Enum PreferredLifetime

pub enum PreferredLifetime<Instant> {
    Preferred(Lifetime<Instant>),
    Deprecated,
}

An address’ preferred lifetime information.

Variants

Preferred(Lifetime<Instant>)

Address is preferred. It can be used for new connections.

Lifetime indicates until when the address is expected to remain in preferred state.

Deprecated

Address is deprecated, it should not be used for new connections.

Implementations

impl<Instant> PreferredLifetime<Instant>

pub const fn preferred_until(instant: Instant) -> PreferredLifetime<Instant>

Creates a new PreferredLifetime that is preferred until instant.

pub const fn preferred_forever() -> PreferredLifetime<Instant>

Creates a new PreferredLifetime that is preferred with an infinite lifetime.

pub const fn is_deprecated(&self) -> bool

Returns true if the address is deprecated.

pub fn map_instant<N, F>(self, f: F) -> PreferredLifetime<N>

where F: FnOnce(Instant) -> N,

Maps the instant value in this PreferredLifetime with f.

impl<I> PreferredLifetime<I>

where I: Instant,

pub fn preferred_for( now: I, duration: NonZeroNdpLifetime, ) -> PreferredLifetime<I>

Creates a new PreferredLifetime that is preferred for duration after now.

pub fn maybe_preferred_for( now: I, duration: Option<NonZeroNdpLifetime>, ) -> PreferredLifetime<I>

Creates a new PreferredLifetime that is preferred for duration after now if it is Some, deprecated otherwise.

Trait Implementations

impl<Instant> Clone for PreferredLifetime<Instant>

where Instant: Clone,

fn clone(&self) -> PreferredLifetime<Instant>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<Instant> Debug for PreferredLifetime<Instant>

where Instant: Debug,

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

Formats the value using the given formatter.

impl<Instant> Default for PreferredLifetime<Instant>

fn default() -> PreferredLifetime<Instant>

Returns the “default value” for a type.

impl<Instant> Hash for PreferredLifetime<Instant>

where Instant: Hash,

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl<I> InspectableValue for PreferredLifetime<I>

where I: Instant,

fn record<N>(&self, name: &str, inspector: &mut N)

where N: Inspector,

Records this value into inspector.

impl<Instant> Ord for PreferredLifetime<Instant>

where Instant: Ord,

fn cmp(&self, other: &PreferredLifetime<Instant>) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl<Instant> PartialEq for PreferredLifetime<Instant>

where Instant: PartialEq,

fn eq(&self, other: &PreferredLifetime<Instant>) -> 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<Instant> PartialOrd for PreferredLifetime<Instant>

where Instant: PartialOrd,

fn partial_cmp(&self, other: &PreferredLifetime<Instant>) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl<Instant> Copy for PreferredLifetime<Instant>

where Instant: Copy,

impl<Instant> Eq for PreferredLifetime<Instant>

where Instant: Eq,

impl<Instant> StructuralPartialEq for PreferredLifetime<Instant>