Function libcoap_sys::coap_io_process_with_fds

pub unsafe extern "C" fn coap_io_process_with_fds(
    ctx: *mut coap_context_t,
    timeout_ms: u32,
    nfds: c_int,
    readfds: *mut fd_set,
    writefds: *mut fd_set,
    exceptfds: *mut fd_set
) -> c_int