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/*
* libvirt-gobject-domain-disk.c: libvirt gobject integration
*
* Copyright (C) 2011 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, see
* <http://www.gnu.org/licenses/>.
*
* Author: Marc-André Lureau <marcandre.lureau@redhat.com>
*/
#include <config.h>
#include <libvirt/virterror.h>
#include <string.h>
#include "libvirt-glib/libvirt-glib.h"
#include "libvirt-gobject/libvirt-gobject.h"
#include "libvirt-gobject-compat.h"
#include "libvirt-gobject/libvirt-gobject-domain-device-private.h"
#define GVIR_DOMAIN_DISK_GET_PRIVATE(obj) \
(G_TYPE_INSTANCE_GET_PRIVATE((obj), GVIR_TYPE_DOMAIN_DISK, GVirDomainDiskPrivate))
struct _GVirDomainDiskPrivate
{
gboolean unused;
};
G_DEFINE_TYPE(GVirDomainDisk, gvir_domain_disk, GVIR_TYPE_DOMAIN_DEVICE);
#define GVIR_DOMAIN_DISK_ERROR gvir_domain_disk_error_quark()
static GQuark
gvir_domain_disk_error_quark(void)
{
return g_quark_from_static_string("gvir-domain-disk");
}
static void gvir_domain_disk_finalize(GObject *object)
{
GVirDomainDisk *self = GVIR_DOMAIN_DISK(object);
g_debug("Finalize GVirDomainDisk=%p", self);
G_OBJECT_CLASS(gvir_domain_disk_parent_class)->finalize(object);
}
static void gvir_domain_disk_class_init(GVirDomainDiskClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
object_class->finalize = gvir_domain_disk_finalize;
g_type_class_add_private(klass, sizeof(GVirDomainDiskPrivate));
}
static void gvir_domain_disk_init(GVirDomainDisk *self)
{
g_debug("Init GVirDomainDisk=%p", self);
self->priv = GVIR_DOMAIN_DISK_GET_PRIVATE(self);
}
static GVirDomainDiskStats *
gvir_domain_disk_stats_copy(GVirDomainDiskStats *stats)
{
return g_slice_dup(GVirDomainDiskStats, stats);
}
static void
gvir_domain_disk_stats_free(GVirDomainDiskStats *stats)
{
g_slice_free(GVirDomainDiskStats, stats);
}
G_DEFINE_BOXED_TYPE(GVirDomainDiskStats, gvir_domain_disk_stats,
gvir_domain_disk_stats_copy, gvir_domain_disk_stats_free)
static const gchar *gvir_domain_disk_get_path(GVirDomainDisk *self)
{
GVirConfigDomainDevice *config;
const gchar *path;
config = gvir_domain_device_get_config(GVIR_DOMAIN_DEVICE(self));
path = gvir_config_domain_disk_get_target_dev(GVIR_CONFIG_DOMAIN_DISK(config));
g_object_unref(config);
return path;
}
/**
* gvir_domain_disk_get_stats:
* @self: the domain disk
* @err: an error
*
* This function returns network disk stats. Individual fields
* within the stats structure may be returned as -1, which indicates
* that the hypervisor does not support that particular statistic.
*
* Returns: (transfer full): the stats or %NULL in case of error.The
* returned object should be unreffed with g_object_unref() when no longer
* needed.
**/
GVirDomainDiskStats *gvir_domain_disk_get_stats(GVirDomainDisk *self, GError **err)
{
GVirDomainDiskStats *ret = NULL;
virDomainBlockStatsStruct stats;
virDomainPtr handle;
const gchar *path;
g_return_val_if_fail(GVIR_IS_DOMAIN_DISK(self), NULL);
g_return_val_if_fail((err == NULL) || (*err == NULL), NULL);
handle = gvir_domain_device_get_domain_handle(GVIR_DOMAIN_DEVICE(self));
path = gvir_domain_disk_get_path (self);
if (virDomainBlockStats(handle, path, &stats, sizeof (stats)) < 0) {
gvir_set_error_literal(err, GVIR_DOMAIN_DISK_ERROR,
0,
"Unable to get domain disk stats");
goto end;
}
ret = g_slice_new(GVirDomainDiskStats);
ret->rd_req = stats.rd_req;
ret->rd_bytes = stats.rd_bytes;
ret->wr_req = stats.wr_req;
ret->wr_bytes = stats.wr_bytes;
ret->errs = stats.errs;
end:
virDomainFree(handle);
return ret;
}
/**
* gvir_domain_disk_resize:
* @self: the domain disk
* @size: new size of the block image in kilobytes
* @flags: flags, currently unused. Pass '0'.
* @err: placeholder for an error, or NULL
*
* This function resize the disk of a running domain.
*
* Returns: TRUE if size was successfully changed, FALSE otherwise.
**/
gboolean gvir_domain_disk_resize(GVirDomainDisk *self,
guint64 size,
guint flags,
GError **err)
{
gboolean ret = FALSE;
virDomainPtr handle;
const gchar *path;
g_return_val_if_fail(GVIR_IS_DOMAIN_DISK(self), FALSE);
g_return_val_if_fail(err == NULL || *err == NULL, FALSE);
handle = gvir_domain_device_get_domain_handle(GVIR_DOMAIN_DEVICE(self));
path = gvir_domain_disk_get_path (self);
if (virDomainBlockResize(handle, path, size, flags) < 0) {
gvir_set_error_literal(err, GVIR_DOMAIN_DISK_ERROR,
0,
"Failed to resize domain disk");
goto end;
}
ret = TRUE;
end:
virDomainFree(handle);
return ret;
}
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