Struct AtomicOption

pub struct AtomicOption<T>(/* private fields */);

Atomized Option type.

Implementations

impl<T> AtomicOption<T>

pub fn new(value: Option<T>) -> Self

pub fn get(&self) -> Option<&'static T>

Example

use sync::atomic::AtomicOption;

let opt = AtomicOption::<u8>::new(None);
assert_eq!(opt.get().is_none(), true);
assert!(opt.is_none());
assert!(!opt.is_some());

let b = opt.swap(Some(1));
assert_eq!(b, None);
assert_eq!(opt.get().is_none(), false);
assert!(!opt.is_none());
assert!(opt.is_some());

pub fn swap(&self, value: Option<T>) -> Option<T>

Example

use sync::atomic::AtomicOption;

let opt = AtomicOption::<u8>::new(None);
assert_eq!(opt.get().is_none(), true);
assert!(opt.is_none());
assert!(!opt.is_some());

let b = opt.swap(Some(1));
assert_eq!(b, None);
assert_eq!(opt.get().is_none(), false);
assert!(!opt.is_none());
assert!(opt.is_some());

pub fn is_none(&self) -> bool

Example

use sync::atomic::AtomicOption;

let opt = AtomicOption::<u8>::new(None);
assert_eq!(opt.get().is_none(), true);
assert!(opt.is_none());
assert!(!opt.is_some());

let b = opt.swap(Some(1));
assert_eq!(b, None);
assert_eq!(opt.get().is_none(), false);
assert!(!opt.is_none());
assert!(opt.is_some());

pub fn is_some(&self) -> bool

Example

use sync::atomic::AtomicOption;

let opt = AtomicOption::<u8>::new(None);
assert_eq!(opt.get().is_none(), true);
assert!(opt.is_none());
assert!(!opt.is_some());

let b = opt.swap(Some(1));
assert_eq!(b, None);
assert_eq!(opt.get().is_none(), false);
assert!(!opt.is_none());
assert!(opt.is_some());

Trait Implementations

impl<T> Default for AtomicOption<T>

fn default() -> Self

Returns the “default value” for a type.

impl<T> Drop for AtomicOption<T>

fn drop(&mut self)

Executes the destructor for this type.