/**
* \brief 接收指令到缓冲区
* \param pstrCmd 指令缓冲区
* \param nCmdLen 指令缓冲区的大小
* \param wait 当套接口数据没有准备好的时候,是否需要等待
* \return 实际接收的指令大小
* 返回-1,表示接收错误
* 返回0,表示接收超时
* 返回整数,表示实际接收的字节数
*/
int CSocket::recvToCmd(void *pstrCmd,const int nCmdLen,const bool wait)
{
//printf("CSocket::recvToCmd\n");
//够一个完整的纪录,不需要向套接口接收数据
do {
if (_rcv_raw_size >= packetMinSize()/* && _rcv_queue.rd_size() >= packetMinSize()*/)
{
DWORD nRecordLen = packetSize(&_rcv_queue.rd_buf()[PACKHEADSIZE]);
if (_rcv_raw_size >= nRecordLen/* && _rcv_queue.rd_size() >= nRecordLen*/)
{
int retval = packetUnpack(_rcv_queue.rd_buf(),nRecordLen,(BYTE*)pstrCmd);
_rcv_queue.rd_flip(nRecordLen + PACKHEADLASTSIZE);
InterlockedExchangeAdd( (LONG*)&_rcv_raw_size, -( nRecordLen + PACKHEADLASTSIZE));
return retval;
}
}
else
{
break;
}
} while(0);
do {
int retval = recvToBuf();
if (-1 == retval || (0 == retval && !wait))
return retval;
//够一个完整的纪录,不需要向套接口接收数据
do {
if (_rcv_raw_size >= packetMinSize()/* && _rcv_queue.rd_size() >= packetMinSize()*/)
{
DWORD nRecordLen = packetSize(&_rcv_queue.rd_buf()[PACKHEADSIZE]);
if (_rcv_raw_size >= nRecordLen/* && _rcv_queue.rd_size() >= nRecordLen*/)
{
int retval = packetUnpack(_rcv_queue.rd_buf(),nRecordLen,(BYTE*)pstrCmd);
_rcv_queue.rd_flip(nRecordLen + PACKHEADLASTSIZE);
InterlockedExchangeAdd((LONG*)&_rcv_raw_size, -( nRecordLen + PACKHEADLASTSIZE ));
return retval;
}
}
else
{
break;
}
} while(0);
} while(true);
return 0;
}
DWORD Socket::successUnpack(void *cmd)
{
DWORD retval = 0;
//有消息还没有读出来
CheckConditonReturn(m_recvRawSize >= packetMinSize(),0);
//理论上消息的长度
DWORD recordLen = packetSize(m_recvQueue.rdBuffer());
if(m_recvRawSize >= recordLen)
{
retval = packetUnpack(m_recvQueue.rdBuffer(),recordLen,(BYTE*)cmd);
m_recvQueue.rdFlip(recordLen);
m_recvRawSize -= recordLen;
}
return retval;
}
/**
* \brief 接收指令到缓冲区,不从套接口接收指令,只是把接收缓冲的数据解包
* \param pstrCmd 指令缓冲区
* \param nCmdLen 指令缓冲区的大小
* \return 实际接收的指令大小
* 返回-1,表示接收错误
* 返回0,表示接收超时
* 返回整数,表示实际接收的字节数
*/
int CSocket::recvToCmd_NoPoll(void *pstrCmd,const int nCmdLen)
{
printf("CSocket::recvToCmd_NoPoll\n");
//够一个完整的纪录,不需要向套接口接收数据
do {
if (_rcv_raw_size >= packetMinSize()/* && _rcv_queue.rd_size() >= packetMinSize()*/)
{
DWORD nRecordLen = packetSize(_rcv_queue.rd_buf() + PACKHEADSIZE);
if (_rcv_raw_size >= nRecordLen/* && _rcv_queue.rd_size() >= nRecordLen*/)
{
int retval = packetUnpack(_rcv_queue.rd_buf(),nRecordLen,(BYTE*)pstrCmd);
_rcv_queue.rd_flip(nRecordLen + PACKHEADLASTSIZE);
InterlockedExchangeAdd((LONG*)&_rcv_raw_size, -( nRecordLen + PACKHEADLASTSIZE ));
return retval;
}
else
{
printf("处理错误的包！\n");
}
}
} while(0);
return 0;
}
