Struct parking::Unparker

source ·
pub struct Unparker { /* private fields */ }
Expand description

Notifies a parker.

Implementations§

source§

impl Unparker

source

pub fn unpark(&self) -> bool

Notifies the associated parker.

Returns true if this call is the first to notify the parker, or false if the parker was already notified.

§Examples
use std::thread;
use std::time::Duration;
use parking::Parker;

let p = Parker::new();
let u = p.unparker();

thread::spawn(move || {
    thread::sleep(Duration::from_millis(500));
    u.unpark();
});

// Wakes up when `u.unpark()` notifies and then goes back into unnotified state.
p.park();
source

pub fn will_unpark(&self, parker: &Parker) -> bool

Indicates whether this unparker will unpark the associated parker.

This can be used to avoid unnecessary work before calling unpark().

§Examples
use parking::Parker;

let p = Parker::new();
let u = p.unparker();

assert!(u.will_unpark(&p));
source

pub fn same_parker(&self, other: &Unparker) -> bool

Indicates whether two unparkers will unpark the same parker.

§Examples
use parking::Parker;

let p = Parker::new();
let u1 = p.unparker();
let u2 = p.unparker();

assert!(u1.same_parker(&u2));

Trait Implementations§

source§

impl Clone for Unparker

source§

fn clone(&self) -> Unparker

Returns a copy of the value. Read more
1.0.0 · source§

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

Performs copy-assignment from source. Read more
source§

impl Debug for Unparker

source§

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

Formats the value using the given formatter. Read more
source§

impl From<Unparker> for Waker

source§

fn from(up: Unparker) -> Self

Converts to this type from the input type.

Auto Trait Implementations§

Blanket Implementations§

source§

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

source§

fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
source§

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

source§

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
source§

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

source§

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

Mutably borrows from an owned value. Read more
source§

impl<T> From<T> for T

source§

fn from(t: T) -> T

Returns the argument unchanged.

source§

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

source§

fn into(self) -> U

Calls U::from(self).

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

source§

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

§

type Owned = T

The resulting type after obtaining ownership.
source§

fn to_owned(&self) -> T

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

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

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

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

§

type Error = Infallible

The type returned in the event of a conversion error.
source§

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

Performs the conversion.
source§

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.
source§

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

Performs the conversion.