public byte[] GetLeafValue(BTreeLeaf leaf, Key key)
{
var reader = new LeafReader(this, leaf);
var unpacked = DataConverter.Unpack("^i", reader.Read(4), 0);
var numKeys = (int)unpacked[0];
for (int i = 0; i < numKeys; i++)
{
byte[] curKey = reader.Read(KeySize);
int pos;
bool success;
int length = (int)VLQ.FromFunc(_ => reader.Read(1)[0], ctr => true, out pos, out success);
if (!success)
{
throw new Exception("Could not parse VLQ!");
}
byte[] value = reader.Read(length);
if (curKey.SequenceEqual(key.TheKey))
{
return(value);
}
}
return(null);
}
/// <summary>
/// Reads a VLQ from the stream
/// </summary>
/// <returns>A VLQ</returns>
public ulong ReadVLQ(out int length, out bool success)
{
ulong result = VLQ.FromFunc(_ => ReadByte(), ctr => true, out length, out success);
if (!success)
{
return(0);
}
return(result);
}