private static void ReceiveCallback(IAsyncResult ar) { try { // Retrieve the state object and the client socket // from the asynchronous state object. StateObject state = (StateObject)ar.AsyncState; Socket client = state.workSocket; // Read data from the client socket. int bytesRead = client.EndReceive(ar); if (bytesRead > 0) { // There might be more data, so store the data received so far. state.sb.Append(Encoding.ASCII.GetString( state.buffer, 0, bytesRead)); // Check for end-of-file tag. If it is not there, read // more data. var content = state.sb.ToString(); if (content.IndexOf("<EOF>") > -1) { // All the data has been read from the // client. Display it on the console. Console.WriteLine("Read {0} bytes from socket. \n Data : {1}", content.Length, content); if (content.Contains("rot")) { robot.Start(); } receiveDone.Set(); state.Clear(); } else { // Not all data received. Get more. client.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReceiveCallback), state); } } } catch (Exception e) { Console.WriteLine(e.ToString()); } }
public static void ReadCallback(IAsyncResult ar) { String content = String.Empty; // Retrieve the state object and the handler socket // from the asynchronous state object. StateObject state = (StateObject)ar.AsyncState; Socket handler = state.workSocket; // Read data from the client socket. int bytesRead = handler.EndReceive(ar); if (bytesRead > 0) { // There might be more data, so store the data received so far. state.sb.Append(Encoding.ASCII.GetString( state.buffer, 0, bytesRead)); // Check for end-of-file tag. If it is not there, read // more data. content = state.sb.ToString(); if (content.IndexOf("<EOF>") > -1) { // All the data has been read from the // client. Display it on the console. Console.WriteLine("Read {0} bytes from socket. \n Data : {1}", content.Length, content); // Echo the data back to the client. foreach (var item in stateObjectList) { var socket = item.workSocket; Send(socket, content); } state.Clear(); } // Not all data received. Get more. handler.BeginReceive(state.buffer, 0, StateObject.BufferSize, 0, new AsyncCallback(ReadCallback), state); } }