[libvirt] [glib PATCH] domain config: add API to set the filesystem image format
Christophe Fergeau
cfergeau at redhat.com
Mon Jun 15 15:12:05 UTC 2015
Hey,
On Mon, Jun 15, 2015 at 03:37:12PM +0200, Cédric Bosdonnat wrote:
> Add the gvir_config_domain_filesys_set_driver_format function to allow
> setting nbd driver type + image format for containers filesystems.
> ---
> libvirt-gconfig/libvirt-gconfig-domain-filesys.c | 30 +++++++++++++++++++++++-
> libvirt-gconfig/libvirt-gconfig-domain-filesys.h | 4 ++++
> libvirt-gconfig/libvirt-gconfig.sym | 5 ++++
> 3 files changed, 38 insertions(+), 1 deletion(-)
>
> diff --git a/libvirt-gconfig/libvirt-gconfig-domain-filesys.c b/libvirt-gconfig/libvirt-gconfig-domain-filesys.c
> index 006a407..fffbe88 100644
> --- a/libvirt-gconfig/libvirt-gconfig-domain-filesys.c
> +++ b/libvirt-gconfig/libvirt-gconfig-domain-filesys.c
> @@ -125,7 +125,9 @@ void gvir_config_domain_filesys_set_driver_type(GVirConfigDomainFilesys *filesys
> GVirConfigObject *node;
>
> g_return_if_fail(GVIR_CONFIG_IS_DOMAIN_FILESYS(filesys));
> - node = gvir_config_object_add_child(GVIR_CONFIG_OBJECT(filesys), "driver");
> + if (!(node = gvir_config_object_get_child(GVIR_CONFIG_OBJECT(filesys), "driver"))) {
> + node = gvir_config_object_add_child(GVIR_CONFIG_OBJECT(filesys), "driver");
> + }
I believe you could use gvir_config_object_replace_child() here? This
should be split in a different commit.
> g_return_if_fail(GVIR_CONFIG_IS_OBJECT(node));
> if (type != GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_DEFAULT)
> gvir_config_object_set_attribute_with_type(
> @@ -137,6 +139,32 @@ void gvir_config_domain_filesys_set_driver_type(GVirConfigDomainFilesys *filesys
> g_object_unref(G_OBJECT(node));
> }
>
> +void gvir_config_domain_filesys_set_driver_format(GVirConfigDomainFilesys *filesys,
> + GVirConfigDomainDiskFormat format)
> +{
> + GVirConfigObject *node;
> + GVirConfigDomainFilesysDriverType type = GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_LOOP;
> +
> + g_return_if_fail(GVIR_CONFIG_IS_DOMAIN_FILESYS(filesys));
> + if (!(node = gvir_config_object_get_child(GVIR_CONFIG_OBJECT(filesys), "driver"))) {
> + node = gvir_config_object_add_child(GVIR_CONFIG_OBJECT(filesys), "driver");
> + }
_replace_child() ?
> + g_return_if_fail(GVIR_CONFIG_IS_OBJECT(node));
> + if (format != GVIR_CONFIG_DOMAIN_DISK_FORMAT_RAW)
> + type = GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_NBD;
> +
> + gvir_config_object_set_attribute_with_type(
> + node, "type",
> + GVIR_CONFIG_TYPE_DOMAIN_FILESYS_DRIVER_TYPE,
> + type, NULL);
> +
> + gvir_config_object_set_attribute_with_type(
> + node, "format",
> + GVIR_CONFIG_TYPE_DOMAIN_DISK_FORMAT,
> + format, NULL);
These 2 calls can probably be grouped in a single one?
I haven't looked if there are other similar situations in
libvirt-gconfig, but silently overwriting a preexisting "type" attribute
with something different when setting the format does not seem very nice
to the library user.
> + g_object_unref(G_OBJECT(node));
> +}
> +
> void gvir_config_domain_filesys_set_source(GVirConfigDomainFilesys *filesys,
> const char *source)
> {
> diff --git a/libvirt-gconfig/libvirt-gconfig-domain-filesys.h b/libvirt-gconfig/libvirt-gconfig-domain-filesys.h
> index 4f3973e..18c4069 100644
> --- a/libvirt-gconfig/libvirt-gconfig-domain-filesys.h
> +++ b/libvirt-gconfig/libvirt-gconfig-domain-filesys.h
> @@ -75,6 +75,8 @@ typedef enum {
> GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_DEFAULT,
> GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_PATH,
> GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_HANDLE,
> + GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_LOOP,
> + GVIR_CONFIG_DOMAIN_FILESYS_DRIVER_NBD,
> } GVirConfigDomainFilesysDriverType;
Different commit?
Could you add some small test case for the filesys node to
tests/test/gconfig.c while you are at it?
Christophe
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