Struct SpanContext 

pub struct SpanContext {
    pub trace_id: u128,
    pub span_id: u64,
    pub parent_span_id: Option<u64>,
    pub sampled: bool,
}

Immutable identity and sampling context for a span, equivalent to the OpenTelemetry SpanContext.

Fields

trace_id: u128

128-bit trace identifier shared by all spans in a trace.

span_id: u64

64-bit identifier unique within the trace.

parent_span_id: Option<u64>

span_id of the parent span, or None for a root span.

sampled: bool

Whether this span is sampled (i.e. should be exported).

Implementations

impl SpanContext

pub fn new_root(sampled: bool) -> Self

Creates a new root-level span context with freshly generated IDs.

pub fn child(&self) -> Self

Creates a child span context that inherits trace_id and records this span as the parent.

Trait Implementations

impl Clone for SpanContext

fn clone(&self) -> SpanContext

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for SpanContext

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

Formats the value using the given formatter.

impl Eq for SpanContext

impl PartialEq for SpanContext

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for SpanContext