从Serein.Library分离了WebSocket/Modbus；新增了Json门户类，用于未来的Http、WebSocket、Mqtt、gRPC、QUIC扩展。

Serein.Proto.WebSocket/TestExtension.cs

@@ -0,0 +1,93 @@
+using Serein.Library.Utils;
+using System;
+using System.Collections.Concurrent;
+using System.Collections.Generic;
+using System.Linq;
+using System.Net.WebSockets;
+using System.Text;
+using System.Threading;
+using System.Threading.Channels;
+using System.Threading.Tasks;
+
+namespace Serein.Proto.WebSocket
+{
+    /// <summary>
+    /// 消息处理工具
+    /// </summary>
+    public class MsgHandleUtil
+    {
+        private readonly Channel<string> _msgChannel;
+
+        /// <summary>
+        /// 初始化优先容器
+        /// </summary>
+        /// <param name="capacity"></param>
+        public MsgHandleUtil(int capacity = 100)
+        {
+            _msgChannel = Channel.CreateBounded<string>(new BoundedChannelOptions(capacity)
+            {
+                FullMode = BoundedChannelFullMode.Wait
+            });
+        }
+    
+
+        /// <summary>
+        /// 等待消息
+        /// </summary>
+        /// <returns></returns>
+        public async Task<string> WaitMsgAsync()
+        {
+            // 检查是否可以读取消息
+            if (await _msgChannel.Reader.WaitToReadAsync())
+            {
+                return await _msgChannel.Reader.ReadAsync();
+            }
+            return null; // 若通道关闭，则返回null
+        }
+
+        /// <summary>
+        /// 写入消息
+        /// </summary>
+        /// <param name="msg">消息内容</param>
+        /// <returns>是否写入成功</returns>
+        public async Task<bool> WriteMsgAsync(string msg)
+        {
+            try
+            {
+                await _msgChannel.Writer.WriteAsync(msg);
+                return true;
+            }
+            catch (ChannelClosedException)
+            {
+                // Channel 已关闭
+                return false;
+            }
+        }
+
+        /// <summary>
+        /// 尝试关闭通道，停止写入消息
+        /// </summary>
+        public void CloseChannel()
+        {
+            _msgChannel.Writer.Complete();
+        }
+    }
+
+
+
+
+    public class SocketExtension
+    {
+        /// <summary>
+        /// 发送消息
+        /// </summary>
+        /// <param name="webSocket"></param>
+        /// <param name="message"></param>
+        /// <returns></returns>
+        public static async Task SendAsync(System.Net.WebSockets.WebSocket webSocket, string message)
+        {
+            var buffer = Encoding.UTF8.GetBytes(message);
+            await webSocket.SendAsync(new ArraySegment<byte>(buffer), WebSocketMessageType.Text, true, CancellationToken.None);
+        }
+    }
+}