private void Cleanup()
{
if (blocks.Count == 0)
{
return;
}
for (int i = 0, count = blocks.Count; i < count; ++i)
{
SegmentPool.Release(blocks[i]);
}
blocks.Clear();
current = new Segment();
}
public void Trim()
{
int index, count;
// position <- marker
if (marker >= 0)
{
if (position != marker)
{
Position = (marker - front);
}
marker = -1;
}
if (position == back)
{
// all the bytes consumed; leave only the leading block
index = 1;
count = blocks.Count - 1;
front = back = 0;
}
else
{
// clip out leading blocks consumed
index = 0;
count = position >> sizeExponent;
if (count >= blocks.Count)
{
count = blocks.Count - 1;
}
front = position & remainderMask;
back -= BlockSize * count;
}
if (count > 0)
{
List <Segment> blocksToRemove = blocks.GetRange(index, count);
blocks.RemoveRange(index, count);
for (int i = 0; i < blocksToRemove.Count; ++i)
{
SegmentPool.Release(blocksToRemove[i]);
}
}
Position = 0;
}
