Module clock 

Clock abstractions for event-driven runtimes. Clock abstractions for event-driven runtimes.

Clock is a resource registered in the World. Handlers read it via Res<Clock>. Sync sources install into the World via the Installer trait and return pollers that sync the clock each poll loop iteration.

Three sync sources:

• RealtimeClockInstaller → RealtimeClockPoller — production
• TestClockInstaller → TestClockPoller — deterministic testing
• HistoricalClockInstaller → HistoricalClockPoller — replay

The RealtimeClockPoller calibration design is inspired by Agrona’s OffsetEpochNanoClock.

Structs

Clock

The current time — registered as a World resource.

HistoricalClockInstaller

Installer for the historical (replay) clock.

HistoricalClockPoller

Runtime poller for historical (replay) clock — auto-advances per sync.

RealtimeClockInstaller

Installer for the realtime clock. Consumed at setup.

RealtimeClockInstallerBuilder

Builder for RealtimeClockInstaller.

RealtimeClockPoller

Runtime poller for the realtime clock.

TestClockInstaller

Installer for the test clock.

TestClockPoller

Runtime poller for the test clock — manually controlled.

Enums

ConfigError

Configuration error from clock construction.