private async Task RunSelfTest()
{
SetBusy(true);
m_abortFlag.Reset();
try
{
await Task.Run(() => MHash384.SelfTest(m_abortFlag));
String message = "Self-test completed successfully.";
Edit_HashValue.Text = message;
MessageBox.Show(message, "Self-test", MessageBoxButton.OK, MessageBoxImage.Information);
}
catch (OperationCanceledException err)
{
String message = String.IsNullOrEmpty(err.Message) ? err.GetType().FullName : err.Message;
Edit_HashValue.Text = message;
MessageBox.Show(message, "Error", MessageBoxButton.OK, MessageBoxImage.Warning);
}
catch (Exception err)
{
String message = String.IsNullOrEmpty(err.Message) ? err.GetType().FullName : err.Message;
Edit_HashValue.Text = "Failure: " + message;
}
finally
{
SetBusy(false);
}
}
private void Window_Loaded(object sender, RoutedEventArgs e)
{
ushort major, minor, patch;
MHash384.GetVersion(out major, out minor, out patch);
Title += String.Format(" v{0:D}.{1:D}.{2:D}", major, minor, patch);
KeyDown += new KeyEventHandler(KeyDownHandler);
}
private String ComputeHash(Dispatcher dispatcher, String fileName, ProgressHandler progressHandler)
{
MHash384 digest = new MHash384();
FileInfo fileInfo = new FileInfo(fileName);
Stopwatch stopWatch = new Stopwatch();
m_abortFlag.Reset();
using (BufferedStream stream = new BufferedStream(fileInfo.OpenRead(), BUFF_SIZE))
{
double progress = 0.0;
ushort update = 0;
Action updateAction = new Action(() => progressHandler(progress, stopWatch.ElapsedMilliseconds / 1000.0));
Task updateTask = null;
stopWatch.Start();
for (;;)
{
if ((++update & 0x1FF) == 0)
{
if (m_abortFlag.WaitOne(TimeSpan.Zero))
{
throw new OperationCanceledException("The operation was cancelled by the user!");
}
AwaitTaskSynchronously(updateTask);
progress = ((double)stream.Position) / ((double)fileInfo.Length);
updateTask = dispatcher.BeginInvoke(DispatcherPriority.Background, updateAction).Task;
}
if (!digest.Update(stream, BUFF_SIZE))
{
break; /*EOF*/
}
}
stopWatch.Stop();
AwaitTaskSynchronously(updateTask);
dispatcher.Invoke(() => progressHandler(1.0, stopWatch.ElapsedMilliseconds / 1000.0));
return(digest.ToString());
}
}
