package meta import ( "bytes" "strings" "github.com/nspcc-dev/neofs-api-go/pkg/container" "github.com/nspcc-dev/neofs-api-go/pkg/object" ) /* We might increase performance by not using string representation of identities and addresses. String representation require base58 encoding that slows execution. Instead we can try to marshal these structures directly into bytes. Check it later. */ const invalidBase58String = "_" var ( graveyardBucketName = []byte(invalidBase58String + "Graveyard") toMoveItBucketName = []byte(invalidBase58String + "ToMoveIt") containerVolumeBucketName = []byte(invalidBase58String + "ContainerSize") zeroValue = []byte{0xFF} smallPostfix = invalidBase58String + "small" storageGroupPostfix = invalidBase58String + "SG" tombstonePostfix = invalidBase58String + "TS" ownerPostfix = invalidBase58String + "ownerid" payloadHashPostfix = invalidBase58String + "payloadhash" rootPostfix = invalidBase58String + "root" parentPostfix = invalidBase58String + "parent" splitPostfix = invalidBase58String + "splitid" userAttributePostfix = invalidBase58String + "attr_" splitInfoError *object.SplitInfoError // for errors.As comparisons ) // primaryBucketName returns . func primaryBucketName(cid *container.ID) []byte { return []byte(cid.String()) } // tombstoneBucketName returns _TS. func tombstoneBucketName(cid *container.ID) []byte { return []byte(cid.String() + tombstonePostfix) } // storageGroupBucketName returns _SG. func storageGroupBucketName(cid *container.ID) []byte { return []byte(cid.String() + storageGroupPostfix) } // smallBucketName returns _small. func smallBucketName(cid *container.ID) []byte { return []byte(cid.String() + smallPostfix) // consider caching output values } // attributeBucketName returns _attr_. func attributeBucketName(cid *container.ID, attributeKey string) []byte { sb := strings.Builder{} // consider getting string builders from sync.Pool sb.WriteString(cid.String()) sb.WriteString(userAttributePostfix) sb.WriteString(attributeKey) return []byte(sb.String()) } // returns from attributeBucketName result, nil otherwise. func cidFromAttributeBucket(val []byte, attributeKey string) []byte { suffix := []byte(userAttributePostfix + attributeKey) if !bytes.HasSuffix(val, suffix) { return nil } return val[:len(val)-len(suffix)] } // payloadHashBucketName returns _payloadhash. func payloadHashBucketName(cid *container.ID) []byte { return []byte(cid.String() + payloadHashPostfix) } // rootBucketName returns _root. func rootBucketName(cid *container.ID) []byte { return []byte(cid.String() + rootPostfix) } // ownerBucketName returns _ownerid. func ownerBucketName(cid *container.ID) []byte { return []byte(cid.String() + ownerPostfix) } // parentBucketName returns _parent. func parentBucketName(cid *container.ID) []byte { return []byte(cid.String() + parentPostfix) } // splitBucketName returns _splitid. func splitBucketName(cid *container.ID) []byte { return []byte(cid.String() + splitPostfix) } // addressKey returns key for K-V tables when key is a whole address. func addressKey(addr *object.Address) []byte { return []byte(addr.String()) } // parses object address formed by addressKey. func addressFromKey(k []byte) (*object.Address, error) { a := object.NewAddress() return a, a.Parse(string(k)) } // objectKey returns key for K-V tables when key is an object id. func objectKey(oid *object.ID) []byte { return []byte(oid.String()) }