#define backend_fudge ((loop)->backend_fudge)
#define backend_modify ((loop)->backend_modify)
#define backend_poll ((loop)->backend_poll)
#define backend_fd ((loop)->backend_fd)
#define backend_fudge ((loop)->backend_fudge)
#define backend_modify ((loop)->backend_modify)
#define backend_poll ((loop)->backend_poll)
#define backend_fd ((loop)->backend_fd)