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25 lines
870 B
Go
25 lines
870 B
Go
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package opentracing
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import (
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"context"
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)
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// TracerContextWithSpanExtension is an extension interface that the
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// implementation of the Tracer interface may want to implement. It
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// allows to have some control over the go context when the
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// ContextWithSpan is invoked.
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//
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// The primary purpose of this extension are adapters from opentracing
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// API to some other tracing API.
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type TracerContextWithSpanExtension interface {
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// ContextWithSpanHook gets called by the ContextWithSpan
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// function, when the Tracer implementation also implements
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// this interface. It allows to put extra information into the
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// context and make it available to the callers of the
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// ContextWithSpan.
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//
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// This hook is invoked before the ContextWithSpan function
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// actually puts the span into the context.
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ContextWithSpanHook(ctx context.Context, span Span) context.Context
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}
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