c# - 如何正确关闭或销毁TCP客户端？

Question

当客户端断开连接时，我在服务器上有以下代码:

更新内部，每帧运行:

foreach (ClientEntity client in connectedClients) {

        if (!isClientStillConnected(client.tcpClient)) {

            disconnectedClients.Add(client);
            client.tcpClient.Close();
            Debug.Log (" :: Client " + client.tcpClientName + " has disconnected! ::");
            continue;

        } else {

            Do_The_Stuff_And_Things();

            }

        }

    }

现在，当我在那之后尝试调试时，仍然在 Update() 中:

for (int i = 0; i < disconnectedClients.Count; i++) {

        Debug.Log(":: Disconnected clients count: " + disconnectedClients.Count.ToString());
        Debug.Log(":: Disconnected client at index " + i + ": " + disconnectedClients[i]);

    }

这部分是从 disconnectedClients 列表中删除断开连接的客户端，但是当我运行它并退出客户端时，这是 Unity 在控制台中抛出的内容，只是一个片段:

它还在继续。所以一个 - for 循环 不会停止，这意味着客户端会不断添加到列表中，对吗？现在出了什么问题，如何正确删除(关闭)客户端？

在客户端我运行:

        nwReader.Close ();
        nwWriter.Close ();
        tcpClient.Close ();
        socketReady = false;

仅供引用，类 ClientEntity:

public class ClientEntity {

  public TcpClient tcpClient;
  public string tcpClientName;

  public ClientEntity(TcpClient tcpClientSocket){

      tcpClientName = "Guest";
      tcpClient = tcpClientSocket;

  }
}

Answer 1

TcpClient.Close 方法在您的情况下工作正常。但是，您没有在客户端断开连接后从 connectedClients 列表/数组中删除客户端，这导致 if !isClientStillConnected(client.tcpClient)) 语句再次评估为 true .像这样更改您的代码:

//This loop is unchanged
foreach (ClientEntity client in connectedClients)
{
    if (!isClientStillConnected(client.tcpClient)) {

        disconnectedClients.Add(client);
        client.tcpClient.Close();
        Debug.Log (" :: Client " + client.tcpClientName + " has disconnected! ::");
        continue;

    } else {

        Do_The_Stuff_And_Things();

        }

    }

}

//Remove all disconnected clients from the list of connected clients
foreach (var disconnectedClient in disconnectedClients)
{
    connectedClients.Remove(disconnectedClient);
}