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| package main
import ( "errors" "fmt" "time" )
const cicleSectionNum = 10
type TaskFunc func(args ...any)
type Task struct { runTime time.Time cycleNum int curIndex int exec TaskFunc params []any }
type DelayMessage struct { cycleNum int curIndex int slots [cicleSectionNum]map[string]*Task closed chan bool taskClose chan bool timeClose chan bool startTime time.Time }
func NewDelayMessage() *DelayMessage { dm := &DelayMessage{ cycleNum: 0, curIndex: 0, closed: make(chan bool), taskClose: make(chan bool), timeClose: make(chan bool), startTime: time.Now(), } for i := 0; i < cicleSectionNum; i++ { dm.slots[i] = make(map[string]*Task) } return dm }
func (dm *DelayMessage) Start() { go dm.taskLoop() go dm.timeLoop() select { case <-dm.closed: dm.taskClose <- true dm.timeClose <- true break } }
func (dm *DelayMessage) Stop() { dm.closed <- true }
func (dm *DelayMessage) taskLoop() { defer func() { fmt.Println("任务遍历结束!") }() for { select { case <-dm.taskClose: return default: { tasks := dm.slots[dm.curIndex] if len(tasks) > 0 { for k, v := range tasks { if v.cycleNum == dm.cycleNum { go v.exec(v.params...) delete(tasks, k) } } } } }
} }
func (dm *DelayMessage) timeLoop() { defer func() { fmt.Println("时间遍历结束!") }() tick := time.NewTicker(time.Second) for { select { case <-dm.timeClose: return case <-tick.C: fmt.Println(time.Now().Format(time.DateTime)) dm.curIndex = (dm.curIndex + 1) % cicleSectionNum if dm.curIndex == 0 { dm.cycleNum += 1 } fmt.Println("当前循环时间", dm.cycleNum, dm.curIndex) } }
}
func (dm *DelayMessage) AddTask(t time.Time, key string, exec TaskFunc, params []any) error { if dm.startTime.After(t) { return errors.New("时间错误") } subSecond := t.Unix() - dm.startTime.Unix() cycleNum := int(subSecond / cicleSectionNum) ix := subSecond % cicleSectionNum tasks := dm.slots[ix] if _, ok := tasks[key]; ok { return errors.New("该slots中已存在key为" + key + "的任务") } tasks[key] = &Task{ runTime: t, cycleNum: cycleNum, curIndex: int(ix), exec: exec, params: params, } return nil }
func main() { fmt.Println("abc") dm := NewDelayMessage() dm.AddTask(time.Now().Add(time.Second*3), "test1", func(args ...any) { fmt.Println(args...) }, []any{1, 2, 3})
dm.AddTask(time.Now().Add(time.Second*3), "test1", func(args ...any) { fmt.Println(args...) }, []any{2, 2, 3})
dm.AddTask(time.Now().Add(time.Second*3), "test2", func(args ...any) { fmt.Println(args...) }, []any{3, 2, 3})
dm.AddTask(time.Now().Add(time.Second*11), "test11", func(args ...any) { fmt.Println(args...) }, []any{11, 2, 3})
dm.AddTask(time.Now().Add(time.Second*12), "test11", func(args ...any) { fmt.Println(args...) }, []any{11, 2, 3})
time.AfterFunc(time.Second*40, func() { dm.Stop() }) dm.Start() }
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