Function nextTick

enterprise/coderd/usage/cron.go:199–207

nextTick computes the delay until the next epoch-aligned boundary for the given interval, plus a random jitter in [0, jitter). It returns the target boundary and the total delay from now.

(now time.Time, interval, jitter time.Duration)

// for the given interval, plus a random jitter in [0, jitter). It
// returns the target boundary and the total delay from now.
func nextTick(now time.Time, interval, jitter time.Duration) (boundary time.Time, delay time.Duration) {
	boundary = nextBoundary(now, interval)
	delay = boundary.Sub(now)
	if jitter > 0 {
		//nolint:gosec // Jitter does not need cryptographic randomness.
		delay += time.Duration(rand.Int63n(int64(jitter)))
	}
	return boundary, delay
}

// nextBoundary returns the first multiple of interval (relative to
// epoch) that is strictly after t.