private Task<QiniuBlock> MakeBlock(QiniuBlock qbLocal)
 {
     return
         InternalExtensions.OnSuccess<Tuple<HttpStatusCode, string>, QiniuBlock>(
             this.MakeBlock(qbLocal.Chunks.First.Value.ChunkData, qbLocal.BlockSize),
             (Func<Task<Tuple<HttpStatusCode, string>>, QiniuBlock>) (t =>
             {
                 Tuple<HttpStatusCode, IDictionary<string, object>> tuple = AVClient.ReponseResolve(t.Result,
                     CancellationToken.None);
                 long num1 = long.Parse(tuple.Item2["offset"].ToString());
                 string str1 = tuple.Item2["ctx"].ToString();
                 string str2 = tuple.Item2["host"].ToString();
                 string str3 = tuple.Item2["checksum"].ToString();
                 long num2 = long.Parse(tuple.Item2["crc32"].ToString());
                 qbLocal.Chunks.First.Value.Checksum = str3;
                 qbLocal.Chunks.First.Value.Crc32 = num2;
                 qbLocal.Chunks.First.Value.Ctx = str1;
                 qbLocal.Chunks.First.Value.Offset = num1;
                 qbLocal.Chunks.First.Value.Host = str2;
                 if (qbLocal.Chunks.First.Next != null)
                 {
                     qbLocal.Chunks.First.Next.Value.Ctx = str1;
                     qbLocal.Chunks.First.Next.Value.Offset = num1;
                 }
                 return qbLocal;
             }));
 }
 private LinkedList<QiniuBlock> CuttingBlock(long fsize)
 {
     LinkedList<QiniuBlock> ll = new LinkedList<QiniuBlock>();
     this.SetChunkStrategy();
     int num = this.CalcBlockCount(this.dataStream.Length);
     for (int blockIndexInFile = 0; blockIndexInFile < num; ++blockIndexInFile)
     {
         long length1 = this.dataStream.Length;
         long length2 = (long) AVFile.BLOCKSIZE;
         if (blockIndexInFile == num - 1)
             length2 = length1 - (long) (blockIndexInFile*AVFile.BLOCKSIZE);
         byte[] numArray = new byte[length2];
         this.dataStream.Seek((long) (AVFile.BLOCKSIZE*blockIndexInFile), SeekOrigin.Begin);
         this.dataStream.Read(numArray, 0, (int) length2);
         QiniuBlock qiniuBlock = new QiniuBlock(blockIndexInFile, numArray, this.chunkSize);
         InternalExtensions.Append<QiniuBlock>(ll, qiniuBlock);
     }
     return ll;
 }