Struct Tracer 

pub struct Tracer { /* private fields */ }

Collects completed spans and broadcasts them to subscribers.

Implementations

impl Tracer

pub fn new() -> Self

Create a new tracer.

pub fn start(self: &Arc<Self>, name: &str, kind: SpanKind) -> SpanGuard

Start a root span.

pub fn start_with_parent( self: &Arc<Self>, name: &str, kind: SpanKind, parent: Option<&SpanContext>, ) -> SpanGuard

Start a child span with optional parent context.

pub fn trace(&self, trace_id: TraceId) -> Vec<Span>

Retrieve all spans for a given trace ID.

pub fn subscribe(&self) -> Receiver<Span>

Subscribe to completed span events.

Trait Implementations

impl Clone for Tracer

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Tracer

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

Formats the value using the given formatter.

impl Default for Tracer

fn default() -> Self

Returns the “default value” for a type.