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Re: [libvirt] [libvirt-glib 3/3] Add guest capabilities API



On Tue, May 01, 2012 at 08:30:40PM +0300, Zeeshan Ali (Khattak) wrote:
> From: "Zeeshan Ali (Khattak)" <zeeshanak gnome org>
> 
> Not quite complete but its a good start.
> +
> +#ifndef __LIBVIRT_GCONFIG_CAPABILITIES_CPU_ARCH_H__
> +#define __LIBVIRT_GCONFIG_CAPABILITIES_CPU_ARCH_H__
> +
> +G_BEGIN_DECLS
> +
> +#define GVIR_CONFIG_TYPE_CAPABILITIES_CPU_ARCH            (gvir_config_capabilities_cpu_arch_get_type ())
> +#define GVIR_CONFIG_CAPABILITIES_CPU_ARCH(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_ARCH, GVirConfigCapabilitiesCPUArch))
> +#define GVIR_CONFIG_CAPABILITIES_CPU_ARCH_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_ARCH, GVirConfigCapabilitiesCPUArchClass))
> +#define GVIR_CONFIG_IS_CAPABILITIES_CPU_ARCH(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_ARCH))
> +#define GVIR_CONFIG_IS_CAPABILITIES_CPU_ARCH_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_ARCH))
> +#define GVIR_CONFIG_CAPABILITIES_CPU_ARCH_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_ARCH, GVirConfigCapabilitiesCPUArchClass))
> +
> +typedef struct _GVirConfigCapabilitiesCPUArch GVirConfigCapabilitiesCPUArch;
> +typedef struct _GVirConfigCapabilitiesCPUArchPrivate GVirConfigCapabilitiesCPUArchPrivate;
> +typedef struct _GVirConfigCapabilitiesCPUArchClass GVirConfigCapabilitiesCPUArchClass;
> +
> +struct _GVirConfigCapabilitiesCPUArch
> +{
> +    GVirConfigObject parent;
> +
> +    GVirConfigCapabilitiesCPUArchPrivate *priv;
> +
> +    /* Do not add fields to this struct */
> +};
> +
> +struct _GVirConfigCapabilitiesCPUArchClass
> +{
> +    GVirConfigObjectClass parent_class;
> +
> +    gpointer padding[20];
> +};
> +
> +GType gvir_config_capabilities_cpu_arch_get_type(void);
> +
> +const gchar *
> +gvir_config_capabilities_cpu_arch_get_name(GVirConfigCapabilitiesCPUArch *caps);
> +GList *
> +gvir_config_capabilities_cpu_arch_get_domains(GVirConfigCapabilitiesCPUArch *caps);
> +const gchar *
> +gvir_config_capabilities_cpu_arch_get_emulator(GVirConfigCapabilitiesCPUArch *caps);

I think this should be calling  GVirConfigCapabilitiesGuestArch
to avoid confusion with CPU model types.

> diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-domain.c b/libvirt-gconfig/libvirt-gconfig-capabilities-domain.c
> new file mode 100644
> index 0000000..1023f9d
> --- /dev/null
> +++ b/libvirt-gconfig/libvirt-gconfig-capabilities-domain.c
> @@ -0,0 +1,93 @@
> +/*
> + * libvirt-gconfig-capabilities-domain.c: libvirt domain capabilities
> + *
> + * Copyright (C) 2008 Daniel P. Berrange
> + * Copyright (C) 2010-2012 Red Hat, Inc.
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
> + *
> + * Authors: Zeeshan Ali <zeenix redhat com>
> + *          Daniel P. Berrange <berrange redhat com>
> + */
> +
> +#include <config.h>
> +
> +#include "libvirt-gconfig/libvirt-gconfig.h"
> +#include "libvirt-gconfig/libvirt-gconfig-private.h"
> +
> +#define GVIR_CONFIG_CAPABILITIES_DOMAIN_GET_PRIVATE(obj)                         \
> +        (G_TYPE_INSTANCE_GET_PRIVATE((obj), GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN, GVirConfigCapabilitiesDomainPrivate))
> +
> +struct _GVirConfigCapabilitiesDomainPrivate
> +{
> +    gboolean unused;
> +};
> +
> +G_DEFINE_TYPE(GVirConfigCapabilitiesDomain, gvir_config_capabilities_domain, GVIR_CONFIG_TYPE_OBJECT);
> +
> +
> +static void gvir_config_capabilities_domain_class_init(GVirConfigCapabilitiesDomainClass *klass)
> +{
> +    g_type_class_add_private(klass, sizeof(GVirConfigCapabilitiesDomainPrivate));
> +}
> +
> +static void gvir_config_capabilities_domain_init(GVirConfigCapabilitiesDomain *conn)
> +{
> +    g_debug("Init GVirConfigCapabilitiesDomain=%p", conn);
> +
> +    conn->priv = GVIR_CONFIG_CAPABILITIES_DOMAIN_GET_PRIVATE(conn);
> +}
> +
> +G_GNUC_INTERNAL GVirConfigCapabilitiesDomain *
> +gvir_config_capabilities_domain_new_from_tree(GVirConfigXmlDoc *doc,
> +                                            xmlNodePtr tree)
> +{
> +    GVirConfigObject *object;
> +
> +    object = gvir_config_object_new_from_tree(GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN,
> +                                              doc,
> +                                              NULL,
> +                                              tree);
> +
> +    return GVIR_CONFIG_CAPABILITIES_DOMAIN(object);
> +}
> +
> +const gchar *
> +gvir_config_capabilities_domain_get_emulator(GVirConfigCapabilitiesDomain *caps)
> +{
> +    xmlNodePtr node;
> +
> +    node = gvir_config_object_get_xml_node(GVIR_CONFIG_OBJECT(caps));
> +
> +    return gvir_config_xml_get_child_element_content(node, "emulator");
> +}
> +
> +GVirConfigDomainVirtType 
> +gvir_config_capabilities_domain_get_virt_type(GVirConfigCapabilitiesDomain *caps)
> +{
> +    xmlNodePtr node;
> +    const gchar *str;
> +
> +    node = gvir_config_object_get_xml_node(GVIR_CONFIG_OBJECT(caps));
> +
> +    str = gvir_config_xml_get_attribute_content(node, "type");
> +    if (str == NULL)
> +        return GVIR_CONFIG_DOMAIN_VIRT_QEMU;
> +
> +    return gvir_config_genum_get_value(GVIR_CONFIG_TYPE_DOMAIN_VIRT_TYPE,
> +                                       str,
> +                                       GVIR_CONFIG_DOMAIN_VIRT_QEMU);
> +}
> +
> diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-domain.h b/libvirt-gconfig/libvirt-gconfig-capabilities-domain.h
> new file mode 100644
> index 0000000..6c20191
> --- /dev/null
> +++ b/libvirt-gconfig/libvirt-gconfig-capabilities-domain.h
> @@ -0,0 +1,72 @@
> +/*
> + * libvirt-gconfig-capabilities-domain.h: libvirt domain capabilities
> + *
> + * Copyright (C) 2010-2012 Red Hat, Inc.
> + *
> + * This library is free software; you can redistribute it and/or
> + * modify it under the terms of the GNU Lesser General Public
> + * License as published by the Free Software Foundation; either
> + * version 2.1 of the License, or (at your option) any later version.
> + *
> + * This library is distributed in the hope that it will be useful,
> + * but WITHOUT ANY WARRANTY; without even the implied warranty of
> + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
> + * Lesser General Public License for more details.
> + *
> + * You should have received a copy of the GNU Lesser General Public
> + * License along with this library; if not, write to the Free Software
> + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
> + *
> + * Authors: Zeeshan Ali <zeenix redhat com>
> + *          Daniel P. Berrange <berrange redhat com>
> + */
> +
> +#if !defined(__LIBVIRT_GCONFIG_H__) && !defined(LIBVIRT_GCONFIG_BUILD)
> +#error "Only <libvirt-gconfig/libvirt-gconfig.h> can be included directly."
> +#endif
> +
> +#ifndef __LIBVIRT_GCONFIG_CAPABILITIES_DOMAIN_H__
> +#define __LIBVIRT_GCONFIG_CAPABILITIES_DOMAIN_H__
> +
> +#include "libvirt-gconfig-domain.h"
> +
> +G_BEGIN_DECLS
> +
> +#define GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN            (gvir_config_capabilities_domain_get_type ())
> +#define GVIR_CONFIG_CAPABILITIES_DOMAIN(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN, GVirConfigCapabilitiesDomain))
> +#define GVIR_CONFIG_CAPABILITIES_DOMAIN_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN, GVirConfigCapabilitiesDomainClass))
> +#define GVIR_CONFIG_IS_CAPABILITIES_DOMAIN(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN))
> +#define GVIR_CONFIG_IS_CAPABILITIES_DOMAIN_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN))
> +#define GVIR_CONFIG_CAPABILITIES_DOMAIN_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_DOMAIN, GVirConfigCapabilitiesDomainClass))
> +
> +typedef struct _GVirConfigCapabilitiesDomain GVirConfigCapabilitiesDomain;
> +typedef struct _GVirConfigCapabilitiesDomainPrivate GVirConfigCapabilitiesDomainPrivate;
> +typedef struct _GVirConfigCapabilitiesDomainClass GVirConfigCapabilitiesDomainClass;
> +
> +struct _GVirConfigCapabilitiesDomain
> +{
> +    GVirConfigObject parent;
> +
> +    GVirConfigCapabilitiesDomainPrivate *priv;
> +
> +    /* Do not add fields to this struct */
> +};
> +
> +struct _GVirConfigCapabilitiesDomainClass
> +{
> +    GVirConfigObjectClass parent_class;
> +
> +    gpointer padding[20];
> +};
> +
> +GType gvir_config_capabilities_domain_get_type(void);
> +
> +const gchar *
> +gvir_config_capabilities_domain_get_emulator(GVirConfigCapabilitiesDomain *caps);
> +
> +GVirConfigDomainVirtType
> +gvir_config_capabilities_domain_get_virt_type(GVirConfigCapabilitiesDomain *caps);

And use  GVirConfigCapabilitiesGuestDomain here


> +struct GetFeatureData {
> +    GVirConfigXmlDoc *doc;
> +    GList *features;
> +};
> +
> +static gboolean add_feature(xmlNodePtr node, gpointer opaque)
> +{
> +    struct GetFeatureData* data = (struct GetFeatureData*)opaque;
> +    GVirConfigCapabilitiesCPUFeature *feature;
> +
> +    feature = gvir_config_capabilities_cpu_feature_new_from_tree(data->doc, node);
> +    if (feature != NULL)
> +        data->features = g_list_append(data->features, feature);
> +    else
> +        g_debug("Failed to parse %s node", node->name);
> +
> +    return TRUE;
> +}
> +
> +/**
> + * gvir_config_capabilities_guest_get_cpu_features:
> + *
> + * Gets the CPU features for this guest.
> + *
> + * Returns: (element-type LibvirtGConfig.CapabilitiesCPUFeature) (transfer full):
> + * a newly allocated #GList of #GVirConfigCapabilitiesCPUFeature.
> + */

This isn't right - the things in the /capabilities/guest/features XML
is nothing at all todo with the /capabilities/host/cpu/feature XML.

We should have a separate   GVirConfigCapabilitiesGuestFeature
object for these, and remove 'cpu' from the method name here.



> diff --git a/libvirt-gconfig/libvirt-gconfig.sym b/libvirt-gconfig/libvirt-gconfig.sym
> index b1df17b..51f6ce6 100644
> --- a/libvirt-gconfig/libvirt-gconfig.sym
> +++ b/libvirt-gconfig/libvirt-gconfig.sym
> @@ -7,6 +7,7 @@ LIBVIRT_GCONFIG_0.0.8 {
>  	gvir_config_capabilities_new;
>  	gvir_config_capabilities_new_from_xml;
>  	gvir_config_capabilities_get_host;
> +	gvir_config_capabilities_get_guests;
>  
>  	gvir_config_capabilities_host_get_type;
>  	gvir_config_capabilities_host_new_from_tree;
> @@ -20,6 +21,21 @@ LIBVIRT_GCONFIG_0.0.8 {
>  	gvir_config_capabilities_cpu_feature_get_type;
>  	gvir_config_capabilities_cpu_feature_get_name;
>  
> +	gvir_config_capabilities_guest_get_type;
> +	gvir_config_capabilities_guest_new_from_tree;
> +	gvir_config_capabilities_guest_get_os_type;
> +	gvir_config_capabilities_guest_get_cpu_arch;
> +	gvir_config_capabilities_guest_get_cpu_features;
> +
> +	gvir_config_capabilities_cpu_arch_get_type;
> +	gvir_config_capabilities_cpu_arch_get_name;
> +	gvir_config_capabilities_cpu_arch_get_domains;
> +	gvir_config_capabilities_cpu_arch_get_emulator;
> +
> +	gvir_config_capabilities_domain_get_type;
> +	gvir_config_capabilities_domain_get_emulator;
> +	gvir_config_capabilities_domain_get_virt_type;
> +
>  	gvir_config_domain_add_device;
>  	gvir_config_domain_get_type;
>  	gvir_config_domain_lifecycle_action_get_type;

Again, add these in a new version block


Daniel
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