Struct AtomicArc

#[repr(C)]
pub struct AtomicArc<T, Alloc: IAlloc> { /* private fields */ }

An owner of an Arc<T, Alloc> whose pointee can be atomically changed.

Implementations

impl<T, Alloc: IAlloc> AtomicArc<T, Alloc>

where Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>>: IStable, PhantomData<*const Alloc>: IStable, AtomicPtr<T>: IStable,

pub const fn has_optimal_layout() -> bool

Returns true if the layout for AtomicArc is smaller or equal to that Rust would have generated for it.

impl<T, Alloc: IAlloc> AtomicArc<T, Alloc>

pub const fn new(value: Option<Arc<T, Alloc>>) -> Self

Constructs a new AtomicArc set to the provided value.

pub fn load(&self, order: Ordering) -> Option<Arc<T, Alloc>>

Atomically load the current value.

pub fn store(&self, value: Option<Arc<T, Alloc>>, order: Ordering)

Atomically store a new value.

pub fn is( &self, current: Option<&Arc<T, Alloc>>, order: Ordering, ) -> Result<(), Option<Arc<T, Alloc>>>

Compares self with current by pointer.

Errors

Returns the new value of self if it differs from current.

pub fn compare_exchange( &self, current: Option<&Arc<T, Alloc>>, new: Option<Arc<T, Alloc>>, success: Ordering, failure: Ordering, ) -> Result<Option<Arc<T, Alloc>>, Option<Arc<T, Alloc>>>

Replace the current value with the new value.

Errors

If current no longer points to the same value as self, it

Trait Implementations

impl<T, Alloc: IAlloc> Drop for AtomicArc<T, Alloc>

fn drop(&mut self)

Executes the destructor for this type.

impl<T, Alloc: IAlloc> IStable for AtomicArc<T, Alloc>

where Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>>: IStable, PhantomData<*const Alloc>: IStable, AtomicPtr<T>: IStable,

const REPORT: &'static TypeReport

A compile-time generated report of the fields of the type, allowing for compatibility inspection.

const ID: u64

A stable (and ideally unique) identifier for the type. Often generated using crate::report::gen_id, but can be manually set.

type ForbiddenValues = <Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>> as IStable>::ForbiddenValues

The values that the annotated type cannot occupy.

type UnusedBits = <Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>> as IStable>::UnusedBits

The padding bits in the annotated types

type Size = <Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>> as IStable>::Size

The size of the annotated type in bytes.

type Align = <Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>> as IStable>::Align

The alignment of the annotated type in bytes.

type HasExactlyOneNiche = <Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>> as IStable>::HasExactlyOneNiche

Allows the detection of whether or not core::option::Options are stable:

type ContainsIndirections = <Struct<FieldPair<AtomicPtr<T>, PhantomData<*const Alloc>>> as IStable>::ContainsIndirections

Whether or not the type contains indirections (pointers, indices in independent data-structures…)

fn size() -> usize

Returns the size of the type.

fn align() -> usize

Returns the alignment of the type.

unsafe fn is_invalid(ptr: *const u8) -> bool

Returns true if ptr points to memory that cannot be a valid value of Self.

impl<T: Send + Sync, Alloc: IAlloc + Send + Sync> Send for AtomicArc<T, Alloc>

impl<T: Send + Sync, Alloc: IAlloc + Send + Sync> Sync for AtomicArc<T, Alloc>