public void Test()
{
Environment.CurrentDirectory = DataFolder;
bool exists = File.Exists(TestFile);
Assert.True(exists, "Test file not found");
var filtersList = new FiltersList();
IFilter inputFilter = filtersList.GetFilter(TestFile);
Assert.IsNotNull(inputFilter, "Filter for test file is not detected");
IMediaImage image = ImageFormat.Detect(inputFilter);
Assert.IsNotNull(image, "Image format for test file is not detected");
Assert.AreEqual(true, image.Open(inputFilter), "Cannot open image for test file");
var opticalInput = image as IOpticalMediaImage;
Assert.IsNotNull(opticalInput, "Image format for test file is not for an optical disc");
var ctx = new Crc32Context();
Checksum trackChecksum = null;
ulong previousTrackEnd = 0;
List <Track> inputTracks = opticalInput.Tracks;
foreach (Track currentTrack in inputTracks)
{
ulong sectors = currentTrack.TrackEndSector - currentTrack.TrackStartSector + 1;
ulong doneSectors = 0;
while (doneSectors < sectors)
{
byte[] sector;
if (sectors - doneSectors >= SECTORS_TO_READ)
{
sector = opticalInput.ReadSectors(doneSectors, SECTORS_TO_READ, currentTrack.TrackSequence);
doneSectors += SECTORS_TO_READ;
}
else
{
sector = opticalInput.ReadSectors(doneSectors, (uint)(sectors - doneSectors),
currentTrack.TrackSequence);
doneSectors += sectors - doneSectors;
}
ctx.Update(sector);
}
previousTrackEnd = currentTrack.TrackEndSector;
}
}
public void Crc32EmptyInstance()
{
byte[] data = new byte[1048576];
FileStream fs = new FileStream(Path.Combine(Consts.TestFilesRoot, "checksums", "empty"), FileMode.Open,
FileAccess.Read);
fs.Read(data, 0, 1048576);
fs.Close();
fs.Dispose();
IChecksum ctx = new Crc32Context();
ctx.Update(data);
byte[] result = ctx.Final();
Assert.AreEqual(ExpectedEmpty, result);
}
public void Crc32RandomInstance()
{
byte[] data = new byte[1048576];
var fs = new FileStream(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "random"),
FileMode.Open, FileAccess.Read);
fs.Read(data, 0, 1048576);
fs.Close();
fs.Dispose();
IChecksum ctx = new Crc32Context();
ctx.Update(data);
byte[] result = ctx.Final();
Assert.AreEqual(_expectedRandom, result);
}
public void EmptyInstance()
{
byte[] data = new byte[1048576];
var fs = new FileStream(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "empty"), FileMode.Open,
FileAccess.Read);
fs.Read(data, 0, 1048576);
fs.Close();
fs.Dispose();
IChecksum ctx = new Crc32Context();
ctx.Update(data);
byte[] result = ctx.Final();
result.Should().BeEquivalentTo(_expectedEmpty);
}
public void Test()
{
Environment.CurrentDirectory = DataFolder;
bool exists = File.Exists(TestFile);
Assert.True(exists, "Test file not found");
var filtersList = new FiltersList();
IFilter inputFilter = filtersList.GetFilter(TestFile);
Assert.IsNotNull(inputFilter, "Filter for test file is not detected");
IMediaImage image = ImageFormat.Detect(inputFilter);
Assert.IsNotNull(image, "Image format for test file is not detected");
Assert.AreEqual(true, image.Open(inputFilter), "Cannot open image for test file");
ulong doneSectors = 0;
var ctx = new Crc32Context();
while (doneSectors < image.Info.Sectors)
{
byte[] sector;
if (image.Info.Sectors - doneSectors >= SECTORS_TO_READ)
{
sector = image.ReadSectors(doneSectors, SECTORS_TO_READ);
doneSectors += SECTORS_TO_READ;
}
else
{
sector = image.ReadSectors(doneSectors, (uint)(image.Info.Sectors - doneSectors));
doneSectors += image.Info.Sectors - doneSectors;
}
ctx.Update(sector);
}
}
public bool?VerifyMediaImage()
{
if (_discImage.DiscHashes.Count == 0)
{
return(null);
}
// Read up to 1 MiB at a time for verification
const int verifySize = 1024 * 1024;
long readBytes;
byte[] verifyBytes;
IFilter[] filters = _discImage.Tracks.OrderBy(t => t.Sequence).Select(t => t.TrackFile.DataFilter).
Distinct().ToArray();
if (_discImage.DiscHashes.TryGetValue("sha1", out string sha1))
{
var ctx = new Sha1Context();
foreach (IFilter filter in filters)
{
Stream stream = filter.GetDataForkStream();
readBytes = 0;
verifyBytes = new byte[verifySize];
while (readBytes + verifySize < stream.Length)
{
stream.Read(verifyBytes, 0, verifyBytes.Length);
ctx.Update(verifyBytes);
readBytes += verifyBytes.LongLength;
}
verifyBytes = new byte[stream.Length - readBytes];
stream.Read(verifyBytes, 0, verifyBytes.Length);
ctx.Update(verifyBytes);
}
string verifySha1 = ctx.End();
AaruConsole.DebugWriteLine("CDRWin plugin", "Calculated SHA1: {0}", verifySha1);
AaruConsole.DebugWriteLine("CDRWin plugin", "Expected SHA1: {0}", sha1);
return(verifySha1 == sha1);
}
if (_discImage.DiscHashes.TryGetValue("md5", out string md5))
{
var ctx = new Md5Context();
foreach (IFilter filter in filters)
{
Stream stream = filter.GetDataForkStream();
readBytes = 0;
verifyBytes = new byte[verifySize];
while (readBytes + verifySize < stream.Length)
{
stream.Read(verifyBytes, 0, verifyBytes.Length);
ctx.Update(verifyBytes);
readBytes += verifyBytes.LongLength;
}
verifyBytes = new byte[stream.Length - readBytes];
stream.Read(verifyBytes, 0, verifyBytes.Length);
ctx.Update(verifyBytes);
}
string verifyMd5 = ctx.End();
AaruConsole.DebugWriteLine("CDRWin plugin", "Calculated MD5: {0}", verifyMd5);
AaruConsole.DebugWriteLine("CDRWin plugin", "Expected MD5: {0}", md5);
return(verifyMd5 == md5);
}
if (_discImage.DiscHashes.TryGetValue("crc32", out string crc32))
{
var ctx = new Crc32Context();
foreach (IFilter filter in filters)
{
Stream stream = filter.GetDataForkStream();
readBytes = 0;
verifyBytes = new byte[verifySize];
while (readBytes + verifySize < stream.Length)
{
stream.Read(verifyBytes, 0, verifyBytes.Length);
ctx.Update(verifyBytes);
readBytes += verifyBytes.LongLength;
}
verifyBytes = new byte[stream.Length - readBytes];
stream.Read(verifyBytes, 0, verifyBytes.Length);
ctx.Update(verifyBytes);
}
string verifyCrc = ctx.End();
AaruConsole.DebugWriteLine("CDRWin plugin", "Calculated CRC32: {0}", verifyCrc);
AaruConsole.DebugWriteLine("CDRWin plugin", "Expected CRC32: {0}", crc32);
return(verifyCrc == crc32);
}
foreach (string hash in _discImage.DiscHashes.Keys)
{
AaruConsole.DebugWriteLine("CDRWin plugin", "Found unsupported hash {0}", hash);
}
return(null);
}
public static BenchmarkResults Do(int bufferSize, int blockSize)
{
BenchmarkResults results = new BenchmarkResults
{
Entries = new Dictionary <string, BenchmarkEntry>(),
MinMemory = long.MaxValue,
MaxMemory = 0,
SeparateTime = 0
};
MemoryStream ms = new MemoryStream(bufferSize);
Random rnd = new Random();
DateTime start;
DateTime end;
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Writing block {0} of {1} with random data.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
rnd.NextBytes(tmp);
ms.Write(tmp, 0, blockSize);
}
EndProgress();
end = DateTime.Now;
results.FillTime = (end - start).TotalSeconds;
results.FillSpeed = bufferSize / 1048576.0 / (end - start).TotalSeconds;
ms.Seek(0, SeekOrigin.Begin);
long mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Reading block {0} of {1}.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
}
EndProgress();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.ReadTime = (end - start).TotalSeconds;
results.ReadSpeed = bufferSize / 1048576.0 / (end - start).TotalSeconds;
#region Adler32
IChecksum ctx = new Adler32Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with Adler32.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("Adler32",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion Adler32
#region Fletcher16
ctx = new Fletcher16Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with Fletcher-16.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("Fletcher16",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion Fletcher16
#region Fletcher32
ctx = new Fletcher32Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with Fletcher-32.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("Fletcher32",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion Fletcher32
#region CRC16
ctx = new Crc16Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with CRC16.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("CRC16",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion CRC16
#region CRC32
ctx = new Crc32Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with CRC32.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("CRC32",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion CRC32
#region CRC64
ctx = new Crc64Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with CRC64.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("CRC64",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion CRC64
#region MD5
ctx = new Md5Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with MD5.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("MD5",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion MD5
#if !NETSTANDARD2_0
#region RIPEMD160
ctx = new Ripemd160Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with RIPEMD160.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("RIPEMD160",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion RIPEMD160
#endif
#region SHA1
ctx = new Sha1Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with SHA1.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("SHA1",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion SHA1
#region SHA256
ctx = new Sha256Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with SHA256.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("SHA256",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion SHA256
#region SHA384
ctx = new Sha384Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with SHA384.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("SHA384",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion SHA384
#region SHA512
ctx = new Sha512Context();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with SHA512.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("SHA512",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion SHA512
#region SpamSum
ctx = new SpamSumContext();
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Checksumming block {0} of {1} with SpamSum.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
ctx.Update(tmp);
}
EndProgress();
ctx.End();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.Entries.Add("SpamSum",
new BenchmarkEntry
{
TimeSpan = (end - start).TotalSeconds,
Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds
});
results.SeparateTime += (end - start).TotalSeconds;
#endregion SpamSum
#region Entropy
ulong[] entTable = new ulong[256];
ms.Seek(0, SeekOrigin.Begin);
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
start = DateTime.Now;
InitProgress();
for (int i = 0; i < bufferSize / blockSize; i++)
{
UpdateProgress("Entropying block {0} of {1}.", i + 1, bufferSize / blockSize);
byte[] tmp = new byte[blockSize];
ms.Read(tmp, 0, blockSize);
foreach (byte b in tmp)
{
entTable[b]++;
}
}
EndProgress();
end = DateTime.Now;
mem = GC.GetTotalMemory(false);
if (mem > results.MaxMemory)
{
results.MaxMemory = mem;
}
if (mem < results.MinMemory)
{
results.MinMemory = mem;
}
results.EntropyTime = (end - start).TotalSeconds;
results.EntropySpeed = bufferSize / 1048576.0 / (end - start).TotalSeconds;
#endregion Entropy
/*
#region Multitasking
* start = DateTime.Now;
* Checksum allChecksums = new Checksum();
* InitProgress();
* for(int i = 0; i < bufferSize / blockSize; i++)
* {
* UpdateProgress("Checksumming block {0} of {1} with all algorithms at the same time.", i + 1,
* bufferSize / blockSize);
* byte[] tmp = new byte[blockSize];
* ms.Read(tmp, 0, blockSize);
*
* allChecksums.Update(tmp);
* }
*
* EndProgress();
*
* allChecksums.End();
* end = DateTime.Now;
* mem = GC.GetTotalMemory(false);
* if(mem > results.MaxMemory) results.MaxMemory = mem;
* if(mem < results.MinMemory) results.MinMemory = mem;
*
* results.TotalTime = (end - start).TotalSeconds;
* results.TotalSpeed = bufferSize / 1048576.0 / results.TotalTime;
#endregion
*/
results.SeparateSpeed = bufferSize / 1048576.0 / results.SeparateTime;
return(results);
}