Function clone_queue

vm-virtio/src/lib.rs:163–179

Helper for cloning a Queue since QueueState doesn't derive Clone

(queue: &Queue)

/// Helper for cloning a Queue since QueueState doesn't derive Clone
pub fn clone_queue(queue: &Queue) -> Queue {
    let mut q = Queue::new(queue.max_size()).unwrap();

    q.set_next_avail(queue.next_avail());
    q.set_next_used(queue.next_used());
    q.set_event_idx(queue.event_idx_enabled());
    q.set_size(queue.size());
    q.set_ready(queue.ready());
    q.try_set_desc_table_address(GuestAddress(queue.desc_table()))
        .unwrap();
    q.try_set_avail_ring_address(GuestAddress(queue.avail_ring()))
        .unwrap();
    q.try_set_used_ring_address(GuestAddress(queue.used_ring()))
        .unwrap();

    q
}