Struct WalSegmentEnvelope 

pub struct WalSegmentEnvelope {
    pub kind: WalEnvelopeKind,
    pub format_version: u32,
    pub payload_checksum: String,
    pub payload: WalSegmentPayload,
}

In-memory view of a WAL segment envelope.

This struct is not the durable layout; durable bytes are produced only by encode_wal_segment_envelope_zstd and validated only by decode_wal_segment_envelope_zstd.

Fields

kind: WalEnvelopeKind

Durable-family discriminator checked before payload decoding.

format_version: u32

Family-local format version, which must equal WAL_FORMAT_VERSION.

payload_checksum: String

Digest of the encoded payload bytes exactly as stored in the durable document, in sha256:<hex> form.

payload: WalSegmentPayload

Decoded namespace segment content protected by payload_checksum.

Implementations

impl WalSegmentEnvelope

pub fn from_payload( payload: WalSegmentPayload, ) -> Result<Self, EnvelopeCodecError>

Builds a versioned envelope and computes its checksum from canonical CBOR payload bytes.

Construction fails when the payload cannot be encoded.

pub fn pointer(&self, object_key: String) -> WalSegmentPointer

Projects the integrity and sequence metadata needed to link this stored segment from a head.

Trait Implementations

impl Clone for WalSegmentEnvelope

fn clone(&self) -> WalSegmentEnvelope

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WalSegmentEnvelope

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WalSegmentEnvelope

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for WalSegmentEnvelope

impl PartialEq for WalSegmentEnvelope

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for WalSegmentEnvelope

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 WalSegmentEnvelope