Method do_sendfile

net/kernel_socket.cpp:938–942

    }

    ssize_t do_sendfile(int in_fd, off_t offset, size_t count) {
        auto timeout = m_timeout;
        return etdoio(LAMBDA(::sendfile(this->fd, in_fd, &offset, count)),
                      LAMBDA_TIMEOUT(wait_for_writable(timeout)));
    }
};

class ETKernelSocketClient : public KernelSocketClient {