6cb6888404
nmtst_main_context_iterate_until() is a macro, and we don't want to restrict the valid integer type (or range) of the "timeout_msec" argument. In particular, if the user calculates a timeout with "timestamp_msec - now_msec", the resulting "timeout_msec" might be a negative gint64. We should handle that gracefully, and not let it be cast to a huge unsigned int.