Module `sync`

Thread-safe reference-counting pointers.

See the [Arc<T>][Arc] documentation for more details.

Note: This module is only available on platforms that support atomic loads and stores of pointers. This may be detected at compile time using #[cfg(target_has_atomic = "ptr")].

Structs

Arc A thread-safe reference-counting pointer. 'Arc' stands for 'Atomically Reference Counted'.
ArcInner
SliceArcInnerForStatic Struct to hold the static ArcInner used for empty Arc<str/CStr/[T]> as returned by Default::default.
UniqueArc A uniquely owned Arc.
UniqueArcUninit A unique owning pointer to an ArcInner that does not imply the contents are initialized, but will deallocate it (without dropping the value) when dropped.
Weak Weak is a version of Arc that holds a non-owning reference to the managed allocation.
WeakInner Helper type to allow accessing the reference counts without making any assertions about the data field.

Traits

ArcEqIdent
ArcFromSlice Specialization trait used for From<&[T]>.
ToArcSlice Specialization trait used for collecting into Arc<[T]>.

Functions

arcinner_layout_for_value_layout Calculate layout for ArcInner<T> using the inner value's layout
data_offset Gets the offset within an ArcInner for the payload behind a pointer.
data_offset_alignment
panic_arc_overflow

Constants

MAX_REFCOUNT A soft limit on the amount of references that may be made to an Arc.
MAX_STATIC_INNER_SLICE_ALIGNMENT

Statics

STATIC_INNER_SLICE

Macros

acquire