package blobovnicza import ( apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status" oid "github.com/nspcc-dev/neofs-sdk-go/object/id" "go.etcd.io/bbolt" "go.uber.org/zap" ) // DeletePrm groups the parameters of Delete operation. type DeletePrm struct { addr oid.Address } // DeleteRes groups the resulting values of Delete operation. type DeleteRes struct { } // SetAddress sets the address of the requested object. func (p *DeletePrm) SetAddress(addr oid.Address) { p.addr = addr } // Delete removes an object from Blobovnicza by address. // // Returns any error encountered that // did not allow to completely delete the object. // // Returns an error of type apistatus.ObjectNotFound if the object to be deleted is not in blobovnicza. // // Should not be called in read-only configuration. func (b *Blobovnicza) Delete(prm *DeletePrm) (*DeleteRes, error) { addrKey := addressKey(prm.addr) removed := false err := b.boltDB.Update(func(tx *bbolt.Tx) error { return b.iterateBuckets(tx, func(lower, upper uint64, buck *bbolt.Bucket) (bool, error) { objData := buck.Get(addrKey) if objData == nil { // object is not in bucket => continue iterating return false, nil } sz := uint64(len(objData)) // decrease fullness counter b.decSize(sz) // remove object from the bucket err := buck.Delete(addrKey) if err == nil { b.log.Debug("object was removed from bucket", zap.String("binary size", stringifyByteSize(sz)), zap.String("range", stringifyBounds(lower, upper)), ) } removed = true // stop iteration return true, err }) }) if err == nil && !removed { var errNotFound apistatus.ObjectNotFound return nil, errNotFound } return nil, err }