ByteBuffer GetCurrentKeyFromStack()
{
var result = ByteBuffer.NewAsync(new byte[_cursor.GetKeyLength()]);
_cursor.FillByKey(result.AsSyncSpan());
return(result);
}
public void EraseRange(long firstKeyIndex, long lastKeyIndex)
{
if (firstKeyIndex < 0)
{
firstKeyIndex = 0;
}
if (lastKeyIndex >= GetKeyValueCount())
{
lastKeyIndex = _prefixKeyCount - 1;
}
if (lastKeyIndex < firstKeyIndex)
{
return;
}
MakeWritable();
firstKeyIndex += _prefixKeyStart;
lastKeyIndex += _prefixKeyStart;
_cursor.SeekIndex(firstKeyIndex);
if (lastKeyIndex != firstKeyIndex)
{
if (_cursor2 == null)
{
_cursor2 = BTreeRoot.CreateCursor();
}
_cursor2.SeekIndex(lastKeyIndex);
var firstKey = GetCurrentKeyFromStack();
var secondKey = ByteBuffer.NewAsync(new byte[_cursor2.GetKeyLength()]);
_cursor2.FillByKey(secondKey.AsSyncSpan());
_keyValueDB.WriteEraseRangeCommand(firstKey, secondKey);
_cursor.EraseTo(_cursor2);
}
else
{
_keyValueDB.WriteEraseOneCommand(GetCurrentKeyFromStack());
_cursor.Erase();
}
InvalidateCurrentKey();
_prefixKeyCount -= lastKeyIndex - firstKeyIndex + 1;
}
public void CanInsertFirstData(byte[] key)
{
Assert.Equal(0, _root.GetCount());
var val = GetSampleValue();
Assert.True(_cursor.Upsert(key, val));
Assert.Equal(1, _root.GetCount());
Assert.Equal(key.Length, _cursor.GetKeyLength());
Assert.Equal(key, _cursor.FillByKey(new byte[key.Length]).ToArray());
Assert.Equal(val.Length, _cursor.GetValueLength());
Assert.Equal(val.ToArray(), _cursor.GetValue().ToArray());
}