void IterateDict(ulong dictId, IFieldHandler keyHandler, IFieldHandler valueHandler)
{
if (_visitor != null && !_visitor.StartDictionary())
{
return;
}
var o = ObjectDB.AllDictionariesPrefix.Length;
var prefix = new byte[o + PackUnpack.LengthVUInt(dictId)];
Array.Copy(ObjectDB.AllDictionariesPrefix, prefix, o);
PackUnpack.PackVUInt(prefix, ref o, dictId);
_trkv.SetKeyPrefix(prefix);
var protector = _tr.TransactionProtector;
long prevProtectionCounter = 0;
long pos = 0;
while (true)
{
protector.Start();
if (pos == 0)
{
_trkv.SetKeyPrefix(prefix);
if (!_trkv.FindFirstKey())
{
break;
}
}
else
{
if (protector.WasInterupted(prevProtectionCounter))
{
_trkv.SetKeyPrefix(prefix);
if (!_trkv.SetKeyIndex(pos))
{
break;
}
}
else
{
if (!_trkv.FindNextKey())
{
break;
}
}
}
_fastVisitor.MarkCurrentKeyAsUsed(_trkv);
prevProtectionCounter = protector.ProtectionCounter;
if (_visitor == null || _visitor.StartDictKey())
{
var keyReader = new KeyValueDBKeyReader(_trkv);
IterateHandler(keyReader, keyHandler, false, null);
_visitor?.EndDictKey();
}
if (protector.WasInterupted(prevProtectionCounter))
{
_trkv.SetKeyPrefix(prefix);
if (!_trkv.SetKeyIndex(pos))
{
break;
}
}
if (_visitor == null || _visitor.StartDictValue())
{
var valueReader = new KeyValueDBValueReader(_trkv);
IterateHandler(valueReader, valueHandler, false, null);
_visitor?.EndDictValue();
}
pos++;
}
_visitor?.EndDictionary();
}