public void OnReceived(byte[] rbuf, int offset, int count)
{
int currentRecvLen = count;
recvStream.Write(rbuf, offset, currentRecvLen);
recvLen += currentRecvLen;
Contract.Assert(recvLen == recvStream.Position);
int initialRecvLen = recvLen;
int readOffset = 0;
int loopCount = 0;
// rewind to read
recvStream.Position = 0;
while (recvLen >= msgLengthFieldLen)
{
uint msgLen = 0;
MsgSerializer.ReadUInt32(recvStream, out msgLen);
if (msgLen == 0)
{
throw new InvalidOperationException(
$"MsgLength zero! BufferLen:{recvStream.Length}, " +
$"CurrentRecvLen:{currentRecvLen}, RecvLen:{currentRecvLen}, " +
$"LoopCount:{loopCount}"
);
}
if (recvLen < msgLen)
{
break;
}
uint msgType = 0;
MsgSerializer.ReadUInt32(recvStream, out msgType);
var serializer = MsgSerializerFactory.Instance().Get(msgType);
if (serializer == null)
{
}
else
{
try
{
var m = (Msg)serializer.Unpack(recvStream);
m.Protocol = this;
listener.Notify(m);
++messageCount;
}
catch (Exception e)
{
throw e;
}
}
readOffset += (int)msgLen;
recvLen -= (int)msgLen;
}
if (readOffset > 0)
{
// 버퍼를 앞으로 옮김. MemoryStream의 GetBuffer()는 내부 버퍼를 돌려줌.
var buf = recvStream.GetBuffer();
int tailLen = initialRecvLen - (int)readOffset;
if (tailLen > 0)
{
Buffer.BlockCopy(buf, readOffset, buf, 0, tailLen);
}
}
recvStream.Position = recvLen; // 현재 받은 위치 끝으로 누적하기위해 이동
}
public void Set(uint msgType, Type type)
{
serializers[msgType] = new MsgSerializer(type, msgType);
}