Struct ViewEpoch 

pub struct ViewEpoch(/* private fields */);

Opaque monotonic epoch counter.

Incremented when the view system (via its configured EpochPolicy) determines a discontinuity occurred that warrants segmenting temporal state.

Within a single uninterrupted feed session with CameraMode::Fixed, the epoch never changes. Even for fixed feeds, epoch increments on feed restart.

Implementations

impl ViewEpoch

pub const INITIAL: Self

The initial epoch (zero).

pub fn new(val: u64) -> Self

Create from a raw value.

pub fn next(self) -> Self

Return the next epoch.

pub fn as_u64(self) -> u64

Returns the raw value.

Trait Implementations

impl Clone for ViewEpoch

fn clone(&self) -> ViewEpoch

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ViewEpoch

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

Formats the value using the given formatter.

impl Default for ViewEpoch

fn default() -> ViewEpoch

Returns the “default value” for a type.

impl Display for ViewEpoch

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

Formats the value using the given formatter.

impl Hash for ViewEpoch

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

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 Ord for ViewEpoch

fn cmp(&self, other: &ViewEpoch) -> 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 PartialEq for ViewEpoch

fn eq(&self, other: &ViewEpoch) -> 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 PartialOrd for ViewEpoch

fn partial_cmp(&self, other: &ViewEpoch) -> 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 Copy for ViewEpoch

impl Eq for ViewEpoch

impl StructuralPartialEq for ViewEpoch