Method writev

net/kernel_socket.cpp:112–117

        return DOIO_LOOP(do_send(fd, buf, count, MSG_NOSIGNAL, timeout), BufStep((void*&)buf, count));
    }
    ssize_t writev(const iovec* iov, int iovcnt) override {
        SmartCloneIOV<8> clone(iov, iovcnt);
        iovector_view view(clone.ptr, iovcnt);
        Timeout timeout(m_timeout);
        return DOIO_LOOP(do_sendmsg(fd, tmp_msg_hdr(view), MSG_NOSIGNAL, timeout), BufStepV(view));
    }
    ssize_t recv(void* buf, size_t count, int flags = 0) override {
        return do_recv(fd, buf, count, flags, m_timeout);
    }