handle is ready to perform a read operation.

This struct only represents portable event kinds. Since only readable and writable events are guaranteed to be raised on all systems, those are the only ones available via the Ready struct. There are also platform specific extensions to Ready, i.e. UnixReady, which provide additional readiness event kinds only available on unix platforms.

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

For high level documentation on polling and readiness, see Poll.

Examples

use mio::Ready;

let ready = Ready::readable() | Ready::writable();

assert!(ready.is_readable());
assert!(ready.is_writable());

Methods

impl Ready[src]

pub fn empty() -> Ready[src]

Returns the empty Ready set.

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::empty();

assert!(!ready.is_readable());

pub fn readable() -> Ready[src]

Returns a Ready representing readable readiness.

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::readable();

assert!(ready.is_readable());

pub fn writable() -> Ready[src]

Returns a Ready representing writable readiness.

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::writable();

assert!(ready.is_writable());

pub fn all() -> Ready[src]

Returns a Ready representing readiness for all operations.

This includes platform specific operations as well (hup, aio, error, lio, pri).

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::all();

assert!(ready.is_readable());
assert!(ready.is_writable());

pub fn is_empty(&self) -> bool[src]

Returns true if Ready is the empty set

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::empty();
assert!(ready.is_empty());

pub fn is_readable(&self) -> bool[src]

Returns true if the value includes readable readiness

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::readable();

assert!(ready.is_readable());

pub fn is_writable(&self) -> bool[src]

Returns true if the value includes writable readiness

See Poll for more documentation on polling.

Examples

use mio::Ready;

let ready = Ready::writable();

assert!(ready.is_writable());

pub fn insert<T: Into<Self>>(&mut self, other: T)[src]

Adds all readiness represented by other into self.

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

Examples

use mio::Ready;

let mut readiness = Ready::empty();
readiness.insert(Ready::readable());

assert!(readiness.is_readable());

pub fn remove<T: Into<Self>>(&mut self, other: T)[src]

Removes all options represented by other from self.

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

Examples

use mio::Ready;

let mut readiness = Ready::readable();
readiness.remove(Ready::readable());

assert!(!readiness.is_readable());

pub fn contains<T: Into<Self>>(&self, other: T) -> bool[src]

Returns true if self is a superset of other.

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

See Poll for more documentation on polling.

Examples

use mio::Ready;

let readiness = Ready::readable();

assert!(readiness.contains(Ready::readable()));
assert!(!readiness.contains(Ready::writable()));
use mio::Ready;

let readiness = Ready::readable() | Ready::writable();

assert!(readiness.contains(Ready::readable()));
assert!(readiness.contains(Ready::writable()));
use mio::Ready;

let readiness = Ready::readable() | Ready::writable();

assert!(!Ready::readable().contains(readiness));
assert!(readiness.contains(readiness));

pub fn from_usize(val: usize) -> Ready[src]

Create a Ready instance using the given usize representation.

The usize representation must have been obtained from a call to Ready::as_usize.

The usize representation must be treated as opaque. There is no guaranteed correlation between the returned value and platform defined constants. Also, there is no guarantee that the usize representation will remain constant across patch releases of Mio.

This function is mainly provided to allow the caller to loa a readiness value from an AtomicUsize.

Examples

use mio::Ready;

let ready = Ready::readable();
let ready_usize = ready.as_usize();
let ready2 = Ready::from_usize(ready_usize);

assert_eq!(ready, ready2);

pub fn as_usize(&self) -> usize[src]

Returns a usize representation of the Ready value.

This usize representation must be treated as opaque. There is no guaranteed correlation between the returned value and platform defined constants. Also, there is no guarantee that the usize representation will remain constant across patch releases of Mio.

This function is mainly provided to allow the caller to store a readiness value in an AtomicUsize.

Examples

use mio::Ready;

let ready = Ready::readable();
let ready_usize = ready.as_usize();
let ready2 = Ready::from_usize(ready_usize);

assert_eq!(ready, ready2);

Trait Implementations

impl Clone for Ready[src]

fn clone_from(&mut self, source: &Self)1.0.0[src]

Performs copy-assignment from source. Read more

impl Ord for Ready[src]

fn max(self, other: Self) -> Self1.21.0[src]

Compares and returns the maximum of two values. Read more

fn min(self, other: Self) -> Self1.21.0[src]

Compares and returns the minimum of two values. Read more

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval. Read more

impl From<Ready> for UnixReady[src]

impl From<UnixReady> for Ready[src]

impl Copy for Ready[src]

impl Eq for Ready[src]

impl PartialOrd<Ready> for Ready[src]

impl PartialEq<Ready> for Ready[src]

impl Debug for Ready[src]

impl<T: Into<Ready>> Sub<T> for Ready[src]

type Output = Ready

The resulting type after applying the - operator.

impl<T: Into<Ready>> SubAssign<T> for Ready[src]

impl<T: Into<Ready>> BitAnd<T> for Ready[src]

type Output = Ready

The resulting type after applying the & operator.

impl<T: Into<Ready>> BitOr<T> for Ready[src]

type Output = Ready

The resulting type after applying the | operator.

impl<T: Into<Ready>> BitXor<T> for Ready[src]

type Output = Ready

The resulting type after applying the ^ operator.

impl<T: Into<Ready>> BitAndAssign<T> for Ready[src]

impl<T: Into<Ready>> BitOrAssign<T> for Ready[src]

impl<T: Into<Ready>> BitXorAssign<T> for Ready[src]

Auto Trait Implementations

impl Send for Ready

impl Sync for Ready

Blanket Implementations

impl<T> From<T> for T[src]

impl<T, U> Into<U> for T where
    U: From<T>, 
[src]

impl<T> ToOwned for T where
    T: Clone
[src]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, 
[src]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, 
[src]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

impl<T> BorrowMut<T> for T where
    T: ?Sized
[src]

impl<T> Borrow<T> for T where
    T: ?Sized
[src]

impl<T> Any for T where
    T: 'static + ?Sized
[src]