Struct RingCursor 

pub struct RingCursor { /* private fields */ }

Caller-owned position in a ring walk.

The cursor stores the next counter a reader should attempt. Different subscribers keep independent cursors over the same ring.

Implementations

impl RingCursor

pub const fn from_start() -> Self

Start at counter 0 and replay whatever ring history is still available.

pub const fn from_counter(next_counter: u64) -> Self

Start from a known next counter.

pub const fn next_counter(self) -> u64

The next counter this cursor will read.

Trait Implementations

impl Clone for RingCursor

fn clone(&self) -> RingCursor

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RingCursor

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

Formats the value using the given formatter.

impl Default for RingCursor

fn default() -> RingCursor

Returns the “default value” for a type.

impl PartialEq for RingCursor

fn eq(&self, other: &RingCursor) -> 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 Copy for RingCursor

impl Eq for RingCursor

impl StructuralPartialEq for RingCursor