Re: [Qemu-devel] [PATCH 3/5] colo-compare: release all unhandled packets in finalize function

[Jason Wang <jasowang@redhat.com>]

On 2017年02月15日 16:34, zhanghailiang wrote:
> We should release all unhandled packets before finalize colo compare.
> Besides, we need to free connection_track_table, or there will be
> a memory leak bug.
>
> Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
> ---
>   net/colo-compare.c | 20 ++++++++++++++++++++
>   1 file changed, 20 insertions(+)
>
> diff --git a/net/colo-compare.c b/net/colo-compare.c
> index a16e2d5..809bad3 100644
> --- a/net/colo-compare.c
> +++ b/net/colo-compare.c
> @@ -676,6 +676,23 @@ static void colo_compare_complete(UserCreatable *uc, Error **errp)
>       return;
>   }
>   
> +static void colo_release_packets(void *opaque, void *user_data)
> +{
> +    CompareState *s = user_data;
> +    Connection *conn = opaque;
> +    Packet *pkt = NULL;
> +
> +    while (!g_queue_is_empty(&conn->primary_list)) {
> +        pkt = g_queue_pop_head(&conn->primary_list);
> +        compare_chr_send(&s->chr_out, pkt->data, pkt->size);

Any reason to send packets here?

Thanks

> +        packet_destroy(pkt, NULL);
> +    }
> +    while (!g_queue_is_empty(&conn->secondary_list)) {
> +        pkt = g_queue_pop_head(&conn->secondary_list);
> +        packet_destroy(pkt, NULL);
> +    }
> +}
> +
>   static void colo_compare_class_init(ObjectClass *oc, void *data)
>   {
>       UserCreatableClass *ucc = USER_CREATABLE_CLASS(oc);
> @@ -707,9 +724,12 @@ static void colo_compare_finalize(Object *obj)
>       g_main_loop_quit(s->compare_loop);
>       qemu_thread_join(&s->thread);
>   
> +    /* Release all unhandled packets after compare thead exited */
> +    g_queue_foreach(&s->conn_list, colo_release_packets, s);
>   
>       g_queue_free(&s->conn_list);
>   
> +    g_hash_table_destroy(s->connection_track_table);
>       g_free(s->pri_indev);
>       g_free(s->sec_indev);
>       g_free(s->outdev);