Как сделать так, чтобы ожидание сигнала с сервера длилось бесконечно? c#

IPAddress serverAddress = IPAddress.Parse("192.168.1.66");
const int serverPort = 7777;
string filename = "test.txt";

using var client = new TcpClient(serverAddress.ToString(), serverPort);
using var stream = client.GetStream();

byte[] buf = new byte[65536];
await ReadBytes(sizeof(long));
long remainingLength = IPAddress.NetworkToHostOrder(BitConverter.ToInt64(buf, 0));

using var file = File.Create(filename);
while (remainingLength > 0)
{
int lengthToRead = (int)Math.Min(remainingLength, buf.Length);
await ReadBytes(lengthToRead);
await file.WriteAsync(buf, 0, lengthToRead);
remainingLength -= lengthToRead;
}

async Task ReadBytes(int howmuch)
{
int readPos = 0;
while (readPos < howmuch)
{
var actuallyRead = await stream.ReadAsync(buf, readPos, howmuch - readPos);
if (actuallyRead == 0)
throw new EndOfStreamException();
readPos += actuallyRead;
}
}

CSHARP

IPAddress serverAddress = IPAddress.Parse("192.168.1.66");

const int serverPort = 7777;

string filename = "test.txt";



using var client = new TcpClient(serverAddress.ToString(), serverPort);

using var stream = client.GetStream();



byte[] buf = new byte[65536];

await ReadBytes(sizeof(long));

long remainingLength = IPAddress.NetworkToHostOrder(BitConverter.ToInt64(buf, 0));



using var file = File.Create(filename);

while (remainingLength > 0)

{

    int lengthToRead = (int)Math.Min(remainingLength, buf.Length);

    await ReadBytes(lengthToRead);

    await file.WriteAsync(buf, 0, lengthToRead);

    remainingLength -= lengthToRead;

}



async Task ReadBytes(int howmuch)

{

    int readPos = 0;

    while (readPos < howmuch)

    {

        var actuallyRead = await stream.ReadAsync(buf, readPos, howmuch - readPos);

        if (actuallyRead == 0)

            throw new EndOfStreamException();

        readPos += actuallyRead;

    }

}

Как сделать так, чтобы ожидание сигнала с сервера длилось бесконечно?