forked from TrueCloudLab/frostfs-node
151 lines
3.7 KiB
Go
151 lines
3.7 KiB
Go
package meta
|
|
|
|
import (
|
|
"errors"
|
|
"fmt"
|
|
"strconv"
|
|
|
|
cid "github.com/nspcc-dev/neofs-api-go/pkg/container/id"
|
|
"github.com/nspcc-dev/neofs-api-go/pkg/object"
|
|
objectV2 "github.com/nspcc-dev/neofs-api-go/v2/object"
|
|
"go.etcd.io/bbolt"
|
|
)
|
|
|
|
// ExpiredObject is a descriptor of expired object from DB.
|
|
type ExpiredObject struct {
|
|
typ object.Type
|
|
|
|
addr *object.Address
|
|
}
|
|
|
|
// Type returns type of the expired object.
|
|
func (e *ExpiredObject) Type() object.Type {
|
|
return e.typ
|
|
}
|
|
|
|
// Address returns address of the expired object.
|
|
func (e *ExpiredObject) Address() *object.Address {
|
|
return e.addr
|
|
}
|
|
|
|
// ExpiredObjectHandler is an ExpiredObject handling function.
|
|
type ExpiredObjectHandler func(*ExpiredObject) error
|
|
|
|
// ErrInterruptIterator is returned by iteration handlers
|
|
// as a "break" keyword.
|
|
var ErrInterruptIterator = errors.New("iterator is interrupted")
|
|
|
|
// IterateExpired iterates over all objects in DB which are out of date
|
|
// relative to epoch.
|
|
//
|
|
// If h returns ErrInterruptIterator, nil returns immediately.
|
|
// Returns other errors of h directly.
|
|
func (db *DB) IterateExpired(epoch uint64, h ExpiredObjectHandler) error {
|
|
return db.boltDB.View(func(tx *bbolt.Tx) error {
|
|
return db.iterateExpired(tx, epoch, h)
|
|
})
|
|
}
|
|
|
|
func (db *DB) iterateExpired(tx *bbolt.Tx, epoch uint64, h ExpiredObjectHandler) error {
|
|
err := tx.ForEach(func(name []byte, b *bbolt.Bucket) error {
|
|
cidBytes := cidFromAttributeBucket(name, objectV2.SysAttributeExpEpoch)
|
|
if cidBytes == nil {
|
|
return nil
|
|
}
|
|
|
|
return b.ForEach(func(expKey, _ []byte) error {
|
|
bktExpired := b.Bucket(expKey)
|
|
if bktExpired == nil {
|
|
return nil
|
|
}
|
|
|
|
expiresAt, err := strconv.ParseUint(string(expKey), 10, 64)
|
|
if err != nil {
|
|
return fmt.Errorf("could not parse expiration epoch: %w", err)
|
|
} else if expiresAt >= epoch {
|
|
return nil
|
|
}
|
|
|
|
return bktExpired.ForEach(func(idKey, _ []byte) error {
|
|
id := object.NewID()
|
|
|
|
err = id.Parse(string(idKey))
|
|
if err != nil {
|
|
return fmt.Errorf("could not parse ID of expired object: %w", err)
|
|
}
|
|
|
|
cnrID := cid.New()
|
|
|
|
err = cnrID.Parse(string(cidBytes))
|
|
if err != nil {
|
|
return fmt.Errorf("could not parse container ID of expired bucket: %w", err)
|
|
}
|
|
|
|
addr := object.NewAddress()
|
|
addr.SetContainerID(cnrID)
|
|
addr.SetObjectID(id)
|
|
|
|
return h(&ExpiredObject{
|
|
typ: objectType(tx, cnrID, idKey),
|
|
addr: addr,
|
|
})
|
|
})
|
|
})
|
|
})
|
|
|
|
if errors.Is(err, ErrInterruptIterator) {
|
|
err = nil
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func objectType(tx *bbolt.Tx, cid *cid.ID, oidBytes []byte) object.Type {
|
|
switch {
|
|
default:
|
|
return object.TypeRegular
|
|
case inBucket(tx, tombstoneBucketName(cid), oidBytes):
|
|
return object.TypeTombstone
|
|
case inBucket(tx, storageGroupBucketName(cid), oidBytes):
|
|
return object.TypeStorageGroup
|
|
}
|
|
}
|
|
|
|
// IterateCoveredByTombstones iterates over all objects in DB which are covered
|
|
// by tombstone with string address from tss.
|
|
//
|
|
// If h returns ErrInterruptIterator, nil returns immediately.
|
|
// Returns other errors of h directly.
|
|
//
|
|
// Does not modify tss.
|
|
func (db *DB) IterateCoveredByTombstones(tss map[string]struct{}, h func(*object.Address) error) error {
|
|
return db.boltDB.View(func(tx *bbolt.Tx) error {
|
|
return db.iterateCoveredByTombstones(tx, tss, h)
|
|
})
|
|
}
|
|
|
|
func (db *DB) iterateCoveredByTombstones(tx *bbolt.Tx, tss map[string]struct{}, h func(*object.Address) error) error {
|
|
bktGraveyard := tx.Bucket(graveyardBucketName)
|
|
if bktGraveyard == nil {
|
|
return nil
|
|
}
|
|
|
|
err := bktGraveyard.ForEach(func(k, v []byte) error {
|
|
if _, ok := tss[string(v)]; ok {
|
|
addr, err := addressFromKey(k)
|
|
if err != nil {
|
|
return fmt.Errorf("could not parse address of the object under tombstone: %w", err)
|
|
}
|
|
|
|
return h(addr)
|
|
}
|
|
|
|
return nil
|
|
})
|
|
|
|
if errors.Is(err, ErrInterruptIterator) {
|
|
err = nil
|
|
}
|
|
|
|
return err
|
|
}
|