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add comments for toolbox packages

This commit is contained in:
傅小黑 2014-01-29 19:12:00 +08:00
parent 682544165f
commit 1d08a54f44
5 changed files with 75 additions and 46 deletions

View File

@ -29,16 +29,13 @@ type pointerInfo struct {
used []int
}
//
// print the data in console
//
func Display(data ...interface{}) {
display(true, data...)
}
//
// return string
//
// return data print string
func GetDisplayString(data ...interface{}) string {
return display(false, data...)
}
@ -67,9 +64,7 @@ func display(displayed bool, data ...interface{}) string {
return buf.String()
}
//
// return fomateinfo
//
// return data dump and format bytes
func fomateinfo(headlen int, data ...interface{}) []byte {
var buf = new(bytes.Buffer)
@ -108,6 +103,7 @@ func fomateinfo(headlen int, data ...interface{}) []byte {
return buf.Bytes()
}
// check data is golang basic type
func isSimpleType(val reflect.Value, kind reflect.Kind, pointers **pointerInfo, interfaces *[]reflect.Value) bool {
switch kind {
case reflect.Bool:
@ -158,6 +154,7 @@ func isSimpleType(val reflect.Value, kind reflect.Kind, pointers **pointerInfo,
return false
}
// dump value
func printKeyValue(buf *bytes.Buffer, val reflect.Value, pointers **pointerInfo, interfaces *[]reflect.Value, structFilter func(string, string) bool, formatOutput bool, indent string, level int) {
var t = val.Kind()
@ -367,6 +364,7 @@ func printKeyValue(buf *bytes.Buffer, val reflect.Value, pointers **pointerInfo,
}
}
// dump pointer value
func printPointerInfo(buf *bytes.Buffer, headlen int, pointers *pointerInfo) {
var anyused = false
var pointerNum = 0
@ -434,9 +432,7 @@ func printPointerInfo(buf *bytes.Buffer, headlen int, pointers *pointerInfo) {
}
}
//
// get stack info
//
// get stack bytes
func stack(skip int, indent string) []byte {
var buf = new(bytes.Buffer)
@ -455,7 +451,7 @@ func stack(skip int, indent string) []byte {
return buf.Bytes()
}
// function returns, if possible, the name of the function containing the PC.
// return the name of the function containing the PC if possible,
func function(pc uintptr) []byte {
fn := runtime.FuncForPC(pc)
if fn == nil {

View File

@ -13,12 +13,15 @@ package toolbox
//AddHealthCheck("database",&DatabaseCheck{})
// health checker map
var AdminCheckList map[string]HealthChecker
// health checker interface
type HealthChecker interface {
Check() error
}
// add health checker with name string
func AddHealthCheck(name string, hc HealthChecker) {
AdminCheckList[name] = hc
}

View File

@ -19,6 +19,7 @@ func init() {
pid = os.Getpid()
}
// parse input command string
func ProcessInput(input string, w io.Writer) {
switch input {
case "lookup goroutine":
@ -44,6 +45,7 @@ func ProcessInput(input string, w io.Writer) {
}
}
// record memory profile in pprof
func MemProf() {
if f, err := os.Create("mem-" + strconv.Itoa(pid) + ".memprof"); err != nil {
log.Fatal("record memory profile failed: %v", err)
@ -54,6 +56,7 @@ func MemProf() {
}
}
// start cpu profile monitor
func StartCPUProfile() {
f, err := os.Create("cpu-" + strconv.Itoa(pid) + ".pprof")
if err != nil {
@ -62,10 +65,12 @@ func StartCPUProfile() {
pprof.StartCPUProfile(f)
}
// stop cpu profile monitor
func StopCPUProfile() {
pprof.StopCPUProfile()
}
// print gc information to io.Writer
func PrintGCSummary(w io.Writer) {
memStats := &runtime.MemStats{}
runtime.ReadMemStats(memStats)
@ -114,7 +119,7 @@ func avg(items []time.Duration) time.Duration {
return time.Duration(int64(sum) / int64(len(items)))
}
// human readable format
// format bytes number friendly
func toH(bytes uint64) string {
switch {
case bytes < 1024:

View File

@ -7,6 +7,7 @@ import (
"time"
)
// Statistics struct
type Statistics struct {
RequestUrl string
RequestController string
@ -16,12 +17,15 @@ type Statistics struct {
TotalTime time.Duration
}
// UrlMap contains several statistics struct to log different data
type UrlMap struct {
lock sync.RWMutex
LengthLimit int //limit the urlmap's length if it's equal to 0 there's no limit
urlmap map[string]map[string]*Statistics
}
// add statistics task.
// it needs request method, request url, request controller and statistics time duration
func (m *UrlMap) AddStatistics(requestMethod, requestUrl, requestController string, requesttime time.Duration) {
m.lock.Lock()
defer m.lock.Unlock()
@ -65,6 +69,7 @@ func (m *UrlMap) AddStatistics(requestMethod, requestUrl, requestController stri
}
}
// put url statistics result in io.Writer
func (m *UrlMap) GetMap(rw io.Writer) {
m.lock.RLock()
defer m.lock.RUnlock()
@ -78,6 +83,7 @@ func (m *UrlMap) GetMap(rw io.Writer) {
}
}
// global statistics data map
var StatisticsMap *UrlMap
func init() {

View File

@ -53,6 +53,7 @@ const (
starBit = 1 << 63
)
// time taks schedule
type Schedule struct {
Second uint64
Minute uint64
@ -62,8 +63,10 @@ type Schedule struct {
Week uint64
}
// task func type
type TaskFunc func() error
// task interface
type Tasker interface {
GetStatus() string
Run() error
@ -73,21 +76,24 @@ type Tasker interface {
GetPrev() time.Time
}
// task error
type taskerr struct {
t time.Time
errinfo string
}
// task struct
type Task struct {
Taskname string
Spec *Schedule
DoFunc TaskFunc
Prev time.Time
Next time.Time
Errlist []*taskerr //errtime:errinfo
ErrLimit int //max length for the errlist 0 stand for there' no limit
Errlist []*taskerr // like errtime:errinfo
ErrLimit int // max length for the errlist, 0 stand for no limit
}
// add new task with name, time and func
func NewTask(tname string, spec string, f TaskFunc) *Task {
task := &Task{
@ -99,6 +105,7 @@ func NewTask(tname string, spec string, f TaskFunc) *Task {
return task
}
// get current task status
func (tk *Task) GetStatus() string {
var str string
for _, v := range tk.Errlist {
@ -107,6 +114,7 @@ func (tk *Task) GetStatus() string {
return str
}
// run task
func (tk *Task) Run() error {
err := tk.DoFunc()
if err != nil {
@ -117,53 +125,58 @@ func (tk *Task) Run() error {
return err
}
// set next time for this task
func (tk *Task) SetNext(now time.Time) {
tk.Next = tk.Spec.Next(now)
}
// get the next call time of this task
func (tk *Task) GetNext() time.Time {
return tk.Next
}
// set prev time of this task
func (tk *Task) SetPrev(now time.Time) {
tk.Prev = now
}
// get prev time of this task
func (tk *Task) GetPrev() time.Time {
return tk.Prev
}
//前6个字段分别表示
// 秒钟0-59
// 分钟0-59
// 小时1-23
// 日期1-31
// 月份1-12
// 星期0-60表示周日
// six columns mean
// second0-59
// minute0-59
// hour1-23
// day1-31
// month1-12
// week0-60 means Sunday
//还可以用一些特殊符号
// * 表示任何时刻
// , 表示分割如第三段里2,4表示2点和4点执行
//   表示一个段,如第三端里: 1-5就表示1到5点
// /n : 表示每个n的单位执行一次如第三段里*/1, 就表示每隔1个小时执行一次命令。也可以写成1-23/1.
// some signals
// * any time
// ,  separate signal
//   duration
// /n : do as n times of time duration
/////////////////////////////////////////////////////////
// 0/30 * * * * * 每30秒 执行
// 0 43 21 * * * 21:43 执行
// 0 15 05 * * *    05:15 执行
// 0 0 17 * * * 17:00 执行
// 0 0 17 * * 1 每周一的 17:00 执行
// 0 0,10 17 * * 0,2,3 每周日,周二,周三的 17:00和 17:10 执行
// 0 0-10 17 1 * * 毎月1日从 17:00到7:10 毎隔1分钟 执行
// 0 0 0 1,15 * 1 毎月1日和 15日和 一日的 0:00 执行
// 0 42 4 1 * *     毎月1日的 4:42分 执行
// 0 0 21 * * 1-6   周一到周六 21:00 执行
// 0 0,10,20,30,40,50 * * * *  每隔10分 执行
// 0 */10 * * * *        每隔10分 执行
// 0 * 1 * * *         从1:0到1:59 每隔1分钟 执行
// 0 0 1 * * *         1:00 执行
// 0 0 */1 * * *        毎时0分 每隔1小时 执行
// 0 0 * * * *         毎时0分 每隔1小时 执行
// 0 2 8-20/3 * * *       8:02,11:02,14:02,17:02,20:02 执行
// 0 30 5 1,15 * *       1日 和 15日的 5:30 执行
// 0/30 * * * * * every 30s
// 0 43 21 * * * 21:43
// 0 15 05 * * *    05:15
// 0 0 17 * * * 17:00
// 0 0 17 * * 1 17:00 in every Monday
// 0 0,10 17 * * 0,2,3 17:00 and 17:10 in every Sunday, Tuesday and Wednesday
// 0 0-10 17 1 * * 17:00 to 17:10 in 1 min duration each time on the first day of month
// 0 0 0 1,15 * 1 0:00 on the 1st day and 15th day of month
// 0 42 4 1 * *     4:42 on the 1st day of month
// 0 0 21 * * 1-6   21:00 from Monday to Saturday
// 0 0,10,20,30,40,50 * * * *  every 10 min duration
// 0 */10 * * * *        every 10 min duration
// 0 * 1 * * *         1:00 to 1:59 in 1 min duration each time
// 0 0 1 * * *         1:00
// 0 0 */1 * * *        0 min of hour in 1 hour duration
// 0 0 * * * *         0 min of hour in 1 hour duration
// 0 2 8-20/3 * * *       8:02, 11:02, 14:02, 17:02, 20:02
// 0 30 5 1,15 * *       5:30 on the 1st day and 15th day of month
func (t *Task) SetCron(spec string) {
t.Spec = t.parse(spec)
}
@ -252,6 +265,7 @@ func (t *Task) parseSpec(spec string) *Schedule {
return nil
}
// set schedule to next time
func (s *Schedule) Next(t time.Time) time.Time {
// Start at the earliest possible time (the upcoming second).
@ -349,6 +363,7 @@ func dayMatches(s *Schedule, t time.Time) bool {
return domMatch || dowMatch
}
// start all tasks
func StartTask() {
go run()
}
@ -388,20 +403,23 @@ func run() {
}
}
// start all tasks
func StopTask() {
stop <- true
}
// add task with name
func AddTask(taskname string, t Tasker) {
AdminTaskList[taskname] = t
}
//sort map for tasker
// sort map for tasker
type MapSorter struct {
Keys []string
Vals []Tasker
}
// create new tasker map
func NewMapSorter(m map[string]Tasker) *MapSorter {
ms := &MapSorter{
Keys: make([]string, 0, len(m)),
@ -414,6 +432,7 @@ func NewMapSorter(m map[string]Tasker) *MapSorter {
return ms
}
// sort tasker map
func (ms *MapSorter) Sort() {
sort.Sort(ms)
}