Struct TimestampOracle 

pub struct TimestampOracle { /* private fields */ }

A source of monotonically increasing timestamps for MVCC.

This oracle ensures that every transaction gets a unique logical timestamp for determining visibility and commit ordering.

• read_ts: The point in time a transaction reads from (snapshot).
• commit_ts: The point in time a transaction writes its changes.

Implementations

impl TimestampOracle

pub fn new(start_ts: u64) -> Self

Create a new TimestampOracle starting at the given timestamp.

pub fn next(&self) -> u64

Allocate and return the next timestamp. Returns the NEW value after incrementing.

pub fn read(&self) -> u64

Read the current timestamp without incrementing (e.g., for status checks).

Trait Implementations

impl Debug for TimestampOracle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for TimestampOracle

fn default() -> Self

Returns the “default value” for a type.