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33 changes: 20 additions & 13 deletions src/Files.App/Utils/Storage/Operations/FileSizeCalculator.cs
Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@

using System.Collections.Concurrent;
using System.IO;
using System.Runtime.InteropServices;
using Windows.Win32;
using Windows.Win32.Storage.FileSystem;

Expand All @@ -29,12 +30,12 @@ await Parallel.ForEachAsync(
_paths,
cancellationToken,
async (path, token) => await Task.Factory.StartNew(() =>
{
ComputeSizeRecursively(path, token);
},
token,
TaskCreationOptions.LongRunning,
TaskScheduler.Default));
{
ComputeSizeRecursively(path, token);
},
token,
TaskCreationOptions.LongRunning,
TaskScheduler.Default));

unsafe void ComputeSizeRecursively(string path, CancellationToken token)
{
Expand Down Expand Up @@ -73,24 +74,30 @@ unsafe void ComputeSizeRecursively(string path, CancellationToken token)

var itemPath = Path.Combine(directory, findData.cFileName.ToString());

if (attributes.HasFlag(FILE_FLAGS_AND_ATTRIBUTES.FILE_ATTRIBUTE_DIRECTORY))
// Skip current and parent directory entries
var fileName = findData.cFileName.ToString();
if (fileName.Equals(".", StringComparison.OrdinalIgnoreCase) ||
fileName.Equals("..", StringComparison.OrdinalIgnoreCase))
{
ComputeFileSize(itemPath);
continue;
}
else if (findData.cFileName.ToString() is string fileName &&
fileName.Equals(".", StringComparison.OrdinalIgnoreCase) &&
fileName.Equals("..", StringComparison.OrdinalIgnoreCase))

if (attributes.HasFlag(FILE_FLAGS_AND_ATTRIBUTES.FILE_ATTRIBUTE_DIRECTORY))
{
queue.Enqueue(itemPath);
}
else
{
ComputeFileSize(itemPath);
}

if (token.IsCancellationRequested)
break;
}
while (PInvoke.FindNextFile(hFile, &findData));
}

PInvoke.CloseHandle(hFile);
PInvoke.FindClose(hFile);
}
}
}
}
Expand Down
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