Trait atomic_traits::fetch::Update

pub trait Update {
    type Type;
    fn fetch_update<F>(
        &self, 
        f: F, 
        fetch_order: Ordering, 
        set_order: Ordering
    ) -> Result<Self::Type, Self::Type>
    where
        F: FnMut(Self::Type) -> Option<Self::Type>;
}

Fetches the value, and applies a function to it that returns an optional new value.

Associated Types

type Type

The underlying type

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Required methods

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

Fetches the value, and applies a function to it that returns an optional new value.

Returns a Result of Ok(previous_value) if the function returned Some(_), else Err(previous_value).

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Implementations on Foreign Types

impl Update for AtomicIsize

type Type = isize

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicUsize

type Type = usize

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicI8

type Type = i8

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicI16

type Type = i16

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicI32

type Type = i32

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicI64

type Type = i64

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicU8

type Type = u8

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicU16

type Type = u16

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicU32

type Type = u32

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

impl Update for AtomicU64

type Type = u64

fn fetch_update<F>(
    &self,
    f: F,
    fetch_order: Ordering,
    set_order: Ordering
) -> Result<Self::Type, Self::Type> where
    F: FnMut(Self::Type) -> Option<Self::Type>, 

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Implementors

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