package wasmeld:clock@0.1.0;

/// Actor-local monotonic time for measuring elapsed durations.
interface monotonic-clock {
  /// Returns nanoseconds elapsed since this Actor Store was created.
  ///
  /// The value is monotonic and saturates at `u64::MAX`. It is not Unix time,
  /// cannot be compared across Actor restarts, and must not be persisted as a
  /// wall-clock timestamp.
  now: func() -> u64;
}

/// Host-side world used by Wasmeld to link the clock implementation.
world clock-host {
  import monotonic-clock;
}