I have an TCP Listener (server) and a TCP Client (client) (in 2 different programs).
If my client is forcely stopped (CTRL^C or other) the server program is stopped with this error :
Unhandled Exception:System.IO.IOException: Unable to read data from the transport connection: Connection reset by peer. ---> System.Net.Sockets.SocketException: Connection reset by peer at System.Net.Sockets.Socket.Receive (System.Byte[] buffer, System.Int32 offset, System.Int32 size, System.Net.Sockets.SocketFlags socketFlags) [0x0001a] in <a9a08e39ba304bd0a84c49bd158dfc02>:0 at System.Net.Sockets.NetworkStream.Read (System.Byte[] buffer, System.Int32 offset, System.Int32 size) [0x000b4] in <a9a08e39ba304bd0a84c49bd158dfc02>:0 --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read (System.Byte[] buffer, System.Int32 offset, System.Int32 size) [0x0010f] in <a9a08e39ba304bd0a84c49bd158dfc02>:0 at loginserver.Program.ThreadProc (System.Object obj) [0x00090] in <a4c14a5640d24e26ae5e0c9bc660a224>:0 at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context (System.Object state) [0x0000e] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x0008d] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x0002a] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00096] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x00000] in <d0e12f672b88444ab4b6d9b2ecf20142>:0[ERROR] FATAL UNHANDLED EXCEPTION: System.IO.IOException: Unable to read data from the transport connection: Connection reset by peer. ---> System.Net.Sockets.SocketException: Connection reset by peer at System.Net.Sockets.Socket.Receive (System.Byte[] buffer, System.Int32 offset, System.Int32 size, System.Net.Sockets.SocketFlags socketFlags) [0x0001a] in <a9a08e39ba304bd0a84c49bd158dfc02>:0 at System.Net.Sockets.NetworkStream.Read (System.Byte[] buffer, System.Int32 offset, System.Int32 size) [0x000b4] in <a9a08e39ba304bd0a84c49bd158dfc02>:0 --- End of inner exception stack trace --- at System.Net.Sockets.NetworkStream.Read (System.Byte[] buffer, System.Int32 offset, System.Int32 size) [0x0010f] in <a9a08e39ba304bd0a84c49bd158dfc02>:0 at loginserver.Program.ThreadProc (System.Object obj) [0x00090] in <a4c14a5640d24e26ae5e0c9bc660a224>:0 at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context (System.Object state) [0x0000e] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.ExecutionContext.RunInternal (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x0008d] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.ExecutionContext.Run (System.Threading.ExecutionContext executionContext, System.Threading.ContextCallback callback, System.Object state, System.Boolean preserveSyncCtx) [0x00000] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem () [0x0002a] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00096] in <d0e12f672b88444ab4b6d9b2ecf20142>:0 at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback () [0x00000] in <d0e12f672b88444ab4b6d9b2ecf20142>:0What can i do to cancel this crash. I want to make a server to manage my network, and if a computer is forcely deconnected, i don't want to a crash from the server.
My code :
Server -
class Program { TcpListener server = null; static void Main(string[] args) { TcpListener server = null; try { string ports = args[1]; Int32 port = Int32.Parse(ports); IPAddress localAddr = IPAddress.Parse(args[0]); server = new TcpListener(localAddr, port); server.Start(); TcpClient client; while (true) { client = server.AcceptTcpClient(); ThreadPool.QueueUserWorkItem(ThreadProc, client); } } catch (SocketException e) { Console.WriteLine("SocketException: {0}", e); } Console.WriteLine("\nHit enter to continue..."); Console.Read(); } private static void ThreadProc(object obj) { var client = (TcpClient)obj; Byte[] bytes = new Byte[256]; String data = null; while (true) { Console.WriteLine("Waiting for a connection... "); var networkStream = client.GetStream(); var pi = networkStream.GetType().GetProperty("Socket", BindingFlags.NonPublic | BindingFlags.Instance); var socketIp = ((Socket)pi.GetValue(networkStream, null)).RemoteEndPoint.ToString(); Console.WriteLine("Connected -> " + socketIp); data = null; NetworkStream stream = client.GetStream(); int i; while ((i = stream.Read(bytes, 0, bytes.Length)) != 0) { data = System.Text.Encoding.ASCII.GetString(bytes, 0, i); Console.WriteLine("Received: {0}", data ); } client.Close(); } } }Client -
class Program { static void Main(string[] args) { while (true) { string IP = "localhost"; int port = 13000; TcpClient client = new TcpClient(); try { client.Connect(IP, port); } catch (Exception ex) { Console.WriteLine("Error : " + ex.Message); } if (client.Connected) { NetworkStream stream = client.GetStream(); Console.WriteLine("Connected !"); string tosend = "Hey" !; Console.WriteLine("Send: " + tosend); Byte[] data = System.Text.Encoding.ASCII.GetBytes(tosend); stream.Write(data, 0, data.Length); while (client.Connected) { Thread.Sleep(1000); } stream.Close(); client.Close(); Thread.Sleep(10000); } } } }