Enum parking_lot::OnceState[−][src]

pub enum OnceState {
    New,
    Poisoned,
    InProgress,
    Done,
}
[−]

Current state of a Once.

Variants

New
[−]

A closure has not been executed yet

Poisoned
[−]

A closure was executed but panicked.

InProgress
[−]

A thread is currently executing a closure.

Done
[−]

A closure has completed successfully.

Implementations

impl OnceState[src][−]

pub fn poisoned(self) -> bool[src][−]

Returns whether the associated Once has been poisoned.

Once an initialization routine for a Once has panicked it will forever indicate to future forced initialization routines that it is poisoned.

pub fn done(self) -> bool[src][−]

Returns whether the associated Once has successfully executed a closure.

Trait Implementations

impl Clone for OnceState[src][+]

impl Copy for OnceState[src]

impl Debug for OnceState[src][+]

impl Eq for OnceState[src]

impl PartialEq<OnceState> for OnceState[src][+]

impl StructuralEq for OnceState[src]

impl StructuralPartialEq for OnceState[src]

Auto Trait Implementations

impl RefUnwindSafe for OnceState

impl Send for OnceState

impl Sync for OnceState

impl Unpin for OnceState

impl UnwindSafe for OnceState

Blanket Implementations

impl<T> Any for T where
    T: 'static + ?Sized, [src][+]

impl<T> Borrow<T> for T where
    T: ?Sized, [src][+]

impl<T> BorrowMut<T> for T where
    T: ?Sized, [src][+]

impl<T> From<T> for T[src][+]

impl<T, U> Into<U> for T where
    U: From<T>, [src][+]

impl<T> ToOwned for T where
    T: Clone, [src][+]

type Owned = T

The resulting type after obtaining ownership.

impl<T, U> TryFrom<U> for T where
    U: Into<T>, [src][+]

type Error = Infallible

The type returned in the event of a conversion error.

impl<T, U> TryInto<U> for T where
    U: TryFrom<T>, [src][+]

type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.