配置变更的时候自动同步，不再需要手工点击同步

internal/events/events.go

@@ -0,0 +1,8 @@
+package events
+
+type Event = string
+
+const (
+	EventStart Event = "start" // start loading
+	EventQuit  Event = "quit"  // quit node gracefully
+)

internal/events/utils.go

@@ -0,0 +1,27 @@
+package events
+
+import "sync"
+
+var eventsMap = map[string][]func(){} // event => []callbacks
+var locker = sync.Mutex{}
+
+// 增加事件回调
+func On(event string, callback func()) {
+	locker.Lock()
+	defer locker.Unlock()
+
+	callbacks, _ := eventsMap[event]
+	callbacks = append(callbacks, callback)
+	eventsMap[event] = callbacks
+}
+
+// 通知事件
+func Notify(event string) {
+	locker.Lock()
+	callbacks, _ := eventsMap[event]
+	locker.Unlock()
+	
+	for _, callback := range callbacks {
+		callback()
+	}
+}

internal/events/utils_test.go

@@ -0,0 +1,16 @@
+package events
+
+import "testing"
+
+func TestOn(t *testing.T) {
+	On("hello", func() {
+		t.Log("world")
+	})
+	On("hello", func() {
+		t.Log("world2")
+	})
+	On("hello2", func() {
+		t.Log("world2")
+	})
+	Notify("hello")
+}