Struct heron::rapier_plugin::rapier2d::crossbeam::queue::ArrayQueue [−]
pub struct ArrayQueue<T> { /* fields omitted */ }
Expand description
A bounded multi-producer multi-consumer queue.
This queue allocates a fixed-capacity buffer on construction, which is used to store pushed
elements. The queue cannot hold more elements than the buffer allows. Attempting to push an
element into a full queue will fail. Having a buffer allocated upfront makes this queue a bit
faster than SegQueue
.
Examples
use crossbeam_queue::ArrayQueue;
let q = ArrayQueue::new(2);
assert_eq!(q.push('a'), Ok(()));
assert_eq!(q.push('b'), Ok(()));
assert_eq!(q.push('c'), Err('c'));
assert_eq!(q.pop(), Some('a'));
Implementations
impl<T> ArrayQueue<T>
impl<T> ArrayQueue<T>
pub fn new(cap: usize) -> ArrayQueue<T>
pub fn new(cap: usize) -> ArrayQueue<T>
Attempts to push an element into the queue.
If the queue is full, the element is returned back as an error.
Examples
use crossbeam_queue::ArrayQueue;
let q = ArrayQueue::new(1);
assert_eq!(q.push(10), Ok(()));
assert_eq!(q.push(20), Err(20));
Attempts to pop an element from the queue.
If the queue is empty, None
is returned.
Examples
use crossbeam_queue::ArrayQueue;
let q = ArrayQueue::new(1);
assert_eq!(q.push(10), Ok(()));
assert_eq!(q.pop(), Some(10));
assert!(q.pop().is_none());
Returns the capacity of the queue.
Examples
use crossbeam_queue::ArrayQueue;
let q = ArrayQueue::<i32>::new(100);
assert_eq!(q.capacity(), 100);
Returns true
if the queue is empty.
Examples
use crossbeam_queue::ArrayQueue;
let q = ArrayQueue::new(100);
assert!(q.is_empty());
q.push(1).unwrap();
assert!(!q.is_empty());
Returns true
if the queue is full.
Examples
use crossbeam_queue::ArrayQueue;
let q = ArrayQueue::new(1);
assert!(!q.is_full());
q.push(1).unwrap();
assert!(q.is_full());
Trait Implementations
impl<T> Debug for ArrayQueue<T>
impl<T> Debug for ArrayQueue<T>
impl<T> Drop for ArrayQueue<T>
impl<T> Drop for ArrayQueue<T>
impl<T> Send for ArrayQueue<T> where
T: Send,
impl<T> Sync for ArrayQueue<T> where
T: Send,
Auto Trait Implementations
impl<T> !RefUnwindSafe for ArrayQueue<T>
impl<T> Unpin for ArrayQueue<T> where
T: Unpin,
impl<T> !UnwindSafe for ArrayQueue<T>
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 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