frostfs-node/pkg/local_object_storage/blobovnicza/exists.go
Evgenii Stratonikov 6ad2b5d5b8 [#2068] blobovnicza: Add Exists method
Signed-off-by: Evgenii Stratonikov <evgeniy@morphbits.ru>
2022-12-02 11:52:05 +03:00

29 lines
585 B
Go

package blobovnicza
import (
oid "github.com/nspcc-dev/neofs-sdk-go/object/id"
"go.etcd.io/bbolt"
)
// Exists check if object with the specified address is stored in b.
func (b *Blobovnicza) Exists(addr oid.Address) (bool, error) {
var (
exists bool
addrKey = addressKey(addr)
)
err := b.boltDB.View(func(tx *bbolt.Tx) error {
return tx.ForEach(func(_ []byte, buck *bbolt.Bucket) error {
exists = buck.Get(addrKey) != nil
if exists {
return errInterruptForEach
}
return nil
})
})
if err == errInterruptForEach {
err = nil
}
return exists, err
}