package blobovniczatree import ( "fmt" "path/filepath" "git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobovnicza" "go.uber.org/zap" ) // Open opens blobovnicza tree. func (b *Blobovniczas) Open(readOnly bool) error { b.readOnly = readOnly return nil } // Init initializes blobovnicza tree. // // Should be called exactly once. func (b *Blobovniczas) Init() error { b.log.Debug("initializing Blobovnicza's") if b.readOnly { b.log.Debug("read-only mode, skip blobovniczas initialization...") return nil } return b.iterateLeaves(func(p string) (bool, error) { blz, err := b.openBlobovniczaNoCache(p) if err != nil { return true, err } defer blz.Close() if err := blz.Init(); err != nil { return true, fmt.Errorf("could not initialize blobovnicza structure %s: %w", p, err) } b.log.Debug("blobovnicza successfully initialized, closing...", zap.String("id", p)) return false, nil }) } // Close implements common.Storage. func (b *Blobovniczas) Close() error { b.activeMtx.Lock() b.lruMtx.Lock() for p, v := range b.active { if err := v.blz.Close(); err != nil { b.log.Debug("could not close active blobovnicza", zap.String("path", p), zap.String("error", err.Error()), ) } b.opened.Remove(p) } for _, k := range b.opened.Keys() { blz, _ := b.opened.Get(k) if err := blz.Close(); err != nil { b.log.Debug("could not close active blobovnicza", zap.String("path", k), zap.String("error", err.Error()), ) } b.opened.Remove(k) } b.active = make(map[string]blobovniczaWithIndex) b.lruMtx.Unlock() b.activeMtx.Unlock() return nil } // opens and returns blobovnicza with path p. // // If blobovnicza is already opened and cached, instance from cache is returned w/o changes. func (b *Blobovniczas) openBlobovnicza(p string) (*blobovnicza.Blobovnicza, error) { b.lruMtx.Lock() v, ok := b.opened.Get(p) b.lruMtx.Unlock() if ok { // blobovnicza should be opened in cache return v, nil } lvlPath := filepath.Dir(p) curIndex := u64FromHexString(filepath.Base(p)) b.activeMtx.RLock() defer b.activeMtx.RUnlock() active, ok := b.active[lvlPath] if ok && active.ind == curIndex { return active.blz, nil } b.lruMtx.Lock() defer b.lruMtx.Unlock() v, ok = b.opened.Get(p) if ok { return v, nil } blz, err := b.openBlobovniczaNoCache(p) if err != nil { return nil, err } b.opened.Add(p, blz) return blz, nil } func (b *Blobovniczas) openBlobovniczaNoCache(p string) (*blobovnicza.Blobovnicza, error) { b.openMtx.Lock() defer b.openMtx.Unlock() blz := blobovnicza.New(append(b.blzOpts, blobovnicza.WithReadOnly(b.readOnly), blobovnicza.WithPath(filepath.Join(b.rootPath, p)), )...) if err := blz.Open(); err != nil { return nil, fmt.Errorf("could not open blobovnicza %s: %w", p, err) } return blz, nil }