如何寫可擴充的基於TCP/IP 的伺服器
簡介
簡介可擴展的TCP/IP 伺服器涉及最佳化其架構以處理大量並發連接,同時保持效能和可靠性。這需要仔細考慮網路架構、執行緒管理和資料流。
連線池:實作一種機制來池化和重複使用。這減少了建立新連線所需的時間和資源,特別是對於長時間運行的連線。
訊息重組:實作一種機制來重組從客戶端收到的碎片訊息。這保證了資料傳輸的完整性。
using System; using System.Net; using System.Net.Sockets; using System.Threading; using System.Threading.Tasks; public class ScalableTcpServer { private Socket _serverSocket; private List<Socket> _sockets; public void Start(IPAddress ipAddress, int port) { _serverSocket = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp); _sockets = new List<Socket>(); _serverSocket.Bind(new IPEndPoint(ipAddress, port)); _serverSocket.Listen(100); // Accept incoming connections asynchronously _serverSocket.BeginAccept(AcceptCallback, null); } private void AcceptCallback(IAsyncResult result) { try { Socket socket = _serverSocket.EndAccept(result); _sockets.Add(socket); // Handle data from the client asynchronously socket.BeginReceive(new byte[_bufferSize], 0, _bufferSize, SocketFlags.None, DataReceivedCallback, socket); // Accept the next incoming connection _serverSocket.BeginAccept(AcceptCallback, null); } catch (Exception ex) { // Handle exception } } private void DataReceivedCallback(IAsyncResult result) { Socket socket = (Socket)result.AsyncState; try { int bytesRead = socket.EndReceive(result); if (bytesRead > 0) { // Process received data } else { // Handle client disconnection RemoveSocket(socket); } // Register for the next data reception socket.BeginReceive(new byte[_bufferSize], 0, _bufferSize, SocketFlags.None, DataReceivedCallback, socket); } catch (Exception ex) { // Handle exception } } private void RemoveSocket(Socket socket) { lock (_sockets) { _sockets.Remove(socket); } } }
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