Struct Event 

pub struct Event {
    pub time: Hlc,
    pub seq: u64,
    pub prev: Option<EventHash>,
    pub payload: Payload,
}

One event: who wrote it when, its place in the device’s chain, and what happened. An event is always a root object: {"type": "event", "kind": …, "time": …, "seq": …, "prev": …, …}.

Fields

time: Hlc

The timestamp; its device is the device that wrote the event.

seq: u64

Position in the device’s chain, starting at 1.

prev: Option<EventHash>

The hash of the device’s previous event; none for seq 1.

payload: Payload

What happened: kind and its members.

Implementations

impl Event

pub fn device(&self) -> &DeviceId

The device that wrote the event.

pub fn hash(&self) -> EventHash

The identity of an event written on this device: SHA-256 over its canonical encoding (spec part 0003).

A received event is identified by what was received, which may hold members this version does not know – use the hash EventSet::receive returns. An event built in code must keep its integers at or below 2^53 − 1.

Trait Implementations

impl Clone for Event

fn clone(&self) -> Event

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Event

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Event

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for Event

impl Hash for Event

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 Object for Event

const TYPE: &'static str = "event"

The type, written as "type" when the object stands on its own.

impl PartialEq for Event

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Event

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Event