/// <summary>
/// 解析数据 处理沾包
/// </summary>
public void RecvBuffer(byte[] buffer, int length)
{
//塞不下了 扩容 拷贝数据
if (_recvBuffOffset + length > _recvBuffers.Length)
{
byte[] oldRecvBuff = _recvBuffers;
_recvBuffers = new byte[_recvBuffers.Length + length];
Array.Copy(oldRecvBuff, 0, _recvBuffers, 0, _recvBuffOffset);
}
Array.Copy(buffer, 0, _recvBuffers, _recvBuffOffset, length);
_recvBuffOffset += length;
while (true)
{
// 还没包头大就算了吧
if (_recvBuffOffset < NetDefine.PACKET_HEAD_LEN)
{
break;
}
if (_packetLength <= 0)
{
_packetLength = BitConverter.ToInt16(_recvBuffers,
NetDefine.PACKET_HEAD_LEN - NetDefine.PACKET_LENGTH_BITS);
_packetLength = System.Net.IPAddress.NetworkToHostOrder(_packetLength); //转换到服务器端 大端
_packetLength += NetDefine.PACKET_HEAD_LEN;
}
//读取了一个包的数据量了
if (_packetLength > 0 && _recvBuffOffset >= _packetLength)
{
short packId = BitConverter.ToInt16(_recvBuffers, NetDefine.TCP_HEADER_BITS);
packId = System.Net.IPAddress.NetworkToHostOrder(packId);
byte[] tempBytes = new byte[_packetLength - NetDefine.PACKET_HEAD_LEN]; //把数据存出来
Array.Copy(_recvBuffers, NetDefine.PACKET_HEAD_LEN, tempBytes, 0,
_recvBuffOffset - NetDefine.PACKET_HEAD_LEN);
//解出来一个包
_packetParser.Parser(packId, tempBytes);
//沾包了
int offset = _recvBuffOffset - _packetLength;
if (offset > 0)
{
Array.Copy(_recvBuffers, _packetLength, _recvBuffers, 0, offset);
}
_recvBuffOffset = offset;
_packetLength = 0;
}
else
{
break;
}
}
}
