Struct DeliveredSample 

pub struct DeliveredSample {
    pub writer_guid: Guid,
    pub sequence_number: SequenceNumber,
    pub payload: Arc<[u8]>,
    pub kind: ChangeKind,
    pub key_hash: Option<[u8; 16]>,
    pub source_timestamp: Option<HeTimestamp>,
}

A sample delivered to the application.

Fields

writer_guid: Guid

GUID of the writer the sample comes from. Makes multi-writer deduplication possible in the caller.

sequence_number: SequenceNumber

Sequence number in the writer.

payload: Arc<[u8]>

Serialized payload (zero-copy via Arc::clone from the cache). Payload.

kind: ChangeKind

Spec §8.2.1.2 ChangeKind — Alive for normal samples, NotAliveDisposed / NotAliveUnregistered / NotAliveDisposedUnregistered for lifecycle markers that the writer sent via dispose/unregister_instance. Spec §9.6.3.9 PID_STATUS_INFO in the inline QoS.

key_hash: Option<[u8; 16]>

PID_KEY_HASH from the inline QoS (Spec §9.6.4.8). For lifecycle markers this is the identity of the disposed/ unregistered instance; for keyed-topic ALIVE samples optional (some vendors send an inline hash, some don’t). None if the writer does not supply a hash inline (typical for keyless topics).

source_timestamp: Option<HeTimestamp>

Source timestamp from the preceding INFO_TS submessage (DDSI-RTPS §8.7.3), if the writer sent one. Feeds SampleInfo.source_timestamp and DESTINATION_ORDER = BY_SOURCE_TIMESTAMP. None ⇒ the reader uses reception order.

Trait Implementations

impl Clone for DeliveredSample

fn clone(&self) -> DeliveredSample

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DeliveredSample

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

Formats the value using the given formatter.

impl Eq for DeliveredSample

impl PartialEq for DeliveredSample

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DeliveredSample