Struct CheckpointAssignmentFence 

pub struct CheckpointAssignmentFence {
    pub assignment_version: u64,
    pub partitioning_abi_version: u16,
    pub vnode_count: u32,
    pub assignment_digest: [u8; 32],
    pub participants: Vec<CheckpointParticipant>,
}

Versioned proof of one exact vnode-owner map and its process-complete participant roster.

Fields

assignment_version: u64

Exact vnode-assignment version covered by this proof.

partitioning_abi_version: u16

Key encoding, hashing, and key-group mapping contract covered by this proof.

vnode_count: u32

Number of vnodes in the ordered owner map.

assignment_digest: [u8; 32]

SHA-256 of the partitioning ABI, vnode_count, and ordered vnode-to-owner map.

participants: Vec<CheckpointParticipant>

Canonical participants, sorted by node id and bound to exact boot incarnations.

Implementations

impl CheckpointAssignmentFence

pub fn from_owner_map( assignment_version: u64, owners: &[u64], participants: Vec<CheckpointParticipant>, ) -> Result<Self, String>

Build a certificate from the exact ordered vnode-owner map.

Errors

Returns an error when the version, owner map, or participant roster is non-canonical.

pub fn owner_map_digest(vnode_count: u32, owners: &[u64]) -> [u8; 32]

Stable digest of the current partitioning ABI and a canonical ordered vnode-owner map.

pub fn is_canonical(&self) -> bool

Whether every field has its canonical production shape.

pub fn contains(&self, node_id: u64) -> bool

Whether node_id belongs to the canonical participant roster.

pub fn participant_incarnation(&self, node_id: u64) -> Option<Uuid>

Exact boot identity certified for node_id.

pub fn participant_ids(&self) -> Vec<u64>

Canonical participant node ids.

pub fn matches_owner_map(&self, owners: &[u64]) -> bool

Whether this certificate binds the supplied exact ordered owner map.

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

Stable SHA-256 binding of every certificate dimension.

Trait Implementations

impl Clone for CheckpointAssignmentFence

fn clone(&self) -> CheckpointAssignmentFence

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for CheckpointAssignmentFence

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for CheckpointAssignmentFence

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for CheckpointAssignmentFence

impl PartialEq for CheckpointAssignmentFence

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for CheckpointAssignmentFence

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 CheckpointAssignmentFence