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

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package engine
import (
"context"
"errors"
"github.com/nspcc-dev/neofs-node/pkg/core/object"
"github.com/nspcc-dev/neofs-node/pkg/local_object_storage/shard"
objectSDK "github.com/nspcc-dev/neofs-sdk-go/object"
)
// InhumePrm encapsulates parameters for inhume operation.
type InhumePrm struct {
tombstone *objectSDK.Address
addrs []*objectSDK.Address
}
// InhumeRes encapsulates results of inhume operation.
type InhumeRes struct{}
// WithTarget sets list of objects that should be inhumed and tombstone address
// as the reason for inhume operation.
//
// tombstone should not be nil, addr should not be empty.
// Should not be called along with MarkAsGarbage.
func (p *InhumePrm) WithTarget(tombstone *objectSDK.Address, addrs ...*objectSDK.Address) *InhumePrm {
if p != nil {
p.addrs = addrs
p.tombstone = tombstone
}
return p
}
// MarkAsGarbage marks object to be physically removed from local storage.
//
// Should not be called along with WithTarget.
func (p *InhumePrm) MarkAsGarbage(addrs ...*objectSDK.Address) *InhumePrm {
if p != nil {
p.addrs = addrs
p.tombstone = nil
}
return p
}
var errInhumeFailure = errors.New("inhume operation failed")
// Inhume calls metabase. Inhume method to mark object as removed. It won't be
// removed physically from shard until `Delete` operation.
//
// Returns an error if executions are blocked (see BlockExecution).
func (e *StorageEngine) Inhume(prm *InhumePrm) (res *InhumeRes, err error) {
err = e.execIfNotBlocked(func() error {
res, err = e.inhume(prm)
return err
})
return
}
func (e *StorageEngine) inhume(prm *InhumePrm) (*InhumeRes, error) {
if e.metrics != nil {
defer elapsed(e.metrics.AddInhumeDuration)()
}
shPrm := new(shard.InhumePrm)
for i := range prm.addrs {
if prm.tombstone != nil {
shPrm.WithTarget(prm.tombstone, prm.addrs[i])
} else {
shPrm.MarkAsGarbage(prm.addrs[i])
}
ok := e.inhumeAddr(prm.addrs[i], shPrm, true)
if !ok {
ok = e.inhumeAddr(prm.addrs[i], shPrm, false)
if !ok {
return nil, errInhumeFailure
}
}
}
return new(InhumeRes), nil
}
func (e *StorageEngine) inhumeAddr(addr *objectSDK.Address, prm *shard.InhumePrm, checkExists bool) (ok bool) {
root := false
e.iterateOverSortedShards(addr, func(_ int, sh hashedShard) (stop bool) {
defer func() {
// if object is root we continue since information about it
// can be presented in other shards
if checkExists && root {
stop = false
}
}()
if checkExists {
exRes, err := sh.Exists(new(shard.ExistsPrm).
WithAddress(addr),
)
if err != nil {
if errors.Is(err, object.ErrAlreadyRemoved) {
// inhumed once - no need to be inhumed again
ok = true
return true
}
var siErr *objectSDK.SplitInfoError
if !errors.As(err, &siErr) {
e.reportShardError(sh, "could not check for presents in shard", err)
return
}
root = true
} else if !exRes.Exists() {
return
}
}
_, err := sh.Inhume(prm)
if err != nil {
e.reportShardError(sh, "could not inhume object in shard", err)
} else {
ok = true
}
return err == nil
})
return
}
func (e *StorageEngine) processExpiredTombstones(ctx context.Context, addrs []*objectSDK.Address) {
tss := make(map[string]struct{}, len(addrs))
for i := range addrs {
tss[addrs[i].String()] = struct{}{}
}
e.iterateOverUnsortedShards(func(sh hashedShard) (stop bool) {
sh.HandleExpiredTombstones(tss)
select {
case <-ctx.Done():
return true
default:
return false
}
})
}