public bool Run(IList <string> folders, IList <string> files)
{
var cancellation = new CancellationTokenSource();
_cancel = cancellation.Token;
using (var task = Task.Factory.StartNew(() =>
{
// do folders (parallel)
if (folders.Count > 0)
{
//! do not use aggregation, see file remarks
Parallel.ForEach(folders, new ParallelOptions()
{
CancellationToken = _cancel
}, folder =>
{
Check();
_Result.Add(new FolderItem()
{
Name = Path.GetFileName(folder), Size = CalculateFolderSize(folder)
});
_progress.SetProgressValue(_Result.Count, folders.Count);
});
}
Check();
// do files (serial)
if (files.Count > 0)
{
_progress.Activity = "Computing file sizes";
foreach (var file in files)
{
try
{
var info = new FileInfo(file);
_Result.Add(new FolderItem()
{
Name = info.Name, Size = info.Length
});
}
catch (Exception ex)
{
_Errors.Add(ex);
}
}
}
Check();
// done
_progress.Complete();
}, _cancel))
{
if (!task.Wait(750))
{
_progress.Title = "Computing sizes";
_progress.Canceled += delegate
{
cancellation.Cancel(true);
};
_progress.CanCancel = true;
_progress.Show();
}
try
{
task.Wait();
}
catch (AggregateException)
{ }
return(task.Status == TaskStatus.RanToCompletion);
}
}