trace_context.h File Reference

#include <cstdint>
#include <optional>
#include <string>
#include <string_view>
#include <vector>
#include <absl/status/status.h>
#include <absl/status/statusor.h>
#include "a11/data/types.h"

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Classes
struct	a11::obs::BaggageEntry
	One decoded W3C baggage member propagated through nested and remote actions. More...
struct	a11::obs::TraceContext
	SDK-independent W3C parent context recovered from reserved action headers. More...

Namespaces
namespace	a11
namespace	a11::obs

Functions
absl::StatusOr< std::optional< TraceContext > >	a11::obs::ExtractTraceContext (const data::ByteMap &headers)
	Extract a remote parent; nullopt means no tracing headers were supplied.
absl::Status	a11::obs::InjectTraceContext (const TraceContext &context, data::ByteMap &headers)
	Serialize context into reserved headers, replacing existing values.

Variables
constexpr std::string_view	a11::obs::kTraceparentHeader = "x-otel-traceparent"
	Reserved action header carrying the W3C traceparent value.
constexpr std::string_view	a11::obs::kTracestateHeader = "x-otel-tracestate"
	Reserved action header carrying the W3C tracestate value.
constexpr std::string_view	a11::obs::kBaggageHeader = "x-otel-baggage"
	Reserved action header carrying request-scoped W3C baggage.