Function mz_adapter::coord::timeline::monotonic_now

pub fn monotonic_now(now: NowFn, previous_now: Timestamp) -> Timestamp

Returns the current system time while protecting against backwards time jumps.

The caller is responsible for providing the previously recorded system time via the previous_now parameter.

If previous_now is more than TIMESTAMP_INTERVAL_UPPER_BOUND * TIMESTAMP_PERSIST_INTERVAL milliseconds ahead of the current system time (i.e., due to a backwards time jump), this function will block until the system time advances.

The returned time is guaranteed to be greater than or equal to previous_now.