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[#128] metabase: Implement Delete method

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Implement Delete method on DB structure that adds deleted addresses to
tombstone index. Do not attach addresses from tombstone index to Select
result. Return error from Get method if address is presented in tombstone
index.

Signed-off-by: Leonard Lyubich <leonard@nspcc.ru>
This commit is contained in:
Leonard Lyubich 2020-10-29 15:03:55 +03:00 • committed by Leonard Lyubich
parent 2d319aa29c
commit 20ed7c0d61
4 changed files with 105 additions and 9 deletions
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9
pkg/local_object_storage/metabase/get.go
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@ -15,12 +15,19 @@ func (db *DB) Get(addr *objectSDK.Address) (*object.Object, error) {
var obj *object.Object
if err := db.boltDB.View(func(tx *bbolt.Tx) error {
addrKey := addressKey(addr)
// check if object marked as deleted
if objectRemoved(tx, addrKey) {
return errNotFound
}
primaryBucket := tx.Bucket(primaryBucket)
if primaryBucket == nil {
return errNotFound
}
data := primaryBucket.Get(addressKey(addr))
data := primaryBucket.Get(addrKey)
if data == nil {
return errNotFound
}