[libvirt] [libvirt-glib 2/2] API to deal with topology information of CPU capabilities
Zeeshan Ali (Khattak)
zeeshanak at gnome.org
Tue May 22 15:51:46 UTC 2012
From: "Zeeshan Ali (Khattak)" <zeeshanak at gnome.org>
---
libvirt-gconfig/Makefile.am | 2 +
.../libvirt-gconfig-capabilities-cpu-topology.c | 83 ++++++++++++++++++++
.../libvirt-gconfig-capabilities-cpu-topology.h | 71 +++++++++++++++++
libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c | 22 +++++
libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h | 4 +
libvirt-gconfig/libvirt-gconfig.h | 1 +
libvirt-gconfig/libvirt-gconfig.sym | 6 ++
libvirt-gconfig/tests/test-capabilities-parse.c | 7 ++
8 files changed, 196 insertions(+), 0 deletions(-)
create mode 100644 libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.c
create mode 100644 libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.h
diff --git a/libvirt-gconfig/Makefile.am b/libvirt-gconfig/Makefile.am
index 4bc3ee1..19aa6ba 100644
--- a/libvirt-gconfig/Makefile.am
+++ b/libvirt-gconfig/Makefile.am
@@ -15,6 +15,7 @@ GCONFIG_HEADER_FILES = \
libvirt-gconfig-capabilities-host.h \
libvirt-gconfig-capabilities-cpu.h \
libvirt-gconfig-capabilities-cpu-feature.h \
+ libvirt-gconfig-capabilities-cpu-topology.h \
libvirt-gconfig-capabilities-guest.h \
libvirt-gconfig-capabilities-guest-arch.h \
libvirt-gconfig-capabilities-guest-domain.h \
@@ -82,6 +83,7 @@ GCONFIG_SOURCE_FILES = \
libvirt-gconfig-capabilities-host.c \
libvirt-gconfig-capabilities-cpu.c \
libvirt-gconfig-capabilities-cpu-feature.c \
+ libvirt-gconfig-capabilities-cpu-topology.c \
libvirt-gconfig-capabilities-guest.c \
libvirt-gconfig-capabilities-guest-arch.c \
libvirt-gconfig-capabilities-guest-domain.c \
diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.c b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.c
new file mode 100644
index 0000000..65ebcb1
--- /dev/null
+++ b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.c
@@ -0,0 +1,83 @@
+/*
+ * libvirt-gconfig-capabilities-cpu-topology.c: libvirt CPU topology 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 at redhat.com>
+ * Daniel P. Berrange <berrange at redhat.com>
+ */
+
+#include <config.h>
+
+#include "libvirt-gconfig/libvirt-gconfig.h"
+#include "libvirt-gconfig/libvirt-gconfig-private.h"
+
+#define GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY, GVirConfigCapabilitiesCpuTopologyPrivate))
+
+struct _GVirConfigCapabilitiesCpuTopologyPrivate
+{
+ gboolean unused;
+};
+
+G_DEFINE_TYPE(GVirConfigCapabilitiesCpuTopology, gvir_config_capabilities_cpu_topology, GVIR_CONFIG_TYPE_OBJECT);
+
+static void gvir_config_capabilities_cpu_topology_class_init(GVirConfigCapabilitiesCpuTopologyClass *klass)
+{
+ g_type_class_add_private(klass, sizeof(GVirConfigCapabilitiesCpuTopologyPrivate));
+}
+
+static void gvir_config_capabilities_cpu_topology_init(GVirConfigCapabilitiesCpuTopology *topology)
+{
+ g_debug("Init GVirConfigCapabilitiesCpuTopology=%p", topology);
+
+ topology->priv = GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY_GET_PRIVATE(topology);
+}
+
+guint64
+gvir_config_capabilities_cpu_topology_get_sockets(GVirConfigCapabilitiesCpuTopology *topology)
+{
+ g_return_val_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU_TOPOLOGY(topology), 0);
+
+ return gvir_config_object_get_attribute_uint64(GVIR_CONFIG_OBJECT(topology),
+ NULL,
+ "sockets",
+ 0);
+}
+
+guint64
+gvir_config_capabilities_cpu_topology_get_cores(GVirConfigCapabilitiesCpuTopology *topology)
+{
+ g_return_val_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU_TOPOLOGY(topology), 0);
+
+ return gvir_config_object_get_attribute_uint64(GVIR_CONFIG_OBJECT(topology),
+ NULL,
+ "cores",
+ 0);
+}
+
+guint64
+gvir_config_capabilities_cpu_topology_get_threads(GVirConfigCapabilitiesCpuTopology *topology)
+{
+ g_return_val_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU_TOPOLOGY(topology), 0);
+
+ return gvir_config_object_get_attribute_uint64(GVIR_CONFIG_OBJECT(topology),
+ NULL,
+ "threads",
+ 0);
+}
diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.h b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.h
new file mode 100644
index 0000000..673a340
--- /dev/null
+++ b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.h
@@ -0,0 +1,71 @@
+/*
+ * libvirt-gconfig-capabilities-cpu-topology.h: libvirt CPU topology 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 at redhat.com>
+ * Daniel P. Berrange <berrange at 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_CPU_TOPOLOGY_H__
+#define __LIBVIRT_GCONFIG_CAPABILITIES_CPU_TOPOLOGY_H__
+
+G_BEGIN_DECLS
+
+#define GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY (gvir_config_capabilities_cpu_topology_get_type ())
+#define GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY, GVirConfigCapabilitiesCpuTopology))
+#define GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY, GVirConfigCapabilitiesCpuTopologyClass))
+#define GVIR_CONFIG_IS_CAPABILITIES_CPU_TOPOLOGY(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY))
+#define GVIR_CONFIG_IS_CAPABILITIES_CPU_TOPOLOGY_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY))
+#define GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY, GVirConfigCapabilitiesCpuTopologyClass))
+
+typedef struct _GVirConfigCapabilitiesCpuTopology GVirConfigCapabilitiesCpuTopology;
+typedef struct _GVirConfigCapabilitiesCpuTopologyPrivate GVirConfigCapabilitiesCpuTopologyPrivate;
+typedef struct _GVirConfigCapabilitiesCpuTopologyClass GVirConfigCapabilitiesCpuTopologyClass;
+
+struct _GVirConfigCapabilitiesCpuTopology
+{
+ GVirConfigObject parent;
+
+ GVirConfigCapabilitiesCpuTopologyPrivate *priv;
+
+ /* Do not add fields to this struct */
+};
+
+struct _GVirConfigCapabilitiesCpuTopologyClass
+{
+ GVirConfigObjectClass parent_class;
+
+ gpointer padding[20];
+};
+
+GType gvir_config_capabilities_cpu_topology_get_type(void);
+
+guint64
+gvir_config_capabilities_cpu_topology_get_sockets(GVirConfigCapabilitiesCpuTopology *topology);
+guint64
+gvir_config_capabilities_cpu_topology_get_cores(GVirConfigCapabilitiesCpuTopology *topology);
+guint64
+gvir_config_capabilities_cpu_topology_get_threads(GVirConfigCapabilitiesCpuTopology *topology);
+
+G_END_DECLS
+
+#endif /* __LIBVIRT_GCONFIG_CAPABILITIES_CPU_TOPOLOGY_H__ */
diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c
index be23f13..c6dcdc4 100644
--- a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c
+++ b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.c
@@ -111,3 +111,25 @@ gvir_config_capabilities_cpu_get_features(GVirConfigCapabilitiesCpu *cpu)
return data.features;
}
+
+/**
+ * gvir_config_capabilities_cpu_get_topology:
+ *
+ * Gets the toplogoy of the cpu.
+ *
+ * Returns: (transfer full): a new #GVirConfigCapabilitiesCpuTopology.
+ */
+GVirConfigCapabilitiesCpuTopology *
+gvir_config_capabilities_cpu_get_topology(GVirConfigCapabilitiesCpu *cpu)
+{
+ GVirConfigObject *object;
+
+ g_return_val_if_fail(GVIR_CONFIG_IS_CAPABILITIES_CPU(cpu), NULL);
+
+ object = gvir_config_object_get_child_with_type
+ (GVIR_CONFIG_OBJECT(cpu),
+ "topology",
+ GVIR_CONFIG_TYPE_CAPABILITIES_CPU_TOPOLOGY);
+
+ return GVIR_CONFIG_CAPABILITIES_CPU_TOPOLOGY(object);
+}
diff --git a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h
index 8b221ae..4d896ef 100644
--- a/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h
+++ b/libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h
@@ -28,6 +28,8 @@
#ifndef __LIBVIRT_GCONFIG_CAPABILITIES_CPU_H__
#define __LIBVIRT_GCONFIG_CAPABILITIES_CPU_H__
+#include "libvirt-gconfig-capabilities-cpu-topology.h"
+
G_BEGIN_DECLS
#define GVIR_CONFIG_TYPE_CAPABILITIES_CPU (gvir_config_capabilities_cpu_get_type ())
@@ -63,6 +65,8 @@ const gchar *
gvir_config_capabilities_cpu_get_arch(GVirConfigCapabilitiesCpu *cpu);
GList *
gvir_config_capabilities_cpu_get_features(GVirConfigCapabilitiesCpu *cpu);
+GVirConfigCapabilitiesCpuTopology *
+gvir_config_capabilities_cpu_get_topology(GVirConfigCapabilitiesCpu *cpu);
G_END_DECLS
diff --git a/libvirt-gconfig/libvirt-gconfig.h b/libvirt-gconfig/libvirt-gconfig.h
index 1201eb8..1e69962 100644
--- a/libvirt-gconfig/libvirt-gconfig.h
+++ b/libvirt-gconfig/libvirt-gconfig.h
@@ -31,6 +31,7 @@
#include <libvirt-gconfig/libvirt-gconfig-capabilities.h>
#include <libvirt-gconfig/libvirt-gconfig-capabilities-cpu.h>
#include <libvirt-gconfig/libvirt-gconfig-capabilities-cpu-feature.h>
+#include <libvirt-gconfig/libvirt-gconfig-capabilities-cpu-topology.h>
#include <libvirt-gconfig/libvirt-gconfig-capabilities-guest.h>
#include <libvirt-gconfig/libvirt-gconfig-capabilities-guest-arch.h>
#include <libvirt-gconfig/libvirt-gconfig-capabilities-guest-domain.h>
diff --git a/libvirt-gconfig/libvirt-gconfig.sym b/libvirt-gconfig/libvirt-gconfig.sym
index 11c01f1..0db0320 100644
--- a/libvirt-gconfig/libvirt-gconfig.sym
+++ b/libvirt-gconfig/libvirt-gconfig.sym
@@ -388,10 +388,16 @@ LIBVIRT_GCONFIG_0.0.9 {
gvir_config_capabilities_cpu_get_type;
gvir_config_capabilities_cpu_get_arch;
gvir_config_capabilities_cpu_get_features;
+ gvir_config_capabilities_cpu_get_topology;
gvir_config_capabilities_cpu_feature_get_type;
gvir_config_capabilities_cpu_feature_get_name;
+ gvir_config_capabilities_cpu_topology_get_type;
+ gvir_config_capabilities_cpu_topology_get_sockets;
+ gvir_config_capabilities_cpu_topology_get_cores;
+ gvir_config_capabilities_cpu_topology_get_threads;
+
gvir_config_capabilities_guest_get_type;
gvir_config_capabilities_guest_get_arch;
gvir_config_capabilities_guest_get_features;
diff --git a/libvirt-gconfig/tests/test-capabilities-parse.c b/libvirt-gconfig/tests/test-capabilities-parse.c
index 4b0da8f..72aead4 100644
--- a/libvirt-gconfig/tests/test-capabilities-parse.c
+++ b/libvirt-gconfig/tests/test-capabilities-parse.c
@@ -34,6 +34,7 @@
static void verify_host_caps(GVirConfigCapabilitiesHost *host_caps)
{
GVirConfigCapabilitiesCpu *cpu_caps;
+ GVirConfigCapabilitiesCpuTopology *topology;
GList *features, *iter;
const char *str;
@@ -51,6 +52,12 @@ static void verify_host_caps(GVirConfigCapabilitiesHost *host_caps)
g_object_unref(G_OBJECT(iter->data));
}
g_list_free(features);
+
+ topology = gvir_config_capabilities_cpu_get_topology(cpu_caps);
+ g_assert(topology != NULL);
+ g_assert(gvir_config_capabilities_cpu_topology_get_sockets(topology) == 1);
+ g_assert(gvir_config_capabilities_cpu_topology_get_cores(topology) == 2);
+ g_assert(gvir_config_capabilities_cpu_topology_get_threads(topology) == 2);
g_object_unref(G_OBJECT(cpu_caps));
}
--
1.7.7.6
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