1
0
mirror of https://github.com/golang/go synced 2024-11-19 01:24:39 -07:00
go/internal/telemetry/trace.go

38 lines
722 B
Go
Raw Normal View History

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