void decode(IoBuffer inBuf, List <Message> outObjList)
{
while (inBuf.ReadSize > 0)
{
//包头
if (!m_inReceiving)
{
// 检查包头数据是否足够，这里应该一种防止包出错的机制，如果上个包出错，这里可以找到当前包的包头
while (true)
{
if (inBuf.ReadSize < Message.PACKAGE_PRE_LENGTH)
{
return;
}
if (inBuf.PeekInt32() == Message.PACKAGE_INDETIFIER)
{
// 已检测到数据头
inBuf.Skip(4);
break;
}
else
{
// 跳过这个字节
inBuf.Skip(1);
}
}
//找到前导字节了，取本包长度
var packLen = inBuf.ReadInt32();
//如果没有数据，那至少应该8字节，数据长度字段4字节 + 检验和4字节
if (packLen < 8)
{
Util.SafeLogError("收到的数据包总长小于8， 包总长：{0}", packLen);
continue;
}
m_waitingLength = packLen - 4; //减去数据长度字段4字节
m_inReceiving = true;
}
//包体
if (m_inReceiving)
{
if (inBuf.ReadSize < m_waitingLength)
{
return;
}
var msgLen = m_waitingLength - 4; //减去检验和4字节
m_inReceiving = false;
m_waitingLength = 0;
//获得检验和
var checkSum1 = inBuf.ReadInt32();
//计算检验和
var checkSum2 = Message.BPHash(inBuf.Buffer, inBuf.ReadPos, msgLen);
//检验和不对？
if (checkSum1 != checkSum2)
{
//跳过这个包
inBuf.Skip(msgLen);
Util.SafeLogError("数据包检验和不正确， checkSum1：{0}，checkSum2：{0}", checkSum1, checkSum2);
continue;
}
//解密数据
Encrypt.Tea16.DecryptInplace(inBuf.Buffer, inBuf.ReadPos, msgLen);
var msgObj = Message.FromIOBuffer(inBuf, msgLen);
//如果解析正确，加入消息列表
if (msgObj != null)
{
lock (outObjList)
{
outObjList.Add(msgObj);
}
}
}
}
}