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)
{
#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;
}
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;
}
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;
}