package traceutil

import "go.etcd.io/etcd/pkg/v3/traceutil"

Package traceutil implements tracing utilities using "context".

Index ¶

• Constants
• type Field
• type Trace
• func Get(ctx context.Context) *Trace
• func New(op string, lg *zap.Logger, fields ...Field) *Trace
• func TODO() *Trace
• func (t *Trace) AddField(fields ...Field)
• func (t *Trace) GetStartTime() time.Time
• func (t *Trace) InsertStep(at int, time time.Time, msg string, fields ...Field)
• func (t *Trace) IsEmpty() bool
• func (t *Trace) Log()
• func (t *Trace) LogAllStepsIfLong(threshold time.Duration)
• func (t *Trace) LogIfLong(threshold time.Duration)
• func (t *Trace) LogWithStepThreshold(threshold time.Duration)
• func (t *Trace) SetStartTime(time time.Time)
• func (t *Trace) StartSubTrace(fields ...Field)
• func (t *Trace) Step(msg string, fields ...Field)
• func (t *Trace) StepWithFunction(f func(), msg string, fields ...Field)
• func (t *Trace) StopSubTrace(fields ...Field)

Constants ¶

const (
	TraceKey     = "trace"
	StartTimeKey = "startTime"
)

Types ¶

type Field ¶

type Field struct {
	Key   string
	Value interface{}
}

Field is a kv pair to record additional details of the trace.

type Trace ¶

type Trace struct {
	// contains filtered or unexported fields
}

func Get ¶

func Get(ctx context.Context) *Trace

func New ¶

func New(op string, lg *zap.Logger, fields ...Field) *Trace

func TODO ¶

func TODO() *Trace

TODO returns a non-nil, empty Trace

func (*Trace) AddField ¶

func (t *Trace) AddField(fields ...Field)

func (*Trace) GetStartTime ¶

func (t *Trace) GetStartTime() time.Time

func (*Trace) InsertStep ¶

func (t *Trace) InsertStep(at int, time time.Time, msg string, fields ...Field)

func (*Trace) IsEmpty ¶

func (t *Trace) IsEmpty() bool

func (*Trace) Log ¶

func (t *Trace) Log()

Log dumps all steps in the Trace

func (*Trace) LogAllStepsIfLong ¶

func (t *Trace) LogAllStepsIfLong(threshold time.Duration)

LogAllStepsIfLong dumps all logs if the duration is longer than threshold

func (*Trace) LogIfLong ¶

func (t *Trace) LogIfLong(threshold time.Duration)

LogIfLong dumps logs if the duration is longer than threshold

func (*Trace) LogWithStepThreshold ¶

func (t *Trace) LogWithStepThreshold(threshold time.Duration)

LogWithStepThreshold only dumps step whose duration is longer than step threshold

func (*Trace) SetStartTime ¶

func (t *Trace) SetStartTime(time time.Time)

func (*Trace) StartSubTrace ¶

func (t *Trace) StartSubTrace(fields ...Field)

StartSubTrace adds step to trace as a start sign of sublevel trace All steps in the subtrace will log out the input fields of this function

func (*Trace) Step ¶

func (t *Trace) Step(msg string, fields ...Field)

Step adds step to trace

func (*Trace) StepWithFunction ¶

func (t *Trace) StepWithFunction(f func(), msg string, fields ...Field)

StepWithFunction will measure the input function as a single step

func (*Trace) StopSubTrace ¶

func (t *Trace) StopSubTrace(fields ...Field)

StopSubTrace adds step to trace as a end sign of sublevel trace All steps in the subtrace will log out the input fields of this function

Source Files ¶

trace.go