Enum ReadResult 

pub enum ReadResult {
    Hit(Frame),
    Miss {
        reason: MissReason,
        observed_watermark_ms: Option<u64>,
    },
}

Semantic result of one remote read.

Variants

Hit(Frame)

A complete frame that passed decoding and, for tracked keys, the fence.

Miss

A classified miss. observed_watermark_ms is the valid invalidation watermark read atomically with a tracked value, when one existed; a refill stamped at or before it is known to remain unreadable.

Fields

reason: MissReason

Why no servable frame was produced.

observed_watermark_ms: Option<u64>

The fence described on the variant; always None for untracked keys once normalized.

Implementations

impl ReadResult

pub fn miss(reason: MissReason) -> Self

A miss that observed no watermark.

pub fn is_miss(&self) -> bool

true for ReadResult::Miss of any reason.

Trait Implementations

impl Clone for ReadResult

fn clone(&self) -> ReadResult

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ReadResult

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

Formats the value using the given formatter.

impl Eq for ReadResult

impl PartialEq for ReadResult

fn eq(&self, other: &ReadResult) -> 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 StructuralPartialEq for ReadResult