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package goleveldb
import (
"github.com/syndtr/goleveldb/leveldb"
"github.com/syndtr/goleveldb/leveldb/filter"
"github.com/syndtr/goleveldb/leveldb/opt"
leveldbstorage "github.com/syndtr/goleveldb/leveldb/storage"
"github.com/aptly-dev/aptly/database"
)
func internalOpen(path string, throttleCompaction bool) (*leveldb.DB, error) {
o := &opt.Options{
Filter: filter.NewBloomFilter(10),
OpenFilesCacheCapacity: 256,
}
if throttleCompaction {
o.CompactionL0Trigger = 32
o.WriteL0PauseTrigger = 96
o.WriteL0SlowdownTrigger = 64
}
return leveldb.OpenFile(path, o)
}
// NewDB creates new instance of DB, but doesn't open it (yet)
func NewDB(path string) (database.Storage, error) {
return &storage{path: path}, nil
}
// NewOpenDB creates new instance of DB and opens it
func NewOpenDB(path string) (database.Storage, error) {
db, err := NewDB(path)
if err != nil {
return nil, err
}
return db, db.Open()
}
// RecoverDB recovers LevelDB database from corruption
func RecoverDB(path string) error {
stor, err := leveldbstorage.OpenFile(path, false)
if err != nil {
return err
}
db, err := leveldb.Recover(stor, nil)
if err != nil {
return err
}
_ = db.Close()
_ = stor.Close()
return nil
}
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