ZYD_FLAG_RUNNING
if ((sc->sc_flags & ZYD_FLAG_RUNNING) == 0)
if ((sc->sc_flags & ZYD_FLAG_RUNNING) == 0) {
if (!(sc->sc_flags & ZYD_FLAG_RUNNING)) {
if ((sc->sc_flags & ZYD_FLAG_RUNNING) == 0) {
} else if (sc->sc_flags & ZYD_FLAG_RUNNING)
if (sc->sc_flags & ZYD_FLAG_RUNNING)
sc->sc_flags |= ZYD_FLAG_RUNNING;
sc->sc_flags &= ~ZYD_FLAG_RUNNING;