Struct Fenced 

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

A value tagged with the epoch in which it was produced.

Use this to stamp messages or state snapshots with an epoch so that recipients can reject stale data.

Implementations

impl<T> Fenced<T>

pub fn new(epoch: FenceEpoch, value: T) -> Self

Wrap a value with the given epoch.

pub fn at_zero(value: T) -> Self

Wrap a value at epoch 0.

pub fn epoch(&self) -> FenceEpoch

The epoch this value was produced in.

pub fn value(&self) -> &T

Borrow the inner value.

pub fn into_value(self) -> T

Consume the wrapper and return the inner value.

pub fn is_stale(&self, current_epoch: &FenceEpoch) -> bool

Returns true if this value’s epoch is behind current_epoch.

pub fn map<U>(self, f: impl FnOnce(T) -> U) -> Fenced<U>

Transform the inner value while keeping the same epoch.

Trait Implementations

impl<T: Clone> Clone for Fenced<T>

fn clone(&self) -> Fenced<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T: Debug> Debug for Fenced<T>

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

Formats the value using the given formatter.

impl<'de, T> Deserialize<'de> for Fenced<T>

where T: Deserialize<'de>,

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T: PartialEq> PartialEq for Fenced<T>

fn eq(&self, other: &Fenced<T>) -> bool

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<T> Serialize for Fenced<T>

where T: Serialize,

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T: Copy> Copy for Fenced<T>

impl<T: Eq> Eq for Fenced<T>

impl<T> StructuralPartialEq for Fenced<T>