- modified_blocks.insert(p, block);
-
- // Set the modified blocks unsent for all the clients
- for (core::map<u16, RemoteClient*>::Iterator
- i = m_server->m_clients.getIterator();
- i.atEnd() == false; i++) {
- RemoteClient *client = i.getNode()->getValue();
- if (modified_blocks.size() > 0) {
- // Remove block from sent history
- client->SetBlocksNotSent(modified_blocks);
- }
- }
- }
- catch (VersionMismatchException &e) {
- std::ostringstream err;
- err << "World data version mismatch in MapBlock "<<PP(last_tried_pos)<<std::endl;
- err << "----"<<std::endl;
- err << "\""<<e.what()<<"\""<<std::endl;
- err << "See debug.txt."<<std::endl;
- err << "World probably saved by a newer version of Minetest."<<std::endl;
- m_server->setAsyncFatalError(err.str());
- }
- catch (SerializationError &e) {
- std::ostringstream err;
- err << "Invalid data in MapBlock "<<PP(last_tried_pos)<<std::endl;
- err << "----"<<std::endl;
- err << "\""<<e.what()<<"\""<<std::endl;
- err << "See debug.txt."<<std::endl;
- err << "You can ignore this using [ignore_world_load_errors = true]."<<std::endl;
- m_server->setAsyncFatalError(err.str());
- }
-
- END_DEBUG_EXCEPTION_HANDLER(errorstream)
- log_deregister_thread();
- return NULL;
-}
-
-#else
-
-void *EmergeThread::Thread() {
- ThreadStarted();
- log_register_thread("EmergeThread");
- DSTACK(__FUNCTION_NAME);
- BEGIN_DEBUG_EXCEPTION_HANDLER
-
- bool enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
-
- v3s16 last_tried_pos(-32768,-32768,-32768); // For error output
- ServerMap &map = ((ServerMap&)m_server->m_env->getMap());
- EmergeManager *emerge = m_server->m_emerge;
- Mapgen *mapgen = emerge->getMapgen();
-
- while(getRun())
- try {
- QueuedBlockEmerge *qptr = m_server->m_emerge_queue.pop();
- if(qptr == NULL)
- break;
- SharedPtr<QueuedBlockEmerge> q(qptr);
-
- v3s16 &p = q->pos;
- v2s16 p2d(p.X,p.Z);
-
- last_tried_pos = p;
-
- /*
- Do not generate over-limit
- */
- if (blockpos_over_limit(p))
- continue;
-
- //infostream<<"EmergeThread::Thread(): running"<<std::endl;
-
- //TimeTaker timer("block emerge");
-
- /*
- Try to emerge it from somewhere.
-
- If it is only wanted as optional, only loading from disk
- will be allowed.
- */
-
- /*
- Check if any peer wants it as non-optional. In that case it
- will be generated.
-
- Also decrement the emerge queue count in clients.
- */
-
- bool only_from_disk = true;
- {
- core::map<u16, u8>::Iterator i;
- for (i=q->s.getIterator(); !i.atEnd(); i++) {
- u8 flags = i.getNode()->getValue();
- if (!(flags & BLOCK_EMERGE_FLAG_FROMDISK)) {
- only_from_disk = false;
- break;
- }
- }
- }
-
- if (enable_mapgen_debug_info)
- infostream<<"EmergeThread: p="
- <<"("<<p.X<<","<<p.Y<<","<<p.Z<<") "
- <<"only_from_disk="<<only_from_disk<<std::endl;
-
- MapBlock *block = NULL;
- bool got_block = true;
- core::map<v3s16, MapBlock*> modified_blocks;
-
- /*
- Try to fetch block from memory or disk.
- If not found and asked to generate, initialize generator.
- */
-
- bool started_generate = false;
- BlockMakeData data;
- {
- JMutexAutoLock envlock(m_server->m_env_mutex);
-
- // Load sector if it isn't loaded
- if(map.getSectorNoGenerateNoEx(p2d) == NULL)
- map.loadSectorMeta(p2d);
-
- // Attempt to load block
- block = map.getBlockNoCreateNoEx(p);
- if(!block || block->isDummy() || !block->isGenerated()) {
- if(enable_mapgen_debug_info)
- infostream<<"EmergeThread: not in memory, "
- <<"attempting to load from disk"<<std::endl;
-
- block = map.loadBlock(p);
- }
-
- // If could not load and allowed to generate, start generation
- // inside this same envlock
- if(only_from_disk == false &&
- (block == NULL || block->isGenerated() == false)){
- if(enable_mapgen_debug_info)
- infostream<<"EmergeThread: generating"<<std::endl;
- started_generate = true;
-
- map.initBlockMake(&data, p);
- }
- }
-
- /*
- If generator was initialized, generate now when envlock is free.
- */
- if(started_generate) {
- {
- ScopeProfiler sp(g_profiler, "EmergeThread: mapgen::make_block",
- SPT_AVG);
- TimeTaker t("mapgen::make_block()");
-
- mapgen->makeChunk(&data);
-
- if (enable_mapgen_debug_info == false)
- t.stop(true); // Hide output
- }
-
- do{ // enable break
- // Lock environment again to access the map
- JMutexAutoLock envlock(m_server->m_env_mutex);
-
- ScopeProfiler sp(g_profiler, "EmergeThread: after "
- "mapgen::make_block (envlock)", SPT_AVG);
-
- // Blit data back on map, update lighting, add mobs and
- // whatever this does
- map.finishBlockMake(&data, modified_blocks);
-
- // Get central block
- block = map.getBlockNoCreateNoEx(p);
-
- // If block doesn't exist, don't try doing anything with it
- // This happens if the block is not in generation boundaries
- if(!block)
- break;
-
- /*
- 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));
- {
- TimeTaker timer("on_generated");
- scriptapi_environment_on_generated(m_server->m_lua,
- minp, maxp, emerge->getBlockSeed(minp));
- //int t = timer.stop(true);
- //dstream<<"on_generated took "<<t<<"ms"<<std::endl;
- }
-
- if (enable_mapgen_debug_info)
- infostream << "EmergeThread: ended up with: "
- << analyze_block(block) << std::endl;
-
- // Activate objects and stuff
- m_server->m_env->activateBlock(block, 0);
- }while(false);
- }
-
- if(block == NULL)
- got_block = false;
-
- /*
- Set sent status of modified blocks on clients
- */
-
- // NOTE: Server's clients are also behind the connection mutex
- JMutexAutoLock lock(m_server->m_con_mutex);
-
- /*
- Add the originally fetched block to the modified list
- */
- if(got_block)
- modified_blocks.insert(p, block);