public IEnumerable <IndexRange> GetUploadableRanges()
{
IEnumerable <IndexRange> ranges = GetPageRanges();
ranges = Enumerable.ToList <IndexRange>(IndexRangeHelper.ChunkRangesBySize(ranges, 2 * MegaByte));
return(ranges);
}
protected static void PopulateContextWithUploadableRanges(FileInfo vhdFile, UploadContextDisk context, bool resume)
{
using (var vds = new VirtualDiskStream(vhdFile.FullName))
{
IEnumerable <IndexRange> ranges = vds.Extents.Select(e => e.Range).ToArray();
var bs = new BufferedStream(vds);
// linear still
var uploadableRanges = IndexRangeHelper.ChunkRangesBySize(ranges, PageSizeInBytes).ToArray();
// detecting empty data blocks line. Takes long
var nonEmptyUploadableRanges = GetNonEmptyRanges(bs, uploadableRanges).ToArray();
context.UploadableDataSize = nonEmptyUploadableRanges.Sum(r => r.Length);
context.UploadableRanges = nonEmptyUploadableRanges;
}
}
