[libvirt] [libvirt-glib] [PATCH 2/4] GVirDomainSnapshot: Add _revert_to

[Christophe Fergeau]

ACK.

On Sat, Aug 02, 2014 at 10:41:47AM +0200, mail at baedert.org wrote:
> From: Timm Bäder <mail at baedert.org>
> 
> Add a way to revert a domain to one of its snapshots.
> ---
>  libvirt-gobject/libvirt-gobject-domain-snapshot.c | 33 +++++++++++++++++++++++
>  libvirt-gobject/libvirt-gobject-domain-snapshot.h | 18 +++++++++++++
>  libvirt-gobject/libvirt-gobject.sym               |  1 +
>  3 files changed, 52 insertions(+)
> 
> diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.c b/libvirt-gobject/libvirt-gobject-domain-snapshot.c
> index 69b6e5a..497288f 100644
> --- a/libvirt-gobject/libvirt-gobject-domain-snapshot.c
> +++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.c
> @@ -264,3 +264,36 @@ gboolean gvir_domain_snapshot_is_current(GVirDomainSnapshot *snapshot,
>  
>      return status;
>  }
> +
> +
> +
> +/**
> + * gvir_domain_snapshot_revert_to:
> + * @snapshot: The domain snapshot
> + * @flags: Bitwise OR of GVirDomainSnapshotRevertFlags
> + * @error: (allow-none): Place-holder for error or NULL
> + *
> + * Returns: TRUE if the snapshot's domain has successfully been
> + * reverted to the given snapshot, FALSE otherwise, in which case
> + * @error will be set.
> + */
> +gboolean gvir_domain_snapshot_revert_to(GVirDomainSnapshot *snapshot,
> +                                        guint flags,
> +                                        GError **error) {
> +    int status;
> +
> +    g_return_val_if_fail(GVIR_IS_DOMAIN_SNAPSHOT(snapshot), FALSE);
> +    g_return_val_if_fail((error == NULL) || (*error == NULL), FALSE);
> +
> +
> +    status = virDomainRevertToSnapshot(snapshot->priv->handle,
> +                                       flags);
> +    if (status != 0) {
> +        gvir_set_error(error, GVIR_DOMAIN_SNAPSHOT_ERROR,
> +                       0, "Failed to revert to snapshot `%s'",
> +                       gvir_domain_snapshot_get_name(snapshot));
> +        return FALSE;
> +    }
> +
> +    return TRUE;
> +}
> diff --git a/libvirt-gobject/libvirt-gobject-domain-snapshot.h b/libvirt-gobject/libvirt-gobject-domain-snapshot.h
> index bf697b3..2db0a38 100644
> --- a/libvirt-gobject/libvirt-gobject-domain-snapshot.h
> +++ b/libvirt-gobject/libvirt-gobject-domain-snapshot.h
> @@ -71,6 +71,19 @@ typedef enum {
>  } GVirDomainSnapshotDeleteFlags;
>  
>  
> +/**
> + * GVirDomainSnapshotRevertFlags:
> + * @GVIR_DOMAIN_SNAPSHOT_REVERT_RUNNING: Run after revert
> + * @GVIR_DOMAIN_SNAPSHOT_REVERT_PAUSED: Pause after revert
> + * @GVIR_DOMAIN_SNAPSHOT_REVERT_FORCE: Allow risky reverts
> + */
> +typedef enum {
> +  GVIR_DOMAIN_SNAPSHOT_REVERT_RUNNING = 1,
> +  GVIR_DOMAIN_SNAPSHOT_REVERT_PAUSED = 2,
> +  GVIR_DOMAIN_SNAPSHOT_REVERT_FORCE = 4
> +} GVirDomainSnapshotRevertFlags;
> +
> +
>  GType gvir_domain_snapshot_get_type(void);
>  GType gvir_domain_snapshot_handle_get_type(void);
>  
> @@ -88,6 +101,11 @@ gboolean gvir_domain_snapshot_delete (GVirDomainSnapshot *snapshot,
>  gboolean gvir_domain_snapshot_is_current(GVirDomainSnapshot *snapshot,
>                                           guint flags,
>                                           GError **error);
> +
> +
> +gboolean gvir_domain_snapshot_revert_to(GVirDomainSnapshot *snapshot,
> +                                        guint flags,
> +                                        GError **error);
>  G_END_DECLS
>  
>  #endif /* __LIBVIRT_GOBJECT_DOMAIN_SNAPSHOT_H__ */
> diff --git a/libvirt-gobject/libvirt-gobject.sym b/libvirt-gobject/libvirt-gobject.sym
> index 641c4da..0ffbb3f 100644
> --- a/libvirt-gobject/libvirt-gobject.sym
> +++ b/libvirt-gobject/libvirt-gobject.sym
> @@ -243,6 +243,7 @@ LIBVIRT_GOBJECT_0.1.9 {
>  	gvir_domain_snapshot_delete;
>  	gvir_domain_snapshot_list_flags_get_type;
>  	gvir_domain_snapshot_is_current;
> +	gvir_domain_snapshot_revert_to;
>  } LIBVIRT_GOBJECT_0.1.5;
>  
>  # .... define new API here using predicted next version number ....
> -- 
> 2.0.3
> 
> --
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> libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
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