Struct ConsistentTimestamp

pub struct ConsistentTimestamp(pub u64);

Timestamp that tries to be consistent and monotonic across cluster by incorporating node’s unique id and a per-node counter.

It’s designed to have the same resolution as a nanoseconds precision timestamp by encoding node id and counter in nanoseconds.

It is similar to Twitter’s Snowflake (https://t.co/cLj36EQWR1) even though it has not been designed out of it. As opposed to Snowflake, this consistent timestamp has a per node sequence number instead of per thread.

Tuple Fields

0: u64

Implementations

impl ConsistentTimestamp

pub fn from_context( unix_elapsed: Duration, counter: u64, node_clock_id: u16, ) -> ConsistentTimestamp

pub fn from_unix_elapsed(dur: Duration) -> ConsistentTimestamp

pub fn to_datetime(self) -> DateTime<Utc>

pub fn unix_elapsed_duration(self) -> Duration

Trait Implementations

impl Add<Duration> for ConsistentTimestamp

type Output = ConsistentTimestamp

The resulting type after applying the + operator.

fn add(self, rhs: Duration) -> Self::Output

Performs the + operation.

impl Add for ConsistentTimestamp

type Output = ConsistentTimestamp

The resulting type after applying the + operator.

fn add(self, rhs: ConsistentTimestamp) -> Self::Output

Performs the + operation.

impl Clone for ConsistentTimestamp

fn clone(&self) -> ConsistentTimestamp

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ConsistentTimestamp

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ConsistentTimestamp

fn deserialize<D>( deserializer: D, ) -> Result<Self, <D as Deserializer<'de>>::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl From<ConsistentTimestamp> for DateTime<Utc>

fn from(s: ConsistentTimestamp) -> Self

Converts to this type from the input type.

impl From<ConsistentTimestamp> for Timestamp

fn from(ts: ConsistentTimestamp) -> Self

Converts to this type from the input type.

impl From<ConsistentTimestamp> for u64

fn from(ts: ConsistentTimestamp) -> Self

Converts to this type from the input type.

impl From<DateTime<Utc>> for ConsistentTimestamp

fn from(date: DateTime<Utc>) -> Self

Converts to this type from the input type.

impl From<Timestamp> for ConsistentTimestamp

fn from(ts: Timestamp) -> Self

Converts to this type from the input type.

impl From<u64> for ConsistentTimestamp

fn from(value: u64) -> Self

Converts to this type from the input type.

impl Hash for ConsistentTimestamp

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ConsistentTimestamp

fn cmp(&self, other: &ConsistentTimestamp) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

impl PartialEq for ConsistentTimestamp

fn eq(&self, other: &ConsistentTimestamp) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl PartialOrd for ConsistentTimestamp

fn partial_cmp(&self, other: &ConsistentTimestamp) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

fn lt(&self, other: &Rhs) -> bool

Tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Rhs) -> bool

Tests less than or equal to (for self and other) and is used by the <= operator.

fn gt(&self, other: &Rhs) -> bool

Tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Rhs) -> bool

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ConsistentTimestamp

fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>

where S: Serializer,

Serialize this value into the given Serde serializer.

impl Sub<Duration> for ConsistentTimestamp

type Output = ConsistentTimestamp

The resulting type after applying the - operator.

fn sub(self, rhs: Duration) -> Self::Output

Performs the - operation.

impl Sub for ConsistentTimestamp

type Output = Option<Duration>

The resulting type after applying the - operator.

fn sub(self, rhs: ConsistentTimestamp) -> Self::Output

Performs the - operation.

impl Copy for ConsistentTimestamp

impl Eq for ConsistentTimestamp

impl StructuralPartialEq for ConsistentTimestamp