private bool ProcessOneMsg(byte[] msgBytes)
{
var head = SiMsgHelper.GetSiMsgHead(msgBytes);
switch (head.u16MsgType)
{
case SiMacroDef.O_SILMTENB_GETFILEINFO_RES:
PublishHelper.PublishMsg("topic", msgBytes); //TODO topic协商
break;
case SiMacroDef.O_SILMTENB_GETFILEATTRIB_RES:
break;
case SiMacroDef.O_SILMTENB_SETRDWRATTRIB_RES:
break;
case SiMacroDef.O_SILMTENB_DELFILE_RES:
break;
case SiMacroDef.O_SILMTENB_GETCAPACITY_RES:
break;
default:
//TODO 不知道是什么啊，老铁
break;
}
return(true);
}
private void DealMsgs()
{
//判断数据长度是否>head的长度
if (m_nMsgLen < 4)
{
//已经保存的数据长度连报文头长度都不够，继续攒
return;
}
var head = SiMsgHelper.GetSiMsgHead(m_siMsgBuffer);
if (head.u16MsgLength <= 0) //消息长度设置错误
{
//按照原来的处理流程是清空掉所有的数据
var newBuf = new byte[BUFF_LEN]; //构造一个新的byte[],旧的gc
m_siMsgBuffer = newBuf;
m_nMsgLen = 0;
return;
}
if (m_nMsgLen < head.u16MsgLength) //确保已经保存的数据可以解析出一个完整的消息
{
//已经保存的数据不够长，继续攒
return;
}
var msgData = m_siMsgBuffer.Take(head.u16MsgLength).ToArray(); //取出一条消息所需的数据
ProcessOneMsg(msgData);
m_nMsgLen -= head.u16MsgLength; //剩余的数据长度
//剩余的数据前移。在这里直接new一个新的数组，旧的gc回收。
var temp = new byte[BUFF_LEN];
Buffer.BlockCopy(m_siMsgBuffer, head.u16MsgLength, temp, 0, m_nMsgLen);
m_siMsgBuffer = temp;
DealMsgs(); //递归处理
}