Source file src/github.com/opentracing/opentracing-go/ext.go

Documentation: github.com/opentracing/opentracing-go

     1  package opentracing
     2  
     3  import (
     4  	"context"
     5  )
     6  
     7  // TracerContextWithSpanExtension is an extension interface that the
     8  // implementation of the Tracer interface may want to implement. It
     9  // allows to have some control over the go context when the
    10  // ContextWithSpan is invoked.
    11  //
    12  // The primary purpose of this extension are adapters from opentracing
    13  // API to some other tracing API.
    14  type TracerContextWithSpanExtension interface {
    15  	// ContextWithSpanHook gets called by the ContextWithSpan
    16  	// function, when the Tracer implementation also implements
    17  	// this interface. It allows to put extra information into the
    18  	// context and make it available to the callers of the
    19  	// ContextWithSpan.
    20  	//
    21  	// This hook is invoked before the ContextWithSpan function
    22  	// actually puts the span into the context.
    23  	ContextWithSpanHook(ctx context.Context, span Span) context.Context
    24  }
    25  

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