Re: [Qemu-devel] [PATCH v10 12/24] migration: Reference counting recv channels correctly

["Daniel P. Berrangé" <berrange@redhat.com>]

On Wed, Mar 07, 2018 at 11:59:58AM +0100, Juan Quintela wrote:
> Signed-off-by: Juan Quintela <quintela@redhat.com>
> ---
>  migration/socket.c | 11 +++++++++++
>  migration/socket.h |  7 +++++++
>  2 files changed, 18 insertions(+)
> 
> diff --git a/migration/socket.c b/migration/socket.c
> index b12b0a462e..26110739cf 100644
> --- a/migration/socket.c
> +++ b/migration/socket.c
> @@ -27,6 +27,17 @@
>  #include "io/channel-socket.h"
>  #include "trace.h"
>  
> +int socket_recv_channel_ref(QIOChannel *recv)
> +{
> +    object_ref(OBJECT(recv));
> +    return 0;
> +}
> +
> +int socket_recv_channel_unref(QIOChannel *recv)
> +{
> +    object_unref(OBJECT(recv));
> +    return 0;
> +}

These helpers don't really add any value IMHO  - just call object_ref/unref
directly where needed. We don't provide explicit qio_channel_ref() wrappers
around object_ref because they add no value.

>  
>  static SocketAddress *tcp_build_address(const char *host_port, Error **errp)
>  {
> diff --git a/migration/socket.h b/migration/socket.h
> index 6b91e9db38..638a85255a 100644
> --- a/migration/socket.h
> +++ b/migration/socket.h
> @@ -16,6 +16,13 @@
>  
>  #ifndef QEMU_MIGRATION_SOCKET_H
>  #define QEMU_MIGRATION_SOCKET_H
> +
> +#include "io/channel.h"
> +#include "io/task.h"
> +
> +int socket_recv_channel_ref(QIOChannel *recv);
> +int socket_recv_channel_unref(QIOChannel *recv);
> +
>  void tcp_start_incoming_migration(const char *host_port, Error **errp);
>  
>  void tcp_start_outgoing_migration(MigrationState *s, const char *host_port,
> -- 
> 2.14.3
> 
> 

Regards,
Daniel
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