public HasherBackgroundWorker(RDHash.RDHasher hasher, long iterations, IDataSet hashmap, int blockSize, int seed)
{
HashMap = hashmap;
BlockSize = blockSize;
Iterations = iterations;
Hasher = hasher;
Rnd = new Random(seed);
ThisThread = new Thread(DoThread);
ThisThread.Name = "BackgroundThread_worker";
ThisThread.Priority = ThreadPriority.BelowNormal;
ThisThread.IsBackground = true;
}
static void Main(string[] args)
{
Console.WriteLine("RDHash Library static collision check tool");
Console.WriteLine("Blocksize is {0} bytes long.", BLOCK_SIZE.ToString("N0"));
RDHash.RDHasher hasher = new RDHash.RDHasher();
hasher.MinHashSize = 14;
CollisionFileStream = new FileStream(".\\collisions.log", FileMode.Append, FileAccess.Write, FileShare.Read);
CollisionFileWriter = new StreamWriter(CollisionFileStream, Encoding.ASCII, 4096, true);
double n = Math.Pow(hasher.EncodeWheel.GlyphCount, hasher.MinHashSize);
double k = ITERATIONS * REPETITIONS;
double exponent = (-k * (k - 1)) / (2 * n);
double chance = 1 - Math.Pow(Math.E, exponent);
Console.WriteLine("Using {0} total CPU threads.", TOTAL_THREADS.ToString("N0"));
Console.WriteLine("Clash chance: {0} %", (chance * 100).ToString("N5"));
Console.WriteLine();
Console.WriteLine();
Random rng = new Random();
for (int repetition = 1; repetition <= REPETITIONS; repetition++)
{
CurrentRepetition = repetition;
LastLogAddress = Console.CursorTop;
Stopwatch sw = new Stopwatch();
UpdateStats(null, true);
sw.Start();
IDataSet hashes;
if (USE_HSD)
{
hashes = new DoubleHashedDataSetWrapper(ITERATIONS, true);
}
else
{
hashes = new HashSetWrapper(ITERATIONS);
}
Threads = new List <HasherBackgroundWorker>();
long iterations = ITERATIONS;
while (iterations > 0)
{
long slice = (ITERATIONS / TOTAL_THREADS);
var worker = new HasherBackgroundWorker(hasher, Math.Min(slice, iterations), hashes, BLOCK_SIZE, rng.Next(int.MinValue, int.MaxValue));
worker.PrintMessage += OnThreadPrintMessage;
worker.PrintCollisionMessage += OnThreadPrintCollisionMessage;
Threads.Add(worker);
iterations -= slice;
}
for (int i = 0; i < Threads.Count; i++)
{
Threads[i].Start();
}
while (IsRunning)
{
Thread.Sleep(UI_UPDATE_DELAY);
UpdateStats(Threads[0]);
}
sw.Stop();
PrintMessage(string.Format("Pass {0} of {1}. {2} hashes calculated. {3} collisions found. {4}.{5} time spent.",
repetition.ToString("N0"),
REPETITIONS.ToString("N0"),
hashes.Count.ToString("N0"),
TotalCollisions.ToString("N0"),
sw.Elapsed.ToString("hh\\:mm\\:ss"),
sw.Elapsed.Milliseconds.ToString()));
Threads.Clear();
hashes.Clear();
GC.Collect();
}
CollisionFileWriter.Flush();
CollisionFileWriter.Dispose();
CollisionFileStream.Flush();
CollisionFileStream.Dispose();
PrintMessage("");
PrintMessage("Operation completed.");
PrintMessage("- Press any key to exit -");
Console.ReadKey();
}
