Struct ManualClock 

pub struct ManualClock { /* private fields */ }

An explicitly-advanced logical clock for deterministic replay and backtests.

The watermark only ever moves forward: advance_to ignores regressions, guaranteeing monotonicity even under concurrent advances. Clones share the same underlying watermark, so a harness can hold one handle while a stream operator holds another.

Implementations

impl ManualClock

pub fn new() -> Self

A new clock at LogicalTime::ZERO.

pub fn at(start: LogicalTime) -> Self

A new clock starting at start.

pub fn advance_to(&self, target: LogicalTime)

Advance the watermark to target. Monotonic — a target at or below the current watermark is a no-op.

pub fn advance_by(&self, delta: LogicalTime)

Advance the watermark by delta.

pub fn watermark(&self) -> LogicalTime

The current watermark.

Trait Implementations

impl Clock for ManualClock

fn now(&self) -> LogicalTime

The current logical instant.

impl Clone for ManualClock

fn clone(&self) -> ManualClock

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ManualClock

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

Formats the value using the given formatter.

impl Default for ManualClock

fn default() -> ManualClock

Returns the “default value” for a type.