1

async_task.go

@@ -14,6 +14,8 @@ type AsyncTask struct {
 	cb func(*AsyncTask)
 	succCb func(*AsyncTask)
 	failCb func(*AsyncTask)
+	exitCb func(*AsyncTask)
+	preExecTimes int64
 	execTimes int64
 	lockKeys map[string]*taskLock
 }
@@ -46,9 +48,13 @@ func (this *AsyncTask) SetSucc() {
 		panic("task is not runing")
 	}
 	this.status = 1
+	this.ClearLocks()
 	if this.succCb != nil {
 		this.succCb(this)
 	}
+	if this.exitCb != nil {
+		this.exitCb(this)
+	}
 }
 
 func (this *AsyncTask) SetFail() {
@@ -56,15 +62,22 @@ func (this *AsyncTask) SetFail() {
 		panic("task is not runing")
 	}
 	this.status = -1
+	this.ClearLocks()
 	if this.failCb != nil {
 		this.failCb(this)
 	}
+	if this.exitCb != nil {
+		this.exitCb(this)
+	}
 }
 
 func (this *AsyncTask) Continue() *AsyncTask {
 	if !this.IsRunning() {
 		panic("task is not runing")
 	}
+	if len(this.lockKeys) > 0 {
+		panic("lockTask not support continue")
+	}
 	GetApp().RegisterMainThreadCb(
 		func () {
 			this.cb(this)
@@ -78,27 +91,39 @@ func (this *AsyncTask) checkDo() *AsyncTask {
 		panic("task is not runing")
 	}
 	if this.allIsReady() {
-		GetApp().RegisterMainThreadCb(
-			func () {
-				this.cb(this)
-				this.execTimes += 1
-			})
+		if this.preExecTimes <= 0 {
+			this.preExecTimes++
+			if this.preExecTimes > 1 {
+				panic("locktask preExectimes > 0")
+			}
+			GetApp().RegisterMainThreadCb(
+				func () {
+					this.cb(this)
+					if this.execTimes > 0 {
+						panic("locktask only run once")
+					}
+					this.execTimes += 1
+				})
+		}
 	}
 	return this
 }
 
 func (this *AsyncTask) OnSucc(cb func(*AsyncTask)) *AsyncTask {
-	this.ClearLocks()
 	this.succCb = cb
 	return this
 }
 
 func (this *AsyncTask) OnFail(cb func(*AsyncTask)) *AsyncTask {
-	this.ClearLocks()
 	this.failCb = cb
 	return this
 }
 
+func (this *AsyncTask) OnExit(cb func(*AsyncTask)) *AsyncTask {
+	this.exitCb = cb
+	return this
+}
+
 func (this *AsyncTask) allIsReady() bool {
 	var allReady = true
 	for _, lock := range(this.lockKeys) {