package meta import ( "fmt" "github.com/TrueCloudLab/frostfs-node/pkg/local_object_storage/shard/mode" ) // SetMode sets the metabase mode of operation. // If the mode assumes no operation metabase, the database is closed. func (db *DB) SetMode(m mode.Mode) error { db.modeMtx.Lock() defer db.modeMtx.Unlock() if db.mode == m { return nil } if !db.mode.NoMetabase() { if err := db.Close(); err != nil { return fmt.Errorf("can't set metabase mode (old=%s, new=%s): %w", db.mode, m, err) } } var err error switch { case m.NoMetabase(): db.boltDB = nil case m.ReadOnly(): err = db.Open(true) default: err = db.Open(false) } if err == nil && !m.NoMetabase() && !m.ReadOnly() { err = db.Init() } if err != nil { return fmt.Errorf("can't set metabase mode (old=%s, new=%s): %w", db.mode, m, err) } db.mode = m return nil }