public override void Protocol(int packetID, CPacketStream packetStream)
{
switch(packetID)
{
case 256: // chat message temp packet id
{
int serial = packetStream.GetI32();
string msg = packetStream.GetString();
if (dig_list.Count > 100)
dig_list.RemoveAt(0);
string str = string.Format("{0} : {1}", serial, msg);
dig_list.Add(str);
form.RenewalMsg(this, str);
}
break;
default:
{
Write("protocol(invalid packet id)");
}
break;
}
}
public abstract void Protocol(int packetID, CPacketStream packetStream);
private void ReceiveCallBack(IAsyncResult ar)
{
try
{
int recvBytes = m_Sock.EndReceive(ar);
if (recvBytes == 0)
{
Disconnect();
return;
}
Buffer.BlockCopy(m_recvBuffer, 0, m_saveBuffer, m_offset, recvBytes);
m_offset += recvBytes;
// 패킷 파싱
// 최소한 헤더사이즈만큼 받았는지 검사
while (m_offset >= SampleConstant.PACKET_HEADER_SIZE)
{
CPacketHeader header = new CPacketHeader();
header.size = BitConverter.ToUInt16(m_saveBuffer, 0);
header.pid = BitConverter.ToUInt16(m_saveBuffer, 2);
// 패킷 최대 크기 검사
int packetSize = header.size + SampleConstant.PACKET_HEADER_SIZE;
if (packetSize > 4096)
{
Disconnect();
Write("Invalid Packet Size");
return;
}
// 패킷데이터 크기 검사
if (m_offset < packetSize)
break;
// 정상적인 패킷
CPacketStream packetStream = new CPacketStream(m_saveBuffer, SampleConstant.PACKET_HEADER_SIZE, packetSize - SampleConstant.PACKET_HEADER_SIZE);
// 버퍼 리셋
Buffer.BlockCopy(m_saveBuffer, packetSize, m_saveBuffer, 0, m_offset - packetSize);
m_offset -= packetSize;
if (m_offset < 0)
{
Disconnect();
Write("Invalid Offset Position");
return;
}
Protocol(header.pid, packetStream);
}
// 패킷 수신 대기 상태로 전환
BeginAsyncReceive();
}
catch (System.ObjectDisposedException ex)
{
Release();
Write(ex.ToString());
}
catch (System.Exception ex)
{
Disconnect();
Write(ex.ToString());
}
}
