private void Initialize(AddressFamily addressFamily)
{
if (_socket != null)
{
Close();
_socket = null;
}
switch (addressFamily)
{
case AddressFamily.InterNetwork:
Type = SessionType.IPv4;
break;
case AddressFamily.InterNetworkV6:
Type = SessionType.IPv6;
break;
default:
throw new Exception($"Not supported address family '{addressFamily.ToString()}'.");
}
_socket = new Socket(addressFamily, SocketType.Stream, ProtocolType.Tcp);
_receiver = new SessionReceiver(_defaultMaxPacketLength);
_receiver.Reset(_defaultPacketLength);
}
private bool Process()
{
if (_receiver.ReceivedLength != _receiver.Length)
{
throw new Exception($"Receive length '{_receiver.ReceivedLength}' is not equal to length '{_receiver.Length}'.");
}
if (_receiver.Length < _defaultPacketLength)
{
throw new Exception($"Length '{_receiver.Length}' is smaller than length header.");
}
if (_receiver.Length == _defaultPacketLength)
{
var packetLength = ConvertHelper.GetInt32(_receiver.GetBuffer());
if (packetLength <= 0)
{
var errorMessage = $"Packet length '{packetLength}' is invalid.";
if (ErrorHandler != null)
{
ErrorHandler(this, SessionErrorCode.HeaderError, errorMessage);
return(false);
}
throw new Exception(errorMessage);
}
_receiver.Length += packetLength;
if (_receiver.Length > _receiver.BufferSize)
{
var errorMessage = $"Length '{_receiver.Length}' is larger than buffer size '{_receiver.BufferSize}'.";
if (ErrorHandler != null)
{
ErrorHandler(this, SessionErrorCode.OutOfRangeError, errorMessage);//未接收完成,继续;
return(false);
}
throw new Exception(errorMessage);
}
return(true);
}
Packet packet = null;
try
{
var packetLength = _receiver.Length - _defaultPacketLength;
object customErrorData = null;
using (var memoryStream = new MemoryStream(_receiver.GetBuffer(), _defaultPacketLength, packetLength, false))
{
lock (thisLock)
{
packet = SessionUtil.Deserialize(this, memoryStream, out customErrorData);
}
}
_receiver.Reset(_defaultPacketLength);
if (packet == null)
{
CustomErrorHandler?.Invoke(this, customErrorData);
}
else
{
var id = packet.GetPacketId();
if (LuaProtoRegister.LuaProtoDict.TryGetValue(id, out var luaOverride))
{
if (!luaOverride)
{
ReceiveHandler?.Invoke(this, packet);
}
using (var memoryStream = new MemoryStream())
{
packet.Serialize(memoryStream);
LuaNetHelper.Send2Lua(id, memoryStream.ToArray());
}
}
else
{
ReceiveHandler?.Invoke(this, packet);
}
}
}
catch (Exception exception)
{
Active = false;
if (ErrorHandler != null)
{
ErrorHandler(this, SessionErrorCode.DeserializeError, exception.ToString());
return(false);
}
throw;
}
return(true);
}