Package net.openhft.chronicle.core.time

Supplies time providers and utilities for obtaining or setting precise wall-clock timestamps.

See: Description

Interface Summary

Interface	Description
TimeProvider	Supplies wall clock timestamps in milliseconds, microseconds and nanoseconds.

Class Summary

Class	Description
LongTime
SetTimeProvider	A TimeProvider implementation that allows explicit setting and manipulation of time values for testing purposes.
UniqueMicroTimeProvider	A TimeProvider implementation that ensures unique timestamps across threads within a single process.

Enum Summary

Enum	Description
PosixTimeProvider	Provides time based on the Posix standard, particularly utilizing native code to access high-resolution time.
SystemTimeProvider	Synthesises a nanosecond wall clock from the system clock.

Package net.openhft.chronicle.core.time Description

Supplies time providers and utilities for obtaining or setting precise wall-clock timestamps. Implementations range from simple Java wrappers to native-backed providers and tools for unique or user-defined times.

Comparison of time providers

Provider	Precision and behaviour
SystemTimeProvider	Pure Java; synthesises nanoseconds using System.nanoTime and System.currentTimeMillis.
PosixTimeProvider	Uses native clock_gettime for high resolution.
UniqueMicroTimeProvider	Ensures unique microsecond timestamps across threads using a delegate provider.
SetTimeProvider	Manually settable time with optional auto-increment for tests.

Quick start

 TimeProvider timeProvider = PosixTimeProvider.INSTANCE;
 long now = timeProvider.currentTimeNanos();