Struct State 

pub struct State {
    pub last_ts: SystemTime,
    pub node_id: NodeId,
    pub seq: u16,
}

Fields

last_ts: SystemTime

node_id: NodeId

seq: u16

Implementations

impl State

pub fn next(&mut self, timestamp: SystemTime) -> (SystemTime, u16)

This method returns the next [UUID]’s timestamp and clock sequence.

1. Increments this State’s timestamp by 100 ns,
2. compares this with the timestamp provided,
3. if the provided timestamp is greater or equal, the clock sequence is incremented,
4. the timestamp and clock sequence are returned.

Usage

use ps_uuid::STATE;
use std::time::SystemTime;

let (timestamp, clock_seq) = STATE.lock().next(SystemTime::now());

impl State

pub fn next_v7(&mut self, timestamp: SystemTime) -> SystemTime

This method returns the next UUIDv7’s timestamp.

1. Increments this State’s timestamp by 256 ns,
2. compares this with the timestamp provided, keeping the greater of the two,
3. replaces this State’s timestamp with the value,
4. returns the value.

Usage

use ps_uuid::STATE;
use std::time::SystemTime;

let next_ts = STATE.lock().next_v7(SystemTime::now());

Trait Implementations

impl Clone for State

fn clone(&self) -> State

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for State

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

Formats the value using the given formatter.

impl Default for State

fn default() -> Self

Returns the “default value” for a type.

impl Hash for State

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 State

fn cmp(&self, other: &State) -> 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 State

fn eq(&self, other: &State) -> 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 State

fn partial_cmp(&self, other: &State) -> 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 Copy for State

impl Eq for State

impl StructuralPartialEq for State