style: 优化 server 包部分代码可读性

server/network.go

@@ -41,6 +41,17 @@ var (
 	networks       = []Network{
 		NetworkNone, NetworkTcp, NetworkTcp4, NetworkTcp6, NetworkUdp, NetworkUdp4, NetworkUdp6, NetworkUnix, NetworkHttp, NetworkWebsocket, NetworkKcp, NetworkGRPC,
 	}
+	socketNetworks = map[Network]struct{}{
+		NetworkTcp:       {},
+		NetworkTcp4:      {},
+		NetworkTcp6:      {},
+		NetworkUdp:       {},
+		NetworkUdp4:      {},
+		NetworkUdp6:      {},
+		NetworkUnix:      {},
+		NetworkKcp:       {},
+		NetworkWebsocket: {},
+	}
 )
 
 func init() {
@@ -305,3 +316,8 @@ func (n Network) websocketMode(state chan<- error, srv *Server) {
 		}
 	}((&listener{srv: srv, Listener: l, state: state}).init())
 }
+
+// IsSocket 返回当前服务器的网络模式是否为 Socket 模式
+func (n Network) IsSocket() bool {
+	return collection.KeyInMap(socketNetworks, n)
+}

server/server.go

@@ -149,9 +149,7 @@ func (srv *Server) Run(addr string) (err error) {
 
 // IsSocket 是否是 Socket 模式
 func (srv *Server) IsSocket() bool {
-	return srv.network == NetworkTcp || srv.network == NetworkTcp4 || srv.network == NetworkTcp6 ||
+	return srv.network.IsSocket()
-		srv.network == NetworkUdp || srv.network == NetworkUdp4 || srv.network == NetworkUdp6 ||
-		srv.network == NetworkUnix || srv.network == NetworkKcp || srv.network == NetworkWebsocket
 }
 
 // RunNone 是 Run("") 的简写，仅适用于运行 NetworkNone 服务器

server/service.go

@@ -14,8 +14,8 @@ type Service interface {
 
 // BindService 绑定服务到特定 Server，被绑定的服务将会在 Server 初始化时执行 Service.OnInit 方法
 func BindService(srv *Server, services ...Service) {
-	for _, service := range services {
+	for i := 0; i < len(services); i++ {
-		service := service
+		service := services[i]
 		srv.services = append(srv.services, func() {
 			name := reflect.TypeOf(service).String()
 			defer func(name string) {