forked from TrueCloudLab/frostfs-node
106 lines
2.1 KiB
Go
106 lines
2.1 KiB
Go
package blobtree
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import (
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"context"
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"encoding/binary"
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"os"
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"path/filepath"
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"time"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
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)
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func (b *BlobTree) Iterate(_ context.Context, prm common.IteratePrm) (common.IterateRes, error) {
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var (
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startedAt = time.Now()
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err error
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)
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defer func() {
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b.cfg.metrics.Iterate(time.Since(startedAt), err == nil)
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}()
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err = b.iterateDir(b.cfg.rootPath, 0, prm)
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return common.IterateRes{}, err
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}
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func (b *BlobTree) iterateDir(dir string, depth uint64, prm common.IteratePrm) error {
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entities, err := os.ReadDir(dir)
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if err != nil {
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if prm.IgnoreErrors {
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return nil
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}
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return err
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}
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for _, entity := range entities {
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if depth < b.cfg.depth && entity.IsDir() {
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err := b.iterateDir(filepath.Join(dir, entity.Name()), depth+1, prm)
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if err != nil {
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return err
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}
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}
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if depth != b.cfg.depth {
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continue
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}
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if b.isTempFile(entity.Name()) {
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continue
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}
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idx, err := b.parseIdx(entity.Name())
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if err != nil {
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continue
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}
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path := b.getFilePath(dir, idx)
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err = b.iterateRecords(idx, path, prm)
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if err != nil {
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return err
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}
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}
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return nil
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}
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func (b *BlobTree) iterateRecords(idx uint64, path string, prm common.IteratePrm) error {
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b.fileLock.RLock(path)
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defer b.fileLock.RUnlock(path)
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records, err := b.readFileContent(path)
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if err != nil {
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if prm.IgnoreErrors {
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return nil
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}
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return err
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}
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for _, record := range records {
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if prm.LazyHandler != nil {
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if err = prm.LazyHandler(record.Address, func() ([]byte, error) {
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return record.Data, nil
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}); err != nil {
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return err
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}
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continue
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}
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record.Data, err = b.compressor.Decompress(record.Data)
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if err != nil {
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if prm.IgnoreErrors {
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if prm.ErrorHandler != nil {
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return prm.ErrorHandler(record.Address, err)
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}
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continue
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}
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return err
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}
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storageID := make([]byte, storageIDLength)
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binary.LittleEndian.PutUint64(storageID, idx)
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err = prm.Handler(common.IterationElement{
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Address: record.Address,
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ObjectData: record.Data,
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StorageID: storageID,
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})
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if err != nil {
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return err
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}
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}
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return nil
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}
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