碰上灵异事件了? 请高手帮忙~~

bool MyNetMsgReceiver::onRecviveUdpMsg(UdpSocket* sock, char* msg, int length, sockaddr_in* fromAddr)

{

	//DWORD	temp[16] = {0};

	ULONG	data = sock->getUserData();

	if (!data)	return true;

	

	if ((DWORD)msg < 0x1000)

	{

		__asm int 3h;   //在这里的时候msg的值还是正常的

	}



	IMAccount*	acc = g_ImAccMgr.getAccountObject(data);

	

	if ((DWORD)msg < 0x1000)

	{

		__asm int 3h;   //程序停在这里,此时mag的值被修改为0x10, 变成了一个错的指针

	}



	if (acc)

	{

		acc->handleUdpPacket(sock, msg, length, fromAddr);

	}



	return true;

}



//g_ImAccMgr.getAccountObject() 的代码





IMAccount*	IMAccountMgr::getAccountObject(size_t objId)

{

	

	IMAccount*	acc = NULL;



	EnterCriticalSection(&mCs);

	AccountIter it = tbl.begin();

	for (; it != tbl.end(); ++it)

		if ((*it)->getObjeciId() == objId)

		{

			acc = (*it);

			break;

		}



	LeaveCriticalSection(&mCs);

	return acc;

}