counter

Documentation

Index

• type Counter
  • func NewGauge() Counter
  • func NewRolling(window time.Duration, winBucket int) Counter
• type Group
  • func (g *Group) Add(key string, value int64)
  • func (g *Group) Reset(key string)
  • func (g *Group) Value(key string) int64

Types

type Counter

type Counter interface {
	Add(int64)
	Reset()
	Value() int64
}

Counter is a counter interface.

func NewGauge

func NewGauge() Counter

NewGauge return a guage counter.

func NewRolling

func NewRolling(window time.Duration, winBucket int) Counter

NewRolling creates a new window. windowTime is the time covering the entire window. windowBuckets is the number of buckets the window is divided into. An example: a 10 second window with 10 buckets will have 10 buckets covering 1 second each.

type Group

type Group struct {

	// New optionally specifies a function to generate a counter.
	// It may not be changed concurrently with calls to other functions.
	New func() Counter
	// contains filtered or unexported fields
}

Group is a counter group.

func (*Group) Add

func (g *Group) Add(key string, value int64)

Add add a counter by a specified key, if counter not exists then make a new one and return new value.

func (*Group) Reset

func (g *Group) Reset(key string)

Reset reset a counter by key.

func (*Group) Value

func (g *Group) Value(key string) int64

Value get a counter value by key.