linux doesn't have kqueue. But kqueue is only an API, you could emulate it with io_submit() and io_getevents(). A bigger obstacle is that not all file systems

linux doesn't have kqueue. But kqueue is only an API, you could emulate it with io_submit() and io_getevents(). A bigger obstacle is that not all file systems support asynchronous I/O, the io_*() syscalls won't help you there.