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Add emerge.cpp, initial EmergeThread changes

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- Neatly placed all emerge related code into a new file, emerge.cpp
- Greatly cleaned up the code in EmergeThread::Thread()
- Reworked Emerge queue.  Now an actual std::queue of v3s16 block positions
- Removed the completely unnecessary map of peer ids requesting blocks
This commit is contained in:
kwolekr 2013-02-13 22:43:15 -05:00
parent 6d0ea26c2d
commit b9d8e59bbf
12 changed files with 886 additions and 560 deletions
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1
src/CMakeLists.txt
View File

@ -209,6 +209,7 @@ set(common_SRCS
script.cpp
log.cpp
content_sao.cpp
emerge.cpp
mapgen.cpp
mapgen_v6.cpp
treegen.cpp

677
src/emerge.cpp Normal file
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@ -0,0 +1,677 @@
/*
Minetest-c55
Copyright (C) 2010-2011 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "server.h"
#include <iostream>
#include <queue>
#include "clientserver.h"
#include "map.h"
#include "jmutexautolock.h"
#include "main.h"
#include "constants.h"
#include "voxel.h"
#include "config.h"
#include "mapblock.h"
#include "serverobject.h"
#include "settings.h"
#include "script.h"
#include "scriptapi.h"
#include "profiler.h"
#include "log.h"
#include "nodedef.h"
#include "biome.h"
#include "emerge.h"
#include "mapgen_v6.h"
EmergeManager::EmergeManager(IGameDef *gamedef, BiomeDefManager *bdef) {
//register built-in mapgens
registerMapgen("v6", new MapgenFactoryV6());
this->biomedef = bdef ? bdef : new BiomeDefManager(gamedef);
this->params = NULL;
this->mapgen = NULL;
queuemutex.Init();
emergethread = new EmergeThread((Server *)gamedef);
}
EmergeManager::~EmergeManager() {
emergethread->setRun(false);
emergethread->stop();
delete emergethread;
delete biomedef;
delete mapgen;
delete params;
}
void EmergeManager::initMapgens(MapgenParams *mgparams) {
if (mapgen)
return;
this->params = mgparams;
this->mapgen = getMapgen(); //only one mapgen for now!
}
Mapgen *EmergeManager::getMapgen() {
if (!mapgen) {
mapgen = createMapgen(params->mg_name, 0, params, this);
if (!mapgen) {
infostream << "EmergeManager: falling back to mapgen v6" << std::endl;
delete params;
params = createMapgenParams("v6");
mapgen = createMapgen("v6", 0, params, this);
}
}
return mapgen;
}
bool EmergeManager::enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate) { ///return false if adding failed, or queue full!
u8 flags = 0;
if (allow_generate)
flags |= BLOCK_EMERGE_ALLOWGEN;
//TODO:
// add logic to select which emergethread to add it to
// - one with the least queue contents?
// - if a queue is too full, move onto another one
// - use the peer id sometime
{
JMutexAutoLock queuelock(queuemutex);
std::map<v3s16, u8>::const_iterator iter = blocks_enqueued.find(p);
if (iter != blocks_enqueued.end()) {
flags |= iter->second;
blocks_enqueued[p] = flags;
return true;
}
blocks_enqueued.insert(std::make_pair(p, flags));
emergethread->blockqueue.push(p);
}
emergethread->qevent.signal();
return true;
}
bool EmergeManager::popBlockEmerge(v3s16 *pos, u8 *flags) {
JMutexAutoLock queuelock(queuemutex);
if (emergethread->blockqueue.empty())
return false;
v3s16 p = emergethread->blockqueue.front();
emergethread->blockqueue.pop();
*pos = p;
std::map<v3s16, u8>::iterator iter = blocks_enqueued.find(p);
if (iter == blocks_enqueued.end()) //uh oh, this isn't right!!!!!!!!!!!!!!!!!!
return false;
*flags = iter->second;
blocks_enqueued.erase(iter);
return true;
}
int EmergeManager::getGroundLevelAtPoint(v2s16 p) {
if (!mapgen)
return 0;
return mapgen->getGroundLevelAtPoint(p);
}
bool EmergeManager::isBlockUnderground(v3s16 blockpos) {
/*
v2s16 p = v2s16((blockpos.X * MAP_BLOCKSIZE) + MAP_BLOCKSIZE / 2,
(blockpos.Y * MAP_BLOCKSIZE) + MAP_BLOCKSIZE / 2);
int ground_level = getGroundLevelAtPoint(p);
return blockpos.Y * (MAP_BLOCKSIZE + 1) <= min(water_level, ground_level);
*/
//yuck, but then again, should i bother being accurate?
//the height of the nodes in a single block is quite variable
return blockpos.Y * (MAP_BLOCKSIZE + 1) <= params->water_level;
}
u32 EmergeManager::getBlockSeed(v3s16 p) {
return (u32)(params->seed & 0xFFFFFFFF) +
p.Z * 38134234 +
p.Y * 42123 +
p.Y * 23;
}
Mapgen *EmergeManager::createMapgen(std::string mgname, int mgid,
MapgenParams *mgparams, EmergeManager *emerge) {
std::map<std::string, MapgenFactory *>::const_iterator iter = mglist.find(mgname);
if (iter == mglist.end()) {
errorstream << "EmergeManager; mapgen " << mgname <<
" not registered" << std::endl;
return NULL;
}
MapgenFactory *mgfactory = iter->second;
return mgfactory->createMapgen(mgid, mgparams, emerge);
}
MapgenParams *EmergeManager::createMapgenParams(std::string mgname) {
std::map<std::string, MapgenFactory *>::const_iterator iter = mglist.find(mgname);
if (iter == mglist.end()) {
errorstream << "EmergeManager: mapgen " << mgname <<
" not registered" << std::endl;
return NULL;
}
MapgenFactory *mgfactory = iter->second;
return mgfactory->createMapgenParams();
}
MapgenParams *EmergeManager::getParamsFromSettings(Settings *settings) {
std::string mg_name = settings->get("mg_name");
MapgenParams *mgparams = createMapgenParams(mg_name);
mgparams->mg_name = mg_name;
mgparams->seed = settings->getU64(settings == g_settings ? "fixed_map_seed" : "seed");
mgparams->water_level = settings->getS16("water_level");
mgparams->chunksize = settings->getS16("chunksize");
mgparams->flags = settings->getS32("mg_flags");
if (!mgparams->readParams(settings)) {
delete mgparams;
return NULL;
}
return mgparams;
}
void EmergeManager::setParamsToSettings(Settings *settings) {
settings->set("mg_name", params->mg_name);
settings->setU64("seed", params->seed);
settings->setS16("water_level", params->water_level);
settings->setS16("chunksize", params->chunksize);
settings->setFlagStr("mg_flags", params->flags, flagdesc_mapgen);
params->writeParams(settings);
}
bool EmergeManager::registerMapgen(std::string mgname, MapgenFactory *mgfactory) {
mglist.insert(std::make_pair(mgname, mgfactory));
infostream << "EmergeManager: registered mapgen " << mgname << std::endl;
}
class MapEditEventIgnorer
{
public:
MapEditEventIgnorer(bool *flag):
m_flag(flag)
{
if(*m_flag == false)
*m_flag = true;
else
m_flag = NULL;
}
~MapEditEventIgnorer()
{
if(m_flag)
{
assert(*m_flag);
*m_flag = false;
}
}
private:
bool *m_flag;
};
class MapEditEventAreaIgnorer
{
public:
MapEditEventAreaIgnorer(VoxelArea *ignorevariable, const VoxelArea &a):
m_ignorevariable(ignorevariable)
{
if(m_ignorevariable->getVolume() == 0)
*m_ignorevariable = a;
else
m_ignorevariable = NULL;
}
~MapEditEventAreaIgnorer()
{
if(m_ignorevariable)
{
assert(m_ignorevariable->getVolume() != 0);
*m_ignorevariable = VoxelArea();
}
}
private:
VoxelArea *m_ignorevariable;
};
#if 1
#define EMERGE_DBG_OUT(x) \
{ if (enable_mapgen_debug_info) \
infostream << "EmergeThread: " x << std::endl; }
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 could not load and allowed to generate,
// start generation inside this same envlock
if (allow_gen && (block == NULL || !block->isGenerated())) {
EMERGE_DBG_OUT("generating");
map->initBlockMake(data, p);
return true;
}
*b = block;
return false;
}
void *EmergeThread::Thread() {
ThreadStarted();
log_register_thread("EmergeThread");
DSTACK(__FUNCTION_NAME);
BEGIN_DEBUG_EXCEPTION_HANDLER
v3s16 last_tried_pos(-32768,-32768,-32768); // For error output
v3s16 p;
u8 flags;
map = (ServerMap *)&(m_server->m_env->getMap());
emerge = m_server->m_emerge;
mapgen = emerge->getMapgen();
while (getRun())
try {
while (!emerge->popBlockEmerge(&p, &flags))
qevent.wait();
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;
core::map<v3s16, MapBlock *> modified_blocks;
if (getBlockOrStartGen(p, &block, &data, allow_generate)) {
{
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::make_block (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));
{ // takes about 90ms with -O1 on an e3-1230v2
scriptapi_environment_on_generated(m_server->m_lua,
minp, maxp, emerge->getBlockSeed(minp));
}
EMERGE_DBG_OUT("ended up with: " << analyze_block(block));
m_server->m_env->activateBlock(block, 0);
}
}
}
/*
Set sent status of modified blocks on clients
*/
// NOTE: Server's clients are also behind the connection mutex
//conlock: consistently takes 30-40ms to acquire
JMutexAutoLock lock(m_server->m_con_mutex);
// Add the originally fetched block to the modified list
if (block)
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);
/*
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);
}
}
niters++;
}
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());
}
printf("emergethread iterated %d times\n", niters);
END_DEBUG_EXCEPTION_HANDLER(errorstream)
log_deregister_thread();
return NULL;
}
#endif

122
src/emerge.h Normal file
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@ -0,0 +1,122 @@
#ifndef EMERGE_HEADER
#define EMERGE_HEADER
#include <map>
#include <queue>
#include "util/thread.h"
#define BLOCK_EMERGE_ALLOWGEN (1<<0)
class Mapgen;
class MapgenParams;
class MapgenFactory;
class Biome;
class BiomeDefManager;
class EmergeThread;
class ManualMapVoxelManipulator;
//class ServerMap;
//class MapBlock;
#include "server.h"
struct BlockMakeData {
bool no_op;
ManualMapVoxelManipulator *vmanip;
u64 seed;
v3s16 blockpos_min;
v3s16 blockpos_max;
v3s16 blockpos_requested;
UniqueQueue<v3s16> transforming_liquid;
INodeDefManager *nodedef;
// BlockMakeData();
// ~BlockMakeData();
BlockMakeData():
no_op(false),
vmanip(NULL),
seed(0),
nodedef(NULL)
{}
~BlockMakeData()
{
delete vmanip;
}
};
class EmergeManager {
public:
std::map<std::string, MapgenFactory *> mglist;
//settings
MapgenParams *params;
JMutex queuemutex;
std::map<v3s16, u8> blocks_enqueued; //change to a hashtable later
Mapgen *mapgen;
EmergeThread *emergethread;
//biome manager
BiomeDefManager *biomedef;
EmergeManager(IGameDef *gamedef, BiomeDefManager *bdef);
~EmergeManager();
void initMapgens(MapgenParams *mgparams);
Mapgen *createMapgen(std::string mgname, int mgid,
MapgenParams *mgparams, EmergeManager *emerge);
MapgenParams *createMapgenParams(std::string mgname);
Mapgen *getMapgen();
bool enqueueBlockEmerge(u16 peer_id, v3s16 p, bool allow_generate);
bool popBlockEmerge(v3s16 *pos, u8 *flags);
bool registerMapgen(std::string name, MapgenFactory *mgfactory);
MapgenParams *getParamsFromSettings(Settings *settings);
void setParamsToSettings(Settings *settings);
//mapgen helper methods
Biome *getBiomeAtPoint(v3s16 p);
int getGroundLevelAtPoint(v2s16 p);
bool isBlockUnderground(v3s16 blockpos);
u32 getBlockSeed(v3s16 p);
};
class EmergeThread : public SimpleThread
{
Server *m_server;
ServerMap *map;
EmergeManager *emerge;
Mapgen *mapgen;
bool enable_mapgen_debug_info;
public:
Event qevent;
std::queue<v3s16> blockqueue;
EmergeThread(Server *server):
SimpleThread(),
m_server(server),
map(NULL),
emerge(NULL),
mapgen(NULL)
{
enable_mapgen_debug_info = g_settings->getBool("enable_mapgen_debug_info");
}
void *Thread();
void trigger()
{
setRun(true);
if(IsRunning() == false)
{
Start();
}
}
bool getBlockOrStartGen(v3s16 p, MapBlock **b,
BlockMakeData *data, bool allow_generate);
};
#endif

1
src/environment.h
View File

@ -40,7 +40,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapnode.h"
#include "mapblock.h"
class Server;
class ServerEnvironment;
class ActiveBlockModifier;
class ServerActiveObject;

50
src/jthread/jmutex.h
View File

@ -67,4 +67,54 @@ private:
bool initialized;
};
#ifdef _WIN32
class Event {
HANDLE hEvent;
public:
Event() {
hEvent = CreateEvent(NULL, 0, 0, NULL);
}
~Event() {
CloseHandle(hEvent);
}
void wait() {
WaitForSingleObject(hEvent, INFINITE);
}
void signal() {
SetEvent(hEvent);
}
}
#else
#include <semaphore.h>
class Event {
sem_t sem;
public:
Event() {
sem_init(&sem, 0, 0);
}
~Event() {
sem_destroy(&sem);
}
void wait() {
sem_wait(&sem);
}
void signal() {
sem_post(&sem);
}
};
#endif
#endif // JMUTEX_H

1
src/map.cpp
View File

@ -33,6 +33,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "gamedef.h"
#include "util/directiontables.h"
#include "rollback_interface.h"
#include "emerge.h"
#include "mapgen_v6.h"
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"

4
src/map.h
View File

@ -46,6 +46,8 @@ class MapBlock;
class NodeMetadata;
class IGameDef;
class IRollbackReportSink;
class EmergeManager;
class BlockMakeData;
/*
@ -378,7 +380,7 @@ public:
Blocks are generated by using these and makeBlock().
*/
void initBlockMake(BlockMakeData *data, v3s16 blockpos);
MapBlock* finishBlockMake(BlockMakeData *data,
MapBlock *finishBlockMake(BlockMakeData *data,
core::map<v3s16, MapBlock*> &changed_blocks);
// A non-threaded wrapper to the above - DEFUNCT

153
src/mapgen.cpp
View File

@ -46,144 +46,6 @@ FlagDesc flagdesc_mapgen[] = {
};
///////////////////////////////////////////////////////////////////////////////
/////////////////////////////// Emerge Manager ////////////////////////////////
EmergeManager::EmergeManager(IGameDef *gamedef, BiomeDefManager *bdef) {
//register built-in mapgens
registerMapgen("v6", new MapgenFactoryV6());
//the order of these assignments is pretty important
this->biomedef = bdef ? bdef : new BiomeDefManager(gamedef);
this->params = NULL;
this->mapgen = NULL;
}
EmergeManager::~EmergeManager() {
delete biomedef;
delete mapgen;
delete params;
}
void EmergeManager::initMapgens(MapgenParams *mgparams) {
if (mapgen)
return;
this->params = mgparams;
this->mapgen = getMapgen(); //only one mapgen for now!
}
Mapgen *EmergeManager::getMapgen() {
if (!mapgen) {
mapgen = createMapgen(params->mg_name, 0, params, this);
if (!mapgen) {
infostream << "EmergeManager: falling back to mapgen v6" << std::endl;
delete params;
params = createMapgenParams("v6");
mapgen = createMapgen("v6", 0, params, this);
}
}
return mapgen;
}
void EmergeManager::addBlockToQueue() {
//STUB
}
int EmergeManager::getGroundLevelAtPoint(v2s16 p) {
if (!mapgen)
return 0;
return mapgen->getGroundLevelAtPoint(p);
}
bool EmergeManager::isBlockUnderground(v3s16 blockpos) {
/*
v2s16 p = v2s16((blockpos.X * MAP_BLOCKSIZE) + MAP_BLOCKSIZE / 2,
(blockpos.Y * MAP_BLOCKSIZE) + MAP_BLOCKSIZE / 2);
int ground_level = getGroundLevelAtPoint(p);
return blockpos.Y * (MAP_BLOCKSIZE + 1) <= min(water_level, ground_level);
*/
//yuck, but then again, should i bother being accurate?
//the height of the nodes in a single block is quite variable
return blockpos.Y * (MAP_BLOCKSIZE + 1) <= params->water_level;
}
u32 EmergeManager::getBlockSeed(v3s16 p) {
return (u32)(params->seed & 0xFFFFFFFF) +
p.Z * 38134234 +
p.Y * 42123 +
p.Y * 23;
}
Mapgen *EmergeManager::createMapgen(std::string mgname, int mgid,
MapgenParams *mgparams, EmergeManager *emerge) {
std::map<std::string, MapgenFactory *>::const_iterator iter = mglist.find(mgname);
if (iter == mglist.end()) {
errorstream << "EmergeManager; mapgen " << mgname <<
" not registered" << std::endl;
return NULL;
}
MapgenFactory *mgfactory = iter->second;
return mgfactory->createMapgen(mgid, mgparams, emerge);
}
MapgenParams *EmergeManager::createMapgenParams(std::string mgname) {
std::map<std::string, MapgenFactory *>::const_iterator iter = mglist.find(mgname);
if (iter == mglist.end()) {
errorstream << "EmergeManager: mapgen " << mgname <<
" not registered" << std::endl;
return NULL;
}
MapgenFactory *mgfactory = iter->second;
return mgfactory->createMapgenParams();
}
MapgenParams *EmergeManager::getParamsFromSettings(Settings *settings) {
std::string mg_name = settings->get("mg_name");
MapgenParams *mgparams = createMapgenParams(mg_name);
mgparams->mg_name = mg_name;
mgparams->seed = settings->getU64(settings == g_settings ? "fixed_map_seed" : "seed");
mgparams->water_level = settings->getS16("water_level");
mgparams->chunksize = settings->getS16("chunksize");
mgparams->flags = settings->getFlagStr("mg_flags", flagdesc_mapgen);
if (!mgparams->readParams(settings)) {
delete mgparams;
return NULL;
}
return mgparams;
}
void EmergeManager::setParamsToSettings(Settings *settings) {
settings->set("mg_name", params->mg_name);
settings->setU64("seed", params->seed);
settings->setS16("water_level", params->water_level);
settings->setS16("chunksize", params->chunksize);
settings->setFlagStr("mg_flags", params->flags, flagdesc_mapgen);
params->writeParams(settings);
}
void EmergeManager::registerMapgen(std::string mgname, MapgenFactory *mgfactory) {
mglist.insert(std::make_pair(mgname, mgfactory));
infostream << "EmergeManager: registered mapgen " << mgname << std::endl;
}
/////////////////////
@ -2986,18 +2848,3 @@ void make_block(BlockMakeData *data)
#endif ///BIG COMMENT
BlockMakeData::BlockMakeData():
no_op(false),
vmanip(NULL),
seed(0),
nodedef(NULL)
{}
BlockMakeData::~BlockMakeData()
{
delete vmanip;
}
//}; // namespace mapgen

52
src/mapgen.h
View File

@ -26,6 +26,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "mapnode.h"
#include "noise.h"
#include "settings.h"
//#include "emerge.h"
#include <map>
/////////////////// Mapgen flags
@ -36,6 +37,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#define MGV6_BIOME_BLEND 0x10
#define MG_FLAT 0x20
extern FlagDesc flagdesc_mapgen[];
class BiomeDefManager;
class Biome;
class EmergeManager;
@ -43,20 +46,7 @@ class MapBlock;
class ManualMapVoxelManipulator;
class VoxelManipulator;
class INodeDefManager;
struct BlockMakeData {
bool no_op;
ManualMapVoxelManipulator *vmanip;
u64 seed;
v3s16 blockpos_min;
v3s16 blockpos_max;
v3s16 blockpos_requested;
UniqueQueue<v3s16> transforming_liquid;
INodeDefManager *nodedef;
BlockMakeData();
~BlockMakeData();
};
class BlockMakeData;
struct MapgenParams {
std::string mg_name;
@ -99,39 +89,5 @@ struct MapgenFactory {
virtual MapgenParams *createMapgenParams() = 0;
};
class EmergeManager {
public:
std::map<std::string, MapgenFactory *> mglist;
//settings
MapgenParams *params;
//mapgen objects here
Mapgen *mapgen;
//biome manager
BiomeDefManager *biomedef;
EmergeManager(IGameDef *gamedef, BiomeDefManager *bdef);
~EmergeManager();
void initMapgens(MapgenParams *mgparams);
Mapgen *createMapgen(std::string mgname, int mgid,
MapgenParams *mgparams, EmergeManager *emerge);
MapgenParams *createMapgenParams(std::string mgname);
Mapgen *getMapgen();
void addBlockToQueue();
void registerMapgen(std::string name, MapgenFactory *mgfactory);
MapgenParams *getParamsFromSettings(Settings *settings);
void setParamsToSettings(Settings *settings);
//mapgen helper methods
Biome *getBiomeAtPoint(v3s16 p);
int getGroundLevelAtPoint(v2s16 p);
bool isBlockUnderground(v3s16 blockpos);
u32 getBlockSeed(v3s16 p);
};
#endif

1
src/mapgen_v6.cpp
View File

@ -31,6 +31,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "profiler.h"
#include "settings.h" // For g_settings
#include "main.h" // For g_profiler
#include "emerge.h"
#include "mapgen_v6.h"
/////////////////// Mapgen V6 perlin noise default values

345
src/server.cpp
View File

@ -38,6 +38,7 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "nodedef.h"
#include "itemdef.h"
#include "craftdef.h"
#include "emerge.h"
#include "mapgen.h"
#include "biome.h"
#include "content_mapnode.h"
@ -58,60 +59,6 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "rollback.h"
#include "util/serialize.h"
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
#define BLOCK_EMERGE_FLAG_FROMDISK (1<<0)
class MapEditEventIgnorer
{
public:
MapEditEventIgnorer(bool *flag):
m_flag(flag)
{
if(*m_flag == false)
*m_flag = true;
else
m_flag = NULL;
}
~MapEditEventIgnorer()
{
if(m_flag)
{
assert(*m_flag);
*m_flag = false;
}
}
private:
bool *m_flag;
};
class MapEditEventAreaIgnorer
{
public:
MapEditEventAreaIgnorer(VoxelArea *ignorevariable, const VoxelArea &a):
m_ignorevariable(ignorevariable)
{
if(m_ignorevariable->getVolume() == 0)
*m_ignorevariable = a;
else
m_ignorevariable = NULL;
}
~MapEditEventAreaIgnorer()
{
if(m_ignorevariable)
{
assert(m_ignorevariable->getVolume() != 0);
*m_ignorevariable = VoxelArea();
}
}
private:
VoxelArea *m_ignorevariable;
};
void * ServerThread::Thread()
{
ThreadStarted();
@ -157,265 +104,6 @@ void * ServerThread::Thread()
return NULL;
}
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();
/*
Get block info from queue, emerge them and send them
to clients.
After queue is empty, exit.
*/
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->peer_ids.getIterator(); i.atEnd()==false; i++)
{
//u16 peer_id = i.getNode()->getKey();
// Check flags
u8 flags = i.getNode()->getValue();
if((flags & BLOCK_EMERGE_FLAG_FROMDISK) == false)
only_from_disk = false;
}
}
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);
//mapgen::make_block(&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
*/
//MapEditEventIgnorer ign(&m_server->m_ignore_map_edit_events);
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);
}
/*
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;
}
v3f ServerSoundParams::getPos(ServerEnvironment *env, bool *pos_exists) const
{
if(pos_exists) *pos_exists = false;
@ -770,7 +458,7 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
*/
if(block == NULL || surely_not_found_on_disk || block_is_invalid)
{
//TODO: Get value from somewhere
/* //TODO: Get value from somewhere
// Allow only one block in emerge queue
//if(server->m_emerge_queue.peerItemCount(peer_id) < 1)
// Allow two blocks in queue per client
@ -799,6 +487,16 @@ void RemoteClient::GetNextBlocks(Server *server, float dtime,
nearest_emergefull_d = d;
goto queue_full_break;
}
*/
if (server->m_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;
@ -953,7 +651,7 @@ Server::Server(
m_craftdef(createCraftDefManager()),
m_event(new EventManager()),
m_thread(this),
m_emergethread(this),
//m_emergethread(this),
m_time_of_day_send_timer(0),
m_uptime(0),
m_shutdown_requested(false),
@ -1278,9 +976,9 @@ void Server::stop()
// Stop threads (set run=false first so both start stopping)
m_thread.setRun(false);
m_emergethread.setRun(false);
//m_emergethread.setRun(false);
m_thread.stop();
m_emergethread.stop();
//m_emergethread.stop();
infostream<<"Server: Threads stopped"<<std::endl;
}
@ -1951,7 +1649,7 @@ void Server::AsyncRunStep()
{
counter = 0.0;
m_emergethread.trigger();
m_emerge->emergethread->trigger();
// Update m_enable_rollback_recording here too
m_enable_rollback_recording =
@ -3115,8 +2813,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
infostream<<"Server: Not punching: Node not found."
<<" Adding block to emerge queue."
<<std::endl;
m_emerge_queue.addBlock(peer_id,
getNodeBlockPos(p_above), BLOCK_EMERGE_FLAG_FROMDISK);
m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
}
if(n.getContent() != CONTENT_IGNORE)
scriptapi_node_on_punch(m_lua, p_under, n, playersao);
@ -3172,8 +2869,7 @@ void Server::ProcessData(u8 *data, u32 datasize, u16 peer_id)
infostream<<"Server: Not finishing digging: Node not found."
<<" Adding block to emerge queue."
<<std::endl;
m_emerge_queue.addBlock(peer_id,
getNodeBlockPos(p_above), BLOCK_EMERGE_FLAG_FROMDISK);
m_emerge->enqueueBlockEmerge(peer_id, getNodeBlockPos(p_above), false);
}
/* Cheat prevention */
@ -4728,10 +4424,7 @@ void Server::notifyPlayers(const std::wstring msg)
void Server::queueBlockEmerge(v3s16 blockpos, bool allow_generate)
{
u8 flags = 0;
if(!allow_generate)
flags |= BLOCK_EMERGE_FLAG_FROMDISK;
m_emerge_queue.addBlock(PEER_ID_INEXISTENT, blockpos, flags);
m_emerge->enqueueBlockEmerge(PEER_ID_INEXISTENT, blockpos, allow_generate);
}
Inventory* Server::createDetachedInventory(const std::string &name)

39
src/server.h
View File

@ -39,6 +39,8 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "rollback_interface.h" // Needed for rollbackRevertActions()
#include <list> // Needed for rollbackRevertActions()
#define PP(x) "("<<(x).X<<","<<(x).Y<<","<<(x).Z<<")"
struct LuaState;
typedef struct lua_State lua_State;
class IWritableItemDefManager;
@ -47,6 +49,7 @@ class IWritableCraftDefManager;
class EventManager;
class PlayerSAO;
class IRollbackManager;
class EmergeManager;
class ServerError : public std::exception
{
@ -120,11 +123,9 @@ public:
If it is, update the peer to it and quit.
*/
core::list<QueuedBlockEmerge*>::Iterator i;
for(i=m_queue.begin(); i!=m_queue.end(); i++)
{
for(i=m_queue.begin(); i!=m_queue.end(); i++) {
QueuedBlockEmerge *q = *i;
if(q->pos == pos)
{
if (q->pos == pos) {
q->peer_ids[peer_id] = flags;
return;
}
@ -136,7 +137,7 @@ public:
*/
QueuedBlockEmerge *q = new QueuedBlockEmerge;
q->pos = pos;
if(peer_id != 0)
if (peer_id != 0)
q->peer_ids[peer_id] = flags;
m_queue.push_back(q);
}
@ -200,30 +201,6 @@ public:
void * Thread();
};
class EmergeThread : public SimpleThread
{
Server *m_server;
public:
EmergeThread(Server *server):
SimpleThread(),
m_server(server)
{
}
void * Thread();
void trigger()
{
setRun(true);
if(IsRunning() == false)
{
Start();
}
}
};
struct PlayerInfo
{
u16 id;
@ -785,9 +762,9 @@ private:
// The server mainly operates in this thread
ServerThread m_thread;
// This thread fetches and generates map
EmergeThread m_emergethread;
//EmergeThread m_emergethread;
// Queue of block coordinates to be processed by the emerge thread
BlockEmergeQueue m_emerge_queue;
//BlockEmergeQueue m_emerge_queue;
/*
Time related stuff