Function WaitEventAdjustKqueueAdd

src/backend/storage/ipc/latch.c:1190–1200

#define AccessWaitEvent(k_ev) (*((WaitEvent **)(&(k_ev)->udata)))

static inline void
WaitEventAdjustKqueueAdd(struct kevent *k_ev, int filter, int action,
						 WaitEvent *event)
{
	k_ev->ident = event->fd;
	k_ev->filter = filter;
	k_ev->flags = action;
	k_ev->fflags = 0;
	k_ev->data = 0;
	AccessWaitEvent(k_ev) = event;
}

static inline void
WaitEventAdjustKqueueAddPostmaster(struct kevent *k_ev, WaitEvent *event)