Crate qubit_clock 

Injectable wall clocks, monotonic clocks, and deterministic timers.

Wall time and monotonic time are deliberately separate. Long-lived services can inject WallClock for business timestamps, while timeout and delay code injects MonotonicClock or Timer. A BlockingSleeper can adapt the same timer when synchronous code must block, provided the timer backend can progress while the calling thread is parked. Manual implementations allow tests to advance logical time without waiting for real time to pass.

Examples

A manual timer can drive a blocking sleep without waiting for real time:

use qubit_clock::{
    BlockingSleeper, ManualMonotonicClock, MonotonicClock,
};
use std::time::Duration;

let clock = ManualMonotonicClock::new_shared();
let sleeper = BlockingSleeper::new(clock.new_timer());
let worker = std::thread::spawn(move || {
    sleeper
        .sleep_for(Duration::from_secs(5))
        .expect("manual sleep should complete");
});

assert!(clock.wait_for_waiters(1, Duration::from_secs(1)));
clock
    .advance(Duration::from_secs(5))
    .expect("manual time should advance");
worker.join().expect("sleeping thread should finish");

Re-exports

pub use error::TokioRuntimeError;tokio

pub use error::TimeError;

pub use error::TimerUnavailableError;

pub use monotonic::ClockDomain;

pub use monotonic::ManualDeadlineFuture;

pub use monotonic::ManualMonotonicClock;

pub use monotonic::ManualWaiterFuture;

pub use monotonic::MonotonicClock;

pub use monotonic::MonotonicInstant;

pub use monotonic::StdMonotonicClock;

pub use sleep::BlockingSleeper;

pub use timer::ManualTimer;

pub use timer::StdTimer;

pub use timer::Timer;

pub use timer::TimerFuture;

pub use wall::FixedWallClock;

pub use wall::ManualWallClock;

pub use wall::StdWallClock;

pub use wall::WallClock;

pub use monotonic::TokioMonotonicClock;tokio

pub use timer::TokioTimer;tokio

Modules

error

Error types exposed by this crate.

monotonic

Monotonic clocks and domain-scoped instants.

sleep

Blocking adaptation over asynchronous monotonic timers.

test_utiltest-util

Test-only Timer implementations for deterministic failure injection.

timer

Timer capabilities for asynchronous deadline notification.

wall

Wall-clock abstractions and implementations.