private static IEnumerable <string> EnumerateFileSystemIterator(
LongPath path, string mask, bool enumerateDirectories, bool enumerateFiles)
{
if (string.IsNullOrEmpty(mask) || mask == ".")
{
mask = "*";
}
string unprefixedPath = path.UnPrefixedPathString;
WindowsNative.WIN32_FIND_DATA findData;
using (FindFileHandle handle = BeginFind(Path.Combine(path.PathString, mask), out findData))
{
if (handle == null)
{
yield break;
}
do
{
string fileName = findData.cFileName;
if (IsDirectory(findData.dwFileAttributes))
{
if (enumerateDirectories && IsRealFolder(fileName))
{
yield return(Path.Combine(unprefixedPath, fileName));
}
}
else
{
if (enumerateFiles)
{
yield return(Path.Combine(unprefixedPath, fileName));
}
}
} while (WindowsNative.FindNextFile(handle, out findData));
int errorCode = Marshal.GetLastWin32Error();
if (errorCode != WindowsNative.ERROR_NO_MORE_FILES)
{
WindowsNative.HandleWindowsError(errorCode);
}
}
}