func (p poller) Add(fd int, flags Flags) error {
var ev C.struct_kevent
ev.ident = C.uintptr_t(fd)
ev.flags = C.EV_ADD
if flags&In != 0 {
ev.filter |= C.EVFILT_READ
}
if flags&Out != 0 {
ev.filter |= C.EVFILT_WRITE
}
if flags&OneShot != 0 {
ev.flags |= C.EV_ONESHOT
}
return p.applyEvent(&ev)
}
func (p poller) Delete(fd int) error {
var ev C.struct_kevent
ev.ident = C.uintptr_t(fd)
ev.filter = C.EVFILT_READ | C.EVFILT_WRITE
ev.flags = C.EV_DELETE
return p.applyEvent(&ev)
}