mirror of
https://github.com/chrislusf/seaweedfs
synced 2024-08-28 20:50:48 +02:00
glide has its own requirements. My previous workaround caused me some code checkin errors. Need to fix this.
95 lines
2 KiB
Go
95 lines
2 KiB
Go
package stats
|
|
|
|
import (
|
|
"time"
|
|
)
|
|
|
|
type TimedValue struct {
|
|
t time.Time
|
|
val int64
|
|
}
|
|
|
|
func NewTimedValue(t time.Time, val int64) *TimedValue {
|
|
return &TimedValue{t: t, val: val}
|
|
}
|
|
|
|
type RoundRobinCounter struct {
|
|
LastIndex int
|
|
Values []int64
|
|
Counts []int64
|
|
}
|
|
|
|
func NewRoundRobinCounter(slots int) *RoundRobinCounter {
|
|
return &RoundRobinCounter{LastIndex: -1, Values: make([]int64, slots), Counts: make([]int64, slots)}
|
|
}
|
|
func (rrc *RoundRobinCounter) Add(index int, val int64) {
|
|
if index >= len(rrc.Values) {
|
|
return
|
|
}
|
|
for rrc.LastIndex != index {
|
|
rrc.LastIndex = (rrc.LastIndex + 1) % len(rrc.Values)
|
|
rrc.Values[rrc.LastIndex] = 0
|
|
rrc.Counts[rrc.LastIndex] = 0
|
|
}
|
|
rrc.Values[index] += val
|
|
rrc.Counts[index]++
|
|
}
|
|
func (rrc *RoundRobinCounter) Max() (max int64) {
|
|
for _, val := range rrc.Values {
|
|
if max < val {
|
|
max = val
|
|
}
|
|
}
|
|
return
|
|
}
|
|
func (rrc *RoundRobinCounter) Count() (cnt int64) {
|
|
for _, c := range rrc.Counts {
|
|
cnt += c
|
|
}
|
|
return
|
|
}
|
|
func (rrc *RoundRobinCounter) Sum() (sum int64) {
|
|
for _, val := range rrc.Values {
|
|
sum += val
|
|
}
|
|
return
|
|
}
|
|
|
|
func (rrc *RoundRobinCounter) ToList() (ret []int64) {
|
|
index := rrc.LastIndex
|
|
step := len(rrc.Values)
|
|
for step > 0 {
|
|
step--
|
|
index++
|
|
if index >= len(rrc.Values) {
|
|
index = 0
|
|
}
|
|
ret = append(ret, rrc.Values[index])
|
|
}
|
|
return
|
|
}
|
|
|
|
type DurationCounter struct {
|
|
MinuteCounter *RoundRobinCounter
|
|
HourCounter *RoundRobinCounter
|
|
DayCounter *RoundRobinCounter
|
|
WeekCounter *RoundRobinCounter
|
|
}
|
|
|
|
func NewDurationCounter() *DurationCounter {
|
|
return &DurationCounter{
|
|
MinuteCounter: NewRoundRobinCounter(60),
|
|
HourCounter: NewRoundRobinCounter(60),
|
|
DayCounter: NewRoundRobinCounter(24),
|
|
WeekCounter: NewRoundRobinCounter(7),
|
|
}
|
|
}
|
|
|
|
// Add is for cumulative counts
|
|
func (sc *DurationCounter) Add(tv *TimedValue) {
|
|
sc.MinuteCounter.Add(tv.t.Second(), tv.val)
|
|
sc.HourCounter.Add(tv.t.Minute(), tv.val)
|
|
sc.DayCounter.Add(tv.t.Hour(), tv.val)
|
|
sc.WeekCounter.Add(int(tv.t.Weekday()), tv.val)
|
|
}
|