Esempio n. 1
0
        void ProcessLeafs()
        {
            FileStream ThreadFilePtr   = new FileStream(Filename, FileMode.Open, FileAccess.Read);
            FileBlock  ThreadFileBlock = FileParts[Convert.ToInt16(Thread.CurrentThread.Name)];
            Tiger      TG = new Tiger();

            byte[] DataBlock;
            byte[] Data = new byte[LeafSize + 1];
            int    LeafIndex, BlockLeafs;
            int    i;

            ThreadFilePtr.Position = ThreadFileBlock.Start;

            while (ThreadFilePtr.Position < ThreadFileBlock.End)
            {
                LeafIndex = (int)ThreadFilePtr.Position / 1024;

                if (ThreadFileBlock.End - ThreadFilePtr.Position < DataBlockSize)
                {
                    DataBlock = new byte[ThreadFileBlock.End - ThreadFilePtr.Position];
                }
                else
                {
                    DataBlock = new byte[DataBlockSize];
                }

                ThreadFilePtr.Read(DataBlock, 0, DataBlock.Length);               //read block

                BlockLeafs = DataBlock.Length / 1024;

                for (i = 0; i < BlockLeafs; i++)
                {
                    Buffer.BlockCopy(DataBlock, i * LeafSize, Data, 1, LeafSize);

                    TG.Initialize();
                    TTH[0][LeafIndex++] = TG.ComputeHash(Data);
                }

                if (i * LeafSize < DataBlock.Length)
                {
                    Data    = new byte[DataBlock.Length - BlockLeafs * LeafSize + 1];
                    Data[0] = LeafHash;

                    Buffer.BlockCopy(DataBlock, BlockLeafs * LeafSize, Data, 1, (Data.Length - 1));

                    TG.Initialize();
                    TTH[0][LeafIndex++] = TG.ComputeHash(Data);

                    Data    = new byte[LeafSize + 1];
                    Data[0] = LeafHash;
                }
            }

            DataBlock = null;
            Data      = null;
        }
Esempio n. 2
0
        void SplitFile()
        {
            long LeafsInPart = LeafCount / ThreadCount;

            // check if file is bigger then 1 MB or don't use threads
            if (FilePtr.Length > 1024 * 1024)
            {
                for (int i = 0; i < ThreadCount; i++)
                {
                    FileParts[i] = new FileBlock(LeafsInPart * LeafSize * i,
                                                 LeafsInPart * LeafSize * (i + 1));
                }
            }

            FileParts[ThreadCount - 1].End = FilePtr.Length;
        }
        void SplitFile()
        {
            long LeafsInPart = LeafCount / ThreadCount;

            // check if file is bigger then 1 MB or don't use threads
            if (FilePtr.Length > 1024 * 1024)
                for (int i = 0; i < ThreadCount; i++)
                    FileParts[i] = new FileBlock(LeafsInPart * LeafSize * i,
                                                 LeafsInPart * LeafSize * (i + 1));

            FileParts[ThreadCount - 1].End = FilePtr.Length;
        }