C++ DSTACK函数代码示例

void Client::ReceiveAll()
{
	DSTACK(__FUNCTION_NAME);
	for(;;)
	{
		try{
			Receive();
		}
		catch(con::NoIncomingDataException &e)
		{
			break;
		}
		catch(con::InvalidIncomingDataException &e)
		{
			infostream<<"Client::ReceiveAll(): "
					"InvalidIncomingDataException: what()="
					<<e.what()<<std::endl;
		}
	}
}

void run_tests()
{
	return; //j
	DSTACK(__FUNCTION_NAME);
	infostream<<"run_tests() started"<<std::endl;
	TEST(TestUtilities);
	TEST(TestSettings);
	TEST(TestCompress);
	TEST(TestMapNode);
	TEST(TestVoxelManipulator);
	//TEST(TestMapBlock);
	//TEST(TestMapSector);
	if(INTERNET_SIMULATOR == false){
		TEST(TestSocket);
		dout_con<<"=== BEGIN RUNNING UNIT TESTS FOR CONNECTION ==="<<std::endl;
		TEST(TestConnection);
		dout_con<<"=== END RUNNING UNIT TESTS FOR CONNECTION ==="<<std::endl;
	}
	infostream<<"run_tests() passed"<<std::endl;
}

void run_tests()
{
	DSTACK(__FUNCTION_NAME);

	u32 t1 = porting::getTime(PRECISION_MILLI);
	TestGameDef gamedef;

	log_set_lev_silence(LMT_ERROR, true);

	u32 num_modules_failed     = 0;
	u32 num_total_tests_failed = 0;
	u32 num_total_tests_run    = 0;
	std::vector<TestBase *> &testmods = TestManager::getTestModules();
	for (size_t i = 0; i != testmods.size(); i++) {
		if (!testmods[i]->testModule(&gamedef))
			num_modules_failed++;

		num_total_tests_failed += testmods[i]->num_tests_failed;
		num_total_tests_run += testmods[i]->num_tests_run;
	}

	u32 tdiff = porting::getTime(PRECISION_MILLI) - t1;

	log_set_lev_silence(LMT_ERROR, false);

	const char *overall_status = (num_modules_failed == 0) ? "PASSED" : "FAILED";

	dstream
		<< "++++++++++++++++++++++++++++++++++++++++"
		<< "++++++++++++++++++++++++++++++++++++++++" << std::endl
		<< "Unit Test Results: " << overall_status << std::endl
		<< "    " << num_modules_failed << " / " << testmods.size()
		<< " failed modules (" << num_total_tests_failed << " / "
		<< num_total_tests_run << " failed individual tests)." << std::endl
		<< "    Testing took " << tdiff << "ms total." << std::endl
		<< "++++++++++++++++++++++++++++++++++++++++"
		<< "++++++++++++++++++++++++++++++++++++++++" << std::endl;

	if (num_modules_failed)
		abort();
}

void Server::SendInventory(PlayerSAO* playerSAO)
{
	DSTACK(FUNCTION_NAME);

	UpdateCrafting(playerSAO->getPlayer());

	/*
		Serialize it
	*/

	std::ostringstream os;
	playerSAO->getInventory()->serialize(os);

	std::string s = os.str();

	MSGPACK_PACKET_INIT(TOCLIENT_INVENTORY, 1);
	PACK(TOCLIENT_INVENTORY_DATA, s);

	// Send as reliable
	m_clients.send(playerSAO->getPeerID(), 0, buffer, true);
}

MapSector * ClientMap::emergeSector(v2s16 p2d)
{
	DSTACK(__FUNCTION_NAME);
	// Check that it doesn't exist already
	try{
		return getSectorNoGenerate(p2d);
	}
	catch(InvalidPositionException &e)
	{
	}
	
	// Create a sector
	ClientMapSector *sector = new ClientMapSector(this, p2d, m_gamedef);
	
	{
		//JMutexAutoLock lock(m_sector_mutex); // Bulk comment-out
		m_sectors[p2d] = sector;
	}
	
	return sector;
}

/*
	peer_id=0 adds with nobody to send to
*/
void MeshUpdateQueue::addBlock(v3s16 p, MeshMakeData *data, bool ack_block_to_server, bool urgent)
{
	DSTACK(FUNCTION_NAME);

	assert(data);	// pre-condition

	MutexAutoLock lock(m_mutex);

	if(urgent)
		m_urgents.insert(p);

	/*
		Find if block is already in queue.
		If it is, update the data and quit.
	*/
	for(std::vector<QueuedMeshUpdate*>::iterator
			i = m_queue.begin();
			i != m_queue.end(); ++i)
	{
		QueuedMeshUpdate *q = *i;
		if(q->p == p)
		{
			if(q->data)
				delete q->data;
			q->data = data;
			if(ack_block_to_server)
				q->ack_block_to_server = true;
			return;
		}
	}

	/*
		Add the block
	*/
	QueuedMeshUpdate *q = new QueuedMeshUpdate;
	q->p = p;
	q->data = data;
	q->ack_block_to_server = ack_block_to_server;
	m_queue.push_back(q);
}

// Crafting helper
bool getCraftingResult(Inventory *inv, ItemStack& result,
		std::vector<ItemStack> &output_replacements,
		bool decrementInput, IGameDef *gamedef)
{
	DSTACK(__FUNCTION_NAME);
	
	result.clear();

	// Get the InventoryList in which we will operate
	InventoryList *clist = inv->getList("craft");
	if(!clist)
		return false;

	// Mangle crafting grid to an another format
	CraftInput ci;
	ci.method = CRAFT_METHOD_NORMAL;
	ci.width = clist->getWidth() ? clist->getWidth() : 3;
	for(u16 i=0; i<clist->getSize(); i++)
		ci.items.push_back(clist->getItem(i));

	// Find out what is crafted and add it to result item slot
	CraftOutput co;
	bool found = gamedef->getCraftDefManager()->getCraftResult(
			ci, co, output_replacements, decrementInput, gamedef);
	if(found)
		result.deSerialize(co.item, gamedef->getItemDefManager());

	if(found && decrementInput)
	{
		// CraftInput has been changed, apply changes in clist
		for(u16 i=0; i<clist->getSize(); i++)
		{
			clist->changeItem(i, ci.items[i]);
		}
	}

	return found;
}

void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
{
	DSTACK(__FUNCTION_NAME);

	clear();

	// Read name
	name = deSerializeJsonStringIfNeeded(is);

	// Skip space
	std::string tmp;
	std::getline(is, tmp, ' ');
	if(!tmp.empty())
		throw SerializationError("Unexpected text after item name");

	if(name == "MaterialItem")
	{
		// Obsoleted on 2011-07-30

		u16 material;
		is>>material;
		u16 materialcount;
		is>>materialcount;
		// Convert old materials
		if(material <= 0xff)
			material = content_translate_from_19_to_internal(material);
		if(material > 0xfff)
			throw SerializationError("Too large material number");
		// Convert old id to name
		NameIdMapping legacy_nimap;
		content_mapnode_get_name_id_mapping(&legacy_nimap);
		legacy_nimap.getName(material, name);
		if(name == "")
			name = "unknown_block";
		if (itemdef)
			name = itemdef->getAlias(name);
		count = materialcount;
	}

InventoryItem* InventoryItem::deSerialize(std::istream &is, IGameDef *gamedef)
{
	DSTACK(__FUNCTION_NAME);

	//is.imbue(std::locale("C"));
	// Read name
	std::string name;
	std::getline(is, name, ' ');
	
	if(name == "MaterialItem")
	{
		// u16 reads directly as a number (u8 doesn't)
		u16 material;
		is>>material;
		u16 count;
		is>>count;
		// Convert old materials
		if(material <= 0xff)
			material = content_translate_from_19_to_internal(material);
		if(material > MAX_CONTENT)
			throw SerializationError("Too large material number");
		return new MaterialItem(gamedef, material, count);
	}

content_t InventoryItem::info(std::istream &is, u16 *count, u16 *wear, u16 *data)
{
	DSTACK(__FUNCTION_NAME);

	content_t c = CONTENT_IGNORE;
	*count = 0;
	*wear = 0;
	*data = 0;

	//is.imbue(std::locale("C"));
	// Read name
	std::string name;
	std::getline(is, name, ' ');

	if (name == "MaterialItem") {
		// u16 reads directly as a number (u8 doesn't)
		u16 material;
		is>>material;
		is>>(*count);
		if (material > MAX_CONTENT)
			throw SerializationError("Too large material number");
		c = material;
	}else if(name == "MaterialItem2") {

int main(int argc, char *argv[])
{
	int retval;

	debug_set_exception_handler();

	log_add_output_maxlev(&main_stderr_log_out, LMT_ACTION);
	log_add_output_all_levs(&main_dstream_no_stderr_log_out);

	log_register_thread("main");

	Settings cmd_args;
	bool cmd_args_ok = get_cmdline_opts(argc, argv, &cmd_args);
	if (!cmd_args_ok
			|| cmd_args.getFlag("help")
			|| cmd_args.exists("nonopt1")) {
		print_help(allowed_options);
		return cmd_args_ok ? 0 : 1;
	}

	if (cmd_args.getFlag("version")) {
		print_version();
		return 0;
	}

	setup_log_params(cmd_args);

	porting::signal_handler_init();
	porting::initializePaths();

	if (!create_userdata_path()) {
		errorstream << "Cannot create user data directory" << std::endl;
		return 1;
	}

	// Initialize debug stacks
	debug_stacks_init();
	DSTACK(__FUNCTION_NAME);

	// Debug handler
	BEGIN_DEBUG_EXCEPTION_HANDLER

	// List gameids if requested
	if (cmd_args.exists("gameid") && cmd_args.get("gameid") == "list") {
		list_game_ids();
		return 0;
	}

	// List worlds if requested
	if (cmd_args.exists("world") && cmd_args.get("world") == "list") {
		list_worlds();
		return 0;
	}

	GameParams game_params;
	if (!init_common(&game_params.log_level, cmd_args, argc, argv))
		return 1;

#ifndef __ANDROID__
	// Run unit tests
	if (cmd_args.getFlag("run-unittests")) {
		run_tests();
		return 0;
	}
#endif

#ifdef SERVER
	game_params.is_dedicated_server = true;
#else
	game_params.is_dedicated_server = cmd_args.getFlag("server");
#endif

	if (!game_configure(&game_params, cmd_args))
		return 1;

	sanity_check(game_params.world_path != "");

	infostream << "Using commanded world path ["
	           << game_params.world_path << "]" << std::endl;

	//Run dedicated server if asked to or no other option
	g_settings->set("server_dedicated",
			game_params.is_dedicated_server ? "true" : "false");

	if (game_params.is_dedicated_server)
		return run_dedicated_server(game_params, cmd_args) ? 0 : 1;

#ifndef SERVER
	ClientLauncher launcher;
	retval = launcher.run(game_params, cmd_args) ? 0 : 1;
#else
	retval = 0;
#endif

	// Update configuration file
	if (g_settings_path != "")
		g_settings->updateConfigFile(g_settings_path.c_str());

	print_modified_quicktune_values();

//.........这里部分代码省略.........

void *EmergeThread::Thread() {
	ThreadStarted();
	log_register_thread("EmergeThread" + itos(id));
	DSTACK(__FUNCTION_NAME);
	BEGIN_DEBUG_EXCEPTION_HANDLER

	v3s16 last_tried_pos(-32768,-32768,-32768); // For error output
	v3s16 p;
	u8 flags = 0;

	map    = (ServerMap *)&(m_server->m_env->getMap());
	emerge = m_server->m_emerge;
	mapgen = emerge->mapgen[id];
	enable_mapgen_debug_info = emerge->mapgen_debug_info;

	porting::setThreadName("EmergeThread");

	while (!StopRequested())
	try {
		if (!popBlockEmerge(&p, &flags)) {
			qevent.wait();
			continue;
		}

		last_tried_pos = p;
		if (blockpos_over_limit(p))
			continue;

		bool allow_generate = flags & BLOCK_EMERGE_ALLOWGEN;
		EMERGE_DBG_OUT("p=" PP(p) " allow_generate=" << allow_generate);

		/*
			Try to fetch block from memory or disk.
			If not found and asked to generate, initialize generator.
		*/
		BlockMakeData data;
		MapBlock *block = NULL;
		std::map<v3s16, MapBlock *> modified_blocks;

		if (getBlockOrStartGen(p, &block, &data, allow_generate) && mapgen) {
			{
				ScopeProfiler sp(g_profiler, "EmergeThread: Mapgen::makeChunk", SPT_AVG);
				TimeTaker t("mapgen::make_block()");

				mapgen->makeChunk(&data);

				if (enable_mapgen_debug_info == false)
					t.stop(true); // Hide output
			}

			{
				//envlock: usually 0ms, but can take either 30 or 400ms to acquire
				JMutexAutoLock envlock(m_server->m_env_mutex);
				ScopeProfiler sp(g_profiler, "EmergeThread: after "
						"Mapgen::makeChunk (envlock)", SPT_AVG);

				map->finishBlockMake(&data, modified_blocks);

				block = map->getBlockNoCreateNoEx(p);
				if (block) {
					/*
						Do some post-generate stuff
					*/
					v3s16 minp = data.blockpos_min * MAP_BLOCKSIZE;
					v3s16 maxp = data.blockpos_max * MAP_BLOCKSIZE +
								 v3s16(1,1,1) * (MAP_BLOCKSIZE - 1);

					// Ignore map edit events, they will not need to be sent
					// to anybody because the block hasn't been sent to anybody
					MapEditEventAreaIgnorer
						ign(&m_server->m_ignore_map_edit_events_area,
						VoxelArea(minp, maxp));
					try {  // takes about 90ms with -O1 on an e3-1230v2
						m_server->getScriptIface()->environment_OnGenerated(
								minp, maxp, emerge->getBlockSeed(minp));
					} catch(LuaError &e) {
						m_server->setAsyncFatalError(e.what());
					}

					EMERGE_DBG_OUT("ended up with: " << analyze_block(block));

					m_server->m_env->activateBlock(block, 0);
				}
			}
		}

		/*
			Set sent status of modified blocks on clients
		*/
		// Add the originally fetched block to the modified list
		if (block)
			modified_blocks[p] = block;

		if (modified_blocks.size() > 0) {
			m_server->SetBlocksNotSent(modified_blocks);
		}
	}
	catch (VersionMismatchException &e) {
		std::ostringstream err;
		err << "World data version mismatch in MapBlock "<<PP(last_tried_pos)<<std::endl;
//.........这里部分代码省略.........

void *EmergeThread::run()
{
	DSTACK(FUNCTION_NAME);
	BEGIN_DEBUG_EXCEPTION_HANDLER

	v3s16 pos;

	m_map    = (ServerMap *)&(m_server->m_env->getMap());
	m_emerge = m_server->m_emerge;
	m_mapgen = m_emerge->m_mapgens[id];
	enable_mapgen_debug_info = m_emerge->enable_mapgen_debug_info;

	try {
	while (!stopRequested()) {
		std::map<v3s16, MapBlock *> modified_blocks;
		BlockEmergeData bedata;
		BlockMakeData bmdata;
		EmergeAction action;
		MapBlock *block;

		if (!popBlockEmerge(&pos, &bedata)) {
			m_queue_event.wait();
			continue;
		}

		if (blockpos_over_limit(pos))
			continue;

		bool allow_gen = bedata.flags & BLOCK_EMERGE_ALLOW_GEN;
		EMERGE_DBG_OUT("pos=" PP(pos) " allow_gen=" << allow_gen);

		action = getBlockOrStartGen(pos, allow_gen, &block, &bmdata);
		if (action == EMERGE_GENERATED) {
			{
				ScopeProfiler sp(g_profiler,
					"EmergeThread: Mapgen::makeChunk", SPT_AVG);
				TimeTaker t("mapgen::make_block()");

				m_mapgen->makeChunk(&bmdata);

				if (enable_mapgen_debug_info == false)
					t.stop(true); // Hide output
			}

			block = finishGen(pos, &bmdata, &modified_blocks);
		}

		runCompletionCallbacks(pos, action, bedata.callbacks);

		if (block)
			modified_blocks[pos] = block;

		if (modified_blocks.size() > 0)
			m_server->SetBlocksNotSent(modified_blocks);
	}
	} catch (VersionMismatchException &e) {
		std::ostringstream err;
		err << "World data version mismatch in MapBlock " << PP(pos) << std::endl
			<< "----" << std::endl
			<< "\"" << e.what() << "\"" << std::endl
			<< "See debug.txt." << std::endl
			<< "World probably saved by a newer version of " PROJECT_NAME_C "."
			<< std::endl;
		m_server->setAsyncFatalError(err.str());
	} catch (SerializationError &e) {
		std::ostringstream err;
		err << "Invalid data in MapBlock " << PP(pos) << std::endl
			<< "----" << std::endl
			<< "\"" << e.what() << "\"" << std::endl
			<< "See debug.txt." << std::endl
			<< "You can ignore this using [ignore_world_load_errors = true]."
			<< std::endl;
		m_server->setAsyncFatalError(err.str());
	}

	END_DEBUG_EXCEPTION_HANDLER
	return NULL;
}

void ClientMap::renderMap(video::IVideoDriver* driver, s32 pass)
{
    DSTACK(__FUNCTION_NAME);

    bool is_transparent_pass = pass == scene::ESNRP_TRANSPARENT;

    std::string prefix;
    if(pass == scene::ESNRP_SOLID)
        prefix = "CM: solid: ";
    else
        prefix = "CM: transparent: ";

    //ScopeProfiler sp(g_profiler, "CM::renderMap() " + prefix, SPT_AVG);

    /*
    	Get time for measuring timeout.

    	Measuring time is very useful for long delays when the
    	machine is swapping a lot.
    */
    //int time1 = time(0);

    /*
    	Get animation parameters
    */
    float animation_time = m_client->getAnimationTime();
    int crack = m_client->getCrackLevel();
    u32 daynight_ratio = m_client->getEnv().getDayNightRatio();

    m_camera_mutex.Lock();
    v3f camera_position = m_camera_position;
    f32 camera_fov = m_camera_fov * 1.1;
    m_camera_mutex.Unlock();

    /*
    	Get all blocks and draw all visible ones
    */

    v3s16 cam_pos_nodes = floatToInt(camera_position, BS);

    u32 vertex_count = 0;
    u32 meshbuffer_count = 0;

    // For limiting number of mesh animations per frame
    u32 mesh_animate_count = 0;
    u32 mesh_animate_count_far = 0;

    // Blocks that were drawn and had a mesh
    u32 blocks_drawn = 0;
    // Blocks which had a corresponding meshbuffer for this pass
    u32 blocks_had_pass_meshbuf = 0;
    // Blocks from which stuff was actually drawn
    u32 blocks_without_stuff = 0;

    /*
    	Draw the selected MapBlocks
    */

    {
        //ScopeProfiler sp(g_profiler, prefix+"drawing blocks", SPT_AVG);

        MeshBufListList drawbufs;
        std::vector<MapBlock::mesh_type> used_meshes; //keep shared_ptr
        auto drawlist = m_drawlist.load();
        auto lock = drawlist->lock_shared_rec();
        used_meshes.reserve(drawlist->size());
        //g_profiler->add("CM::renderMap()cnt"+ prefix, drawlist->size());
        for(auto & ir : *drawlist) {
            auto block = ir.second;

            int mesh_step = getFarmeshStep(m_control, getNodeBlockPos(cam_pos_nodes), block->getPos());
            // If the mesh of the block happened to get deleted, ignore it
            auto mapBlockMesh = block->getMesh(mesh_step);
            if (!mapBlockMesh)
                continue;

            float d = 0.0;
            if(isBlockInSight(block->getPos(), camera_position,
                              m_camera_direction, camera_fov,
                              100000*BS, &d) == false)
            {
                continue;
            }

            used_meshes.emplace_back(mapBlockMesh);

            // Mesh animation
            {
                //JMutexAutoLock lock(block->mesh_mutex);

                mapBlockMesh->updateCameraOffset(m_camera_offset);

                // Pretty random but this should work somewhat nicely
                bool faraway = d >= BS*50;
                //bool faraway = d >= m_control.wanted_range * BS;
                if(mapBlockMesh->isAnimationForced() ||
                        !faraway ||
                        mesh_animate_count_far < (m_control.range_all ? 200 : 50))
                {
                    bool animated = mapBlockMesh->animate(
//.........这里部分代码省略.........

/*****************************************************************************
 * Dedicated server
 *****************************************************************************/
static bool run_dedicated_server(const GameParams &game_params, const Settings &cmd_args)
{
	DSTACK("Dedicated server branch");

	verbosestream << _("Using world path") << " ["
	              << game_params.world_path << "]" << std::endl;
	verbosestream << _("Using gameid") << " ["
	              << game_params.game_spec.id << "]" << std::endl;

	// Bind address
	std::string bind_str = g_settings->get("bind_address");
	Address bind_addr(0, 0, 0, 0, game_params.socket_port);

	if (g_settings->getBool("ipv6_server")) {
		bind_addr.setAddress(in6addr_any);
	}
	try {
		if (!bind_str.empty())
		bind_addr.Resolve(bind_str.c_str());
	} catch (ResolveError &e) {
		infostream << "Resolving bind address \"" << bind_str
		           << "\" failed: " << e.what()
		           << " -- Listening on all addresses." << std::endl;
	}
	if (bind_addr.isIPv6() && !g_settings->getBool("enable_ipv6")) {
		errorstream << "Unable to listen on "
		            << bind_addr.serializeString()
		            << L" because IPv6 is disabled" << std::endl;
		return false;
	}

	// Database migration
	if (cmd_args.exists("migrate"))
		return migrate_database(game_params, cmd_args);

	if (cmd_args.exists("terminal")) {
#if USE_CURSES
		bool name_ok = true;
		std::string admin_nick = g_settings->get("name");

		name_ok = name_ok && !admin_nick.empty();
		name_ok = name_ok && string_allowed(admin_nick, PLAYERNAME_ALLOWED_CHARS);

		if (!name_ok) {
			if (admin_nick.empty()) {
				errorstream << "No name given for admin. "
					<< "Please check your minetest.conf that it "
					<< "contains a 'name = ' to your main admin account."
					<< std::endl;
			} else {
				errorstream << "Name for admin '"
					<< admin_nick << "' is not valid. "
					<< "Please check that it only contains allowed characters. "
					<< "Valid characters are: " << PLAYERNAME_ALLOWED_CHARS_USER_EXPL
					<< std::endl;
			}
			return false;
		}
		ChatInterface iface;
		bool &kill = *porting::signal_handler_killstatus();

		try {
			// Create server
			Server server(game_params.world_path,
				game_params.game_spec, false, bind_addr.isIPv6(), &iface);

			g_term_console.setup(&iface, &kill, admin_nick);

			g_term_console.start();

			server.start(bind_addr);
			// Run server
			dedicated_server_loop(server, kill);
		} catch (const ModError &e) {
			g_term_console.stopAndWaitforThread();
			errorstream << "ModError: " << e.what() << std::endl;
			return false;
		} catch (const ServerError &e) {
			g_term_console.stopAndWaitforThread();
			errorstream << "ServerError: " << e.what() << std::endl;
			return false;
		}

		// Tell the console to stop, and wait for it to finish,
		// only then leave context and free iface
		g_term_console.stop();
		g_term_console.wait();

		g_term_console.clearKillStatus();
	} else {
#else
		errorstream << "Cmd arg --terminal passed, but "
			<< "compiled without ncurses. Ignoring." << std::endl;
	} {
#endif
		try {

//.........这里部分代码省略.........