def thread_wrapped_func(func):
    """
    Wraps a process entry point to make it work with OpenMP.
    """

    @wraps(func)
    def decorated_function(*args, **kwargs):
        queue = mp.Queue()

        def _queue_result():
            exception, trace, res = None, None, None
            try:
                res = func(*args, **kwargs)
            except Exception as e:  # pylint: disable=broad-except
                exception = e
                trace = traceback.format_exc()
            queue.put((res, exception, trace))

        start_new_thread(_queue_result, ())
        result, exception, trace = queue.get()
        if exception is None:
            return result
        else:
            assert isinstance(exception, Exception)
            raise exception.__class__(trace)

    return decorated_function

    Wraps a process entry point to make it work with OpenMP.
    
python/dgl/multiprocessing/pytorch.py