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costtime.go
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costtime.go
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package costtime
import (
"fmt"
"log"
"os"
"runtime"
"strings"
"sync/atomic"
"time"
)
// CostTime 消费时间基本结构
type CostTime struct {
loglevel int64
logfirst int64
eventCost EventFunc
condition ConditionFunc
logprefix string
costlog *log.Logger
costlogNoDate *log.Logger
colors []*color
}
// New 创建一个新Cost. 每个协程里都要创建独立一个
func New() *CostTime {
c := &CostTime{}
c.loglevel = -1
c.costlog = func() *log.Logger {
l := log.New(os.Stderr, "", log.Ldate|log.Ltime)
return l
}()
c.costlogNoDate = func() *log.Logger {
l := log.New(os.Stderr, "", log.Ltime)
return l
}()
c.colors = []*color{
{
level: 0,
colorstr: "\033[32m%v\033[0m", //绿色
value: time.Millisecond * 100,
},
{
level: 1,
colorstr: "\033[36m%v\033[0m", //天蓝色
value: time.Millisecond * 500,
},
{
level: 2,
colorstr: "\033[34m%v\033[0m", //蓝色
value: time.Millisecond * 1000,
},
{
level: 3,
colorstr: "\033[33m%v\033[0m", //黄色
value: time.Millisecond * 2000,
},
{
level: 4,
colorstr: "\033[33m\033[05m%v\033[0m", //黄色闪烁
value: time.Millisecond * 4000,
},
{
level: 5,
colorstr: "\033[31m%v\033[0m", //红色
value: time.Millisecond * 8000,
},
{
level: 6,
colorstr: "\033[31m\033[05m%v\033[0m", //红色闪烁
value: time.Millisecond * 16000,
},
}
return c
}
// ConditionFunc 日志输出条件判断函数. 返回true输出. false 不输出
type ConditionFunc func(cost time.Duration) bool
// EventFunc 日志输出条件判断函数
type EventFunc func(cost time.Duration)
// var c.loglevel int64 = -1
// var colors = []string{"\033[32m%v\033[0m", "\033[34m%v\033[0m", "\033[31m%v\033[0m", "\033[31m\033[05m%v\033[0m"}
type color struct {
level int64
value time.Duration
colorstr string
}
func (c *CostTime) checkLevel(t time.Duration) *color {
for _, color := range c.colors {
if t <= color.value {
return color
}
}
return c.colors[len(c.colors)-1]
}
// SetLevel 设置自定义level输出一共7级. 小于等于value值就显示该级的颜色. 如: for 0 - 7 value +500ms
func (c *CostTime) SetLevel(level int64, value time.Duration) {
c.colors[level].value = value
}
// SetEeventCost 设置输出cost事件. 可以做邮件通知. 钉釘等办公通知
func (c *CostTime) SetEeventCost(event EventFunc) {
c.eventCost = event
}
// SetLogCondition 设置输出cost条件. 如. 大于500ms才输出. 一般配合 Cond后缀函数 使用. 默认全部输出
func (c *CostTime) SetLogCondition(cond ConditionFunc) {
c.condition = cond
}
// Cost 里面计算消耗时间
func (c *CostTime) Cost(run func()) {
atomic.AddInt64(&c.loglevel, 1)
defer func() {
atomic.AddInt64(&c.loglevel, -1)
}()
file, line, funcName := getRuntimeInfo()
now := time.Now()
run()
cost, selcolor := c.countCostColor(now)
if c.condition != nil {
if !c.condition(cost) {
return
}
}
coststr := fmt.Sprintf(selcolor, cost.Milliseconds())
var prefix string
if atomic.LoadInt64(&c.loglevel) > 0 {
lf := atomic.AddInt64(&c.logfirst, 1)
var logprefix string
if lf == 1 {
logprefix = "┌─"
} else {
logprefix = "├─"
}
for i := int64(0); i < c.loglevel-1; i++ {
logprefix += "──"
}
logprefix += " "
c.costlogNoDate.SetPrefix(logprefix)
prefix += fmt.Sprintf(selcolor, "● ")
c.costlogNoDate.Printf("%s%s:%d(%s %s ms)", prefix, file, line, funcName, coststr)
} else {
c.costlog.Printf("%s%s:%d(%s %s ms)", prefix, file, line, funcName, coststr)
atomic.StoreInt64(&c.logfirst, 0)
}
if c.eventCost != nil {
c.eventCost(cost)
}
}
// CostLog 计算消耗的时间
func (c *CostTime) CostLog(name string, run func()) {
atomic.AddInt64(&c.loglevel, 1)
defer func() {
atomic.AddInt64(&c.loglevel, -1)
}()
file, line, funcName := getRuntimeInfo()
now := time.Now()
run()
cost, selcolor := c.countCostColor(now)
if c.condition != nil {
if !c.condition(cost) {
return
}
}
coststr := fmt.Sprintf(selcolor, cost.Milliseconds())
var prefix string
if atomic.LoadInt64(&c.loglevel) > 0 {
lf := atomic.AddInt64(&c.logfirst, 1)
var logprefix string
if lf == 1 {
logprefix = "┌─"
} else {
logprefix = "├─"
}
for i := int64(0); i < c.loglevel-1; i++ {
logprefix += "──"
}
logprefix += " "
c.costlogNoDate.SetPrefix(logprefix)
prefix += fmt.Sprintf(selcolor, "● ")
c.costlogNoDate.Printf("%s%s:%d(%s %s ms): %s", prefix, file, line, funcName, coststr, name)
} else {
c.costlog.Printf("%s%s:%d(%s %s ms): %s", prefix, file, line, funcName, coststr, name)
atomic.StoreInt64(&c.logfirst, 0)
}
if c.eventCost != nil {
c.eventCost(cost)
}
}
func (c *CostTime) countCostColor(now time.Time) (time.Duration, string) {
cost := time.Now().Sub(now)
return cost, c.checkLevel(cost).colorstr // fmt.Sprintf(selcolor, cost.Milliseconds())
}
func getRuntimeInfo() (file string, line int, funcName string) {
pc, file, line, _ := runtime.Caller(3)
funcName = runtime.FuncForPC(pc).Name()
var i int
i = strings.LastIndexByte(funcName, '.')
funcName = funcName[i+1:]
i = strings.LastIndexByte(file, '/')
file = file[i+1:]
return file, line, funcName
}