Struct hybrid_clocks::Timestamp

pub struct Timestamp<T> {
    pub epoch: u32,
    pub time: T,
    pub count: u32,
}

A value that represents a logical timestamp.

These allow us to describe at least a partial ordering over events, in the same style as Lamport Clocks. In summary, if a < b then we can say that a logically happens-before b. Because they are scalar values, they can't be used to tell between whether:

• a happenned concurrently with b, or
• a is part of b's causal history, or vica-versa.

Fields

epoch: u32

An epoch counter.

time: T

The Wall-clock time as returned by the clock source.

count: u32

A Lamport clock used to disambiguate events that are given the same Wall-clock time. This is reset whenever time is incremented.

Methods

impl Timestamp<WallMST>

pub fn to_bytes(&self) -> [u8; 16]

pub fn from_bytes(bytes: [u8; 16]) -> Self

impl Timestamp<WallNST>

pub fn write_bytes<W: Write>(&self, wr: W) -> Result<(), Error>

pub fn to_bytes(&self) -> [u8; 16]

pub fn read_bytes<R: Read>(r: R) -> Result<Self, Error>

pub fn from_bytes(bytes: [u8; 16]) -> Self

impl<T> Timestamp<T>

pub fn time_into<U: From<T>>(self) -> Timestamp<U>

Trait Implementations

impl<T: PartialEq> PartialEq<Timestamp<T>> for Timestamp<T>

fn eq(&self, other: &Timestamp<T>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Timestamp<T>) -> bool

This method tests for !=.

impl<T: Clone> Clone for Timestamp<T>

fn clone(&self) -> Timestamp<T>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<T: Ord> Ord for Timestamp<T>

fn cmp(&self, other: &Timestamp<T>) -> Ordering

This method returns an Ordering between self and other.

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

Compares and returns the maximum of two values.

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

Compares and returns the minimum of two values.

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

🔬 This is a nightly-only experimental API. (clamp)

Restrict a value to a certain interval.

impl<T: Eq> Eq for Timestamp<T>

impl<T: Copy> Copy for Timestamp<T>

impl<T: PartialOrd> PartialOrd<Timestamp<T>> for Timestamp<T>

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

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

fn lt(&self, other: &Timestamp<T>) -> bool

This method tests less than (for self and other) and is used by the < operator.

fn le(&self, other: &Timestamp<T>) -> bool

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

fn gt(&self, other: &Timestamp<T>) -> bool

This method tests greater than (for self and other) and is used by the > operator.

fn ge(&self, other: &Timestamp<T>) -> bool

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

impl<T: Debug> Debug for Timestamp<T>

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

Formats the value using the given formatter.

impl<T: Display> Display for Timestamp<T>

fn fmt(&self, fmt: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<T: Hash> Hash for Timestamp<T>

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

Feeds this value into the given [Hasher].

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

Feeds a slice of this type into the given [Hasher].