-#ifdef USE_KQUEUE
-
-int uloop_init(void)
-{
- if (poll_fd >= 0)
- return 0;
-
- poll_fd = kqueue();
- if (poll_fd < 0)
- return -1;
-
- return 0;
-}
-
-
-static uint16_t get_flags(unsigned int flags, unsigned int mask)
-{
- uint16_t kflags = 0;
-
- if (!(flags & mask))
- return EV_DELETE;
-
- kflags = EV_ADD;
- if (flags & ULOOP_EDGE_TRIGGER)
- kflags |= EV_CLEAR;
-
- return kflags;
-}
-
-static int register_poll(struct uloop_fd *fd, unsigned int flags)
-{
- struct timespec timeout = { 0, 0 };
- struct kevent ev[2];
- unsigned int changed;
- int nev = 0;
-
- changed = fd->kqflags ^ flags;
- if (changed & ULOOP_EDGE_TRIGGER)
- changed |= flags;
-
- if (changed & ULOOP_READ) {
- uint16_t kflags = get_flags(flags, ULOOP_READ);
- EV_SET(&ev[nev++], fd->fd, EVFILT_READ, kflags, 0, 0, fd);
- }
-
- if (changed & ULOOP_WRITE) {
- uint16_t kflags = get_flags(flags, ULOOP_WRITE);
- EV_SET(&ev[nev++], fd->fd, EVFILT_WRITE, kflags, 0, 0, fd);
- }
-
- if (nev && (kevent(poll_fd, ev, nev, NULL, 0, &timeout) == -1))
- return -1;
-
- fd->kqflags = flags;
- return 0;
-}
-
-int uloop_fd_delete(struct uloop_fd *sock)
-{
- sock->registered = false;
- return register_poll(sock, 0);
-}
-
-static void uloop_run_events(int timeout)
-{
- struct kevent events[ULOOP_MAX_EVENTS];
- struct timespec ts;
- int nfds, n;
-
- if (timeout > 0) {
- ts.tv_sec = timeout / 1000;
- ts.tv_nsec = (timeout % 1000) * 1000000;
- }
-
- nfds = kevent(poll_fd, NULL, 0, events, ARRAY_SIZE(events), timeout > 0 ? &ts : NULL);
- for(n = 0; n < nfds; ++n)
- {
- struct uloop_fd *u = events[n].udata;
- unsigned int ev = 0;
-
- if(events[n].flags & EV_ERROR) {
- u->error = true;
- uloop_fd_delete(u);
- }
-
- if(events[n].filter == EVFILT_READ)
- ev |= ULOOP_READ;
- else if (events[n].filter == EVFILT_WRITE)
- ev |= ULOOP_WRITE;
-
- if(events[n].flags & EV_EOF)
- u->eof = true;
- else if (!ev)
- continue;
-
- if(u->cb)
- u->cb(u, ev);
- }
-}