private static IEnumerable <T> EnumFilter <T, U>(FindFirst find_first, FindNext find_next,
FindClose find_close, GetNextOffset <U> get_next, CreateObject <T, U> create) where U : struct
{
using (var buffer = new SafeStructureInOutBuffer <U>(128 * 1024, true))
{
NtStatus no_more_hresult = Win32Error.ERROR_NO_MORE_ITEMS.ToHresult();
NtResult <IntPtr> handle = new NtResult <IntPtr>(no_more_hresult, IntPtr.Zero);
var list = new List <T>();
try
{
handle = find_first(buffer);
var status = handle.Status;
while (status != no_more_hresult)
{
if (status != NtStatus.STATUS_SUCCESS)
{
throw new NtException(status);
}
var next_buffer = buffer;
do
{
list.Add(create(next_buffer));
int offset = get_next(next_buffer);
if (offset == 0)
{
break;
}
next_buffer = next_buffer.GetStructAtOffset <U>(offset);
}while (true);
status = find_next(handle.Result, buffer);
}
}
finally
{
if (handle.IsSuccess)
{
find_close(handle.Result);
}
}
return(list.AsReadOnly());
}
}
private void InitializeDelegates()
{
_createFileDelegate = new CreateFileADelegate(CreateFileHook);
_createDirectoryDelegate = new CreateDirectoryDelegate(CreateDirectoryHook);
_deleteFileDelegate = new DeleteFileDelegate(DeleteFileHook);
_removeDirectoryDelegate = new RemoveDirectoryDelegate(RemoveDirectoryHook);
_moveFileDelegate = new MoveFileDelegate(MoveFileHook);
_readFileDelegate = new ReadFileDelegate(ReadFileHook);
_closeHandleDelegate = new CloseHandleDelegate(CloseHandleHook);
_getFileAttributesDelegate = new GetFileAttributesDelegate(GetFileAttributesHook);
_getFileTypeDelegate = new GetFileTypeDelegate(GetFileTypeHook);
_setFilePointerDelegate = new SetFilePointerDelegate(SetFilePointerHook);
_getFileInformationByHandleDelegate = new GetFileInformationByHandleDelegate(GetFileInformationByHandleHook);
_setEndOfFileDelegate = new SetEndOfFileDelegate(SetEndOfFileHook);
_findFirstFile = new FindFirstFile(FindFirstFileHook);
_findNextFile = new FindNextFile(FindNextFileHook);
_findClose = new FindClose(FindCloseHook);
_tioPathAdd = new TioPathAdd(TioPathAddHook);
}