Struct heron::rapier_plugin::rapier2d::crossbeam::deque::Stealer [−]
pub struct Stealer<T> { /* fields omitted */ }
Expand description
A stealer handle of a worker queue.
Stealers can be shared among threads.
Task schedulers typically have a single worker queue per worker thread.
Examples
use crossbeam_deque::{Steal, Worker};
let w = Worker::new_lifo();
w.push(1);
w.push(2);
let s = w.stealer();
assert_eq!(s.steal(), Steal::Success(1));
assert_eq!(s.steal(), Steal::Success(2));
assert_eq!(s.steal(), Steal::Empty);
Implementations
impl<T> Stealer<T>
impl<T> Stealer<T>
Returns true
if the queue is empty.
use crossbeam_deque::Worker;
let w = Worker::new_lifo();
let s = w.stealer();
assert!(s.is_empty());
w.push(1);
assert!(!s.is_empty());
Returns the number of tasks in the deque.
use crossbeam_deque::Worker;
let w = Worker::new_lifo();
let s = w.stealer();
assert_eq!(s.len(), 0);
w.push(1);
assert_eq!(s.len(), 1);
w.push(2);
assert_eq!(s.len(), 2);
Steals a task from the queue.
Examples
use crossbeam_deque::{Steal, Worker};
let w = Worker::new_lifo();
w.push(1);
w.push(2);
let s = w.stealer();
assert_eq!(s.steal(), Steal::Success(1));
assert_eq!(s.steal(), Steal::Success(2));
pub fn steal_batch(&self, dest: &Worker<T>) -> Steal<()>
pub fn steal_batch(&self, dest: &Worker<T>) -> Steal<()>
Steals a batch of tasks and pushes them into another worker.
How many tasks exactly will be stolen is not specified. That said, this method will try to steal around half of the tasks in the queue, but also not more than some constant limit.
Examples
use crossbeam_deque::Worker;
let w1 = Worker::new_fifo();
w1.push(1);
w1.push(2);
w1.push(3);
w1.push(4);
let s = w1.stealer();
let w2 = Worker::new_fifo();
let _ = s.steal_batch(&w2);
assert_eq!(w2.pop(), Some(1));
assert_eq!(w2.pop(), Some(2));
pub fn steal_batch_and_pop(&self, dest: &Worker<T>) -> Steal<T>
pub fn steal_batch_and_pop(&self, dest: &Worker<T>) -> Steal<T>
Steals a batch of tasks, pushes them into another worker, and pops a task from that worker.
How many tasks exactly will be stolen is not specified. That said, this method will try to steal around half of the tasks in the queue, but also not more than some constant limit.
Examples
use crossbeam_deque::{Steal, Worker};
let w1 = Worker::new_fifo();
w1.push(1);
w1.push(2);
w1.push(3);
w1.push(4);
let s = w1.stealer();
let w2 = Worker::new_fifo();
assert_eq!(s.steal_batch_and_pop(&w2), Steal::Success(1));
assert_eq!(w2.pop(), Some(2));
Trait Implementations
Auto Trait Implementations
impl<T> RefUnwindSafe for Stealer<T> where
T: RefUnwindSafe,
impl<T> UnwindSafe for Stealer<T> where
T: RefUnwindSafe,
Blanket Implementations
Mutably borrows from an owned value. Read more
impl<T> Downcast for T where
T: Any,
impl<T> Downcast for T where
T: Any,
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 more
pub fn into_any_rc(self: Rc<T>) -> Rc<dyn Any + 'static>
pub 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
into Rc<ConcreteType>
where ConcreteType
implements Trait
. Read more
Convert &Trait
(where Trait: Downcast
) to &Any
. This is needed since Rust cannot
generate &Any
’s vtable from &Trait
’s. Read more
pub fn as_any_mut(&mut self) -> &mut (dyn Any + 'static)
pub 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 more
impl<T> Pointable for T
impl<T> Pointable for T
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
impl<SS, SP> SupersetOf<SS> for SP where
SS: SubsetOf<SP>,
The inverse inclusion map: attempts to construct self
from the equivalent element of its
superset. Read more
pub fn is_in_subset(&self) -> bool
pub fn is_in_subset(&self) -> bool
Checks if self
is actually part of its subset T
(and can be converted to it).
pub fn to_subset_unchecked(&self) -> SS
pub fn to_subset_unchecked(&self) -> SS
Use with care! Same as self.to_subset
but without any property checks. Always succeeds.
pub fn from_subset(element: &SS) -> SP
pub fn from_subset(element: &SS) -> SP
The inclusion map: converts self
to the equivalent element of its superset.
pub fn clone_type_data(&self) -> Box<dyn TypeData + 'static, Global>
pub fn vzip(self) -> V
Attaches the provided Subscriber
to this type, returning a
WithDispatch
wrapper. Read more
Attaches the current default Subscriber
to this type, returning a
WithDispatch
wrapper. Read more