Struct FrameworkSnapshot 

pub struct FrameworkSnapshot {
    pub counters: HashMap<String, u64>,
    pub fired_phases: Vec<String>,
    pub address_book: Vec<AddressBookEntrySnapshot>,
    pub peer_governor: PeerGovernorSnapshot,
    pub backoff_table: Vec<BackoffEntry>,
    pub pending_outbound: Vec<PendingOutboundEntry>,
    pub peer_id_bytes: Vec<u8>,
    pub next_command_id: u64,
    pub next_exec_id: u64,
    pub spec_version: u32,
}

Serializable view of FrameworkComponents per ENGINE.md §16. Captures counters, queued lifecycle phases, the multiaddr-keyed peer registries per docs/ADDRESSING.md, plus the PeerGovernor + BackoffTable policy/health state introduced in - so a restored Node remembers blocklisted peers, allowlist policy, and in-flight backoff cooldowns across restarts (no thundering herd on cold start).

Other framework primitives (peer_gate inflight counts) stay transient - they’re meaningful only within a single poll cycle.

Fields

counters: HashMap<String, u64>

Counters from Engine.counters keyed by metric name.

fired_phases: Vec<String>

Lifecycle phases queued for next poll() per Engine.fired_phases.

address_book: Vec<AddressBookEntrySnapshot>

AddressBook entries - ordered address list + reference count per peer (see AddressBookEntrySnapshot).

peer_governor: PeerGovernorSnapshot

PeerGovernor policy + health.

backoff_table: Vec<BackoffEntry>

Per-peer BackoffTable state.

pending_outbound: Vec<PendingOutboundEntry>

Pending outbound envelopes that didn’t make it to a Phase 8 drain before snapshotting. Each entry carries the redelivered flag so the host’s transport adapter can decide whether to retry or drop after restore.

peer_id_bytes: Vec<u8>

Canonical multihash bytes for the Node’s PeerId. Restore reconstructs the PeerId via PeerId::from_bytes(&peer_id_bytes), round-tripping every multihash code (identity, sha2-256, blake2b, …) without information loss.

next_command_id: u64

Engine ID counter persistence. The previous snapshot dropped next_command_id / next_exec_id, so a restored Node would mint ID 0 again — colliding with any in-flight command/exec the pre-snapshot Node had issued.

next_exec_id: u64

Same for ExecIds.

spec_version: u32

Snapshot schema version (incarnation distinct). Bumped when the FrameworkSnapshot shape changes in a way older code cannot soundly restore from.

Trait Implementations

impl Clone for FrameworkSnapshot

fn clone(&self) -> FrameworkSnapshot

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FrameworkSnapshot

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

Formats the value using the given formatter.

impl Default for FrameworkSnapshot

fn default() -> FrameworkSnapshot

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for FrameworkSnapshot

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for FrameworkSnapshot

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

where __S: Serializer,

Serialize this value into the given Serde serializer.