public static Packet Deserialize(Session session, MemoryStream source, out object customErrorData)
{
customErrorData = null;
long begin = source.Position;
byte[] buffer = new byte[4];
source.Read(buffer, 0, sizeof(int));
int id = ConverterUtility.GetInt32(buffer);
Packet packet = ProtoRegister.GetPacket(id);
packet.DeSerialize(source);
return(packet);
}
public override void LoadData(byte[] bytes)
{
_dataList.Clear();
int pos = 0;
int dataCount = ConverterUtility.GetInt32(bytes, pos);
pos += Marshal.SizeOf(pos);//int大小;
for (int i = 0; i < dataCount; i++)
{
T data = Activator.CreateInstance <T>();
data.Decode(bytes, ref pos);
_dataList.Add(data);
}
}
protected static void ReadInt32(ref byte[] byteArr, ref int byteOffset, out int outputValue)
{
outputValue = ConverterUtility.GetInt32(byteArr, byteOffset);
byteOffset += ConverterUtility.INT_LENGTH;
}
private bool Process()
{
if (_receiver.ReceivedLength != _receiver.Length)
{
throw new Exception(string.Format("Receive length '{0}' is not equal to length '{1}'.", _receiver.ReceivedLength.ToString(), _receiver.Length.ToString()));
}
if (_receiver.Length < _defaultPacketLength)
{
throw new Exception(string.Format("Length '{0}' is smaller than length header.", _receiver.Length.ToString()));
}
if (_receiver.Length == _defaultPacketLength)
{
int packetLength = ConverterUtility.GetInt32(_receiver.GetBuffer());
if (packetLength <= 0)
{
string errorMessage = string.Format("Packet length '{0}' is invalid.", packetLength.ToString());
if (ErrorHandler != null)
{
ErrorHandler(this, SessionErrorCode.HeaderError, errorMessage);
return(false);
}
throw new Exception(errorMessage);
}
_receiver.Length += packetLength;
if (_receiver.Length > _receiver.BufferSize)
{
string errorMessage = string.Format("Length '{0}' is larger than buffer size '{1}'.", _receiver.Length.ToString(), _receiver.BufferSize.ToString());
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
{
int packetLength = _receiver.Length - _defaultPacketLength;
object customErrorData = null;
using (MemoryStream memoryStream = new MemoryStream(_receiver.GetBuffer(), _defaultPacketLength, packetLength, false))
{
lock (thisLock)
{
packet = SessionUtil.Deserialize(this, memoryStream, out customErrorData);
}
}
_receiver.Reset(_defaultPacketLength);
if (packet == null)
{
if (CustomErrorHandler != null)
{
CustomErrorHandler(this, customErrorData);
}
}
else
{
if (ReceiveHandler != null)
{
ReceiveHandler(this, packet);
}
}
}
catch (Exception exception)
{
_active = false;
if (ErrorHandler != null)
{
ErrorHandler(this, SessionErrorCode.DeserializeError, exception.ToString());
return(false);
}
throw;
}
return(true);
}