Enum parking_lot::OnceState

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pub enum OnceState {
    New,
    Poisoned,
    InProgress,
    Done,
}

Expand description

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

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impl OnceState

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pub fn poisoned(self) -> bool

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.

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pub fn done(self) -> bool

Returns whether the associated Once has successfully executed a closure.

Trait Implementations

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impl Clone for OnceState

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fn clone(&self) -> OnceState

Returns a copy of the value. Read more

1.0.0 · source

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more

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impl Debug for OnceState

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more

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impl PartialEq<OnceState> for OnceState

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fn eq(&self, other: &OnceState) -> bool

This method tests for self and other values to be equal, and is used by ==. Read more

1.0.0 · source

fn ne(&self, other: &Rhs) -> bool

This method tests for !=.

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impl StructuralPartialEq for OnceState

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

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

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more

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

const: unstable · source

fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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

const: unstable · source

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

Mutably borrows from an owned value. Read more

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impl<T> From<T> for T

const: unstable · source

fn from(t: T) -> T

Returns the argument unchanged.

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

const: unstable · source

fn into(self) -> U

Calls U::from(self).

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

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impl<T> ToOwned for T where
T: Clone,

type Owned = T

The resulting type after obtaining ownership.

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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more

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fn clone_into(&self, target: &mut T)

🔬 This is a nightly-only experimental API. (toowned_clone_into)

Uses borrowed data to replace owned data, usually by cloning. Read more

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

type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

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

type Error = >::Error

The type returned in the event of a conversion error.

const: unstable · source

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

Performs the conversion.

Enum parking_lot::OnceState

Variants

New

Poisoned

InProgress

Done

Implementations

impl OnceState

pub fn poisoned(self) -> bool

pub fn done(self) -> bool

Trait Implementations

impl Clone for OnceState

fn clone(&self) -> OnceState

fn clone_from(&mut self, source: &Self)

impl Debug for OnceState

fn fmt(&self, f: &mut Formatter<'_>) -> Result

impl PartialEq<OnceState> for OnceState

fn eq(&self, other: &OnceState) -> bool

fn ne(&self, other: &Rhs) -> bool

impl Copy for OnceState

impl Eq for OnceState

impl StructuralEq for OnceState

impl StructuralPartialEq for OnceState

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,

fn type_id(&self) -> TypeId

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

fn borrow(&self) -> &T

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

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

impl<T> From<T> for T

fn from(t: T) -> T

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

fn into(self) -> U

impl<T> ToOwned for T where T: Clone,

type Owned = T

fn to_owned(&self) -> T

fn clone_into(&self, target: &mut T)

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

type Error = Infallible

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

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

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

fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

`New`

`Poisoned`

`InProgress`

`Done`

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

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

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

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

impl<T> ToOwned for T where
T: Clone,

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

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