package engine import ( "errors" "github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard" apistatus "github.com/nspcc-dev/neofs-sdk-go/client/status" oid "github.com/nspcc-dev/neofs-sdk-go/object/id" ) // DeletePrm groups the parameters of Delete operation. type DeletePrm struct { addr []oid.Address forceRemoval bool } // DeleteRes groups the resulting values of Delete operation. type DeleteRes struct{} // WithAddresses is a Delete option to set the addresses of the objects to delete. // // Option is required. func (p *DeletePrm) WithAddresses(addr ...oid.Address) { if p != nil { p.addr = append(p.addr, addr...) } } // WithForceRemoval is a Delete option to remove an object despite any // restrictions imposed on deleting that object. Expected to be used // only in control service. func (p *DeletePrm) WithForceRemoval() { if p != nil { p.forceRemoval = true } } // Delete marks the objects to be removed. // // Returns an error if executions are blocked (see BlockExecution). // // Returns apistatus.ObjectLocked if at least one object is locked. // In this case no object from the list is marked to be deleted. // // NOTE: Marks any object to be deleted (despite any prohibitions // on operations with that object) if WithForceRemoval option has // been provided. func (e *StorageEngine) Delete(prm DeletePrm) (res DeleteRes, err error) { err = e.execIfNotBlocked(func() error { res, err = e.delete(prm) return err }) return } func (e *StorageEngine) delete(prm DeletePrm) (DeleteRes, error) { if e.metrics != nil { defer elapsed(e.metrics.AddDeleteDuration)() } var locked struct { is bool err apistatus.ObjectLocked } for i := range prm.addr { e.iterateOverSortedShards(prm.addr[i], func(_ int, sh hashedShard) (stop bool) { var existsPrm shard.ExistsPrm existsPrm.SetAddress(prm.addr[i]) resExists, err := sh.Exists(existsPrm) if err != nil { e.reportShardError(sh, "could not check object existence", err) return false } else if !resExists.Exists() { return false } var shPrm shard.InhumePrm shPrm.MarkAsGarbage(prm.addr[i]) if prm.forceRemoval { shPrm.ForceRemoval() } _, err = sh.Inhume(shPrm) if err != nil { e.reportShardError(sh, "could not inhume object in shard", err) locked.is = errors.As(err, &locked.err) return locked.is } return true }) } if locked.is { return DeleteRes{}, locked.err } return DeleteRes{}, nil }