public IEnumerable <KeyValuePair <uint, uint> > QuerySizeEnumerator()
{
long prevProtectionCounter = 0;
var prevModificationCounter = 0;
long pos = 0;
while (true)
{
_keyValueTrProtector.Start();
if (pos == 0)
{
prevModificationCounter = _modificationCounter;
_keyValueTr.SetKeyPrefix(_prefix);
if (!_keyValueTr.FindFirstKey())
{
break;
}
}
else
{
if (_keyValueTrProtector.WasInterupted(prevProtectionCounter))
{
if (prevModificationCounter != _modificationCounter)
{
ThrowModifiedDuringEnum();
}
_keyValueTr.SetKeyPrefix(_prefix);
if (!_keyValueTr.SetKeyIndex(pos))
{
break;
}
}
else
{
if (!_keyValueTr.FindNextKey())
{
break;
}
}
}
prevProtectionCounter = _keyValueTrProtector.ProtectionCounter;
var size = _keyValueTr.GetStorageSizeOfCurrentKey();
yield return(size);
pos++;
}
}
public void MarkCurrentKeyAsUsed(IKeyValueDBTransaction tr)
{
Keys = Keys.ResizingAppend(ByteBuffer.NewAsync(tr.GetKey()));
Builder.Append("Used key: ");
Print(tr.GetKey());
Builder.AppendFormat(" Value len:{0}", tr.GetStorageSizeOfCurrentKey().Value);
Builder.AppendLine();
}
public void MarkCurrentKeyAsUsed(IKeyValueDBTransaction tr)
{
Keys = Keys.ResizingAppend(ByteBuffer.NewSync(tr.GetKeyPrefix())).ResizingAppend(tr.GetKey());
Builder.Append("Used key: ");
Print(ByteBuffer.NewSync(tr.GetKeyPrefix()));
Builder.Append('|');
Print(tr.GetKey());
Builder.AppendFormat(" Value len:{0}", tr.GetStorageSizeOfCurrentKey().Value);
Builder.AppendLine();
}
public KeyValuePair <uint, uint> GetStorageSize(ulong oid)
{
_keyValueTrProtector.Start();
_keyValueTr.SetKeyPrefix(ObjectDB.AllObjectsPrefix);
if (!_keyValueTr.FindExactKey(BuildKeyFromOid(oid)))
{
return(new KeyValuePair <uint, uint>(0, 0));
}
var res = _keyValueTr.GetStorageSizeOfCurrentKey();
return(res);
}
void ImportKeysWithPrefix(byte[] prefix, IKeyValueDBTransaction sourceKvTr)
{
sourceKvTr.SetKeyPrefix(prefix);
if (!sourceKvTr.FindFirstKey())
return;
using (var kvtr = _keyValueDb.StartWritingTransaction().Result)
{
kvtr.SetKeyPrefix(prefix);
do
{
//create all keys, instead of value store only byte length of value
kvtr.CreateOrUpdateKeyValue(sourceKvTr.GetKey(), Vuint2ByteBuffer(sourceKvTr.GetStorageSizeOfCurrentKey().Value));
} while (sourceKvTr.FindNextKey());
kvtr.Commit();
}
}
void ImportKeysWithPrefix(byte[] prefix, IKeyValueDBTransaction sourceKvTr)
{
sourceKvTr.SetKeyPrefix(prefix);
if (!sourceKvTr.FindFirstKey())
{
return;
}
using (var kvtr = _keyValueDb.StartWritingTransaction().Result)
{
kvtr.SetKeyPrefix(prefix);
do
{
//create all keys, instead of value store only byte length of value
kvtr.CreateOrUpdateKeyValue(sourceKvTr.GetKey(), Vuint2ByteBuffer(sourceKvTr.GetStorageSizeOfCurrentKey().Value));
} while (sourceKvTr.FindNextKey());
kvtr.Commit();
}
}
public void MarkCurrentKeyAsUsed(IKeyValueDBTransaction tr)
{
var(memory, disk) = tr.GetStorageSizeOfCurrentKey();
_currentMemorySize += memory + KeyOverhead;
_currentOnDiskSize += disk;
}
public KeyValuePair <uint, uint> GetStorageSizeOfCurrentKey()
{
return(_keyValueDBTransaction.GetStorageSizeOfCurrentKey());
}
