forked from Mirrorlandia_minetest/minetest
Remove legacy flat-file map code
This commit is contained in:
random-geek
sfan5
parent
2ecf57c640
commit
2f3c96b38d
@ -13,12 +13,6 @@ The block serialization version does not fully specify every aspect of this
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format; if compliance with this format is to be checked, it needs to be
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done by detecting if the files and data indeed follows it.
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Legacy stuff
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=============
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Data can, in theory, be contained in the flat file directory structure
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described below in Version 17, but it is not officially supported. Also you
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may stumble upon all kinds of oddities in not-so-recent formats.
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Files
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======
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Everything is contained in a directory, the name of which is freeform, but
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@ -569,9 +563,9 @@ EndInventoryList
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EndInventory
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---
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==============================================
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Minetest World Format used as of 2011-05 or so
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==============================================
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===========================================================
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Minetest World Format used as of 2011-05 or so (deprecated)
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===========================================================
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Map data serialization format version 17.
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194
src/map.cpp
194
src/map.cpp
@ -1762,13 +1762,6 @@ plan_b:
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//return (s16)level;
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}
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bool ServerMap::loadFromFolders() {
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if (!dbase->initialized() &&
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!fs::PathExists(m_savedir + DIR_DELIM + "map.sqlite"))
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return true;
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return false;
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}
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void ServerMap::createDirs(const std::string &path)
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{
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if (!fs::CreateAllDirs(path)) {
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@ -1778,80 +1771,6 @@ void ServerMap::createDirs(const std::string &path)
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}
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}
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std::string ServerMap::getSectorDir(v2s16 pos, int layout)
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{
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char cc[9];
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switch(layout)
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{
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case 1:
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porting::mt_snprintf(cc, sizeof(cc), "%.4x%.4x",
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(unsigned int) pos.X & 0xffff,
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(unsigned int) pos.Y & 0xffff);
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return m_savedir + DIR_DELIM + "sectors" + DIR_DELIM + cc;
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case 2:
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porting::mt_snprintf(cc, sizeof(cc), (std::string("%.3x") + DIR_DELIM + "%.3x").c_str(),
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(unsigned int) pos.X & 0xfff,
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(unsigned int) pos.Y & 0xfff);
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return m_savedir + DIR_DELIM + "sectors2" + DIR_DELIM + cc;
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default:
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assert(false);
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return "";
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}
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}
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v2s16 ServerMap::getSectorPos(const std::string &dirname)
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{
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unsigned int x = 0, y = 0;
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int r;
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std::string component;
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fs::RemoveLastPathComponent(dirname, &component, 1);
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if(component.size() == 8)
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{
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// Old layout
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r = sscanf(component.c_str(), "%4x%4x", &x, &y);
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}
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else if(component.size() == 3)
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{
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// New layout
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fs::RemoveLastPathComponent(dirname, &component, 2);
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r = sscanf(component.c_str(), (std::string("%3x") + DIR_DELIM + "%3x").c_str(), &x, &y);
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// Sign-extend the 12 bit values up to 16 bits...
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if(x & 0x800) x |= 0xF000;
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if(y & 0x800) y |= 0xF000;
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}
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else
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{
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r = -1;
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}
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FATAL_ERROR_IF(r != 2, "getSectorPos()");
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v2s16 pos((s16)x, (s16)y);
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return pos;
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}
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v3s16 ServerMap::getBlockPos(const std::string §ordir, const std::string &blockfile)
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{
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v2s16 p2d = getSectorPos(sectordir);
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if(blockfile.size() != 4){
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throw InvalidFilenameException("Invalid block filename");
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}
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unsigned int y;
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int r = sscanf(blockfile.c_str(), "%4x", &y);
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if(r != 1)
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throw InvalidFilenameException("Invalid block filename");
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return v3s16(p2d.X, y, p2d.Y);
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}
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std::string ServerMap::getBlockFilename(v3s16 p)
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{
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char cc[5];
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porting::mt_snprintf(cc, sizeof(cc), "%.4x", (unsigned int)p.Y&0xffff);
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return cc;
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}
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void ServerMap::save(ModifiedState save_level)
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{
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if (!m_map_saving_enabled) {
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@ -1921,10 +1840,6 @@ void ServerMap::save(ModifiedState save_level)
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void ServerMap::listAllLoadableBlocks(std::vector<v3s16> &dst)
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{
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if (loadFromFolders()) {
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errorstream << "Map::listAllLoadableBlocks(): Result will be missing "
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<< "all blocks that are stored in flat files." << std::endl;
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}
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dbase->listAllLoadableBlocks(dst);
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if (dbase_ro)
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dbase_ro->listAllLoadableBlocks(dst);
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@ -2018,83 +1933,6 @@ bool ServerMap::saveBlock(MapBlock *block, MapDatabase *db)
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return ret;
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}
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void ServerMap::loadBlock(const std::string §ordir, const std::string &blockfile,
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MapSector *sector, bool save_after_load)
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{
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std::string fullpath = sectordir + DIR_DELIM + blockfile;
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try {
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std::ifstream is(fullpath.c_str(), std::ios_base::binary);
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if (!is.good())
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throw FileNotGoodException("Cannot open block file");
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v3s16 p3d = getBlockPos(sectordir, blockfile);
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v2s16 p2d(p3d.X, p3d.Z);
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assert(sector->getPos() == p2d);
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u8 version = SER_FMT_VER_INVALID;
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is.read((char*)&version, 1);
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if(is.fail())
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throw SerializationError("ServerMap::loadBlock(): Failed"
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" to read MapBlock version");
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/*u32 block_size = MapBlock::serializedLength(version);
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SharedBuffer<u8> data(block_size);
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is.read((char*)*data, block_size);*/
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// This will always return a sector because we're the server
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//MapSector *sector = emergeSector(p2d);
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MapBlock *block = NULL;
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bool created_new = false;
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block = sector->getBlockNoCreateNoEx(p3d.Y);
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if(block == NULL)
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{
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block = sector->createBlankBlockNoInsert(p3d.Y);
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created_new = true;
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}
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// Read basic data
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block->deSerialize(is, version, true);
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// If it's a new block, insert it to the map
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if (created_new) {
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sector->insertBlock(block);
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ReflowScan scanner(this, m_emerge->ndef);
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scanner.scan(block, &m_transforming_liquid);
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}
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/*
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Save blocks loaded in old format in new format
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*/
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if(version < SER_FMT_VER_HIGHEST_WRITE || save_after_load)
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{
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saveBlock(block);
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// Should be in database now, so delete the old file
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fs::RecursiveDelete(fullpath);
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}
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// We just loaded it from the disk, so it's up-to-date.
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block->resetModified();
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}
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catch(SerializationError &e)
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{
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warningstream<<"Invalid block data on disk "
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<<"fullpath="<<fullpath
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<<" (SerializationError). "
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<<"what()="<<e.what()
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<<std::endl;
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// Ignoring. A new one will be generated.
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abort();
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// TODO: Backup file; name is in fullpath.
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}
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}
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void ServerMap::loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load)
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{
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try {
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@ -2172,39 +2010,7 @@ MapBlock* ServerMap::loadBlock(v3s16 blockpos)
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loadBlock(&ret, blockpos, createSector(p2d), false);
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}
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} else {
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// Not found in database, try the files
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// The directory layout we're going to load from.
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// 1 - original sectors/xxxxzzzz/
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// 2 - new sectors2/xxx/zzz/
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// If we load from anything but the latest structure, we will
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// immediately save to the new one, and remove the old.
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std::string sectordir1 = getSectorDir(p2d, 1);
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std::string sectordir;
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if (fs::PathExists(sectordir1)) {
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sectordir = sectordir1;
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} else {
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sectordir = getSectorDir(p2d, 2);
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}
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/*
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Make sure sector is loaded
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*/
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MapSector *sector = getSectorNoGenerate(p2d);
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/*
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Make sure file exists
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*/
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std::string blockfilename = getBlockFilename(blockpos);
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if (!fs::PathExists(sectordir + DIR_DELIM + blockfilename))
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return NULL;
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/*
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Load block and save it to the database
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*/
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loadBlock(sectordir, blockfilename, sector, true);
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}
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MapBlock *block = getBlockNoCreateNoEx(blockpos);
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12
src/map.h
12
src/map.h
@ -380,21 +380,12 @@ public:
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names when saving
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*/
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void createDirs(const std::string &path);
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// returns something like "map/sectors/xxxxxxxx"
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std::string getSectorDir(v2s16 pos, int layout = 2);
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// dirname: final directory name
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v2s16 getSectorPos(const std::string &dirname);
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v3s16 getBlockPos(const std::string §ordir, const std::string &blockfile);
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static std::string getBlockFilename(v3s16 p);
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/*
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Database functions
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*/
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static MapDatabase *createDatabase(const std::string &name, const std::string &savedir, Settings &conf);
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// Returns true if the database file does not exist
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bool loadFromFolders();
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// Call these before and after saving of blocks
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void beginSave();
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void endSave();
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@ -407,9 +398,6 @@ public:
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bool saveBlock(MapBlock *block);
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static bool saveBlock(MapBlock *block, MapDatabase *db);
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// This will generate a sector with getSector if not found.
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void loadBlock(const std::string §ordir, const std::string &blockfile,
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MapSector *sector, bool save_after_load=false);
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MapBlock* loadBlock(v3s16 p);
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// Database version
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void loadBlock(std::string *blob, v3s16 p3d, MapSector *sector, bool save_after_load=false);
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