public void TestDataReading()
{
var data = new List<byte>();
data.Add(byte.MaxValue);
data.AddRange(BitConverter.GetBytes(short.MaxValue));
data.AddRange(BitConverter.GetBytes(int.MaxValue));
data.AddRange(BitConverter.GetBytes(float.MaxValue));
data.AddRange(BitConverter.GetBytes(ulong.MaxValue));
data.AddRange(Encoding.UTF8.GetBytes("test string"));
data.Add(0x00); // String terminate
var reader = new PacketReader(data.ToArray());
Assert.That(reader.ReadByte(), Is.EqualTo(byte.MaxValue));
Assert.That(reader.ReadShort(), Is.EqualTo(short.MaxValue));
Assert.That(reader.ReadLong(), Is.EqualTo(int.MaxValue));
Assert.That(reader.ReadFloat(), Is.EqualTo(float.MaxValue));
Assert.That(reader.ReadLongLong(), Is.EqualTo(ulong.MaxValue));
Assert.That(reader.ReadUTFString(), Is.EqualTo("test string"));
}
private TCPPacket Parse(byte[] data)
{
var result = new TCPPacket();
var packetReader = new PacketReader(data);
result.Size = packetReader.ReadLong();
result.Id = packetReader.ReadLong();
result.Type = packetReader.ReadLong();
result.Body = packetReader.ReadASCIIString();
result.EmptyString = packetReader.ReadASCIIString();
return result;
}
private async Task<ReceiveDataInfo> ReceiveDataAsync(ServerAddress address, byte[] data, CancellationToken ct, params char[] header)
{
var udpClient = new UdpClient();
var ipAddr = IPAddress.Parse(address.Ip);
try
{
udpClient.Connect(ipAddr, address.Port);
var sendTime = DateTime.Now;
await udpClient.SendAsync(data, data.Length);
Packet packet = null;
return await Task.Run(async () =>
{
while (true)
{
var clientResult = await udpClient.ReceiveAsync().WithCancellation(ct);
var remoteIp = clientResult.RemoteEndPoint.Address.ToString();
var remotePort = clientResult.RemoteEndPoint.Port;
var receiveDate = DateTime.Now;
var packetReader = new PacketReader(clientResult.Buffer);
var packetheader = packetReader.ReadLong();
if (packet == null)
{
packet = engineFactory.CreatePacket(packetheader);
}
packet.AddData(clientResult.Buffer);
if (packet.IsCompleted)
{
var messageReader = new PacketReader(packet.Payload);
var messageheader = messageReader.ReadByte();
var messageHeaderChar = Convert.ToChar(messageheader);
if (header.Contains(messageHeaderChar))
{
var result = new ReceiveDataInfo
{
Ping = (int)(DateTime.Now - sendTime).TotalMilliseconds,
Data = packet.Payload,
MessageHeaderChar = messageHeaderChar,
};
return result;
}
}
}
});
}
catch
{
throw new OperationCanceledException();
}
finally
{
udpClient.Close();
}
}