public Client(GameScene gameScene)
{
GameScene = gameScene;
PacketMap.Initialize();
_userName = gameScene.Engine.Username;
_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_receiveBufferQueue = new ByteQueue();
_readingBufferQueue = new ByteQueue();
_fragPackets = new ByteQueue();
_socketAsyncArgs = new SocketAsyncEventArgs();
_receiveQueueReader = new Thread(ProcessReadQueue);
}
public Client(int clientId, int dbId, Server server, Socket socket)
{
IsLoggingIn = false;
ClientId = clientId;
DbId = dbId;
Server = server;
_socket = socket;
_currentBuffer = new ByteQueue();
_processedBuffer = new ByteQueue();
FragPackets = new ByteQueue();
_nextActivityCheck = DateTime.Now + TimeSpan.FromSeconds(30);
}
internal void SendStart()
{
if (!Running || !_socket.Connected)
{
DisposeSendSystem();
return;
}
try
{
ByteQueue byteQueue = new ByteQueue();
int length = 0;
while (!PacketsToBeSent.IsEmpty && length <= 1024)
{
Packet packet;
if (!PacketsToBeSent.TryDequeue(out packet))
{
Interlocked.Exchange(ref _timesEnqueuedForSend, 0);
return;
}
if (!packet.Shared)
packet.Write();
byte[] packetBuffer = packet.GetBuffer();
length += packetBuffer.Length;
byteQueue.Enqueue(packetBuffer, 0, packetBuffer.Length);
packet.Release();
}
if (byteQueue.Length > 0)
{
byte[] data = new byte[length];
byteQueue.Dequeue(data, 0, data.Length);
Send_Async(data);
}
else
{
Interlocked.Exchange(ref _timesEnqueuedForSend, 0);
if (!PacketsToBeSent.IsEmpty)
{
int newValue = Interlocked.Increment(ref _timesEnqueuedForSend);
if (newValue == 1)
{
Server.SendClientQueue.Enqueue(this);
Server.NetworkSignal.Set();
}
}
}
}
catch (Exception)
{
MarkToDispose();
DisposeSendSystem();
//if (packet != null)
//Logger.Log(LogLevel.Error, "Sending packet: {0}", packet.ToString());
//Logger.Log(LogLevel.Error, e.ToString());
// TODO: log something?
}
}
private static byte[] GetBufferToBeRead(ByteQueue processedBuffer, Client client, int length)
{
int availableData = client.FragPackets.Size + processedBuffer.Size;
if (length > availableData)
return null;
int fromFrag;
byte[] data = new byte[length];
if (length >= client.FragPackets.Size)
fromFrag = client.FragPackets.Size;
else
fromFrag = length;
client.FragPackets.Dequeue(data, 0, fromFrag);
int fromProcessed = length - fromFrag;
processedBuffer.Dequeue(data, fromFrag, fromProcessed);
return data;
}
private void ProcessReadQueue()
{
while (_recv.WaitOne())
{
ByteQueue temp;
lock (_queueLock)
{
temp = _receiveBufferQueue;
_receiveBufferQueue = _readingBufferQueue;
}
_readingBufferQueue = temp;
int length = _fragPackets.Size + _readingBufferQueue.Size;
while (length > 0)
{
byte packetType = _fragPackets.Size > 0
? _fragPackets.GetPacketId()
: _readingBufferQueue.GetPacketId();
ClientPacketHandler handler = PacketHandlers.GetHandler((PacketType) packetType);
if (handler == null)
{
byte[] unhandled = GetBufferToBeRead(length);
Console.WriteLine("Received unknown packet! Id:{0}", packetType);
Console.WriteLine("Fehler {0}", BitConverter.ToString(unhandled));
length = 0;
}
else if (handler.Length == 0)
{
byte[] data = GetBufferToBeRead(length);
Console.WriteLine("Klappt {0}", BitConverter.ToString(data));
if (length >= handler.MinimumLength)
{
PacketReader reader = new PacketReader(data, length);
handler.OnReceive(this, reader);
if (reader.Failed)
{
EnqueueFragment(data);
length = 0;
}
else
{
_readingBufferQueue.Enqueue(data, reader.Index, data.Length - reader.Index);
length = _readingBufferQueue.Length;
}
}
else
{
EnqueueFragment(data);
length = 0;
}
}
else if (length >= handler.Length)
{
byte[] data = GetBufferToBeRead(handler.Length);
/*using (StreamWriter sw = new StreamWriter(String.Format("recv_packets{0}.log", _userName), true))
{
sw.WriteLine("Fixed length: {0}", BitConverter.ToString(data));
}*/
PacketReader reader = new PacketReader(data, handler.Length);
handler.OnReceive(this, reader);
// If we failed it's because the packet is wrong
if (reader.Failed)
{
Dispose();
length = 0;
}
else
{
if (_fragPackets.Length > 0)
throw new Exception("Fragpackets must be empy here!");
length = _readingBufferQueue.Length;
}
}
else
{
/*using (StreamWriter sw = new StreamWriter(String.Format("recv_packets{0}.log", _userName), true))
{ */
byte[] data = GetBufferToBeRead(length);
//sw.WriteLine("Fragmented fixed: {0}", BitConverter.ToString(data));
EnqueueFragment(data);
length = 0;
//}
}
}
}
}
