Enum parking_lot::OnceState

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

[−] Expand description

Current state of a Once.

Variants

New

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A closure has not been executed yet

Poisoned

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A closure was executed but panicked.

InProgress

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A thread is currently executing a closure.

Done

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A closure has completed sucessfully.

Methods

impl OnceState

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pub fn poisoned(&self) -> bool

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Returns whether the associated Once has been poisoned.

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

pub fn done(&self) -> bool

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Returns whether the associated Once has successfullly executed a closure.

Trait Implementations

impl Copy for OnceState

impl Clone for OnceState

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fn clone(&self) -> OnceState

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Returns a copy of the value.

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

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Performs copy-assignment from source.

impl Eq for OnceState

impl PartialEq for OnceState

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

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

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

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This method tests for !=.

impl Debug for OnceState

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

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Formats the value using the given formatter.