static int engine_find_datadir(char *argv0)
{
	/* 1) use provided data-dir override */
	if(datadir[0])
	{
		if(fs_is_dir(datadir))
			return 0;
		else
		{
			dbg_msg("Config", "specified data-dir '%s' does not exist", datadir);
			return -1;
		}
	}
	
	/* 2) use data-dir in PWD if present */
	if(fs_is_dir("data"))
	{
		strcpy(datadir, "data");
		return 0;
	}
	
	/* 3) use compiled-in data-dir if present */
	if (fs_is_dir(DATA_DIR))
	{
		strcpy(datadir, DATA_DIR);
		return 0;
	}
	
	/* 4) check for usable path in argv[0] */
	{
		unsigned int pos = strrchr(argv0, '/') - argv0;
		
		if (pos < sizeof(datadir))
		{
			char basedir[sizeof(datadir)];
			strncpy(basedir, argv0, pos);
			basedir[pos] = '\0';
			str_format(datadir, sizeof(datadir), "%s/data", basedir);
			
			if (fs_is_dir(datadir))
				return 0;
		}
	}
	
#if defined(CONF_FAMILY_UNIX)
	/* 5) check for all default locations */
	{
		const char *sdirs[] = {
			"/usr/share/teeworlds",
			"/usr/local/share/teeworlds"
			"/opt/teeworlds"
		};
		const int sdirs_count = sizeof(sdirs) / sizeof(sdirs[0]);
		
		int i;
		for (i = 0; i < sdirs_count; i++)
		{
			if (fs_is_dir(sdirs[i]))
			{
				strcpy(datadir, sdirs[i]);
				return 0;
			}
		}
	}
#endif
	
	/* no data-dir found */
	dbg_msg("Config", "warning no data directory found");
	return -1;
}

bool ISOSendSlowInit()
{
	const int bufsize=32;
	u8 rcvbuf[bufsize];
	u8 len;

	GPIO_InitTypeDef GPIO_InitStructure;
											
	len = 0;

	if(!KWPWaitBusFree()){
		return false;
	}

	USART3->CR1 &= (~0x00000004);

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOB, &GPIO_InitStructure);

	GPIOB->BRR=GPIO_Pin_10;
	DelayMs(200);
	GPIOB->BSRR=GPIO_Pin_10;
	DelayMs(400);
	GPIOB->BRR=GPIO_Pin_10;
	DelayMs(400);
	GPIOB->BSRR=GPIO_Pin_10;
	DelayMs(400);
	GPIOB->BRR=GPIO_Pin_10;
	DelayMs(400);

	GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
	GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
	GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
	GPIO_Init(GPIOB, &GPIO_InitStructure);

//	dbg_msg("send 5 baut ok!");	   
	USART3->CR1 |= 0x04;
	
 	len=ISOReceiveFrameByAutoLength(rcvbuf,bufsize,800);
	
	if(len!=3){
		dbg_msg("~~~no 0x55!");
		return false;
	}

	DelayMs(40);
	
	if(!KWPSendFrame("\xf7",1))
	{
		dbg_msg("sed error!");
		return false;
	}
	if(!ISOReceiveFrameByAutoLength(rcvbuf,bufsize,1000))
	{
		dbg_msg("rec error!");
		DelayMs(1000);
		return false;
	}
	dbg_msg("f7:");
	dbg_msg(rcvbuf);
	DelayMs(100);
//	KWPSendBytes(pdata,length);

	return true;
}

int CNetConnection::Update()
{
	int64 Now = time_get();

	if(State() == NET_CONNSTATE_OFFLINE || State() == NET_CONNSTATE_ERROR)
		return 0;

	// check for timeout
	if(State() != NET_CONNSTATE_OFFLINE &&
		State() != NET_CONNSTATE_CONNECT &&
		(Now-m_LastRecvTime) > time_freq()*10)
	{
		m_State = NET_CONNSTATE_ERROR;
		SetError("Timeout");
	}

	// fix resends
	if(m_Buffer.First())
	{
		CNetChunkResend *pResend = m_Buffer.First();

		// check if we have some really old stuff laying around and abort if not acked
		if(Now-pResend->m_FirstSendTime > time_freq()*10)
		{
			m_State = NET_CONNSTATE_ERROR;
			SetError("Too weak connection (not acked for 10 seconds)");
		}
		else
		{
			// resend packet if we havn't got it acked in 1 second
			if(Now-pResend->m_LastSendTime > time_freq())
				ResendChunk(pResend);
		}
	}

	// send keep alives if nothing has happend for 250ms
	if(State() == NET_CONNSTATE_ONLINE)
	{
		if(time_get()-m_LastSendTime > time_freq()/2) // flush connection after 500ms if needed
		{
			int NumFlushedChunks = Flush();
			if(NumFlushedChunks && g_Config.m_Debug)
				dbg_msg("connection", "flushed connection due to timeout. %d chunks.", NumFlushedChunks);
		}

		if(time_get()-m_LastSendTime > time_freq())
			SendControl(NET_CTRLMSG_KEEPALIVE, 0, 0);
	}
	else if(State() == NET_CONNSTATE_CONNECT)
	{
		if(time_get()-m_LastSendTime > time_freq()/2) // send a new connect every 500ms
			SendControl(NET_CTRLMSG_CONNECT, 0, 0);
	}
	else if(State() == NET_CONNSTATE_PENDING)
	{
		if(time_get()-m_LastSendTime > time_freq()/2) // send a new connect/accept every 500ms
			SendControl(NET_CTRLMSG_CONNECTACCEPT, 0, 0);
	}

	return 0;
}

void CMapLayers::OnRender()
{
	if(Client()->State() != IClient::STATE_ONLINE && Client()->State() != IClient::STATE_DEMOPLAYBACK)
		return;

	CUIRect Screen;
	Graphics()->GetScreen(&Screen.x, &Screen.y, &Screen.w, &Screen.h);

	vec2 Center = m_pClient->m_pCamera->m_Center;
	//float center_x = gameclient.camera->center.x;
	//float center_y = gameclient.camera->center.y;

	bool PassedGameLayer = false;

	for(int g = 0; g < m_pLayers->NumGroups(); g++)
	{
		CMapItemGroup *pGroup = m_pLayers->GetGroup(g);

		if(!pGroup)
		{
			dbg_msg("MapLayers", "Error:Group was null, Group Number = %d, Total Groups = %d", g, m_pLayers->NumGroups());
			dbg_msg("MapLayers", "This is here to prevent a crash but the source of this is unknown, please report this for it to get fixed");
			dbg_msg("MapLayers", "we need mapname and crc and the map that caused this if possible, and anymore info you think is relevant");
			continue;
		}

		if(!g_Config.m_GfxNoclip && pGroup->m_Version >= 2 && pGroup->m_UseClipping)
		{
			// set clipping
			float Points[4];
			MapScreenToGroup(Center.x, Center.y, m_pLayers->GameGroup(), m_pClient->m_pCamera->m_Zoom);
			Graphics()->GetScreen(&Points[0], &Points[1], &Points[2], &Points[3]);
			float x0 = (pGroup->m_ClipX - Points[0]) / (Points[2]-Points[0]);
			float y0 = (pGroup->m_ClipY - Points[1]) / (Points[3]-Points[1]);
			float x1 = ((pGroup->m_ClipX+pGroup->m_ClipW) - Points[0]) / (Points[2]-Points[0]);
			float y1 = ((pGroup->m_ClipY+pGroup->m_ClipH) - Points[1]) / (Points[3]-Points[1]);

			Graphics()->ClipEnable((int)(x0*Graphics()->ScreenWidth()), (int)(y0*Graphics()->ScreenHeight()),
				(int)((x1-x0)*Graphics()->ScreenWidth()), (int)((y1-y0)*Graphics()->ScreenHeight()));
		}

		MapScreenToGroup(Center.x, Center.y, pGroup, m_pClient->m_pCamera->m_Zoom);

		for(int l = 0; l < pGroup->m_NumLayers; l++)
		{
			CMapItemLayer *pLayer = m_pLayers->GetLayer(pGroup->m_StartLayer+l);
			bool Render = false;
			bool IsGameLayer = false;
			bool IsFrontLayer = false;
			bool IsSwitchLayer = false;
			bool IsTeleLayer = false;
			bool IsSpeedupLayer = false;

			if(pLayer == (CMapItemLayer*)m_pLayers->GameLayer())
			{
				IsGameLayer = true;
				PassedGameLayer = 1;
			}

			if(pLayer == (CMapItemLayer*)m_pLayers->FrontLayer())
				IsFrontLayer = true;

			if(pLayer == (CMapItemLayer*)m_pLayers->SwitchLayer())
				IsSwitchLayer = true;

			if(pLayer == (CMapItemLayer*)m_pLayers->TeleLayer())
				IsTeleLayer = true;

			if(pLayer == (CMapItemLayer*)m_pLayers->SpeedupLayer())
				IsSpeedupLayer = true;

			// skip rendering if detail layers if not wanted
			if(pLayer->m_Flags&LAYERFLAG_DETAIL && !g_Config.m_GfxHighDetail && !IsGameLayer)
				continue;

			if(m_Type == -1)
				Render = true;
			else if(m_Type == 0)
			{
				if(PassedGameLayer)
					return;
				Render = true;
			}
			else
			{
				if(PassedGameLayer && !IsGameLayer)
					Render = true;
			}

			if(Render && pLayer->m_Type == LAYERTYPE_TILES && Input()->KeyPressed(KEY_LCTRL) && Input()->KeyPressed(KEY_LSHIFT) && Input()->KeyDown(KEY_KP0))
			{
				CMapItemLayerTilemap *pTMap = (CMapItemLayerTilemap *)pLayer;
				CTile *pTiles = (CTile *)m_pLayers->Map()->GetData(pTMap->m_Data);
				CServerInfo CurrentServerInfo;
				Client()->GetServerInfo(&CurrentServerInfo);
				char aFilename[256];
				str_format(aFilename, sizeof(aFilename), "dumps/tilelayer_dump_%s-%d-%d-%dx%d.txt", CurrentServerInfo.m_aMap, g, l, pTMap->m_Width, pTMap->m_Height);
				IOHANDLE File = Storage()->OpenFile(aFilename, IOFLAG_WRITE, IStorage::TYPE_SAVE);
				if(File)
				{
//.........这里部分代码省略.........

const NETADDR *CServerBrowserFavorites::UpdateFavorites()
{
	NETADDR *pResult = 0;

	// check if hostname lookup for favourites is done
	if(m_FavLookup.m_Active && m_FavLookup.m_HostLookup.m_Job.Status() == CJob::STATE_DONE)
	{
		// check if favourite has not been removed in the meanwhile
		if(m_FavLookup.m_FavoriteIndex != -1)
		{
			if(m_FavLookup.m_HostLookup.m_Job.Result() == 0)
			{
				CFavoriteServer *pEntry = FindFavoriteByAddr(m_FavLookup.m_HostLookup.m_Addr, 0);
				if(pEntry)
				{
					// address is already in the list -> acquire hostname if existing entry lacks it and drop multiple address entry
					if(pEntry->m_State != FAVSTATE_HOST)
					{
						str_copy(pEntry->m_aHostname, m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_aHostname, sizeof(pEntry->m_aHostname));
						pEntry->m_State = FAVSTATE_HOST;
						dbg_msg("test", "fav aquired hostname, %s", m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_aHostname);
					}
					RemoveFavoriteEntry(m_FavLookup.m_FavoriteIndex);
					dbg_msg("test", "fav removed multiple entry");
				}
				else
				{
					// address wasn't in the list yet -> add it (optional check if hostname matches given address -> drop entry on fail)
					if(m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_State == FAVSTATE_LOOKUP ||
						net_addr_comp(&m_aFavoriteServers[m_NumFavoriteServers].m_Addr, &m_FavLookup.m_HostLookup.m_Addr) == 0)
					{
						m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_Addr = m_FavLookup.m_HostLookup.m_Addr;
						m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_State = FAVSTATE_HOST;
						pResult = &m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_Addr;
						dbg_msg("test", "fav added, %s", m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_aHostname);
					}
					else
					{
						RemoveFavoriteEntry(m_FavLookup.m_FavoriteIndex);
						dbg_msg("test", "fav removed entry that failed hostname-address check");
					}
				}
			}
			else
			{
				// hostname lookup failed
				if(m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_State == FAVSTATE_LOOKUP)
				{
					m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_State = FAVSTATE_INVALID;
					dbg_msg("test", "fav invalid, %s", m_aFavoriteServers[m_FavLookup.m_FavoriteIndex].m_aHostname);
				}
				else
				{
					RemoveFavoriteEntry(m_FavLookup.m_FavoriteIndex);
					dbg_msg("test", "fav removed invalid check-based entry");
				}
			}
		}
		m_FavLookup.m_Active = false;
	}

	// add hostname lookup for favourites
	if(m_FavLookup.m_LookupCount > 0 && !m_FavLookup.m_Active)
	{
		for(int i = 0; i < m_NumFavoriteServers; i++)
		{
			if(m_aFavoriteServers[i].m_State <= FAVSTATE_LOOKUPCHECK)
			{
				m_pEngine->HostLookup(&m_FavLookup.m_HostLookup, m_aFavoriteServers[i].m_aHostname, m_pNetClient->NetType());
				m_FavLookup.m_FavoriteIndex = i;
				--m_FavLookup.m_LookupCount;
				m_FavLookup.m_Active = true;
				break;
			}
		}
	}

	return pResult;
}

static int interpret_table_entry(const char *line)
{
	char buf[1024], type, *path = NULL, *name = NULL;
	int len;
	struct path_htbl_element *ph_elt = NULL;
	struct name_htbl_element *nh_elt = NULL;
	unsigned int mode = 0755, uid = 0, gid = 0, major = 0, minor = 0;
	unsigned int start = 0, increment = 0, count = 0;

	buf[1023] = 0;
	if (sscanf(line, "%1023s %c %o %u %u %u %u %u %u %u",
		   buf, &type, &mode, &uid, &gid, &major, &minor,
		   &start, &increment, &count) < 0)
		return sys_err_msg("sscanf failed");

	dbg_msg(3, "name %s, type %c, mode %o, uid %u, gid %u, major %u, "
		"minor %u, start %u, inc %u, cnt %u",
		buf, type, mode, uid, gid, major, minor, start,
		increment, count);

	len = strlen(buf);
	if (len == 1023)
		return err_msg("too long path");

	if (!strcmp(buf, "/"))
		return err_msg("device table entries require absolute paths");
	if (buf[1] == '\0')
		return err_msg("root directory cannot be created");
	if (strstr(buf, "//"))
		return err_msg("'//' cannot be used in the path");
	if (buf[len - 1] == '/')
		return err_msg("do not put '/' at the end");

	if (strstr(buf, "/./") || strstr(buf, "/../") ||
	    !strcmp(buf + len - 2, "/.") || !strcmp(buf + len - 3, "/.."))
		return err_msg("'.' and '..' cannot be used in the path");

	switch (type) {
		case 'd':
			mode |= S_IFDIR;
			break;
		case 'f':
			mode |= S_IFREG;
			break;
		case 'p':
			mode |= S_IFIFO;
			break;
		case 'c':
			mode |= S_IFCHR;
			break;
		case 'b':
			mode |= S_IFBLK;
			break;
		default:
			return err_msg("unsupported file type '%c'", type);
	}

	if (separate_last(buf, len, &path, &name))
		return -1;

	/*
	 * Check if this path already exist in the path hash table and add it
	 * if it is not.
	 */
	ph_elt = hashtable_search(path_htbl, path);
	if (!ph_elt) {
		dbg_msg(3, "inserting '%s' into path hash table", path);
		ph_elt = malloc(sizeof(struct path_htbl_element));
		if (!ph_elt) {
			err_msg("cannot allocate %zd bytes of memory",
				sizeof(struct path_htbl_element));
			goto out_free;
		}

		if (!hashtable_insert(path_htbl, path, ph_elt)) {
			err_msg("cannot insert into path hash table");
			goto out_free;
		}

		ph_elt->path = path;
		path = NULL;
		ph_elt->name_htbl = create_hashtable(128, &r5_hash,
						     &is_equivalent);
		if (!ph_elt->name_htbl) {
			err_msg("cannot create name hash table");
			goto out_free;
		}
	}

	if (increment != 0 && count == 0)
		return err_msg("count cannot be zero if increment is non-zero");

	/*
	 * Add the file/directory/device node (last component of the path) to
	 * the name hashtable. The name hashtable resides in the corresponding
	 * path hashtable element.
	 */

	if (count == 0) {
		/* This entry does not require any iterating */
//.........这里部分代码省略.........

void CCommandProcessorFragment_OpenGL::SetState(const CCommandBuffer::SState &State)
{
	// blend
	switch(State.m_BlendMode)
	{
	case CCommandBuffer::BLEND_NONE:
		glDisable(GL_BLEND);
		break;
	case CCommandBuffer::BLEND_ALPHA:
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		break;
	case CCommandBuffer::BLEND_ADDITIVE:
		glEnable(GL_BLEND);
		glBlendFunc(GL_SRC_ALPHA, GL_ONE);
		break;
	default:
		dbg_msg("render", "unknown blendmode %d\n", State.m_BlendMode);
	};

	// clip
	if(State.m_ClipEnable)
	{
		glScissor(State.m_ClipX, State.m_ClipY, State.m_ClipW, State.m_ClipH);
		glEnable(GL_SCISSOR_TEST);
	}
	else
		glDisable(GL_SCISSOR_TEST);
	

	// texture
	glDisable(GL_TEXTURE_2D);
	glDisable(GL_TEXTURE_3D);
	if(State.m_Texture >= 0 && State.m_Texture < CCommandBuffer::MAX_TEXTURES)
	{
		if(State.m_Dimension == 2 && (m_aTextures[State.m_Texture].m_State&CTexture::STATE_TEX2D))
		{
			glEnable(GL_TEXTURE_2D);
			glBindTexture(GL_TEXTURE_2D, m_aTextures[State.m_Texture].m_Tex2D);
		}
		else if(State.m_Dimension == 3 && (m_aTextures[State.m_Texture].m_State&CTexture::STATE_TEX3D))
		{
			glEnable(GL_TEXTURE_3D);
			glBindTexture(GL_TEXTURE_3D, m_aTextures[State.m_Texture].m_Tex3D);
		}
		else
			dbg_msg("render", "invalid texture %d %d %d\n", State.m_Texture, State.m_Dimension, m_aTextures[State.m_Texture].m_State);
	}

	// wrap mode
	switch(State.m_WrapModeU)
	{
	case IGraphics::WRAP_REPEAT:
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
		break;
	case IGraphics::WRAP_CLAMP:
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		break;
	default:
		dbg_msg("render", "unknown wrapmode %d\n", State.m_WrapModeU);
	};

	switch(State.m_WrapModeV)
	{
	case IGraphics::WRAP_REPEAT:
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
		break;
	case IGraphics::WRAP_CLAMP:
		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		break;
	default:
		dbg_msg("render", "unknown wrapmode %d\n", State.m_WrapModeV);
	};

	if(State.m_Texture >= 0 && State.m_Texture < CCommandBuffer::MAX_TEXTURES && State.m_Dimension == 3)
	{
		glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
		glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
		glTexParameteri(GL_TEXTURE_3D, GL_TEXTURE_WRAP_R, GL_REPEAT);

	}

	// screen mapping
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(State.m_ScreenTL.x, State.m_ScreenBR.x, State.m_ScreenBR.y, State.m_ScreenTL.y, 1.0f, 10.f);
}

bool CSqlServer::Connect()
{
	Lock();

	if (m_pDriver != NULL && m_pConnection != NULL)
	{
		try
		{
			// Connect to specific database
			m_pConnection->setSchema(m_aDatabase);
			return true;
		}
		catch (sql::SQLException &e)
		{
			dbg_msg("sql", "MySQL Error: %s", e.what());
		}
		catch (const std::exception& ex)
		{
			dbg_msg("sql", "MySQL Error: %s", ex.what());
		}
		catch (const std::string& ex)
		{
			dbg_msg("sql", "MySQL Error: %s", ex.c_str());
		}
		catch (...)
		{
			dbg_msg("sql", "Unknown Error cause by the MySQL/C++ Connector");
		}

		dbg_msg("sql", "ERROR: SQL connection failed");
		UnLock();
		return false;
	}

	try
	{
		m_pDriver = 0;
		m_pConnection = 0;
		m_pStatement = 0;

		sql::ConnectOptionsMap connection_properties;
		connection_properties["hostName"]      = sql::SQLString(m_aIp);
		connection_properties["port"]          = m_Port;
		connection_properties["userName"]      = sql::SQLString(m_aUser);
		connection_properties["password"]      = sql::SQLString(m_aPass);
		connection_properties["OPT_CONNECT_TIMEOUT"] = 10;
		connection_properties["OPT_READ_TIMEOUT"] = 10;
		connection_properties["OPT_WRITE_TIMEOUT"] = 20;
		connection_properties["OPT_RECONNECT"] = true;
		connection_properties["OPT_CHARSET_NAME"] = sql::SQLString("utf8mb4");

		// Create connection
		m_pDriver = get_driver_instance();
		m_pConnection = m_pDriver->connect(connection_properties);

		// Create Statement
		m_pStatement = m_pConnection->createStatement();

		if (m_SetUpDB)
		{
			char aBuf[128];
			// create database
			str_format(aBuf, sizeof(aBuf), "CREATE DATABASE IF NOT EXISTS %s CHARACTER SET utf8mb4", m_aDatabase);
			m_pStatement->execute(aBuf);
		}

		// Connect to specific database
		m_pConnection->setSchema(m_aDatabase);
		dbg_msg("sql", "sql connection established");
		return true;
	}
	catch (sql::SQLException &e)
	{
		dbg_msg("sql", "MySQL Error: %s", e.what());
	}
	catch (const std::exception& ex)
	{
		dbg_msg("sql", "MySQL Error: %s", ex.what());
	}
	catch (const std::string& ex)
	{
		dbg_msg("sql", "MySQL Error: %s", ex.c_str());
	}
	catch (...)
	{
		dbg_msg("sql", "Unknown Error cause by the MySQL/C++ Connector");
	}

	dbg_msg("sql", "ERROR: sql connection failed");
	UnLock();
	return false;
}

void CSqlScore::ShowRankThread(void *pUser)
{
	lock_wait(gs_SqlLock);

	CSqlScoreData *pData = (CSqlScoreData *)pUser;

	// Connect to database
	if(pData->m_pSqlData->Connect())
	{
		try
		{
			// check strings
			char originalName[MAX_NAME_LENGTH];
			strcpy(originalName,pData->m_aName);
			pData->m_pSqlData->ClearString(pData->m_aName);

			// check sort methode
			char aBuf[600];

			pData->m_pSqlData->m_pStatement->execute("SET @rownum := 0;");
			str_format(aBuf, sizeof(aBuf), 	"SELECT Rank, one_rank.Name, one_rank.Time, UNIX_TIMESTAMP(CURRENT_TIMESTAMP)-UNIX_TIMESTAMP(r.Timestamp) as Ago, UNIX_TIMESTAMP(r.Timestamp) as stamp "
											"FROM ("
												"SELECT * FROM ("
													"SELECT @rownum := @rownum + 1 AS RANK, Name, Time "
													"FROM ("
														"SELECT Name, min(Time) as Time "
														"FROM %s_%s_race "
														"Group By Name) as all_top_times "
													"ORDER BY Time ASC) as all_ranks "
												"WHERE all_ranks.Name = '%s') as one_rank "
											"LEFT JOIN %s_%s_race as r "
											"ON one_rank.Name = r.Name && one_rank.Time = r.Time "
											"ORDER BY Ago ASC "
											"LIMIT 0,1"
											";", pData->m_pSqlData->m_pPrefix, pData->m_pSqlData->m_aMap,pData->m_aName, pData->m_pSqlData->m_pPrefix, pData->m_pSqlData->m_aMap);

			pData->m_pSqlData->m_pResults = pData->m_pSqlData->m_pStatement->executeQuery(aBuf);

			if(pData->m_pSqlData->m_pResults->rowsCount() != 1)
			{
				str_format(aBuf, sizeof(aBuf), "%s is not ranked", originalName);
				pData->m_pSqlData->GameServer()->SendChatTarget(pData->m_ClientID, aBuf);
			}
			else
			{
				pData->m_pSqlData->m_pResults->next();
				int since = (int)pData->m_pSqlData->m_pResults->getInt("Ago");
				char agoString[40];
				mem_zero(agoString, sizeof(agoString));
				agoTimeToString(since,agoString);

				float Time = (float)pData->m_pSqlData->m_pResults->getDouble("Time");
				int Rank = (int)pData->m_pSqlData->m_pResults->getInt("Rank");
				if(g_Config.m_SvHideScore)
					str_format(aBuf, sizeof(aBuf), "Your time: %d minute(s) %5.2f second(s)", (int)(Time/60), Time-((int)Time/60*60));
				else
					str_format(aBuf, sizeof(aBuf), "%d. %s Time: %d minute(s) %5.2f second(s)", Rank, pData->m_pSqlData->m_pResults->getString("Name").c_str(), (int)(Time/60), Time-((int)Time/60*60), agoString);

				if(pData->m_pSqlData->m_pResults->getInt("stamp") != 0){
					pData->m_pSqlData->GameServer()->SendChat(-1, CGameContext::CHAT_ALL, aBuf, pData->m_ClientID);
					str_format(aBuf, sizeof(aBuf), "Finished: %s ago", agoString);
				}
				if(pData->m_Search)
					strcat(aBuf, pData->m_aRequestingPlayer);
				pData->m_pSqlData->GameServer()->SendChat(-1, CGameContext::CHAT_ALL, aBuf, pData->m_ClientID);

			}

			dbg_msg("SQL", "Showing rank done");

			// delete results and statement
			delete pData->m_pSqlData->m_pResults;
			delete pData->m_pSqlData->m_pStatement;
		}
		catch (sql::SQLException &e)
		{
			char aBuf[256];
			str_format(aBuf, sizeof(aBuf), "MySQL Error: %s", e.what());
			dbg_msg("SQL", aBuf);
			dbg_msg("SQL", "ERROR: Could not show rank");
		}

		// disconnect from database
		pData->m_pSqlData->Disconnect();//TODO:Check if an exception is caught will this still execute ?
	}

	delete pData;

	lock_release(gs_SqlLock);
}

//.........这里部分代码省略.........
                    str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png000%i.png", aUserdir, PngCounter);
                if (PngCounter < 1000)
                    str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png00%i.png", aUserdir, PngCounter);
                if (PngCounter < 10000)
                    str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png0%i.png", aUserdir, PngCounter);
                if (PngCounter < 100000)
                    str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png%i.png", aUserdir, PngCounter);

                #if THREADCOUNT > 0
                CBlendThreadData *apBlendData[THREADCOUNT];
                for (int i = 0; i < THREADCOUNT; i++)
                {
                    apBlendData[i] = new CBlendThreadData();
                    mem_zero(apBlendData[i], sizeof(CBlendThreadData));
                    apBlendData[i]->m_pIn1 = pData;
                    apBlendData[i]->m_pIn2 = pDataOld;
                    apBlendData[i]->m_pOut = pDataMixed;
                    apBlendData[i]->m_Size = Size;
                    apBlendData[i]->m_Steps = THREADCOUNT;
                    apBlendData[i]->m_Start = i;
                    apBlendData[i]->m_Mix = 1.0f - (tAdj + FRAMETIMEHALF) / ((float)(t - tOld));
                    thread_detach(thread_create(BlendThread, apBlendData[i]));
                }
                while (1)
                {
                    bool Done = true;
                    for (int i = 0; i < THREADCOUNT; i++)
                    {
                        if (apBlendData[i]->m_Finished == false)
                        {
                            Done = false;
                            break;
                        }
                    }
                    if (THREADWAITDELAY)
                        thread_sleep(THREADWAITDELAY);
                    if (Done)
                        break;
                }
                #else
                for (int i = 0; i < Size; i++)
                {
                    pDataMixed[i] = mix(pData[i], pDataOld[i], 1.0f - (tAdj + FRAMETIMEHALF) / ((float)(t - tOld)));
                }
                #endif

                png_t Png;
                png_init(0,0);
                png_open_file_write(&Png, aBuf); // ignore_convention
                png_set_data(&Png, W, H, 8, PNG_TRUECOLOR, (unsigned char *)pDataMixed); // ignore_convention
                png_close_file(&Png); // ignore_convention

                if (time_get() - SpeedTime > time_freq())
                {
                    dbg_msg("Frame", "%i (Avg: %.2f s)", PngCounter, ((float)(time_get() - StartTime) / (float)time_freq()) / (float)PngCounter);
                    dbg_msg("FPS", "%.f", (float)PngCounter / ((float)(time_get() - StartTime) / (float)time_freq()));
                    SpeedTime = time_get();
                }

                tAdj = tAdj + FRAMETIME;
            }
        }
        else
        {
            PngCounter++;
            char aBuf[1024];
            if (PngCounter < 10)
                str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png0000%i.png", aUserdir, PngCounter);
            if (PngCounter < 100)
                str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png000%i.png", aUserdir, PngCounter);
            if (PngCounter < 1000)
                str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png00%i.png", aUserdir, PngCounter);
            if (PngCounter < 10000)
                str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png0%i.png", aUserdir, PngCounter);
            if (PngCounter < 100000)
                str_format(aBuf, sizeof(aBuf), "%s/tmp/pixelstream/png%i.png", aUserdir, PngCounter);

            png_t Png;
            png_init(0,0);
            png_open_file_write(&Png, aBuf); // ignore_convention
            png_set_data(&Png, W, H, 8, PNG_TRUECOLOR, (unsigned char *)pData); // ignore_convention
            png_close_file(&Png); // ignore_convention

            if (time_get() - SpeedTime > time_freq())
            {
                dbg_msg("Frame", "%i (Avg: %.2f s)", PngCounter, ((float)(time_get() - StartTime) / (float)time_freq()) / (float)PngCounter);
                dbg_msg("FPS", "%.f", (float)PngCounter / ((float)(time_get() - StartTime) / (float)time_freq()));
                SpeedTime = time_get();
            }

        }

        mem_copy(pDataOld, pData, Size);
        tOld = t;
    }
    delete[] pData;
    delete[] pDataOld;
    delete[] pDataMixed;
    return 0;
}

void CGraphics_Threaded::FlushVertices()
{
	if(m_NumVertices == 0)
		return;

	int NumVerts = m_NumVertices;
	m_NumVertices = 0;

	CCommandBuffer::SCommand_Render Cmd;
	Cmd.m_State = m_State;

	if(m_Drawing == DRAWING_QUADS)
	{
		if(g_Config.m_GfxQuadAsTriangle)
		{
			Cmd.m_PrimType = CCommandBuffer::PRIMTYPE_TRIANGLES;
			Cmd.m_PrimCount = NumVerts/3;
		}
		else
		{
			Cmd.m_PrimType = CCommandBuffer::PRIMTYPE_QUADS;
			Cmd.m_PrimCount = NumVerts/4;
		}
	}
	else if(m_Drawing == DRAWING_LINES)
	{
		Cmd.m_PrimType = CCommandBuffer::PRIMTYPE_LINES;
		Cmd.m_PrimCount = NumVerts/2;
	}
	else
		return;

	Cmd.m_pVertices = (CCommandBuffer::SVertex *)m_pCommandBuffer->AllocData(sizeof(CCommandBuffer::SVertex)*NumVerts);
	if(Cmd.m_pVertices == 0x0)
	{
		// kick command buffer and try again
		KickCommandBuffer();

		Cmd.m_pVertices = (CCommandBuffer::SVertex *)m_pCommandBuffer->AllocData(sizeof(CCommandBuffer::SVertex)*NumVerts);
		if(Cmd.m_pVertices == 0x0)
		{
			dbg_msg("graphics", "failed to allocate data for vertices");
			return;
		}
	}

	// check if we have enough free memory in the commandbuffer
	if(!m_pCommandBuffer->AddCommand(Cmd))
	{
		// kick command buffer and try again
		KickCommandBuffer();

		Cmd.m_pVertices = (CCommandBuffer::SVertex *)m_pCommandBuffer->AllocData(sizeof(CCommandBuffer::SVertex)*NumVerts);
		if(Cmd.m_pVertices == 0x0)
		{
			dbg_msg("graphics", "failed to allocate data for vertices");
			return;
		}

		if(!m_pCommandBuffer->AddCommand(Cmd))
		{
			dbg_msg("graphics", "failed to allocate memory for render command");
			return;
		}
	}

	mem_copy(Cmd.m_pVertices, m_aVertices, sizeof(CCommandBuffer::SVertex)*NumVerts);
}

int UnpackMessageID(int *pID, bool *pSys, struct CUuid *pUuid, CUnpacker *pUnpacker, CMsgPacker *pPacker)
{
	*pID = 0;
	*pSys = false;
	mem_zero(pUuid, sizeof(*pUuid));

	int MsgID = pUnpacker->GetInt();

	if(pUnpacker->Error())
	{
		return UNPACKMESSAGE_ERROR;
	}

	*pID = MsgID >> 1;
	*pSys = MsgID & 1;

	if(*pID < 0 || *pID >= OFFSET_UUID)
	{
		return UNPACKMESSAGE_ERROR;
	}

	if(*pID != 0) // NETMSG_EX, NETMSGTYPE_EX
	{
		return UNPACKMESSAGE_OK;
	}

	*pID = g_UuidManager.UnpackUuid(pUnpacker, pUuid);

	if(*pID == UUID_INVALID || *pID == UUID_UNKNOWN)
	{
		return UNPACKMESSAGE_ERROR;
	}

	if(*pSys)
	{
		switch(*pID)
		{
		case NETMSG_WHATIS:
			{
				CUuid Uuid2;
				int ID2 = g_UuidManager.UnpackUuid(pUnpacker, &Uuid2);
				if(ID2 == UUID_INVALID)
				{
					break;
				}
				if(ID2 == UUID_UNKNOWN)
				{
					new (pPacker) CMsgPacker(NETMSG_IDONTKNOW);
					pPacker->AddRaw(&Uuid2, sizeof(Uuid2));
				}
				else
				{
					new (pPacker) CMsgPacker(NETMSG_ITIS);
					pPacker->AddRaw(&Uuid2, sizeof(Uuid2));
					pPacker->AddString(g_UuidManager.GetName(ID2), 0);
				}
				return UNPACKMESSAGE_ANSWER;
			}
		case NETMSG_IDONTKNOW:
			if(g_Config.m_Debug)
			{
				CUuid Uuid2;
				g_UuidManager.UnpackUuid(pUnpacker, &Uuid2);
				if(pUnpacker->Error())
					break;
				char aBuf[UUID_MAXSTRSIZE];
				FormatUuid(Uuid2, aBuf, sizeof(aBuf));
				dbg_msg("uuid", "peer: unknown %s", aBuf);
			}
			break;
		case NETMSG_ITIS:
			if(g_Config.m_Debug)
			{
				CUuid Uuid2;
				g_UuidManager.UnpackUuid(pUnpacker, &Uuid2);
				const char *pName = pUnpacker->GetString(CUnpacker::SANITIZE_CC);
				if(pUnpacker->Error())
					break;
				char aBuf[UUID_MAXSTRSIZE];
				FormatUuid(Uuid2, aBuf, sizeof(aBuf));
				dbg_msg("uuid", "peer: %s %s", aBuf, pName);
			}
			break;
		}
	}
	return UNPACKMESSAGE_OK;
}

/**
 * read_znode - read an indexing node from flash and fill znode.
 * @c: UBIFS file-system description object
 * @lnum: LEB of the indexing node to read
 * @offs: node offset
 * @len: node length
 * @znode: znode to read to
 *
 * This function reads an indexing node from the flash media and fills znode
 * with the read data. Returns zero in case of success and a negative error
 * code in case of failure. The read indexing node is validated and if anything
 * is wrong with it, this function prints complaint messages and returns
 * %-EINVAL.
 */
static int read_znode(struct ubifs_info *c, int lnum, int offs, int len,
		      struct ubifs_znode *znode)
{
	int i, err, type, cmp;
	struct ubifs_idx_node *idx;

	idx = kmalloc(c->max_idx_node_sz, GFP_NOFS);
	if (!idx)
		return -ENOMEM;

	err = ubifs_read_node(c, idx, UBIFS_IDX_NODE, len, lnum, offs);
	if (err < 0) {
		kfree(idx);
		return err;
	}

	znode->child_cnt = le16_to_cpu(idx->child_cnt);
	znode->level = le16_to_cpu(idx->level);

	dbg_tnc("LEB %d:%d, level %d, %d branch",
		lnum, offs, znode->level, znode->child_cnt);

	if (znode->child_cnt > c->fanout || znode->level > UBIFS_MAX_LEVELS) {
		dbg_err("current fanout %d, branch count %d",
			c->fanout, znode->child_cnt);
		dbg_err("max levels %d, znode level %d",
			UBIFS_MAX_LEVELS, znode->level);
		err = 1;
		goto out_dump;
	}

	for (i = 0; i < znode->child_cnt; i++) {
		const struct ubifs_branch *br = ubifs_idx_branch(c, idx, i);
		struct ubifs_zbranch *zbr = &znode->zbranch[i];

		key_read(c, &br->key, &zbr->key);
		zbr->lnum = le32_to_cpu(br->lnum);
		zbr->offs = le32_to_cpu(br->offs);
		zbr->len  = le32_to_cpu(br->len);
		zbr->znode = NULL;

		/* Validate branch */

		if (zbr->lnum < c->main_first ||
		    zbr->lnum >= c->leb_cnt || zbr->offs < 0 ||
		    zbr->offs + zbr->len > c->leb_size || zbr->offs & 7) {
			dbg_err("bad branch %d", i);
			err = 2;
			goto out_dump;
		}

		switch (key_type(c, &zbr->key)) {
		case UBIFS_INO_KEY:
		case UBIFS_DATA_KEY:
		case UBIFS_DENT_KEY:
		case UBIFS_XENT_KEY:
			break;
		default:
			dbg_msg("bad key type at slot %d: %d",
				i, key_type(c, &zbr->key));
			err = 3;
			goto out_dump;
		}

		if (znode->level)
			continue;

		type = key_type(c, &zbr->key);
		if (c->ranges[type].max_len == 0) {
			if (zbr->len != c->ranges[type].len) {
				dbg_err("bad target node (type %d) length (%d)",
					type, zbr->len);
				dbg_err("have to be %d", c->ranges[type].len);
				err = 4;
				goto out_dump;
			}
		} else if (zbr->len < c->ranges[type].min_len ||
			   zbr->len > c->ranges[type].max_len) {
			dbg_err("bad target node (type %d) length (%d)",
				type, zbr->len);
			dbg_err("have to be in range of %d-%d",
				c->ranges[type].min_len,
				c->ranges[type].max_len);
			err = 5;
			goto out_dump;
		}
//.........这里部分代码省略.........

static void server_process_client_packet(NETCHUNK *packet)
{
	int cid = packet->client_id;
	NETADDR addr;
	
	int sys;
	int msg = msg_unpack_start(packet->data, packet->data_size, &sys);
	
	if(clients[cid].state == SRVCLIENT_STATE_AUTH)
	{
		if(sys && msg == NETMSG_INFO)
		{
			char version[64];
			const char *password;
			str_copy(version, msg_unpack_string(), 64);
			if(strcmp(version, mods_net_version()) != 0)
			{
				/* OH FUCK! wrong version, drop him */
				char reason[256];
				str_format(reason, sizeof(reason), "wrong version. server is running '%s' and client '%s'.", mods_net_version(), version);
				netserver_drop(net, cid, reason);
				return;
			}
			
			str_copy(clients[cid].name, msg_unpack_string(), MAX_NAME_LENGTH);
			str_copy(clients[cid].clan, msg_unpack_string(), MAX_CLANNAME_LENGTH);
			password = msg_unpack_string();
			
			if(config.password[0] != 0 && strcmp(config.password, password) != 0)
			{
				/* wrong password */
				netserver_drop(net, cid, "wrong password");
				return;
			}
			
			clients[cid].state = SRVCLIENT_STATE_CONNECTING;
			server_send_map(cid);
		}
	}
	else
	{
		if(sys)
		{
			/* system message */
			if(msg == NETMSG_REQUEST_MAP_DATA)
			{
				int chunk = msg_unpack_int();
				int chunk_size = 1024-128;
				int offset = chunk * chunk_size;
				int last = 0;
				
				/* drop faulty map data requests */
				if(chunk < 0 || offset > current_map_size)
					return;
				
				if(offset+chunk_size >= current_map_size)
				{
					chunk_size = current_map_size-offset;
					if(chunk_size < 0)
						chunk_size = 0;
					last = 1;
				}
				
				msg_pack_start_system(NETMSG_MAP_DATA, MSGFLAG_VITAL|MSGFLAG_FLUSH);
				msg_pack_int(last);
				msg_pack_int(current_map_size);
				msg_pack_int(chunk_size);
				msg_pack_raw(&current_map_data[offset], chunk_size);
				msg_pack_end();
				server_send_msg(cid);
				
				if(config.debug)
					dbg_msg("server", "sending chunk %d with size %d", chunk, chunk_size);
			}
			else if(msg == NETMSG_READY)
			{
				if(clients[cid].state == SRVCLIENT_STATE_CONNECTING)
				{
					netserver_client_addr(net, cid, &addr);
					
					dbg_msg("server", "player is ready. cid=%x ip=%d.%d.%d.%d",
						cid,
						addr.ip[0], addr.ip[1], addr.ip[2], addr.ip[3]
						);
					clients[cid].state = SRVCLIENT_STATE_READY;
					mods_connected(cid);
				}
			}
			else if(msg == NETMSG_ENTERGAME)
			{
				if(clients[cid].state == SRVCLIENT_STATE_READY)
				{
					netserver_client_addr(net, cid, &addr);
					
					dbg_msg("server", "player has entered the game. cid=%x ip=%d.%d.%d.%d",
						cid,
						addr.ip[0], addr.ip[1], addr.ip[2], addr.ip[3]
						);
					clients[cid].state = SRVCLIENT_STATE_INGAME;
					mods_client_enter(cid);
//.........这里部分代码省略.........

void Run(int Port, NETADDR Dest)
{
	NETADDR Src = {NETTYPE_IPV4, {0,0,0,0}, static_cast<unsigned short>(Port)};
	NETSOCKET Socket = net_udp_create(Src);

	char aBuffer[1024*2];
	int ID = 0;
	int Delaycounter = 0;

	while(1)
	{
		static int Lastcfg = 0;
		int n = ((time_get()/time_freq())/m_ConfigInterval) % m_ConfigNumpingconfs;
		CPingConfig Ping = m_aConfigPings[n];

		if(n != Lastcfg)
			dbg_msg("crapnet", "cfg = %d", n);
		Lastcfg = n;

		// handle incomming packets
		while(1)
		{
			// fetch data
			int DataTrash = 0;
			NETADDR From;
			int Bytes = net_udp_recv(Socket, &From, aBuffer, 1024*2);
			if(Bytes <= 0)
				break;

			if((rand()%100) < Ping.m_Loss) // drop the packet
			{
				if(m_ConfigLog)
					dbg_msg("crapnet", "dropped packet");
				continue;
			}

			// create new packet
			CPacket *p = (CPacket *)mem_alloc(sizeof(CPacket)+Bytes, 1);

			if(net_addr_comp(&From, &Dest) == 0)
				p->m_SendTo = Src; // from the server
			else
			{
				Src = From; // from the client
				p->m_SendTo = Dest;
			}

			// queue packet
			p->m_pPrev = m_pLast;
			p->m_pNext = 0;
			if(m_pLast)
				m_pLast->m_pNext = p;
			else
			{
				m_pFirst = p;
				m_pLast = p;
			}
			m_pLast = p;

			// set data in packet
			p->m_Timestamp = time_get();
			p->m_DataSize = Bytes;
			p->m_ID = ID++;
			mem_copy(p->m_aData, aBuffer, Bytes);

			if(ID > 20 && Bytes > 6 && DataTrash)
			{
				p->m_aData[6+(rand()%(Bytes-6))] = rand()&255; // modify a byte
				if((rand()%10) == 0)
				{
					p->m_DataSize -= rand()%32;
					if(p->m_DataSize < 6)
						p->m_DataSize = 6;
				}
			}

			if(Delaycounter <= 0)
			{
				if(Ping.m_Delay)
					p->m_Timestamp += (time_freq()*1000)/Ping.m_Delay;
				Delaycounter = Ping.m_DelayFreq;
			}
			Delaycounter--;

			if(m_ConfigLog)
			{
				char aAddrStr[NETADDR_MAXSTRSIZE];
				net_addr_str(&From, aAddrStr, sizeof(aAddrStr), true);
				dbg_msg("crapnet", "<< %08d %s (%d)", p->m_ID, aAddrStr, p->m_DataSize);
			}
		}

		//
		/*while(1)
		{*/
		CPacket *p = 0;
		CPacket *pNext = m_pFirst;
		while(1)
		{
			p = pNext;
//.........这里部分代码省略.........

bool CSqlScore::Connect()
{
	try
	{
		// Create connection
		m_pDriver = get_driver_instance();
		char aBuf[256];
		str_format(aBuf, sizeof(aBuf), "tcp://%s:%d", m_pIp, m_Port);
		m_pConnection = m_pDriver->connect(aBuf, m_pUser, m_pPass);

		// Create Statement
		m_pStatement = m_pConnection->createStatement();

		// Create database if not exists
		str_format(aBuf, sizeof(aBuf), "CREATE DATABASE IF NOT EXISTS %s", m_pDatabase);
		m_pStatement->execute(aBuf);

		// Connect to specific database
		m_pConnection->setSchema(m_pDatabase);
		dbg_msg("SQL", "SQL connection established");
		return true;
	}
	catch (sql::SQLException &e)
	{
		char aBuf[256];
		str_format(aBuf, sizeof(aBuf), "MySQL Error: %s", e.what());
		dbg_msg("SQL", aBuf);

		dbg_msg("SQL", "ERROR: SQL connection failed");
		return false;
	}
	catch (const std::exception& ex) {
		// ...
		dbg_msg("SQL", "1 %s",ex.what());

	} catch (const std::string& ex) {
		// ...
		dbg_msg("SQL", "2 %s",ex.c_str());
	}
	catch( int )
	{
	dbg_msg("SQL", "3 %s");
	}
	catch( float )
	{
	dbg_msg("SQL", "4 %s");
	}

	catch( char[] )
	{
	dbg_msg("SQL", "5 %s");
	}

	catch( char )
	{
	dbg_msg("SQL", "6 %s");
	}
	catch (...)
	{
		dbg_msg("SQL", "Unknown Error cause by the MySQL/C++ Connector, my advice compi