Struct ach_once::Once

pub struct Once<T> { /* private fields */ }

Implementations

impl<T> Once<T>

pub const fn new() -> Self

pub const fn new_with(init: T) -> Self

pub fn is_initialized(&self) -> bool

pub fn take(&mut self) -> Option<T>

pub fn into_inner(self) -> Option<T>

pub fn try_get(&self) -> Result<&T, Error<()>>

Tries to get a reference to the value of the Cell.

Returns Err if the cell is uninitialized or in critical section.

pub fn get(&self) -> Result<&T, Error<()>>

Tries to get a reference to the value of the Cell.

Returns Err if the cell is uninitialized.

Notice: Spin

pub fn get_mut(&mut self) -> Option<&mut T>

pub fn try_set(&self, value: T) -> Result<(), Error<T>>

Sets the value of the Cell to the argument value.

Returns Err if the value is initialized or in critical section.

pub fn set(&self, value: T) -> Result<(), Error<T>>

Sets the value of the Cell to the argument value.

Returns Err if the value is initialized.

Notice: Spin

pub fn get_or_try_init(&self, value: T) -> Result<&T, Error<T>>

Tries to get a reference to the value of the Cell.

Returns Err if the cell is in critical section.

pub fn get_or_init(&self, value: T) -> &T

Tries to get a reference to the value of the Cell.

Notice: Spin

Trait Implementations

impl<T: Debug> Debug for Once<T>

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

Formats the value using the given formatter.

impl<T> Drop for Once<T>

fn drop(&mut self)

Executes the destructor for this type.