FreeBSD Manual Pages
- coap_io(3), coap_io_process(3), coap_io_process_with_fds(3), coap_context_get_coap_fd(3), coap_io_prepare_io(3), coap_io_do_io(3), coap_io_prepare_epoll(3), coap_io_do_epoll(3), coap_io_pending(3), coap_can_exit(3)
- Work with CoAP I/O to do the packet send and receives