Struct ManualClock 

pub struct ManualClock { /* private fields */ }

A manually advanced clock, Send + Sync and cheaply cloneable.

All clones share one offset. now() returns base + elapsed, where base is fixed at construction and elapsed only changes through advance. Tests move virtual time forward; no wall-clock waiting is ever involved.

Note: advancing the clock does NOT run any scheduler work by itself. Virtual time only moves the timestamp provider; tests must still drain their scheduler explicitly after each advance before asserting.

Implementations

impl ManualClock

pub fn new() -> Self

Create a clock whose now() starts at the current instant.

pub fn advance(&self, by: Duration)

Move virtual time forward by by.

The offset is stored as u64 nanoseconds (about 584 years of headroom); larger advances saturate rather than wrap.

pub fn now(&self) -> Instant

The current virtual instant.

pub fn as_closure(self: &Arc<Self>) -> Arc<dyn Fn() -> Instant + Send + Sync>

A shared closure form suitable for injection points that take Arc<dyn Fn() -> Instant + Send + Sync>.

Trait Implementations

impl Clone for ManualClock

fn clone(&self) -> Self

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() -> Self

Returns the “default value” for a type.