Struct Span 

pub struct Span {
    pub context: SpanContext,
    pub name: String,
    pub kind: SpanKind,
    pub start_unix_ns: u64,
    pub end_unix_ns: u64,
    pub status: SpanStatus,
    pub status_description: Option<String>,
    pub attributes: Vec<Attribute>,
}

Ein abgeschlossener Span.

In ZeroDDS bauen wir Spans abgeschlossen auf — kein scope-guard-Magic. Caller misst Start/Ende manuell, der Sink bekommt das Result.

Fields

context: SpanContext

Span-Kontext (Trace+Span-ID + Parent).

name: String

Span-Name (z.B. "dcps.write").

kind: SpanKind

Span-Kind.

start_unix_ns: u64

Start-Time relativ zu einem monotonen Origin (ns).

end_unix_ns: u64

Ende-Time relativ zum gleichen Origin.

status: SpanStatus

Status.

status_description: Option<String>

Optionale Status-Beschreibung (z.B. Fehler-Message).

attributes: Vec<Attribute>

Attribute, beliebig viele.

Implementations

impl Span

pub fn duration_ns(&self) -> u64

Span-Dauer in Nanosekunden.

Trait Implementations

impl Clone for Span

fn clone(&self) -> Span

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Span

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

Formats the value using the given formatter.