mark_arrows
static int mark_arrows(struct fme *fmep, struct event *ep, int mark,
(void) mark_arrows(fmep, ep2, mark, 0, NULL,
if (mark_arrows(fmep, ep2, PARENT_WAIT,
if (mark_arrows(fmep, ep2, mark, at_latest_by,
if (mark_arrows(fmep, fault_event, CREDIBLE_EFFECT, at_latest_by,
(void) mark_arrows(fmep, fault_event, 0, 0, NULL, 0);
(void) mark_arrows(fmep, fault_event, 0, 0, NULL, 1);