init

common.libs/extends/SocketExtends.cs

@@ -0,0 +1,77 @@
+using System;
+using System.Net;
+using System.Net.Sockets;
+using System.Runtime.InteropServices;
+
+namespace common.libs.extends
+{
+    public static class SocketExtends
+    {
+        public static void WindowsUdpBug(this Socket socket)
+        {
+            if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
+            {
+                try
+                {
+                    const uint IOC_IN = 0x80000000;
+                    int IOC_VENDOR = 0x18000000;
+                    int SIO_UDP_CONNRESET = (int)(IOC_IN | IOC_VENDOR | 12);
+                    socket.IOControl((int)SIO_UDP_CONNRESET, new byte[] { Convert.ToByte(false) }, null);
+                }
+                catch (Exception)
+                {
+                }
+            }
+        }
+        public static void IPv6Only(this Socket socket, AddressFamily family, bool val)
+        {
+            if (NetworkHelper.IPv6Support && family == AddressFamily.InterNetworkV6)
+            {
+                try
+                {
+                    socket.SetSocketOption(SocketOptionLevel.IPv6, SocketOptionName.IPv6Only, val);
+                }
+                catch (Exception)
+                {
+                }
+            }
+        }
+        public static void SafeClose(this Socket socket)
+        {
+            if (socket != null)
+            {
+                try
+                {
+                    socket.Shutdown(SocketShutdown.Both);
+                    //调试注释
+                    socket.Disconnect(false);
+                }
+                catch (Exception)
+                {
+                }
+                finally
+                {
+                    socket.Close();
+                }
+            }
+        }
+
+        public static void Reuse(this Socket socket, bool reuse = true)
+        {
+            socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, reuse);
+        }
+        public static void ReuseBind(this Socket socket, IPEndPoint ip)
+        {
+            socket.Reuse(true);
+            socket.Bind(ip);
+        }
+
+        public static void KeepAlive(this Socket socket, int time = 60, int interval = 5, int retryCount = 5)
+        {
+            socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.KeepAlive, true);
+            socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.TcpKeepAliveInterval, interval);
+            //socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.TcpKeepAliveRetryCount, retryCount);
+            socket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.TcpKeepAliveTime, time);
+        }
+    }
+}