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<WallT>

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

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

Trait Implementations

impl<T: Hash> Hash for Timestamp<T>

fn hash<__HT: Hasher>(&self, __arg_0: &mut __HT)

Feeds this value into the state given, updating the hasher as necessary.

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

Feeds a slice of this type into the state provided.

impl<T: Ord> Ord for Timestamp<T>

fn cmp(&self, __arg_0: &Timestamp<T>) -> Ordering

This method returns an Ordering between self and other.

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

fn partial_cmp(&self, __arg_0: &Timestamp<T>) -> Option<Ordering>

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

fn lt(&self, __arg_0: &Timestamp<T>) -> bool

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

fn le(&self, __arg_0: &Timestamp<T>) -> bool

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

fn gt(&self, __arg_0: &Timestamp<T>) -> bool

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

fn ge(&self, __arg_0: &Timestamp<T>) -> bool

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

impl<T: Eq> Eq for Timestamp<T>

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

fn eq(&self, __arg_0: &Timestamp<T>) -> bool

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

fn ne(&self, __arg_0: &Timestamp<T>) -> bool

This method tests for !=.

impl<T: Copy> Copy for Timestamp<T>

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: Debug> Debug for Timestamp<T>

fn fmt(&self, __arg_0: &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.