private string HashCheckThread(string filePath, HashType hashType, IProgress <float> progress, CancellationToken ct)
{
using (FileStream stream = new FileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (HashAlgorithm hash = GetHashAlgorithm(hashType))
using (CryptoStream cs = new CryptoStream(stream, hash, CryptoStreamMode.Read))
{
long bytesRead, totalRead = 0;
byte[] buffer = new byte[8192];
Stopwatch timer = Stopwatch.StartNew();
while ((bytesRead = cs.Read(buffer, 0, buffer.Length)) > 0 && !ct.IsCancellationRequested)
{
totalRead += bytesRead;
if (timer.ElapsedMilliseconds > 200)
{
float percentage = (float)totalRead / stream.Length * 100;
progress.Report(percentage);
timer.Reset();
timer.Start();
}
}
if (ct.IsCancellationRequested)
{
progress.Report(0);
ct.ThrowIfCancellationRequested();
}
else
{
progress.Report(100);
string[] hex = TranslatorHelper.BytesToHexadecimal(hash.Hash);
return(string.Concat(hex));
}
}
return(null);
}
private void CheckThread(object sender, DoWorkEventArgs e)
{
using (FileStream stream = new FileStream(FilePath, FileMode.Open, FileAccess.Read, FileShare.Read))
using (HashAlgorithm hash = GetHashAlgorithm(HashType))
using (CryptoStream cs = new CryptoStream(stream, hash, CryptoStreamMode.Read))
{
long bytesRead, totalRead = 0;
byte[] buffer = new byte[8192];
Stopwatch timer = Stopwatch.StartNew();
while ((bytesRead = cs.Read(buffer, 0, buffer.Length)) > 0 && !bw.CancellationPending)
{
totalRead += bytesRead;
if (timer.ElapsedMilliseconds > 200)
{
float progress = (float)totalRead / stream.Length * 100;
bw.ReportProgress(0, progress);
timer.Reset();
timer.Start();
}
}
if (bw.CancellationPending)
{
bw.ReportProgress(0, 0f);
e.Cancel = true;
}
else
{
bw.ReportProgress(0, 100f);
string[] hex = TranslatorHelper.BytesToHexadecimal(hash.Hash);
e.Result = string.Concat(hex);
}
}
}
