[libvirt] [libvirt-designer][PATCH v2 2/4] domain: Introduce disk support
Daniel P. Berrange
berrange at redhat.com
Tue Sep 11 09:17:13 UTC 2012
On Mon, Sep 10, 2012 at 03:58:26PM +0200, Michal Privoznik wrote:
> Let users add either files or devices as disks to domains.
> ---
> libvirt-designer/libvirt-designer-domain.c | 259 ++++++++++++++++++++++++++++
> libvirt-designer/libvirt-designer-domain.h | 7 +
> libvirt-designer/libvirt-designer.sym | 3 +
> 3 files changed, 269 insertions(+), 0 deletions(-)
>
> diff --git a/libvirt-designer/libvirt-designer-domain.c b/libvirt-designer/libvirt-designer-domain.c
> index a8cabde..8e649d7 100644
> --- a/libvirt-designer/libvirt-designer-domain.c
> +++ b/libvirt-designer/libvirt-designer-domain.c
> +static GVirConfigDomainDisk *
> +gvir_designer_domain_add_disk_full(GVirDesignerDomain *design,
> + GVirConfigDomainDiskType type,
> + const char *path,
> + const char *format,
> + gchar *target,
> + GError **error)
> +{
> + GVirDesignerDomainPrivate *priv = design->priv;
> + GVirConfigDomainDisk *disk = NULL;
> + GVirConfigDomainDiskBus bus;
> + gchar *target_gen = NULL;
> + const gchar *bus_str = NULL;
> + GList *bus_str_list = NULL, *item = NULL;
> +
> + /* Guess preferred disk bus */
> + bus_str = gvir_designer_domain_get_preferred_disk_bus_type(design, error);
> + if (!bus_str) {
> + /* And fallback if fails */
> + bus_str_list = gvir_designer_domain_get_supported_disk_bus_types(design);
> + if (!bus_str_list) {
> + if (!*error)
> + g_set_error(error, GVIR_DESIGNER_DOMAIN_ERROR, 0,
> + "Unable to find any disk bus type");
> + goto error;
> + }
> +
> + item = g_list_first(bus_str_list);
> + bus_str = item->data;
> + if (!bus_str)
> + goto error;
> + }
> +
> + g_clear_error(error);
> +
> + disk = gvir_config_domain_disk_new();
> + gvir_config_domain_disk_set_type(disk, type);
> + gvir_config_domain_disk_set_source(disk, path);
> + gvir_config_domain_disk_set_driver_name(disk, "qemu");
Opps, don't want to hardcode use of qemu here - need to make this conditional
based on the <domain type='...'/> value.
> + if (format)
> + gvir_config_domain_disk_set_driver_type(disk, format);
> + if (g_str_equal(bus_str, "ide")) {
> + bus = GVIR_CONFIG_DOMAIN_DISK_BUS_IDE;
> + } else if (g_str_equal(bus_str, "virtio") ||
> + g_str_equal(bus_str, "pci")) {
> + bus = GVIR_CONFIG_DOMAIN_DISK_BUS_VIRTIO;
> + } else if (g_str_equal(bus_str, "sata")) {
> + bus = GVIR_CONFIG_DOMAIN_DISK_BUS_SATA;
> + } else {
> + g_set_error(error, GVIR_DESIGNER_DOMAIN_ERROR, 0,
> + "unsupported disk bus type '%s'", bus_str);
> + goto error;
> + }
> +
> + gvir_config_domain_disk_set_target_bus(disk, bus);
> +
> + if (!target) {
> + target = target_gen = gvir_designer_domain_next_disk_target(design, bus);
> + if (!target_gen) {
> + g_set_error(error, GVIR_DESIGNER_DOMAIN_ERROR, 0,
> + "unable to generate target name for bus '%s'", bus_str);
> + goto error;
> + }
> + }
> + gvir_config_domain_disk_set_target_dev(disk, target);
> +
> + g_list_free(bus_str_list);
> + g_free(target_gen);
> +
> + gvir_config_domain_add_device(priv->config, GVIR_CONFIG_DOMAIN_DEVICE(disk));
> +
> + return disk;
> +
> +error:
> + g_free(target_gen);
> + g_list_free(bus_str_list);
> + if (disk)
> + g_object_unref(disk);
> + return NULL;
> +}
> +/**
Minor note - my preference is to leave 2 blank lines between functions.
> + * gvir_designer_domain_add_disk_file:
> + * @design: (transfer none): the domain designer instance
> + * @filepath: (transfer none): the path to a file
> + * @format: (transfer none): disk format
> + *
> + * Add a new disk to the domain.
> + *
> + * Returns: (transfer none): the pointer to new disk.
> + * If something fails NULL is returned and @error is set.
> + */
> +GVirConfigDomainDisk *gvir_designer_domain_add_disk_file(GVirDesignerDomain *design,
> + const char *filepath,
> + const char *format,
> + GError **error)
> +{
> + g_return_val_if_fail(GVIR_DESIGNER_IS_DOMAIN(design), NULL);
> +
> + GVirConfigDomainDisk *ret = NULL;
> +
> + ret = gvir_designer_domain_add_disk_full(design,
> + GVIR_CONFIG_DOMAIN_DISK_FILE,
> + filepath,
> + format,
> + NULL,
> + error);
> + return ret;
> +}
I know you've pushed this series already, so fine to just post followup
fixes as needed or push directly.
Daniel
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