/// <summary>
/// Read callback for the receiving socket
/// </summary>
/// <param name="ar">Ar.</param>
private void OnRead(IAsyncResult ar)
{
EndPoint fromEndpoint = new IPEndPoint(IPAddress.Any, 0);
int length = 0;
try
{
length = socket.EndReceiveFrom(ar, ref fromEndpoint);
}
catch (ObjectDisposedException)
{
return;
}
byte[] data = new byte[length];
System.Buffer.BlockCopy(buffer.data, 0, data, 0, length);
BeginRead(); // start reading for more packets
BitReader r = new BitReader(data, length);
bool isUdp = r.ReadBool();
if (!isUdp)
{
return; // only accept udp packets
}
byte id = r.ReadUInt8();
var packet = Udp.CreateUdpPacket(id);
if (packet == null)
{
return; // failed to create a packet from the given id value
}
packet.ReadPacket(r);
HandlePacket(packet, fromEndpoint);
}
/// <summary>
/// Packet data received
/// </summary>
/// <param name="length"></param>
protected void ReceivedData(byte[] data, int length)
{
BitReader r = new BitReader(data, length);
bool isUdp = r.ReadBool();
byte id;
if (isUdp)
{
id = r.ReadUInt8();
var udpPacket = Udp.CreateUdpPacket(id);
if (udpPacket == null)
{
return;
}
udpPacket.ReadPacket(r);
HandleUdpPacket(udpPacket);
return;
}
ulong receivedSalt = r.ReadUInt64();
if (receivedSalt != salt)
{
return; // salt mismatch, TODO disconnect
}
#if DEBUG
if (Rand.Next(10000) / 100.0 < Simulate_Packet_Loss_Percent)
{
Log.Error("Stopped packet: " + r.ReadUInt16());
return;
}
#endif
lastReceived = DateTime.Now;
id = r.ReadUInt8(); // read packet type
var channel = channels[id]; // get channel for packet type
channel.ReceivePacket(r, id);
}
