mirror of
https://github.com/golang/go
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38 lines
722 B
Go
38 lines
722 B
Go
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// Copyright 2019 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package telemetry
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import (
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"fmt"
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"time"
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)
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type SpanContext struct {
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TraceID TraceID
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SpanID SpanID
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}
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type Span struct {
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Name string
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ID SpanContext
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ParentID SpanID
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Start time.Time
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Finish time.Time
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Tags TagList
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Events []Event
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}
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func (s *SpanContext) Format(f fmt.State, r rune) {
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fmt.Fprintf(f, "%v:%v", s.TraceID, s.SpanID)
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}
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func (s *Span) Format(f fmt.State, r rune) {
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fmt.Fprintf(f, "%v %v", s.Name, s.ID)
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if s.ParentID.IsValid() {
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fmt.Fprintf(f, "[%v]", s.ParentID)
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}
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fmt.Fprintf(f, " %v->%v", s.Start, s.Finish)
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}
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