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;
}
MapBlock *EmergeThread::finishGen(v3s16 pos, BlockMakeData *bmdata,
std::map<v3s16, MapBlock *> *modified_blocks)
{
//MutexAutoLock envlock(m_server->m_env_mutex);
ScopeProfiler sp(g_profiler,
"EmergeThread: after Mapgen::makeChunk", SPT_AVG);
/*
Perform post-processing on blocks (invalidate lighting, queue liquid
transforms, etc.) to finish block make
*/
m_map->finishBlockMake(bmdata, modified_blocks);
MapBlock *block = m_map->getBlockNoCreateNoEx(pos, false, true);
if (!block) {
errorstream << "EmergeThread::finishGen: Couldn't grab block we "
"just generated: " << PP(pos) << std::endl;
return NULL;
}
v3s16 minp = bmdata->blockpos_min * MAP_BLOCKSIZE;
v3s16 maxp = bmdata->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
/* thread unsafe
MapEditEventAreaIgnorer ign(
&m_server->m_ignore_map_edit_events_area,
VoxelArea(minp, maxp));
*/
/*
Run Lua on_generated callbacks
*/
try {
MAP_NOTHREAD_LOCK(m_map);
m_server->getScriptIface()->environment_OnGenerated(
minp, maxp, m_mapgen->blockseed);
} catch (LuaError &e) {
m_server->setAsyncFatalError("Lua: " + std::string(e.what()));
}
EMERGE_DBG_OUT("ended up with: " << analyze_block(block));
/*
Activate the block
*/
m_server->m_env->activateBlock(block, 0);
return block;
}
EmergeAction EmergeThread::getBlockOrStartGen(
v3s16 pos, bool allow_gen, MapBlock **block, BlockMakeData *bmdata)
{
//MutexAutoLock envlock(m_server->m_env_mutex);
{
MAP_NOTHREAD_LOCK(m_map);
// 1). Attempt to fetch block from memory
*block = m_map->getBlockNoCreateNoEx(pos, false, true);
}
if (*block && !(*block)->isDummy() && (*block)->isGenerated())
return EMERGE_FROM_MEMORY;
{
MAP_NOTHREAD_LOCK(m_map);
// 2). Attempt to load block from disk
*block = m_map->loadBlock(pos);
}
if (*block && (*block)->isGenerated())
{
MAP_NOTHREAD_LOCK(m_map);
m_map->prepareBlock(*block);
return EMERGE_FROM_DISK;
}
{
MAP_NOTHREAD_LOCK(m_map);
// 3). Attempt to start generation
if (allow_gen && m_map->initBlockMake(pos, bmdata))
return EMERGE_GENERATED;
}
/*
verbosestream << "EmergeThread::getBlockOrStartGen : cancel pos=" << pos << " block="<< *block;
if (*block)
verbosestream << "dummy=" << (*block)->isDummy() << " generated="<< (*block)->isGenerated();
verbosestream << std::endl;
*/
// All attempts failed; cancel this block emerge
return EMERGE_CANCELLED;
}
EmergeAction EmergeThread::getBlockOrStartGen(
v3s16 pos, bool allow_gen, MapBlock **block, BlockMakeData *bmdata)
{
MutexAutoLock envlock(m_server->m_env_mutex);
// 1). Attempt to fetch block from memory
*block = m_map->getBlockNoCreateNoEx(pos);
if (*block && !(*block)->isDummy() && (*block)->isGenerated())
return EMERGE_FROM_MEMORY;
// 2). Attempt to load block from disk
*block = m_map->loadBlock(pos);
if (*block && (*block)->isGenerated())
return EMERGE_FROM_DISK;
// 3). Attempt to start generation
if (allow_gen && m_map->initBlockMake(pos, bmdata))
return EMERGE_GENERATED;
// All attempts failed; cancel this block emerge
return EMERGE_CANCELLED;
}
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;
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;
}