tracer

Documentation

Overview

Package tracer provides mechanisms to propagate tracer in context.

Index

• func FromContext(ctx context.Context) otrace.Tracer
• func NewContext(ctx context.Context, t otrace.Tracer) context.Context
• func NewContextWithTracer(ctx context.Context, name string, opts ...otrace.TracerOption) context.Context
• func StartFromContext(ctx context.Context, name string, opts ...otrace.SpanStartOption) (context.Context, otrace.Span)

Functions

func FromContext

func FromContext(ctx context.Context) otrace.Tracer

FromContext returns the tracer that is attatched to the context or returns a new anonymous tracer if it does not exist.

func NewContext

func NewContext(ctx context.Context, t otrace.Tracer) context.Context

NewContext returns a derived context with the tracer set.

func NewContextWithTracer

func NewContextWithTracer(ctx context.Context, name string, opts ...otrace.TracerOption) context.Context

NewContextWithTracer returns a derived context with a new tracer set.

func StartFromContext

func StartFromContext(ctx context.Context, name string, opts ...otrace.SpanStartOption) (context.Context, otrace.Span)

StartFromContext returns a derived context with a new span started from the tracer in context.