std :: sys :: thread_local :: key :: racy :: LazyKey

Struct `LazyKey`

pub struct LazyKey { pub(in ::sys::thread_local::key::racy) key: Atomic<usize>, pub(in ::sys::thread_local::key::racy) dtor: Option<unsafe extern "C" fn(*mut u8)> }

A type for TLS keys that are statically allocated.

This is basically a LazyLock<Key>, but avoids blocking and circular dependencies with the rest of std.

Fields

key: Atomic<usize>: Inner static TLS key (internals).
dtor: Option<unsafe extern "C" fn(*mut u8)>: Destructor for the TLS value.

Implementations

`impl LazyKey`

const fn new(dtor: Option<unsafe extern "C" fn(*mut u8)>) -> LazyKey
fn force(&self) -> pthread_key_t
fn lazy_init(&self) -> usize

Auto Trait Implementations

`impl !Freeze for LazyKey`

`impl RefUnwindSafe for LazyKey`

`impl Send for LazyKey`

`impl Sync for LazyKey`

`impl Unpin for LazyKey`

`impl UnsafeUnpin for LazyKey`

`impl UnwindSafe for LazyKey`

Blanket Implementations

`impl<T> Any for LazyKey where T: 'static + ?Sized,`

fn type_id(&self) -> TypeId

`impl<T> Borrow<T> for LazyKey where T: ?Sized,`

fn borrow(&self) -> &T

`impl<T> BorrowMut<T> for LazyKey where T: ?Sized,`

fn borrow_mut(&mut self) -> &mut T

`impl<T> From<T> for LazyKey`

fn from(t: T) -> T: Returns the argument unchanged.

`impl<T> SizeHint for LazyKey where T: ?Sized,`

fn lower_bound(&self) -> usize
fn upper_bound(&self) -> Option<usize>

`impl<T> SizedTypeProperties for LazyKey`

`impl<T, U> Into for LazyKey where U: From<T>,`

fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of [From]<T> for U chooses to do.

`impl<T, U> TryFrom for LazyKey where U: Into<T>,`

type Error = Infallible;
fn try_from(value: U) -> Result<T, <T as TryFrom>::Error>

`impl<T, U> TryInto for LazyKey where U: TryFrom<T>,`

type Error = >::Error;
fn try_into(self) -> Result<U, >::Error>