Struct LazyLock

pub struct LazyLock<T, Init = fn() -> T> { /* private fields */ }

Analogous to std::sync::LazyLock, but works on stable Rust, is no_std, only makes direct syscalls, etc.

Implementations

impl<T, Init> LazyLock<T, Init>

where Init: Producer<T>,

pub const fn const_new(initializer: Init) -> Self

pub fn new(initializer: Init) -> Self

pub fn force(&self) -> Ref<'_, T>

Force initialization and return a reference object.

std’s LazyLock returns an actual reference here and implements Deref. We can’t because of our usage of loom’s UnsafeCell, which doesn’t support getting a raw reference that’s not borrowed from an intermediate temp object.

pub fn initd(&self) -> bool

Whether self is initialized yet.

Trait Implementations

impl<T, Init> Deref for LazyLock<T, Init>

where Init: Producer<T>,

We only implement Deref outside of Loom, since Loom requires an intermediate object to catch invalid accesses to our internal UnsafeCells.

type Target = T

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.

impl<T, Init> Drop for LazyLock<T, Init>

fn drop(&mut self)

Executes the destructor for this type.

impl<T, Init> Send for LazyLock<T, Init>

where T: Send, Init: Send,

impl<T, Init> Sync for LazyLock<T, Init>

where T: Sync, Init: Send,