/// <summary>
/// 从缓存数据中读取包数据
/// 如果缓存数据中包含完整包数据,则从该缓存数据中取出,并读入到bodybuffer中
/// </summary>
public bool UF_Read(CBytesBuffer rawBuffer)
{
m_TmpBufferToRead.UF_clear();
m_TmpBufferToRead.UF_write(rawBuffer);
// CBytesBuffer tmpbuff = new CBytesBuffer(rawBuffer);
CBytesBuffer tmpbuff = m_TmpBufferToRead;
int packetsize = 0;
if (tmpbuff.UF_getSize() < HEAD_SIZE)
{
//不是完整的协议数据包,等待下次读取
Debugger.UF_Warn(string.Format("NetPacket Buffer Size[{0}] not Long enought to read", tmpbuff.UF_getSize()));
return(false);
}
//校验码比较
uint pMagic = CBytesConvert.UF_readuint32(tmpbuff);
if (MAGIC != pMagic)
{
///校验码不通过，丢弃该包缓存的全部数据
rawBuffer.UF_popBytes(rawBuffer.Length);
Debugger.UF_Error(string.Format("discard package: magic<{0}> | MAGIC<{1}>,RawBuffer Clear", MAGIC, pMagic));
return(false);
}
//读出包头
this.id = (int)CBytesConvert.UF_readuint32(tmpbuff);
this.retCode = (short)CBytesConvert.UF_readuint16(tmpbuff);
this.corCode = (int)CBytesConvert.UF_readuint32(tmpbuff);
this.size = (int)CBytesConvert.UF_readuint32(tmpbuff);
packetsize += HEAD_SIZE;
//包体不为0，读出包体
if (this.size > 0)
{
//buffer 比读出的size长
if (this.size > tmpbuff.UF_getSize())
{
//不是完整的协议数据包,等待下次读取
return(false);
}
//写入到body中
this.m_BodyBuffer.UF_write(tmpbuff.Buffer, (int)this.size);
packetsize += this.size;
}
//清空已经读取的RawBuffer
rawBuffer.UF_popBytes(packetsize);
return(true);
}