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Struct Ready 

pub struct Ready(/* private fields */);
Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt only.

Describes the readiness state of an I/O resources.

Ready tracks which operation an I/O resource is ready to perform.

Implementations

impl Ready

pub const EMPTY: Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns the empty Ready set.

pub const READABLE: Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns a Ready representing readable readiness.

pub const WRITABLE: Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns a Ready representing writable readiness.

pub const READ_CLOSED: Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns a Ready representing read closed readiness.

pub const WRITE_CLOSED: Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns a Ready representing write closed readiness.

pub const PRIORITY: Ready

Available on Android or Linux only.

Returns a Ready representing priority readiness.

pub const ERROR: Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns a Ready representing error readiness.

pub const ALL: Ready

Available on (Android or Linux) and (crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal) only.

Returns a Ready representing readiness for all operations.

pub fn is_empty(self) -> bool

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns true if Ready is the empty set.

Examples
use tokio::io::Ready;

assert!(Ready::EMPTY.is_empty());
assert!(!Ready::READABLE.is_empty());

pub fn is_readable(self) -> bool

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns true if the value includes readable.

Examples
use tokio::io::Ready;

assert!(!Ready::EMPTY.is_readable());
assert!(Ready::READABLE.is_readable());
assert!(Ready::READ_CLOSED.is_readable());
assert!(!Ready::WRITABLE.is_readable());

pub fn is_writable(self) -> bool

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns true if the value includes writable readiness.

Examples
use tokio::io::Ready;

assert!(!Ready::EMPTY.is_writable());
assert!(!Ready::READABLE.is_writable());
assert!(Ready::WRITABLE.is_writable());
assert!(Ready::WRITE_CLOSED.is_writable());

pub fn is_read_closed(self) -> bool

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns true if the value includes read-closed readiness.

Examples
use tokio::io::Ready;

assert!(!Ready::EMPTY.is_read_closed());
assert!(!Ready::READABLE.is_read_closed());
assert!(Ready::READ_CLOSED.is_read_closed());

pub fn is_write_closed(self) -> bool

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns true if the value includes write-closed readiness.

Examples
use tokio::io::Ready;

assert!(!Ready::EMPTY.is_write_closed());
assert!(!Ready::WRITABLE.is_write_closed());
assert!(Ready::WRITE_CLOSED.is_write_closed());

pub fn is_priority(self) -> bool

Available on Android or Linux only.

Returns true if the value includes priority readiness.

Examples
use tokio::io::Ready;

assert!(!Ready::EMPTY.is_priority());
assert!(!Ready::WRITABLE.is_priority());
assert!(Ready::PRIORITY.is_priority());

pub fn is_error(self) -> bool

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

Returns true if the value includes error readiness.

Examples
use tokio::io::Ready;

assert!(!Ready::EMPTY.is_error());
assert!(!Ready::WRITABLE.is_error());
assert!(Ready::ERROR.is_error());

Trait Implementations

impl BitAnd for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

type Output = Ready

The resulting type after applying the & operator.

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

Performs the & operation. Read more

impl BitOr for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

type Output = Ready

The resulting type after applying the | operator.

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

Performs the | operation. Read more

impl BitOrAssign for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

fn bitor_assign(&mut self, other: Ready)

Performs the |= operation. Read more

impl Clone for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

fn clone(&self) -> Ready

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) ·

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

Performs copy-assignment from source. Read more

impl Copy for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

impl Debug for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

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

Formats the value using the given formatter. Read more

impl Eq for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

impl Ord for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

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

This method returns an Ordering between self and other. Read more
1.21.0 (const: unstable) ·

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

Compares and returns the maximum of two values. Read more
1.21.0 (const: unstable) ·

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

Compares and returns the minimum of two values. Read more
1.50.0 (const: unstable) ·

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

Restrict a value to a certain interval. Read more

impl PartialEq for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

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

Equality operator ==. Read more
1.0.0 (const: unstable) ·

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

Inequality operator !=. Read more

impl PartialOrd for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

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

This method returns an ordering between self and other values if one exists. Read more
1.0.0 (const: unstable) ·

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

Tests less than (for self and other) and is used by the < operator. Read more
1.0.0 (const: unstable) ·

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

Tests less than or equal to (for self and other) and is used by the <= operator. Read more
1.0.0 (const: unstable) ·

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

Tests greater than (for self and other) and is used by the > operator. Read more
1.0.0 (const: unstable) ·

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

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

impl StructuralPartialEq for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

impl Sub for Ready

Available on crate feature net, or tokio_unstable and Linux and crate feature fs and crate feature io-uring and crate feature rt, or Unix and crate feature process, or Unix and crate feature signal only.

type Output = Ready

The resulting type after applying the - operator.

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

Performs the - operation. Read more

Auto Trait Implementations

impl Freeze for Ready

impl RefUnwindSafe for Ready

impl Send for Ready

impl Sync for Ready

impl Unpin for Ready

impl UnsafeUnpin for Ready

impl UnwindSafe for Ready

Blanket Implementations

impl<T> Any for T
where T: 'static + ?Sized,

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

impl<T> Borrow<T> for T
where T: ?Sized,

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

impl<T> BorrowMut<T> for T
where T: ?Sized,

fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

impl<T> CloneToUninit for T
where T: Clone,

unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more

impl<T> From<T> for T

fn from(t: T) -> T

Returns the argument unchanged.

impl<T> Instrument for T

fn instrument(self, span: Span) -> Instrumented<Self> ⓘ

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more

fn in_current_span(self) -> Instrumented<Self> ⓘ

Instruments this type with the current Span, returning an Instrumented wrapper. Read more

impl<T, U> Into<U> for T
where U: From<T>,

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

impl<T> ToOwned for T
where T: Clone,

type Owned = T

The resulting type after obtaining ownership.

fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more

impl<T, U> TryFrom<U> for T
where U: Into<T>,

type Error = Infallible

The type returned in the event of a conversion error.

fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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

The type returned in the event of a conversion error.

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.

impl<T> WithSubscriber for T

fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self> ⓘ
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more

fn with_current_subscriber(self) -> WithDispatch<Self> ⓘ

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more

MIT License
Copyright © Tokio Contributors
https://docs.rs/tokio/1.53.1/tokio/io/struct.Ready.html

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