protected override List <BuilderExtent> FixExtents(out long totalLength)
{
const int FooterSize = 512;
const int DynHeaderSize = 1024;
List <BuilderExtent> extents = new List <BuilderExtent>();
_footer.DataOffset = FooterSize;
DynamicHeader dynHeader = new DynamicHeader(-1, FooterSize + DynHeaderSize, _blockSize, _footer.CurrentSize);
BlockAllocationTableExtent batExtent = new BlockAllocationTableExtent(FooterSize + DynHeaderSize,
dynHeader.MaxTableEntries);
long streamPos = batExtent.Start + batExtent.Length;
foreach (Range <long, long> blockRange in StreamExtent.Blocks(_content.Extents, _blockSize))
{
for (int i = 0; i < blockRange.Count; ++i)
{
long block = blockRange.Offset + i;
long blockStart = block * _blockSize;
DataBlockExtent dataExtent = new DataBlockExtent(streamPos,
new SubStream(_content, blockStart, Math.Min(_blockSize, _content.Length - blockStart)));
extents.Add(dataExtent);
batExtent.SetEntry((int)block, (uint)(streamPos / Sizes.Sector));
streamPos += dataExtent.Length;
}
}
_footer.UpdateChecksum();
dynHeader.UpdateChecksum();
byte[] footerBuffer = new byte[FooterSize];
_footer.ToBytes(footerBuffer, 0);
byte[] dynHeaderBuffer = new byte[DynHeaderSize];
dynHeader.ToBytes(dynHeaderBuffer, 0);
// Add footer (to end)
extents.Add(new BuilderBufferExtent(streamPos, footerBuffer));
totalLength = streamPos + FooterSize;
extents.Insert(0, batExtent);
extents.Insert(0, new BuilderBufferExtent(FooterSize, dynHeaderBuffer));
extents.Insert(0, new BuilderBufferExtent(0, footerBuffer));
return(extents);
}
internal override List<BuilderExtent> FixExtents(out long totalLength)
{
const int FooterSize = 512;
const int DynHeaderSize = 1024;
List<BuilderExtent> extents = new List<BuilderExtent>();
_footer.DataOffset = FooterSize;
DynamicHeader dynHeader = new DynamicHeader(-1, FooterSize + DynHeaderSize, _blockSize, _footer.CurrentSize);
BlockAllocationTableExtent batExtent = new BlockAllocationTableExtent(FooterSize + DynHeaderSize, dynHeader.MaxTableEntries);
long streamPos = batExtent.Start + batExtent.Length;
foreach (var blockRange in StreamExtent.Blocks(_content.Extents, _blockSize))
{
for (int i = 0; i < blockRange.Count; ++i)
{
long block = blockRange.Offset + i;
long blockStart = block * _blockSize;
DataBlockExtent dataExtent = new DataBlockExtent(streamPos, new SubStream(_content, blockStart, Math.Min(_blockSize, _content.Length - blockStart)));
extents.Add(dataExtent);
batExtent.SetEntry((int)block, (uint)(streamPos / Sizes.Sector));
streamPos += dataExtent.Length;
}
}
_footer.UpdateChecksum();
dynHeader.UpdateChecksum();
byte[] footerBuffer = new byte[FooterSize];
_footer.ToBytes(footerBuffer, 0);
byte[] dynHeaderBuffer = new byte[DynHeaderSize];
dynHeader.ToBytes(dynHeaderBuffer, 0);
// Add footer (to end)
extents.Add(new BuilderBufferExtent(streamPos, footerBuffer));
totalLength = streamPos + FooterSize;
extents.Insert(0, batExtent);
extents.Insert(0, new BuilderBufferExtent(FooterSize, dynHeaderBuffer));
extents.Insert(0, new BuilderBufferExtent(0, footerBuffer));
return extents;
}
