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

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.

Returns whether the associated Once has successfully executed a closure.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

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

This method tests for !=.

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

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

The resulting type after obtaining ownership.

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

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

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

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.