a11::obs::Tracer Class Reference

Factory that makes parentage explicit for A11's migrating fibers. More...

#include <cpp/a11/obs/tracer.h>

Static Public Member Functions
static Span	StartSpan (std::string_view name, SpanKind kind, const TraceContext *parent)
	Continue parent, or begin a root when it is null or empty.
static Span	StartChildSpan (std::string_view name, SpanKind kind, const Span &parent)
	Start an in-process child and inherit the parent's baggage.
static Span	StartRootSpan (std::string_view name, SpanKind kind, std::string_view preassigned_trace_id={})
	Start a root span, optionally using a preassigned 32-character trace id.

Detailed Description

Factory that makes parentage explicit for A11's migrating fibers.

A remote TraceContext or in-process Span is always supplied explicitly; OpenTelemetry's thread-local current span cannot represent handlers that migrate between workers. Every method returns an inactive Span when tracing is unconfigured, so instrumentation needs no conditional path.

Member Function Documentation

StartChildSpan()

Span a11::obs::Tracer::StartChildSpan ( std::string_view  name, SpanKind  kind, const Span &  parent  )

static

Start an in-process child and inherit the parent's baggage.

StartRootSpan()

Span a11::obs::Tracer::StartRootSpan ( std::string_view  name, SpanKind  kind, std::string_view  preassigned_trace_id = {}  )

static

Start a root span, optionally using a preassigned 32-character trace id.

StartSpan()

Span a11::obs::Tracer::StartSpan ( std::string_view  name, SpanKind  kind, const TraceContext *  parent  )

static

Continue parent, or begin a root when it is null or empty.

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The documentation for this class was generated from the following files:

• cpp/a11/obs/tracer.h
• cpp/a11/obs/tracer.cc