frostfs-node/pkg/local_object_storage/engine/delete.go

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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"
objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"go.uber.org/zap"
)
// 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{}
// WithAddress is a Delete option to set the addresses of the objects to delete.
//
// Option is required.
func (p *DeletePrm) WithAddress(addr oid.Address) {
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() {
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
}
e.iterateOverSortedShards(prm.addr, func(_ int, sh hashedShard) (stop bool) {
var existsPrm shard.ExistsPrm
existsPrm.SetAddress(prm.addr)
resExists, err := sh.Exists(existsPrm)
if err != nil {
_, ok := err.(*objectSDK.SplitInfoError)
if ok || shard.IsErrRemoved(err) || shard.IsErrObjectExpired(err) {
return true
}
if !shard.IsErrNotFound(err) {
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)
if prm.forceRemoval {
shPrm.ForceRemoval()
}
_, err = sh.Inhume(shPrm)
if err != nil {
if errors.Is(err, shard.ErrReadOnlyMode) || errors.Is(err, shard.ErrDegradedMode) {
e.log.Warn("could not inhume object in shard",
zap.Stringer("shard_id", sh.ID()),
zap.String("error", err.Error()))
} else {
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
}