Struct CooperationState 

pub struct CooperationState {
    pub sessions: Vec<SessionView>,
    pub claims: Vec<ClaimView>,
    pub overlaps: Vec<ClaimOverlap>,
    pub handovers: Vec<HandoverView>,
    pub reviews: Vec<ReviewView>,
    pub opaque_events: usize,
    pub digest: String,
}

The whole folded state, every collection in key order, and its digest: two runtimes that agree print the same digest.

The digest is the point. Convergence is otherwise a claim nobody can check from one machine; with it, two operators compare one short string and know whether their runtimes are looking at the same world. opaque_events is the other half of that honesty: events of kinds this executable does not interpret are counted and relayed rather than dropped, so a newer peer’s traffic is visible instead of silently missing.

use std::sync::Arc;
use majordomus_cli::mesh::identity::NodeIdentity;
use majordomus_cli::mesh::journal::{EventBody, Journal, SessionInfo, StreamLiveness};
use majordomus_cli::mesh::state::{fold, CooperationState};

let j = Journal::open(Arc::new(NodeIdentity::ephemeral().unwrap()), "0000000000000001",
    "repo".into(), None).unwrap();
j.append_own(EventBody::SessionOpened { info: SessionInfo::named("s1", "cli") }).unwrap();

let events = j.events();
let state: CooperationState = fold(&events, &|_| StreamLiveness::Own);
assert_eq!(state.digest.len(), 32);

// the same events in another order, and twice over, are the same state
let mut shuffled = events.clone();
shuffled.reverse();
shuffled.extend(events);
assert_eq!(fold(&shuffled, &|_| StreamLiveness::Own).digest, state.digest);

Fields

sessions: Vec<SessionView>

Every session.

claims: Vec<ClaimView>

Every claim.

overlaps: Vec<ClaimOverlap>

Advisory overlaps between live claims.

handovers: Vec<HandoverView>

Every handover.

reviews: Vec<ReviewView>

Every review request.

opaque_events: usize

Events of kinds this executable does not interpret.

digest: String

32 hex of the SHA-256 of the canonical JSON of everything above.

Trait Implementations

impl Clone for CooperationState

fn clone(&self) -> CooperationState

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CooperationState

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

Formats the value using the given formatter.

impl Default for CooperationState

fn default() -> CooperationState

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for CooperationState

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for CooperationState

impl JsonSchema for CooperationState

fn schema_name() -> Cow<'static, str>

The name of the generated JSON Schema.

fn schema_id() -> Cow<'static, str>

Returns a string that uniquely identifies the schema produced by this type.

fn json_schema(generator: &mut SchemaGenerator) -> Schema

Generates a JSON Schema for this type.

fn inline_schema() -> bool

Whether JSON Schemas generated for this type should be included directly in parent schemas, rather than being re-used where possible using the $ref keyword.

impl PartialEq for CooperationState

fn eq(&self, other: &CooperationState) -> 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 Serialize for CooperationState

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 CooperationState