void RecvUnconnectedPacket(UdpStream buffer, UdpEndPoint ep)
{
UdpAssert.Assert(buffer.Ptr == 0);
buffer.Ptr = HeaderBitSize;
if (buffer.ReadByte(8) == (byte)UdpCommandType.Connect)
{
if (Config.AllowIncommingConnections && ((connLookup.Count + pendingConnections.Count) < Config.ConnectionLimit || Config.ConnectionLimit == -1))
{
if (Config.AutoAcceptIncommingConnections)
{
AcceptConnection(ep);
}
else
{
if (pendingConnections.Add(ep))
{
Raise(UdpEvent.PUBLIC_CONNECT_REQUEST, ep);
}
}
}
else
{
SendRefusedCommand(ep);
}
}
}
public UdpStream Acquire()
{
UdpStream stream = null;
lock (pool) {
if (pool.Count > 0)
{
stream = pool.Pop();
}
}
if (stream == null)
{
stream = new UdpStream(new byte[PacketSize * 2]);
stream.Pool = this;
}
UdpAssert.Assert(stream.IsPooled);
stream.IsPooled = false;
stream.Position = 0;
//stream.Size = (PacketSize - UdpMath.BytesRequired(UdpSocket.HeaderBitSize)) << 3;
stream.Size = (PacketSize - 0) << 3; //we're not using this for it's intended purpose,
//just hijacking it to use it's bitpacking methods.
return(stream);
}
void RecvUnconnectedPacket(UdpStream buffer, UdpEndPoint ep)
{
UdpAssert.Assert(buffer.Ptr == 0);
buffer.Ptr = HeaderBitSize;
if (buffer.ReadByte(8) == (byte)UdpCommandType.Connect)
{
if (Config.AllowIncommingConnections && ((connLookup.Count + pendingConnections.Count) < Config.ConnectionLimit || Config.ConnectionLimit == -1))
{
if (Config.AutoAcceptIncommingConnections)
{
AcceptConnection(ep, null);
}
else
{
if (pendingConnections.Add(ep))
{
object obj = null;
if (buffer.ReadByte(8) == UdpEvent.INTERNAL_COMMAND_HASOBJECT)
{
//they've also sent an object along with their connection request
serializer.Unpack(buffer, ref obj);
}
Raise(UdpEvent.PUBLIC_CONNECT_REQUEST, ep, obj);
}
}
}
else
{
SendRefusedCommand(ep);
}
}
}
public UdpStream Acquire()
{
UdpStream stream = null;
lock (pool) {
if (pool.Count > 0)
{
stream = pool.Pop();
}
}
if (stream == null)
{
stream = new UdpStream(new byte[socket.Config.PacketSize * 2]);
stream.Pool = this;
}
UdpAssert.Assert(stream.IsPooled);
stream.IsPooled = false;
stream.Position = 0;
stream.Size = (socket.Config.PacketSize - UdpMath.BytesRequired(UdpSocket.HeaderBitSize)) << 3;
return(stream);
}
internal void Release(UdpStream stream)
{
UdpAssert.Assert(stream.IsPooled == false);
lock (pool) {
stream.Size = 0;
stream.Position = 0;
stream.IsPooled = true;
pool.Push(stream);
}
}
bool ParseHeader(UdpStream stream)
{
// we should always start at ptr 0
UdpAssert.Assert(stream.Ptr == 0);
UdpHeader header = new UdpHeader();
header.Unpack(stream, socket);
// after unpacking the header, the pointer should be at the header size
UdpAssert.Assert(stream.Ptr == UdpSocket.HeaderBitSize);
int seqDistance = UdpMath.SeqDistance(header.ObjSequence, recvSequence, UdpHeader.SEQ_PADD);
// we have to be within window size
if (seqDistance > socket.Config.PacketWindow || seqDistance < -socket.Config.PacketWindow)
{
ConnectionError(UdpConnectionError.SequenceOutOfBounds);
return(false);
}
// this is an old packet
if (seqDistance <= 0)
{
return(false);
}
// update receive history
if (seqDistance >= UdpSocket.AckRedundancy)
{
recvHistory = 1UL;
}
else
{
recvHistory = (recvHistory << seqDistance) | 1UL;
}
// update our receive stats
recvSequence = header.ObjSequence;
recvSinceLastSend += 1;
// ack sent objects
AckHandles(header, true);
return(true);
}
