update singleton

README-CN.md

@@ -73,18 +73,14 @@ func main() {
 
 ### 使用全局的EventBus单例对象
 
-为了更方便的使用EventBus, 这里有一个全局的EventBus单例对象，使用`eventbus.InitSingleton() `初始化这个单例对象，这个对象内部的channel是无缓冲的，直接使用`eventbus.Subscribe()`,`eventbus.Publish()`,`eventbus.Unsubscribe()`，将会调用该单例对象对应的方法。
+为了更方便的使用EventBus, 这里有一个全局的EventBus单例对象，这个对象内部的channel是无缓冲的，直接使用`eventbus.Subscribe()`,`eventbus.Publish()`,`eventbus.Unsubscribe()`，将会调用该单例对象对应的方法。
 
 ```go
 func handler(topic string, payload int) {
 	fmt.Printf("topic:%s, payload:%d\n", topic, payload)
 }
 
 func main() {
-
-	// 初始化单例对象
-	eventbus.InitSingleton()
-
 	// eventbus.Subscribe() 将调用全局单例singleton.Subscribe()方法
 	eventbus.Subscribe("testtopic", handler)
 

README.md

@@ -79,18 +79,14 @@ func main() {
 ```
 
 ### Using the global singleton object of EventBus
-To make it more convenient to use EventBus, there is a global singleton object for EventBus. You can initialize this singleton object by calling `eventbus.InitSingleton()`. The internal channel of this object is unbuffered, and you can directly use `eventbus.Subscribe()`, `eventbus.Publish()`, and `eventbus.Unsubscribe()` to call the corresponding methods of the singleton object.
+To make it more convenient to use EventBus, there is a global singleton object for EventBus. The internal channel of this object is unbuffered, and you can directly use `eventbus.Subscribe()`, `eventbus.Publish()`, and `eventbus.Unsubscribe()` to call the corresponding methods of the singleton object.
 
 ```go
 func handler(topic string, payload int) {
 	fmt.Printf("topic:%s, payload:%d\n", topic, payload)
 }
 
 func main() {
-
-	// Initialize the singleton object
-	eventbus.InitSingleton()
-
 	// eventbus.Subscribe() will call the global singleton's Subscribe() method
 	eventbus.Subscribe("testtopic", handler)
 

singleton.go

@@ -6,7 +6,7 @@ var (
 )
 
 // InitSingleton initializes the singleton instance of EventBus, which will be created only when necessary.
-func InitSingleton() {
+func init() {
 	if singleton == nil {
 
 		// If singleton is nil, we create a new instance of EventBus using the New()

singleton_test.go

@@ -8,8 +8,10 @@ import (
 )
 
 func recreateSingleton() {
-	singleton = nil
-	InitSingleton()
+	if singleton != nil {
+		singleton.Close()
+	}
+	singleton = New()
 }
 
 func Test_InitSingleton(t *testing.T) {