Struct Membership 

pub struct Membership { /* private fields */ }

A chain derived exclusively from verified signed predecessors. No server observation or resulting-state DTO can construct this value directly.

Implementations

impl Membership

pub fn verify_initial_key( &self, key: &LocalSharedStatePackageKey, ) -> Result<VerifiedKeys>

Initial-generation-only construction for existing protected seed authority.

impl Membership

pub fn from_publication( genesis: &Genesis, descriptor: &[u8], publication: &[u8], ) -> Result<Self>

pub fn head(&self) -> [u8; 32]

pub fn sequence(&self) -> u64

pub fn has_device(&self, device: [u8; 32]) -> bool

pub fn devices(&self) -> impl Iterator<Item = [u8; 32]> + '_

pub fn admissions(&self) -> impl Iterator<Item = ([u8; 32], u64)> + '_

Active devices with the membership sequence that admitted each; the device that set up sync has sequence 0.

pub fn has_admission(&self, handle: [u8; 32]) -> bool

Whether an active member owns this admitted invitation.

pub fn record_action(record: &[u8]) -> Result<([u8; 32], u8)>

Signer and action framing, not signature or successor verification.

pub fn device_count(&self) -> usize

pub fn genesis(&self) -> &Genesis

pub fn publication(&self) -> &Publication

pub fn extends(&self, previous: &Self) -> bool

Ancestry, not a claim that either checkpoint is the latest server head.

pub fn authenticate( &self, auth: &Authentication<'_>, ancestor: bool, ) -> Result<()>

Authenticate the actual credential before examining its requested head.

pub fn head_at(&self, sequence: u64) -> Option<[u8; 32]>

pub fn validate_key(&self, key: &LocalSharedStatePackageKey) -> Result<()>

pub fn contains_head(&self, head: &[u8; 32]) -> bool

pub fn append( &self, declaration: &[u8], request: &[u8], record: &[u8], ) -> Result<Self>

Validate one exact successor without mutating the trusted predecessor. Expiry, current bearer authorization and atomic server CAS are separate.

pub fn ensure_change_capacity(&self) -> Result<()>

Room for the costlier outcome of an invitation: withdrawing it with a freeze and key rotation, which also covers admitting its device.

pub fn rotation_pending(&self) -> bool

pub fn generations(&self) -> &[Generation]

pub fn current_generation(&self) -> &Generation

pub fn generation_allows(&self, generation: [u8; 32], sequence: u64) -> bool

Signed interval eligibility, not proof of server acceptance or completeness.

Trait Implementations

impl Clone for Membership

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.