Struct Span 

pub struct Span { /* private fields */ }

A timing span for instrumentation.

Spans track the duration of operations and can be nested hierarchically. They integrate with asupersync’s DiagnosticContext for distributed tracing.

Implementations

impl Span

pub fn new(ctx: &RequestContext, name: impl Into<String>) -> Self

Creates a new span.

pub fn child(&self, ctx: &RequestContext, name: impl Into<String>) -> Self

Creates a child span under this span.

pub fn name(&self) -> &str

Returns the span name.

pub fn span_id(&self) -> u64

Returns the span ID.

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

Returns the parent span ID if this is a child span.

pub fn elapsed(&self) -> Duration

Returns the elapsed duration since the span started.

pub fn end(&mut self) -> Duration

Ends the span and returns the duration.

Call this to explicitly end the span and log its duration. If not called, the span will be ended when dropped.

pub fn to_json(&self) -> String

Returns a JSON representation of the span timing.

Trait Implementations

impl Drop for Span

fn drop(&mut self)

Executes the destructor for this type.