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Add dummy and LevelDB database backends

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This commit is contained in:
Ilya Zhuravlev 2012-10-23 01:18:44 +04:00 • committed by Sfan5
parent 71a8769bb5
commit 58841ef12f
148 changed files with 26766 additions and 242 deletions
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65
src/main.cpp
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@ -78,6 +78,11 @@ with this program; if not, write to the Free Software Foundation, Inc.,
#include "serverlist.h"
#include "guiEngine.h"
#ifdef USE_LEVELDB
#include "database-sqlite3.h"
#include "database-leveldb.h"
#endif
/*
Settings.
These are loaded from the config file.
@ -789,6 +794,10 @@ int main(int argc, char *argv[])
_("Set logfile path ('' = no logging)"))));
allowed_options.insert(std::make_pair("gameid", ValueSpec(VALUETYPE_STRING,
_("Set gameid (\"--gameid list\" prints available ones)"))));
#if USE_LEVELDB
allowed_options.insert("migrate", ValueSpec(VALUETYPE_STRING,
_("Migrate from current map backend to another")));
#endif
#ifndef SERVER
allowed_options.insert(std::make_pair("videomodes", ValueSpec(VALUETYPE_FLAG,
_("Show available video modes"))));
@ -1085,6 +1094,7 @@ int main(int argc, char *argv[])
}
}
/*
Run dedicated server if asked to or no other option
*/
@ -1207,6 +1217,61 @@ int main(int argc, char *argv[])
// Create server
Server server(world_path, gamespec, false);
#if USE_LEVELDB
// Database migration
if (cmd_args.exists("migrate")) {
std::string migrate_to = cmd_args.get("migrate");
Settings world_mt;
bool success = world_mt.readConfigFile((world_path + DIR_DELIM + "world.mt").c_str());
if (!success) {
errorstream << "Cannot read world.mt" << std::endl;
return 1;
}
if (!world_mt.exists("backend")) {
errorstream << "Please specify your current backend in world.mt file:"
<< std::endl << " backend = {sqlite3|leveldb|dummy}" << std::endl;
return 1;
}
std::string backend = world_mt.get("backend");
Database *new_db;
if (backend == migrate_to) {
errorstream << "Cannot migrate: new backend is same as the old one" << std::endl;
return 1;
}
if (migrate_to == "sqlite3")
new_db = new Database_SQLite3(&(ServerMap&)server.getMap(), world_path);
else if (migrate_to == "leveldb")
new_db = new Database_LevelDB(&(ServerMap&)server.getMap(), world_path);
else {
errorstream << "Migration to " << migrate_to << " is not supported" << std::endl;
return 1;
}
core::list<v3s16> blocks;
ServerMap &old_map = ((ServerMap&)server.getMap());
old_map.listAllLoadableBlocks(blocks);
int count = 0;
new_db->beginSave();
for (core::list<v3s16>::Iterator i = blocks.begin(); i != blocks.end(); ++i) {
MapBlock *block = old_map.loadBlock(*i);
new_db->saveBlock(block);
MapSector *sector = old_map.getSectorNoGenerate(v2s16(i->X, i->Z));
sector->deleteBlock(block);
++count;
if (count % 500 == 0)
actionstream << "Migrated " << count << " blocks "
<< (100.0 * count / blocks.size()) << "\% completed" << std::endl;
}
new_db->endSave();
actionstream << "Successfully migrated " << count << " blocks" << std::endl;
actionstream << "Don't forget to update your world.mt backend setting!" << std::endl;
return 0;
}
#endif
server.start(port);
// Run server