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];
long LeafIndex;
int BlockLeafs;
int i;
ThreadFilePtr.Position = ThreadFileBlock.Start;
while (ThreadFilePtr.Position < ThreadFileBlock.End)
{
LeafIndex = 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;
}
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;
}
