/
database_test_util.go
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/
database_test_util.go
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// Copyright 2019 The klaytn Authors
// This file is part of the klaytn library.
//
// The klaytn library is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// The klaytn library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with the klaytn library. If not, see <http://www.gnu.org/licenses/>.
package database
import (
"fmt"
"github.com/syndtr/goleveldb/leveldb/opt"
"path/filepath"
)
// NewLevelDBManagerForTest returns a DBManager, consisted of only LevelDB.
// It also accepts LevelDB option, opt.Options.
func NewLevelDBManagerForTest(dbc *DBConfig, levelDBOption *opt.Options) (DBManager, error) {
dbm := newDatabaseManager(dbc)
checkDBEntryConfigRatio()
var ldb *levelDB
var err error
for i := 0; i < int(databaseEntryTypeSize); i++ {
if !dbm.config.Partitioned {
if i == 0 {
ldb, err = NewLevelDBWithOption(dbc.Dir, levelDBOption)
}
} else {
partitionDir := filepath.Join(dbc.Dir, dbDirs[i])
partitionLDBOption := getLevelDBOptionByPartition(levelDBOption, DBEntryType(i))
partitionLDBOption.Compression = getCompressionType(dbc.LevelDBCompression, DBEntryType(i))
ldb, err = NewLevelDBWithOption(partitionDir, partitionLDBOption)
fmt.Printf("Database: %-15s Compression: %-15s DisableBufferPool: %v \n", dbDirs[i], partitionLDBOption.Compression, levelDBOption.DisableBufferPool)
}
if err != nil {
return nil, fmt.Errorf("failed to create new LevelDB with options. err: %v", err)
}
dbm.dbs[i] = ldb
}
return dbm, nil
}
// getLevelDBOptionByPartition returns scaled LevelDB option from the given LevelDB option.
// Some settings are not changed since they are not globally shared resources.
// e.g., NoSync or CompactionTableSizeMultiplier
func getLevelDBOptionByPartition(levelDBOption *opt.Options, i DBEntryType) *opt.Options {
copiedLevelDBOption := *levelDBOption
ratio := dbConfigRatio[i]
copiedLevelDBOption.WriteBuffer = levelDBOption.WriteBuffer * ratio / 100
return &copiedLevelDBOption
}