pub struct Unparker { /* private fields */ }
Expand description
Unparks a thread parked by the associated Parker
.
Implementations
impl Unparker
impl Unparker
pub fn unpark(&self)
pub fn unpark(&self)
Atomically makes the token available if it is not already.
This method will wake up the thread blocked on park
or park_timeout
, if there is
any.
Examples
use std::thread;
use std::time::Duration;
use crossbeam_utils::sync::Parker;
let p = Parker::new();
let u = p.unparker().clone();
thread::spawn(move || {
thread::sleep(Duration::from_millis(500));
u.unpark();
});
// Wakes up when `u.unpark()` provides the token.
p.park();
pub fn into_raw(this: Unparker) -> *const ()
pub fn into_raw(this: Unparker) -> *const ()
Converts an Unparker
into a raw pointer.
Examples
use crossbeam_utils::sync::{Parker, Unparker};
let p = Parker::new();
let u = p.unparker().clone();
let raw = Unparker::into_raw(u);
pub unsafe fn from_raw(ptr: *const ()) -> Unparker
pub unsafe fn from_raw(ptr: *const ()) -> Unparker
Converts a raw pointer into an Unparker
.
Safety
This method is safe to use only with pointers returned by Unparker::into_raw
.
Examples
use crossbeam_utils::sync::{Parker, Unparker};
let p = Parker::new();
let u = p.unparker().clone();
let raw = Unparker::into_raw(u);
let u = unsafe { Unparker::from_raw(raw) };
Trait Implementations
Auto Trait Implementations
Blanket Implementations
impl<T, U> AsBindGroupShaderType<U> for Twhere
U: ShaderType,
&'a T: for<'a> Into<U>,
impl<T, U> AsBindGroupShaderType<U> for Twhere
U: ShaderType,
&'a T: for<'a> Into<U>,
fn as_bind_group_shader_type(
&self,
_images: &HashMap<Handle<Image>, <Image as RenderAsset>::PreparedAsset, RandomState, Global>
) -> U
fn as_bind_group_shader_type(
&self,
_images: &HashMap<Handle<Image>, <Image as RenderAsset>::PreparedAsset, RandomState, Global>
) -> U
Return the
T
[ShaderType
] for self
. When used in [AsBindGroup
]
derives, it is safe to assume that all images in self
exist. Read moresourceimpl<T> BorrowMut<T> for Twhere
T: ?Sized,
impl<T> BorrowMut<T> for Twhere
T: ?Sized,
const: unstable · sourcefn borrow_mut(&mut self) -> &mut T
fn borrow_mut(&mut self) -> &mut T
Mutably borrows from an owned value. Read more
impl<T> Downcast for Twhere
T: Any,
impl<T> Downcast for Twhere
T: Any,
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Convert
Box<dyn Trait>
(where Trait: Downcast
) to Box<dyn Any>
. Box<dyn Any>
can
then be further downcast
into Box<ConcreteType>
where ConcreteType
implements Trait
. Read morefn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
Convert
Rc<Trait>
(where Trait: Downcast
) to Rc<Any>
. Rc<Any>
can then be
further downcast
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. Read morefn as_any(&self) -> &(dyn Any + 'static)
fn as_any(&self) -> &(dyn Any + 'static)
Convert
&Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
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’s vtable from &Trait
’s. Read morefn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
Convert
&mut Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &mut Any
’s vtable from &mut Trait
’s. Read moresourceimpl<T> Instrument for T
impl<T> Instrument for T
sourcefn instrument(self, span: Span) -> Instrumented<Self>
fn instrument(self, span: Span) -> Instrumented<Self>
sourcefn in_current_span(self) -> Instrumented<Self>
fn in_current_span(self) -> Instrumented<Self>
impl<T> Pointable for T
impl<T> Pointable for T
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SPwhere
SS: SubsetOf<SP>,
fn to_subset(&self) -> Option<SS>
fn to_subset(&self) -> Option<SS>
The inverse inclusion map: attempts to construct
self
from the equivalent element of its
superset. Read morefn is_in_subset(&self) -> bool
fn is_in_subset(&self) -> bool
Checks if
self
is actually part of its subset T
(and can be converted to it).fn to_subset_unchecked(&self) -> SS
fn to_subset_unchecked(&self) -> SS
Use with care! Same as
self.to_subset
but without any property checks. Always succeeds.fn from_subset(element: &SS) -> SP
fn from_subset(element: &SS) -> SP
The inclusion map: converts
self
to the equivalent element of its superset.