forked from TrueCloudLab/frostfs-node
88 lines
1.8 KiB
Go
88 lines
1.8 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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"strconv"
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"git.frostfs.info/TrueCloudLab/frostfs-node/pkg/local_object_storage/blobstor/common"
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)
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const (
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tempFileSymbols = "###"
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storageIDLength = 8
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)
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func (b *BlobTree) Put(_ context.Context, prm common.PutPrm) (common.PutRes, error) {
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if b.cfg.readOnly {
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return common.PutRes{}, common.ErrReadOnly
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}
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dir := b.getDirectoryPath(prm.Address)
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if err := b.createDir(dir); err != nil {
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return common.PutRes{}, err
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}
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if !prm.DontCompress {
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prm.RawData = b.compressor.Compress(prm.RawData)
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}
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idx, err := b.saveToFile(prm, dir)
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if err != nil {
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return common.PutRes{}, 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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return common.PutRes{StorageID: storageID}, nil
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}
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func (b *BlobTree) saveToFile(prm common.PutPrm, dir string) (uint64, error) {
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returnIdx := true
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idx := b.dispatcher.GetIdxForWrite(dir)
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path := b.getFilePath(dir, idx)
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b.fileLock.Lock(path)
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defer b.fileLock.Unlock(path)
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defer func() {
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if returnIdx {
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b.dispatcher.ReturnIdx(dir, idx)
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}
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}()
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currentContent, err := b.readFileContent(path)
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if err != nil {
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return 0, err
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}
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var newRecord objectData
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newRecord.Address = prm.Address
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newRecord.Data = prm.RawData
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size, err := b.writeToTmpAndRename(append(currentContent, newRecord), path)
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if err != nil {
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return 0, err
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}
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returnIdx = size < b.cfg.targetFileSizeBytes
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return idx, nil
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}
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func (b *BlobTree) writeToTmpAndRename(records []objectData, path string) (uint64, error) {
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tmpFile := path + tempFileSymbols + strconv.FormatUint(b.suffix.Add(1), 16)
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size, err := b.saveContentToFile(records, tmpFile)
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if err != nil {
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_ = os.Remove(tmpFile)
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return 0, err
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}
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if err := os.Rename(tmpFile, path); err != nil {
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_ = os.Remove(tmpFile)
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return 0, err
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}
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return size, nil
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}
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