3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU Lesser General Public License as published by
7 the Free Software Foundation; either version 2.1 of the License, or
8 (at your option) any later version.
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #include "database-leveldb.h"
28 #include "exceptions.h"
29 #include "util/string.h"
31 #include "leveldb/db.h"
34 #define ENSURE_STATUS_OK(s) \
36 throw FileNotGoodException(std::string("LevelDB error: ") + \
41 Database_LevelDB::Database_LevelDB(const std::string &savedir)
43 leveldb::Options options;
44 options.create_if_missing = true;
45 leveldb::Status status = leveldb::DB::Open(options,
46 savedir + DIR_DELIM + "map.db", &m_database);
47 ENSURE_STATUS_OK(status);
50 Database_LevelDB::~Database_LevelDB()
55 bool Database_LevelDB::saveBlock(const v3s16 &pos, const std::string &data)
57 leveldb::Status status = m_database->Put(leveldb::WriteOptions(),
58 i64tos(getBlockAsInteger(pos)), data);
60 errorstream << "WARNING: saveBlock: LevelDB error saving block "
61 << PP(pos) << ": " << status.ToString() << std::endl;
68 std::string Database_LevelDB::loadBlock(const v3s16 &pos)
71 leveldb::Status status = m_database->Get(leveldb::ReadOptions(),
72 i64tos(getBlockAsInteger(pos)), &datastr);
80 bool Database_LevelDB::deleteBlock(const v3s16 &pos)
82 leveldb::Status status = m_database->Delete(leveldb::WriteOptions(),
83 i64tos(getBlockAsInteger(pos)));
85 errorstream << "WARNING: deleteBlock: LevelDB error deleting block "
86 << PP(pos) << ": " << status.ToString() << std::endl;
93 void Database_LevelDB::listAllLoadableBlocks(std::vector<v3s16> &dst)
95 leveldb::Iterator* it = m_database->NewIterator(leveldb::ReadOptions());
96 for (it->SeekToFirst(); it->Valid(); it->Next()) {
97 dst.push_back(getIntegerAsBlock(stoi64(it->key().ToString())));
99 ENSURE_STATUS_OK(it->status()); // Check for any errors found during the scan
103 #endif // USE_LEVELDB