frostfs-node/pkg/local_object_storage/blobovnicza/move.go

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package blobovnicza
import (
"context"
"fmt"
"git.frostfs.info/TrueCloudLab/frostfs-observability/tracing"
oid "git.frostfs.info/TrueCloudLab/frostfs-sdk-go/object/id"
"go.etcd.io/bbolt"
"go.opentelemetry.io/otel/attribute"
"go.opentelemetry.io/otel/trace"
)
var incompletedMoveBucketName = []byte("INCOMPLETED_MOVE")
type MoveInfo struct {
Address oid.Address
TargetStorageID []byte
}
func (b *Blobovnicza) PutMoveInfo(ctx context.Context, prm MoveInfo) error {
_, span := tracing.StartSpanFromContext(ctx, "Blobovnicza.PutMoveInfo",
trace.WithAttributes(
attribute.String("path", b.path),
attribute.String("address", prm.Address.EncodeToString()),
attribute.String("target_storage_id", string(prm.TargetStorageID)),
))
defer span.End()
key := addressKey(prm.Address)
return b.boltDB.Update(func(tx *bbolt.Tx) error {
bucket, err := tx.CreateBucketIfNotExists(incompletedMoveBucketName)
if err != nil {
return err
}
if err := bucket.Put(key, prm.TargetStorageID); err != nil {
return fmt.Errorf("(%T) failed to save move info: %w", b, err)
}
return nil
})
}
func (b *Blobovnicza) DropMoveInfo(ctx context.Context, address oid.Address) error {
_, span := tracing.StartSpanFromContext(ctx, "Blobovnicza.DropMoveInfo",
trace.WithAttributes(
attribute.String("path", b.path),
attribute.String("address", address.EncodeToString()),
))
defer span.End()
key := addressKey(address)
return b.boltDB.Update(func(tx *bbolt.Tx) error {
bucket := tx.Bucket(incompletedMoveBucketName)
if bucket == nil {
return nil
}
if err := bucket.Delete(key); err != nil {
return fmt.Errorf("(%T) failed to drop move info: %w", b, err)
}
c := bucket.Cursor()
k, v := c.First()
bucketEmpty := k == nil && v == nil
if bucketEmpty {
return tx.DeleteBucket(incompletedMoveBucketName)
}
return nil
})
}
func (b *Blobovnicza) ListMoveInfo(ctx context.Context) ([]MoveInfo, error) {
_, span := tracing.StartSpanFromContext(ctx, "Blobovnicza.ListMoveInfo",
trace.WithAttributes(
attribute.String("path", b.path),
))
defer span.End()
var result []MoveInfo
if err := b.boltDB.View(func(tx *bbolt.Tx) error {
bucket := tx.Bucket(incompletedMoveBucketName)
if bucket == nil {
return nil
}
return bucket.ForEach(func(k, v []byte) error {
var addr oid.Address
storageID := make([]byte, len(v))
if err := addressFromKey(&addr, k); err != nil {
return err
}
copy(storageID, v)
result = append(result, MoveInfo{
Address: addr,
TargetStorageID: storageID,
})
return nil
})
}); err != nil {
return nil, err
}
return result, nil
}