fix: 修复 server 包 RegMessageExecBeforeEvent 函数导致内存泄露的问题

server/conn.go

@@ -4,11 +4,9 @@ import (
 	"context"
 	"github.com/gorilla/websocket"
 	"github.com/kercylan98/minotaur/utils/concurrent"
-	"github.com/kercylan98/minotaur/utils/log"
 	"github.com/panjf2000/gnet"
 	"github.com/xtaci/kcp-go/v5"
 	"net"
-	"runtime/debug"
 	"strings"
 	"sync"
 )
@@ -278,8 +276,9 @@ func (slf *Conn) writeLoop(wait *sync.WaitGroup) {
 	defer func() {
 		if err := recover(); err != nil {
 			slf.Close()
-			log.Error("WriteLoop", log.Any("Error", err))
-			debug.PrintStack()
+			// TODO: 以下代码是否需要？
+			// log.Error("WriteLoop", log.Any("Error", err))
+			// debug.PrintStack()
 		}
 	}()
 	wait.Done()

server/server.go

@@ -551,13 +551,10 @@ func (slf *Server) ShuntChannelFreed(channelGuid int64) {
 
 // pushMessage 向服务器中写入特定类型的消息，需严格遵守消息属性要求
 func (slf *Server) pushMessage(message *Message) {
-	if slf.messagePool.IsClose() {
+	if slf.messagePool.IsClose() || slf.isShutdown.Load() || !slf.OnMessageExecBeforeEvent(message) {
 		slf.messagePool.Release(message)
 		return
 	}
-	if slf.isShutdown.Load() || !slf.OnMessageExecBeforeEvent(message) {
-		return
-	}
 	if slf.shuntChannels != nil && message.t == MessageTypePacket {
 		conn := message.attrs[0].(*Conn)
 		channelGuid, allowToCreate := slf.shuntMatcher(conn)