bool EmergeThread::getBlockOrStartGen(v3s16 p, MapBlock **b, BlockMakeData *data, bool allow_gen) { v2s16 p2d(p.X, p.Z); //envlock: usually takes <=1ms, sometimes 90ms or ~400ms to acquire 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 MapBlock *block = map->getBlockNoCreateNoEx(p); if (!block || block->isDummy() || !block->isGenerated()) { EMERGE_DBG_OUT("not in memory, attempting to load from disk"); block = map->loadBlock(p); if (block && block->isGenerated()) map->prepareBlock(block); } // If could not load and allowed to generate, // start generation inside this same envlock if (allow_gen && (block == NULL || !block->isGenerated())) { EMERGE_DBG_OUT("generating"); *b = block; return map->initBlockMake(data, p); } *b = block; return false; }
bool EmergeThread::getBlockOrStartGen(v3s16 p, MapBlock **b, BlockMakeData *data, bool allow_gen) { //envlock: usually takes <=1ms, sometimes 90ms or ~400ms to acquire //JMutexAutoLock envlock(m_server->m_env_mutex); // Attempt to load block MapBlock *block = map->getBlockNoCreateNoEx(p); if (!block || block->isDummy()) { EMERGE_DBG_OUT("not in memory, attempting to load from disk ag="<<allow_gen<<" block="<<block<<" p="<<p); block = map->loadBlock(p); if(block) { // block->pushElementsToCircuit(m_circuit); // m_circuit->processElementsQueue(*map, map->getNodeDefManager()); } if (block && block->isGenerated()) map->prepareBlock(block); } // If could not load and allowed to generate, // start generation inside this same envlock if (allow_gen && (!block)) { EMERGE_DBG_OUT("generating b="<<block); *b = block; return map->initBlockMake(data, p); } *b = block; return false; }
bool EmergeThread::getBlockOrStartGen(v3s16 p, MapBlock **b, BlockMakeData *data, bool allow_gen) { #if !ENABLE_THREADS auto lock = map->m_nothread_locker.lock_unique_rec(); #endif MapBlock *block; { //envlock: usually takes <=1ms, sometimes 90ms or ~400ms to acquire //JMutexAutoLock envlock(m_server->m_env_mutex); // Attempt to load block block = map->getBlockNoCreateNoEx(p); if (!block || block->isDummy()) { EMERGE_DBG_OUT("not in memory, attempting to load from disk ag="<<allow_gen<<" block="<<block<<" p="<<p); block = map->loadBlock(p); if (block && block->isGenerated()) map->prepareBlock(block); } } // If could not load and allowed to generate, // start generation inside this same envlock if (allow_gen && (!block)) { EMERGE_DBG_OUT("generating b="<<block); *b = block; return map->initBlockMake(data, p); } *b = block; return false; }
void RemoteClient::GetNextBlocks ( ServerEnvironment *env, EmergeManager * emerge, float dtime, std::vector<PrioritySortedBlockTransfer> &dest) { DSTACK(FUNCTION_NAME); // Increment timers m_nothing_to_send_pause_timer -= dtime; m_nearest_unsent_reset_timer += dtime; if(m_nothing_to_send_pause_timer >= 0) return; RemotePlayer *player = env->getPlayer(peer_id); // This can happen sometimes; clients and players are not in perfect sync. if (!player) return; PlayerSAO *sao = player->getPlayerSAO(); if (!sao) return; // Won't send anything if already sending if(m_blocks_sending.size() >= g_settings->getU16 ("max_simultaneous_block_sends_per_client")) { //infostream<<"Not sending any blocks, Queue full."<<std::endl; return; } v3f playerpos = sao->getBasePosition(); const v3f &playerspeed = player->getSpeed(); v3f playerspeeddir(0,0,0); if(playerspeed.getLength() > 1.0*BS) playerspeeddir = playerspeed / playerspeed.getLength(); // Predict to next block v3f playerpos_predicted = playerpos + playerspeeddir*MAP_BLOCKSIZE*BS; v3s16 center_nodepos = floatToInt(playerpos_predicted, BS); v3s16 center = getNodeBlockPos(center_nodepos); // Camera position and direction v3f camera_pos = sao->getEyePosition(); v3f camera_dir = v3f(0,0,1); camera_dir.rotateYZBy(sao->getPitch()); camera_dir.rotateXZBy(sao->getYaw()); /*infostream<<"camera_dir=("<<camera_dir.X<<","<<camera_dir.Y<<"," <<camera_dir.Z<<")"<<std::endl;*/ /* Get the starting value of the block finder radius. */ if(m_last_center != center) { m_nearest_unsent_d = 0; m_last_center = center; } /*infostream<<"m_nearest_unsent_reset_timer=" <<m_nearest_unsent_reset_timer<<std::endl;*/ // Reset periodically to workaround for some bugs or stuff if(m_nearest_unsent_reset_timer > 20.0) { m_nearest_unsent_reset_timer = 0; m_nearest_unsent_d = 0; //infostream<<"Resetting m_nearest_unsent_d for " // <<server->getPlayerName(peer_id)<<std::endl; } //s16 last_nearest_unsent_d = m_nearest_unsent_d; s16 d_start = m_nearest_unsent_d; //infostream<<"d_start="<<d_start<<std::endl; u16 max_simul_sends_setting = g_settings->getU16 ("max_simultaneous_block_sends_per_client"); u16 max_simul_sends_usually = max_simul_sends_setting; /* Check the time from last addNode/removeNode. Decrease send rate if player is building stuff. */ m_time_from_building += dtime; if(m_time_from_building < g_settings->getFloat( "full_block_send_enable_min_time_from_building")) { max_simul_sends_usually = LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS; } /* Number of blocks sending + number of blocks selected for sending */ u32 num_blocks_selected = m_blocks_sending.size(); /* next time d will be continued from the d from which the nearest unsent block was found this time. This is because not necessarily any of the blocks found this time are actually sent. */ s32 new_nearest_unsent_d = -1; // get view range and camera fov from the client s16 wanted_range = sao->getWantedRange(); float camera_fov = sao->getFov(); // if FOV, wanted_range are not available (old client), fall back to old default if (wanted_range <= 0) wanted_range = 1000; if (camera_fov <= 0) camera_fov = (72.0*M_PI/180) * 4./3.; const s16 full_d_max = MYMIN(g_settings->getS16("max_block_send_distance"), wanted_range); const s16 d_opt = MYMIN(g_settings->getS16("block_send_optimize_distance"), wanted_range); const s16 d_blocks_in_sight = full_d_max * BS * MAP_BLOCKSIZE; //infostream << "Fov from client " << camera_fov << " full_d_max " << full_d_max << std::endl; s16 d_max = full_d_max; s16 d_max_gen = MYMIN(g_settings->getS16("max_block_generate_distance"), wanted_range); // Don't loop very much at a time s16 max_d_increment_at_time = 2; if(d_max > d_start + max_d_increment_at_time) d_max = d_start + max_d_increment_at_time; s32 nearest_emerged_d = -1; s32 nearest_emergefull_d = -1; s32 nearest_sent_d = -1; //bool queue_is_full = false; const v3s16 cam_pos_nodes = floatToInt(camera_pos, BS); const bool occ_cull = g_settings->getBool("server_side_occlusion_culling"); s16 d; for(d = d_start; d <= d_max; d++) { /* Get the border/face dot coordinates of a "d-radiused" box */ std::vector<v3s16> list = FacePositionCache::getFacePositions(d); std::vector<v3s16>::iterator li; for(li = list.begin(); li != list.end(); ++li) { v3s16 p = *li + center; /* Send throttling - Don't allow too many simultaneous transfers - EXCEPT when the blocks are very close Also, don't send blocks that are already flying. */ // Start with the usual maximum u16 max_simul_dynamic = max_simul_sends_usually; // If block is very close, allow full maximum if(d <= BLOCK_SEND_DISABLE_LIMITS_MAX_D) max_simul_dynamic = max_simul_sends_setting; // Don't select too many blocks for sending if (num_blocks_selected >= max_simul_dynamic) { //queue_is_full = true; goto queue_full_break; } // Don't send blocks that are currently being transferred if (m_blocks_sending.find(p) != m_blocks_sending.end()) continue; /* Do not go over max mapgen limit */ if (blockpos_over_max_limit(p)) continue; // If this is true, inexistent block will be made from scratch bool generate = d <= d_max_gen; /* Don't generate or send if not in sight FIXME This only works if the client uses a small enough FOV setting. The default of 72 degrees is fine. */ f32 dist; if (!isBlockInSight(p, camera_pos, camera_dir, camera_fov, d_blocks_in_sight, &dist)) { continue; } /* Don't send already sent blocks */ { if(m_blocks_sent.find(p) != m_blocks_sent.end()) { continue; } } /* Check if map has this block */ MapBlock *block = env->getMap().getBlockNoCreateNoEx(p); bool surely_not_found_on_disk = false; bool block_is_invalid = false; if (block) { // Reset usage timer, this block will be of use in the future. block->resetUsageTimer(); // Block is dummy if data doesn't exist. // It means it has been not found from disk and not generated if (block->isDummy()) { surely_not_found_on_disk = true; } if (!block->isGenerated()) block_is_invalid = true; /* If block is not close, don't send it unless it is near ground level. Block is near ground level if night-time mesh differs from day-time mesh. */ if (d >= d_opt) { if (!block->getDayNightDiff()) continue; } if (occ_cull && !block_is_invalid && env->getMap().isBlockOccluded(block, cam_pos_nodes)) { continue; } } /* If block has been marked to not exist on disk (dummy) and generating new ones is not wanted, skip block. */ if (!generate && surely_not_found_on_disk) { // get next one. continue; } /* Add inexistent block to emerge queue. */ if(block == NULL || surely_not_found_on_disk || block_is_invalid) { if (emerge->enqueueBlockEmerge(peer_id, p, generate)) { if (nearest_emerged_d == -1) nearest_emerged_d = d; } else { if (nearest_emergefull_d == -1) nearest_emergefull_d = d; goto queue_full_break; } // get next one. continue; } if(nearest_sent_d == -1) nearest_sent_d = d; /* Add block to send queue */ PrioritySortedBlockTransfer q((float)dist, p, peer_id); dest.push_back(q); num_blocks_selected += 1; } } queue_full_break: // If nothing was found for sending and nothing was queued for // emerging, continue next time browsing from here if(nearest_emerged_d != -1){ new_nearest_unsent_d = nearest_emerged_d; } else if(nearest_emergefull_d != -1){ new_nearest_unsent_d = nearest_emergefull_d; } else { if(d > full_d_max){ new_nearest_unsent_d = 0; m_nothing_to_send_pause_timer = 2.0; } else { if(nearest_sent_d != -1) new_nearest_unsent_d = nearest_sent_d; else new_nearest_unsent_d = d; } } if(new_nearest_unsent_d != -1) m_nearest_unsent_d = new_nearest_unsent_d; }
int RemoteClient::GetNextBlocks( ServerEnvironment *env, EmergeManager * emerge, float dtime, double m_uptime, std::vector<PrioritySortedBlockTransfer> &dest) { DSTACK(__FUNCTION_NAME); // Increment timers m_nothing_to_send_pause_timer -= dtime; m_nearest_unsent_reset_timer += dtime; if(m_nothing_to_send_pause_timer >= 0) return 0; Player *player = env->getPlayer(peer_id); // This can happen sometimes; clients and players are not in perfect sync. if(player == NULL) return 0; v3f playerpos = player->getPosition(); v3f playerspeed = player->getSpeed(); if(playerspeed.getLength() > 1000.0*BS) //cheater or bug, ignore him return 0; v3f playerspeeddir(0,0,0); if(playerspeed.getLength() > 1.0*BS) playerspeeddir = playerspeed / playerspeed.getLength(); // Predict to next block v3f playerpos_predicted = playerpos + playerspeeddir*MAP_BLOCKSIZE*BS; v3s16 center_nodepos = floatToInt(playerpos_predicted, BS); v3s16 center = getNodeBlockPos(center_nodepos); // Camera position and direction v3f camera_pos = player->getEyePosition(); v3f camera_dir = v3f(0,0,1); camera_dir.rotateYZBy(player->getPitch()); camera_dir.rotateXZBy(player->getYaw()); /*infostream<<"camera_dir=("<<camera_dir.X<<","<<camera_dir.Y<<"," <<camera_dir.Z<<")"<<std::endl;*/ /* Get the starting value of the block finder radius. */ if(m_last_center != center) { m_nearest_unsent_d = 0; m_last_center = center; } /*infostream<<"m_nearest_unsent_reset_timer=" <<m_nearest_unsent_reset_timer<<std::endl;*/ // Reset periodically to workaround for some bugs or stuff if(m_nearest_unsent_reset_timer > 120.0) { m_nearest_unsent_reset_timer = 0; m_nearest_unsent_d = 0; m_nearest_unsent_nearest = 0; //infostream<<"Resetting m_nearest_unsent_d for "<<peer_id<<std::endl; } //s16 last_nearest_unsent_d = m_nearest_unsent_d; s16 d_start = m_nearest_unsent_d; //infostream<<"d_start="<<d_start<<std::endl; u16 max_simul_sends_setting = g_settings->getU16 ("max_simultaneous_block_sends_per_client"); u16 max_simul_sends_usually = max_simul_sends_setting; /* Check the time from last addNode/removeNode. Decrease send rate if player is building stuff. */ m_time_from_building += dtime; if(m_time_from_building < g_settings->getFloat( "full_block_send_enable_min_time_from_building")) { max_simul_sends_usually = LIMITED_MAX_SIMULTANEOUS_BLOCK_SENDS; } /* Number of blocks sending + number of blocks selected for sending */ u32 num_blocks_selected = 0; u32 num_blocks_sending = 0; /* next time d will be continued from the d from which the nearest unsent block was found this time. This is because not necessarily any of the blocks found this time are actually sent. */ s32 new_nearest_unsent_d = -1; s16 full_d_max = g_settings->getS16("max_block_send_distance"); if (wanted_range) { s16 wanted_blocks = wanted_range / MAP_BLOCKSIZE + 1; if (wanted_blocks < full_d_max) full_d_max = wanted_blocks; } s16 d_max = full_d_max; s16 d_max_gen = g_settings->getS16("max_block_generate_distance"); // Don't loop very much at a time s16 max_d_increment_at_time = 5; if(d_max > d_start + max_d_increment_at_time) d_max = d_start + max_d_increment_at_time; /*if(d_max_gen > d_start+2) d_max_gen = d_start+2;*/ //infostream<<"Starting from "<<d_start<<std::endl; s32 nearest_emerged_d = -1; s32 nearest_emergefull_d = -1; s32 nearest_sent_d = -1; bool queue_is_full = false; f32 speed_in_blocks = (playerspeed/(MAP_BLOCKSIZE*BS)).getLength(); s16 d; for(d = d_start; d <= d_max; d++) { /*errorstream<<"checking d="<<d<<" for " <<server->getPlayerName(peer_id)<<std::endl;*/ //infostream<<"RemoteClient::SendBlocks(): d="<<d<<" d_start="<<d_start<<" d_max="<<d_max<<" d_max_gen="<<d_max_gen<<std::endl; /* If m_nearest_unsent_d was changed by the EmergeThread (it can change it to 0 through SetBlockNotSent), update our d to it. Else update m_nearest_unsent_d */ /*if(m_nearest_unsent_d != last_nearest_unsent_d) { d = m_nearest_unsent_d; last_nearest_unsent_d = m_nearest_unsent_d; }*/ std::list<v3s16> list; bool can_skip = d > 1; // Fast fall/move optimize. speed_in_blocks now limited to 6.4 if (speed_in_blocks>0.8 && d <= 2) { can_skip = false; if (d == 0) { for(s16 addn = 0; addn < (speed_in_blocks+1)*2; ++addn) list.push_back(floatToInt(playerspeeddir*addn, 1)); } else if (d == 1) { for(s16 addn = 0; addn < (speed_in_blocks+1)*1.5; ++addn) { list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( 0, 0, 1)); // back list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( -1, 0, 0)); // left list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( 1, 0, 0)); // right list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( 0, 0, -1)); // front } } else if (d == 2) { for(s16 addn = 0; addn < (speed_in_blocks+1)*1.5; ++addn) { list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( -1, 0, 1)); // back left list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( 1, 0, 1)); // left right list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( -1, 0, -1)); // right left list.push_back(floatToInt(playerspeeddir*addn, 1) + v3s16( 1, 0, -1)); // front right } } } else { /* Get the border/face dot coordinates of a "d-radiused" box */ getFacePositions(list, d); } std::list<v3s16>::iterator li; for(li=list.begin(); li!=list.end(); ++li) { v3s16 p = *li + center; /* Send throttling - Don't allow too many simultaneous transfers - EXCEPT when the blocks are very close Also, don't send blocks that are already flying. */ // Start with the usual maximum u16 max_simul_dynamic = max_simul_sends_usually; // If block is very close, allow full maximum if(d <= BLOCK_SEND_DISABLE_LIMITS_MAX_D) max_simul_dynamic = max_simul_sends_setting; // Don't select too many blocks for sending if(num_blocks_selected+num_blocks_sending >= max_simul_dynamic) { queue_is_full = true; goto queue_full_break; } /* Do not go over-limit */ if(p.X < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE || p.X > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE || p.Y < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE || p.Y > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE || p.Z < -MAP_GENERATION_LIMIT / MAP_BLOCKSIZE || p.Z > MAP_GENERATION_LIMIT / MAP_BLOCKSIZE) continue; // If this is true, inexistent block will be made from scratch bool generate = d <= d_max_gen; { /*// Limit the generating area vertically to 2/3 if(abs(p.Y - center.Y) > d_max_gen - d_max_gen / 3) generate = false;*/ /* maybe good idea (if not use block culling) but brokes far (25+) area generate by flooding emergequeue with no generate blocks // Limit the send area vertically to 1/2 if(can_skip && abs(p.Y - center.Y) > full_d_max / 2) generate = false; */ } //infostream<<"d="<<d<<std::endl; /* Don't generate or send if not in sight FIXME This only works if the client uses a small enough FOV setting. The default of 72 degrees is fine. */ float camera_fov = (80.0*M_PI/180) * 4./3.; if(can_skip && isBlockInSight(p, camera_pos, camera_dir, camera_fov, 10000*BS) == false) { continue; } /* Don't send already sent blocks */ { if(m_blocks_sent.find(p) != m_blocks_sent.end() && m_blocks_sent[p] > 0 && m_blocks_sent[p] + (d <= 2 ? 1 : d*d*d) > m_uptime) { continue; } } /* Check if map has this block */ MapBlock *block = env->getMap().getBlockNoCreateNoEx(p); bool surely_not_found_on_disk = false; bool block_is_invalid = false; if(block != NULL) { if (m_blocks_sent[p] > 0 && m_blocks_sent[p] >= block->m_changed_timestamp) { continue; } // Reset usage timer, this block will be of use in the future. block->resetUsageTimer(); // Block is dummy if data doesn't exist. // It means it has been not found from disk and not generated if(block->isDummy()) { surely_not_found_on_disk = true; } if (block->getLightingExpired()) { continue; } // Block is valid if lighting is up-to-date and data exists if(block->isValid() == false) { block_is_invalid = true; } if(block->isGenerated() == false) { continue; } /* If block is not close, don't send it unless it is near ground level. Block is near ground level if night-time mesh differs from day-time mesh. */ /* if(d >= 4) { if(block->getDayNightDiff() == false) continue; } */ } /* If block has been marked to not exist on disk (dummy) and generating new ones is not wanted, skip block. */ if(generate == false && surely_not_found_on_disk == true) { // get next one. continue; } /* Add inexistent block to emerge queue. */ if(block == NULL || surely_not_found_on_disk || block_is_invalid) { //infostream<<"start gen d="<<d<<" p="<<p<<" notfound="<<surely_not_found_on_disk<<" invalid="<< block_is_invalid<<" block="<<block<<" generate="<<generate<<std::endl; if (emerge->enqueueBlockEmerge(peer_id, p, generate)) { if (nearest_emerged_d == -1) nearest_emerged_d = d; } else { if (nearest_emergefull_d == -1) nearest_emergefull_d = d; goto queue_full_break; } // get next one. continue; } if(nearest_sent_d == -1) nearest_sent_d = d; /* Add block to send queue */ PrioritySortedBlockTransfer q((float)d, p, peer_id); dest.push_back(q); num_blocks_selected += 1; } } queue_full_break: //infostream<<"Stopped at "<<d<<" d_start="<<d_start<< " d_max="<<d_max<<" nearest_emerged_d="<<nearest_emerged_d<<" nearest_emergefull_d="<<nearest_emergefull_d<< " new_nearest_unsent_d="<<new_nearest_unsent_d<< " sel="<<num_blocks_selected<< "+"<<num_blocks_sending <<std::endl; num_blocks_selected += num_blocks_sending; if(!num_blocks_selected && d_start == d) { //new_nearest_unsent_d = 0; m_nothing_to_send_pause_timer = 1.0; } // If nothing was found for sending and nothing was queued for // emerging, continue next time browsing from here if(nearest_emerged_d != -1){ new_nearest_unsent_d = nearest_emerged_d; } else if(nearest_emergefull_d != -1){ new_nearest_unsent_d = nearest_emergefull_d; } else { if(d > full_d_max){ new_nearest_unsent_d = 0; m_nothing_to_send_pause_timer = 2.0; } else { if(nearest_sent_d != -1) new_nearest_unsent_d = nearest_sent_d; else new_nearest_unsent_d = d; } } if(new_nearest_unsent_d != -1) m_nearest_unsent_d = new_nearest_unsent_d; return num_blocks_selected - num_blocks_sending; }