public static IEnumerable<NativeMethods.FileFindData> FindFiles(String sDirectory, EntryTestRoutine recurseTest,
EntryTestRoutine filterTest)
{
recurseTest = recurseTest ?? RecursionTest;
filterTest = filterTest ?? ((ds, fp) => FitsMask(ds, "*"));
String usemask = Path.Combine(sDirectory, "*");
foreach (var iterate in FindFiles(usemask))
{
if (((FileAttributes) iterate.dwFileAttributes).HasFlag(FileAttributes.Directory))
{
String subdir = Path.Combine(sDirectory, iterate.Filename);
if (recurseTest(iterate.Filename, subdir))
{
//recursive call.
foreach (var subiterate in FindFiles(subdir, recurseTest, filterTest))
{
var copied = subiterate;
copied.FullFileName = Path.Combine(subdir, subiterate.FullFileName);
yield return copied;
}
}
}
else
{
String fullpath = Path.Combine(sDirectory, iterate.Filename);
if (filterTest(iterate.Filename, fullpath))
{
NativeMethods.FileFindData ffd = new NativeMethods.FileFindData();
ffd.APIStructure = iterate;
ffd.FullFileName = fullpath;
yield return ffd;
}
}
}
}
public static IEnumerable<NativeMethods.FileFindData> FindFilesAsync(String sDirectory, EntryTestRoutine recurseTest,
EntryTestRoutine filterTest)
{
recurseTest = recurseTest ?? RecursionTest;
filterTest = filterTest ?? ((ds, fp) => FitsMask(ds, "*"));
String usemask = Path.Combine(sDirectory, "*");
var gotresult = FindFilesAsync(usemask);
var enumerator = gotresult.GetEnumerator();
Task<bool> asyncresult;
(asyncresult = enumerator.MoveNext()).Wait();
var iterate = enumerator.Current;
bool docontinue = false;
do
{
iterate = enumerator.Current;
var AdvanceResult = enumerator.MoveNext();
//AdvanceResult.Start();
if (((FileAttributes) iterate.dwFileAttributes).HasFlag(FileAttributes.Directory))
{
String subdir = Path.Combine(sDirectory, iterate.Filename);
if (recurseTest(iterate.Filename, subdir))
{
//recursive call.
foreach (var subiterate in FindFilesAsync(subdir, recurseTest, filterTest))
{
var copied = subiterate;
copied.FullFileName = Path.Combine(subdir, subiterate.FullFileName);
yield return copied;
}
}
}
else
{
String fullpath = Path.Combine(sDirectory, iterate.Filename);
if (filterTest(iterate.Filename, fullpath))
{
NativeMethods.FileFindData ffd = new NativeMethods.FileFindData();
ffd.APIStructure = iterate;
ffd.FullFileName = fullpath;
yield return ffd;
}
}
AdvanceResult.Wait();
docontinue = AdvanceResult.Result;
} while (docontinue);
}