Struct SpanCollector 

pub struct SpanCollector { /* private fields */ }

Thread-local span collector. Accumulates completed spans and tracks the active span stack for automatic parent assignment.

Implementations

impl SpanCollector

pub fn new() -> Self

pub fn start(&mut self, kind: SpanKind, name: String) -> u64

Start a new span. Returns the span ID.

pub fn set_metadata(&mut self, span_id: u64, key: &str, value: Value)

Attach metadata to an open span.

pub fn end(&mut self, span_id: u64)

End a span. Moves it from open to completed.

pub fn current_span_id(&self) -> Option<u64>

Get the current active span ID (if any).

pub fn take_spans(&mut self) -> Vec<Span>

Take all completed spans (drains the collector).

pub fn spans(&self) -> &[Span]

Peek at all completed spans (non-destructive).

pub fn reset(&mut self)

Reset the collector.

Trait Implementations

impl Default for SpanCollector

fn default() -> Self

Returns the “default value” for a type.