diff --git a/task.go b/task.go
new file mode 100644
index 0000000..75789cd
--- /dev/null
+++ b/task.go
@@ -0,0 +1,36 @@
+package f5
+
+type Task struct {
+	status int32
+}
+
+func (this *Task) IsRunning() bool {
+	return this.status == 0
+}
+
+func (this *Task) IsSucc() bool {
+	return this.status > 0
+}
+
+func (this *Task) IsFail() bool {
+	return this.status < 0
+}
+
+func (this *Task) SetSucc() {
+	this.status = 1
+}
+
+func (this *Task) SetFail() {
+	this.status = -1
+}
+
+func (this *Task) run(cb func(*Task)) *Task {
+	for this.IsRunning() {
+		cb(this)
+	}
+	return this
+}
+
+func NewTask(cb func(*Task)) *Task {
+	return new(Task).run(cb)
+}