Enum FeedRead 

pub enum FeedRead {
    Resync {
        generation: u64,
        tail: u64,
    },
    Future,
}

Why a feed read could not be served from the backlog.

Variants

Resync

Cursor unservable (stale generation or evicted offset): rebuild from a scan, then resume from the carried tail cursor.

Fields

generation: u64

Current generation.

tail: u64

Next offset the source will assign (resume point).

Future

Cursor is ahead of the stream (offset > next) in the current generation — caller bug or epoch confusion; reject the read.

Trait Implementations

impl Clone for FeedRead

fn clone(&self) -> FeedRead

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Copy for FeedRead

impl Debug for FeedRead

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

Formats the value using the given formatter.

impl Eq for FeedRead

impl PartialEq for FeedRead

fn eq(&self, other: &FeedRead) -> 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 FeedRead