private void Flush()
{
encoder.Encode(nextValues, 0, nextBlocks, 0, iterations);
int blockCount = (int)format.ByteCount(PackedInt32s.VERSION_CURRENT, off, m_bitsPerValue);
m_out.WriteBytes(nextBlocks, blockCount);
Arrays.Fill(nextValues, 0L);
off = 0;
}
public override int Set(int index, long[] arr, int off, int len)
{
Debug.Assert(len > 0, "len must be > 0 (got " + len + ")");
Debug.Assert(index >= 0 && index < m_valueCount);
len = Math.Min(len, m_valueCount - index);
Debug.Assert(off + len <= arr.Length);
int originalIndex = index;
// go to the next block boundary
int valuesPerBlock = 64 / m_bitsPerValue;
int offsetInBlock = index % valuesPerBlock;
if (offsetInBlock != 0)
{
for (int i = offsetInBlock; i < valuesPerBlock && len > 0; ++i)
{
Set(index++, arr[off++]);
--len;
}
if (len == 0)
{
return(index - originalIndex);
}
}
// bulk set
Debug.Assert(index % valuesPerBlock == 0);
BulkOperation op = BulkOperation.Of(PackedInt32s.Format.PACKED_SINGLE_BLOCK, m_bitsPerValue);
Debug.Assert(op.Int64BlockCount == 1);
Debug.Assert(op.Int64ValueCount == valuesPerBlock);
int blockIndex = index / valuesPerBlock;
int nblocks = (index + len) / valuesPerBlock - blockIndex;
op.Encode(arr, off, blocks, blockIndex, nblocks);
int diff = nblocks * valuesPerBlock;
index += diff;
len -= diff;
if (index > originalIndex)
{
// stay at the block boundary
return(index - originalIndex);
}
else
{
// no progress so far => already at a block boundary but no full block to
// set
Debug.Assert(index == originalIndex);
return(base.Set(index, arr, off, len));
}
}