Struct DurabilitySample 

pub struct DurabilitySample {
    pub topic: String,
    pub instance_key: [u8; 16],
    pub sequence: u64,
    pub payload: Vec<u8>,
    pub representation: u8,
    pub big_endian: bool,
    pub created_at: SystemTime,
    pub source_guid: [u8; 16],
    pub source_sequence: i64,
}

A stored durability sample. The (instance_key, sequence) pair is the stable ordering key within a topic.

Fields

topic: String

Topic name.

instance_key: [u8; 16]

Instance KeyHash (RTPS §9.6.4.8, 16 bytes).

sequence: u64

Writer-assigned monotonic sequence number.

payload: Vec<u8>

Encoded payload (XCDR2 serialized body).

representation: u8

XCDR representation of payload from the encapsulation header (RTPS 2.5 §10.5): 0 = XCDR1 (CDR/PL_CDR), 1 = XCDR2 (CDR2/D_CDR2/PL_CDR2). The replay writer re-declares it so a late-joiner reads the body with the right alignment.

big_endian: bool

Wire byte order of payload: false = little-endian, true = big-endian. A big-endian peer’s stored sample holds big-endian body bytes; the replay writer must emit a matching _BE encap header (otherwise a late-joiner mis-decodes). Defaults to little-endian.

created_at: SystemTime

Source/creation wall-clock timestamp.

source_guid: [u8; 16]

GUID of the writer that originally emitted this sample (16 bytes). With source_sequence this is the globally-unique source identity a durability service uses to dedup a writer’s history against its live stream, and across a service restart (O2 P5). All-zero when unknown.

source_sequence: i64

The source writer’s RTPS sequence number for this sample (DDSI-RTPS §8.3.5.4). -1 when the ingest path had no source sequence (intra-runtime or pre-P5 stored samples), in which case it does not participate in source-identity dedup.

Trait Implementations

impl Clone for DurabilitySample

fn clone(&self) -> DurabilitySample

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for DurabilitySample

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

Formats the value using the given formatter.

impl Eq for DurabilitySample

impl PartialEq for DurabilitySample

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for DurabilitySample