std::trace¶

Status: shipped

W3C trace-context-compatible distributed tracing. Identifier types, request-scoped SpanContext, process-level Tracer, and OTLP JSON export.

Public items¶

Name	Kind	Description
TraceId	type	128-bit trace identifier (W3C trace-context format).
SpanId	type	64-bit span identifier.
SpanContext	type	Request-scoped trace + span pair, propagated through std::context.
SpanStatus	type	Span outcome: Unset / Ok / Error(message).
Span	type	Active span builder. Attributes, events, status; end() finalises and records.
EndedSpan	type	Finalised span record; to_otlp_json() serialises for OTLP/HTTP export.
Tracer	type	Process-level span sink. start_span, ended_spans, set_global.
SpanGuard	type	RAII guard returned by enter_span; restores the prior active span on drop.
enter_span	fn	Sets ctx as the active span on the current goroutine; returns a SpanGuard.
current_span_context	fn	Reads the active SpanContext, if any.
with_span_context	fn	Runs f with ctx installed as the active SpanContext.