2014-08-01 update 1

NA200H/ModBus.Net/TCPProtocalLinker.cs

@@ -1,25 +1,57 @@
-namespace ModBus.Net
-{
-    public class TCPProtocalLinker : ProtocalLinker
-    {
-        private static TCPSocket _socket;
+using System;
+using System.Linq;
 
-        public TCPProtocalLinker()
+namespace ModBus.Net
+{
+    public class TcpProtocalLinker : ProtocalLinker
+    {
+        private static TcpSocket _socket;
+
+        public TcpProtocalLinker()
         {
             if (_socket == null)
             {
-                _socket = new TCPSocket(ConfigurationManager.IP, int.Parse(ConfigurationManager.Port), false);
+                _socket = new TcpSocket(ConfigurationManager.IP, int.Parse(ConfigurationManager.Port), false);
             }
         }
 
         public override byte[] SendReceive(byte[] content)
         {
-            return _socket.SendMsg(content);
+            return BytesDecact(_socket.SendMsg(BytesExtend(content)));
         }
 
         public override bool SendOnly(byte[] content)
         {
-            return _socket.SendMsgWithoutReturn(content);
+            return _socket.SendMsgWithoutReturn(BytesExtend(content));
+        }
+
+    }
+
+    public abstract class ProtocalLinkerBytesExtend
+    {
+        public abstract byte[] BytesExtend(byte[] content);
+
+        public abstract byte[] BytesDecact(byte[] content);
+    }
+
+    public class TcpProtocalLinkerBytesExtend : ProtocalLinkerBytesExtend
+    {
+        public override byte[] BytesExtend(byte[] content)
+        {
+            byte[] newFormat = new byte[6 + content.Length];
+            int tag = 0;
+            ushort leng = (ushort)content.Length;
+            Array.Copy(ValueHelper.Instance.GetBytes(tag), 0, newFormat, 0, 4);
+            Array.Copy(ValueHelper.Instance.GetBytes(leng), 0, newFormat, 4, 2);
+            Array.Copy(content, 0, newFormat, 6, content.Length);
+            return newFormat;
+        }
+
+        public override byte[] BytesDecact(byte[] content)
+        {
+            byte[] newContent = new byte[content.Length - 6];
+            Array.Copy(content, 6, newContent, 0, newContent.Length);
+            return newContent;
         }
     }
 }