protected void AsyncProcessQueue()
{
if (_closed.Value)
{
return;
}
if (_isWritingAsync.Exchange(true))
{
return;
}
MessageBuffer buffer = null;
if (!_writeQueue.TryPeek(out buffer))
{
_isWritingAsync.Exchange(false);
return;
}
try
{
_socket.BeginSend(buffer.Data(), buffer.Rpos(), buffer.GetActiveSize(),
SocketFlags.None, out _error, SendDataCallback, null);
}
catch (Exception ex)
{
CloseSocket();
if (LogException)
{
if (NetSettings.Logger != null)
{
NetSettings.Logger.Warn(ex);
}
else
{
Console.WriteLine(ex);
}
}
}
}
protected override void ReadHandler()
{
MessageBuffer buffer = GetReadBuffer();
while (buffer.GetActiveSize() > 0)
{
int size = RecvHeaderSize;
if (buffer.GetActiveSize() < size)
{
break;
}
// We just received nice new header
if (!_NextPacketDecrypted)
{
_authCrypt.DecryptRecv(buffer.Data(), buffer.Rpos(), size);
}
_NextPacketDecrypted = false;
var addr = Marshal.UnsafeAddrOfPinnedArrayElement(buffer.Data(), buffer.Rpos());
int packetId;
bool compressed;
if (ServerSocket)
{
var header = Marshal.PtrToStructure <ClientPacketHeader>(addr);
size = header.Size + sizeof(ushort);
packetId = header.PacketId;
compressed = header.Compressed != 0;
}
else
{
var header = Marshal.PtrToStructure <ServerPacketHeader>(addr);
size = header.Size + sizeof(int);
packetId = header.PacketId;
compressed = header.Compressed != 0;
}
var packetType = ObjectPacket.GetPacketType(packetId);
if (packetType == null || size <= 0 || size >= _MaxPacketSize)
{
if (LogException)
{
var message = string.Format("Client {0} sent malformed packet (size: {1}, packetId: {2}).", RemoteAddress, size, packetId);
if (NetSettings.Logger != null)
{
NetSettings.Logger.Warn(message);
}
else
{
Console.WriteLine(message);
}
}
if (CloseOnMalformedPacket)
{
CloseSocket();
return;
}
else
{
// Buffer are corrupted, reset!
buffer.Reset();
continue;
}
}
if (buffer.GetActiveSize() < size)
{
// NOTE: The header buffer of next upcoming packet is already decrypted in above code.
// We must skip _authCrypt.DecryptRecv() for next packet.
_NextPacketDecrypted = true;
break;
}
buffer.ReadCompleted(RecvHeaderSize);
size -= RecvHeaderSize;
DeserializePacket(packetType, compressed, size, buffer);
}
AsyncRead();
}
public void QueuePacket(MessageBuffer buffer)
{
_writeQueue.Enqueue(buffer);
AsyncProcessQueue();
}
private void WriteHandlerInternal(IAsyncResult result)
{
switch (_error)
{
case SocketError.Success:
case SocketError.IOPending:
break;
default:
CloseSocket();
return;
}
try
{
var transferedBytes = _socket.EndSend(result);
TotalBytesSent += transferedBytes;
MessageBuffer buffer = null;
if (!_writeQueue.TryPeek(out buffer))
{
throw new ApplicationException("BaseSocket: _writeQueue.TryPeek() failed, which is impossible!");
}
buffer.ReadCompleted(transferedBytes);
if (buffer.GetActiveSize() <= 0)
{
if (!_writeQueue.TryDequeue(out buffer))
{
throw new ApplicationException("BaseSocket: _writeQueue.TryDequeue() failed, which is impossible!");
}
}
_isWritingAsync.Exchange(false);
if (!_writeQueue.IsEmpty)
{
AsyncProcessQueue();
}
else if (_closing)
{
CloseSocket();
}
}
catch (Exception ex)
{
CloseSocket();
if (LogException)
{
if (NetSettings.Logger != null)
{
NetSettings.Logger.Warn(ex);
}
else
{
Console.WriteLine(ex);
}
}
}
}
public ByteBuffer(MessageBuffer buffer)
{
_rpos = 0;
_wpos = 0;
_storage = buffer.Move();
}
