是否应该始终检查客户端是否成功接收到服务器发送的数据？ （套接字编程）

Question

我正在尝试实现将请求的文件发送到客户端的文件服务器。 我使用TCP协议实现了服务器和客户端的发送和接收部分。

我的服务器发送从数据包队列中出队的数据包，直到数据包队列为空，并且我的客户端接收，直到接收到的数据包编号与所需的数据包编号相同为止。

我使用了.Net框架中的SendAsync（）和ReceiveAsync（）方法。

我的程序在调试时似乎没有问题，但实际上， 客户端似乎错过了一些从服务器发送的数据包。即使服务器发送了数据包，由于某种原因，客户端也无法接收到某些数据包。我不知道这怎么发生。

TCP协议不能确保接收服务器发送的每个数据包吗？ 您有任何线索为什么会这样吗？

这是我的代码。 Receive_completed是ReceiveAsync（）的回调方法，该方法在之后 ReceuveAsync已完成 并且Process_receive函数始终从ReceiveAsync（）读取每个接收到的字节，如果已完成读取数据包，则返回true（否则，返回false，并且将再次调用Receive（）方法）

和..忽略OperationCompleted和_receivedProperly ..

internal void Receive()//method for receiving the call
    {
        if (_operationState)
        {
            try
            {
                bool pending =_user.ClientSocket.ReceiveAsync(_receiveArg); // This will spawn a new thread and call Receive_completed as callback method
                if (pending == false)
                {
                    _receivePendingThread = new Thread(CallReceiveCompleted); //Start New thread
                    _receivePendingThread.Start();
                }
            }
            catch (Exception exception)
            {
                ExceptionHandler(exception, CommunicatorError.ObjectDisposed);
            }
        }
    }


    private void Receive_completed(object sender, SocketAsyncEventArgs e)
    {
        if (e.LastOperation == SocketAsyncOperation.Receive)
        {
            bool transferCompleted = false;
            try
            {
                if (e.BytesTransferred == 0)
                {
                    throw new Exception("Socket Closed");
                }
                if (e.SocketError != SocketError.Success)
                {
                    throw new Exception("Socket Error Occured");
                }
            }
            catch (Exception exception)
            {
                ExceptionHandler(exception, CommunicatorError.SocketError);
                return;
            } //Checks for received bytes

            //call process_receive here
            transferCompleted = Process_receive(); //returns if more packets are left or not (This method Gurantees reading all received bytes from ReceiveAsync()


            if (_receivedProperly&& _operationState) //Succeded process
            {           
                if (transferCompleted && _operationState) Receive();//Receive if more bytes are left
                else if (_operationState)
                {// No more packets to be accepted additionally
                    CallReceiveCompleted();// Start Callback method
                }
            }

        }
    }