A few preliminary remark below, they apply to the next patch as well.
On Thu, Nov 10, 2011 at 09:33:42PM +0100, Marc-André Lureau wrote:
---
libvirt-gobject/Makefile.am | 2 +
libvirt-gobject/libvirt-gobject-domain-interface.c | 213 ++++++++++++++++++++
libvirt-gobject/libvirt-gobject-domain-interface.h | 81 ++++++++
libvirt-gobject/libvirt-gobject.h | 1 +
libvirt-gobject/libvirt-gobject.sym | 4 +
5 files changed, 301 insertions(+), 0 deletions(-)
create mode 100644 libvirt-gobject/libvirt-gobject-domain-interface.c
create mode 100644 libvirt-gobject/libvirt-gobject-domain-interface.h
diff --git a/libvirt-gobject/Makefile.am b/libvirt-gobject/Makefile.am
index 56a047e..8b59109 100644
--- a/libvirt-gobject/Makefile.am
+++ b/libvirt-gobject/Makefile.am
@@ -8,6 +8,7 @@ GOBJECT_HEADER_FILES = \
libvirt-gobject-main.h \
libvirt-gobject-domain-snapshot.h \
libvirt-gobject-domain-device.h \
+ libvirt-gobject-domain-interface.h \
libvirt-gobject-domain.h \
libvirt-gobject-interface.h \
libvirt-gobject-network.h \
@@ -23,6 +24,7 @@ GOBJECT_SOURCE_FILES = \
libvirt-gobject-main.c \
libvirt-gobject-domain-snapshot.c \
libvirt-gobject-domain-device.c \
+ libvirt-gobject-domain-interface.c \
libvirt-gobject-domain.c \
libvirt-gobject-interface.c \
libvirt-gobject-network.c \
diff --git a/libvirt-gobject/libvirt-gobject-domain-interface.c
b/libvirt-gobject/libvirt-gobject-domain-interface.c
new file mode 100644
index 0000000..65a5467
--- /dev/null
+++ b/libvirt-gobject/libvirt-gobject-domain-interface.c
@@ -0,0 +1,213 @@
+/*
+ * libvirt-gobject-domain-interface.c: libvirt gobject integration
+ *
+ * Copyright (C) 2011 Red Hat
+ *
+ * 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
+ *
+ * Author: Marc-André Lureau <marcandre.lureau(a)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/libvirt-gobject-domain-device-private.h"
+
+extern gboolean debugFlag;
+
+#define DEBUG(fmt, ...) do { if (G_UNLIKELY(debugFlag)) g_debug(fmt, ## __VA_ARGS__); }
while (0)
+
+#define GVIR_DOMAIN_INTERFACE_GET_PRIVATE(obj) \
+ (G_TYPE_INSTANCE_GET_PRIVATE((obj), GVIR_TYPE_DOMAIN_INTERFACE,
GVirDomainInterfacePrivate))
+
+struct _GVirDomainInterfacePrivate
+{
+ gchar *path;
+};
+
+G_DEFINE_TYPE(GVirDomainInterface, gvir_domain_interface, GVIR_TYPE_DOMAIN_DEVICE);
+
+enum {
+ PROP_0,
+ PROP_PATH,
+};
+
+#define GVIR_DOMAIN_INTERFACE_ERROR gvir_domain_interface_error_quark()
+
+
+static GQuark
+gvir_domain_interface_error_quark(void)
+{
+ return g_quark_from_static_string("gvir-domain-interface");
+}
+
+static void gvir_domain_interface_get_property(GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GVirDomainInterface *self = GVIR_DOMAIN_INTERFACE(object);
+ GVirDomainInterfacePrivate *priv = self->priv;
+
+ switch (prop_id) {
+ case PROP_PATH:
+ g_value_set_string(value, priv->path);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+}
+
+
+static void gvir_domain_interface_set_property(GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GVirDomainInterface *self = GVIR_DOMAIN_INTERFACE(object);
+ GVirDomainInterfacePrivate *priv = self->priv;
+
+ switch (prop_id) {
+ case PROP_PATH:
+ if (priv->path)
+ g_free(priv->path);
You can safely call g_free on a NULL pointer, this makes the code a bit
simpler, there are several occurrences of this in the 2 patches.
+ priv->path = g_value_dup_string(value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
+ }
+}
+
+
+static void gvir_domain_interface_finalize(GObject *object)
+{
+ GVirDomainInterface *self = GVIR_DOMAIN_INTERFACE(object);
+ GVirDomainInterfacePrivate *priv = self->priv;
+
+ DEBUG("Finalize GVirDomainInterface=%p", self);
+
+ if (priv->path)
+ g_free(priv->path);
+
+ G_OBJECT_CLASS(gvir_domain_interface_parent_class)->finalize(object);
+}
+
+static void gvir_domain_interface_class_init(GVirDomainInterfaceClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = gvir_domain_interface_finalize;
+ object_class->get_property = gvir_domain_interface_get_property;
+ object_class->set_property = gvir_domain_interface_set_property;
+
+ g_object_class_install_property(object_class,
+ PROP_PATH,
+ g_param_spec_string("path",
+ "Path",
+ "The interface path",
+ NULL,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY |
+ G_PARAM_STATIC_STRINGS));
+
+ g_type_class_add_private(klass, sizeof(GVirDomainInterfacePrivate));
+}
+
+static void gvir_domain_interface_init(GVirDomainInterface *self)
+{
+ DEBUG("Init GVirDomainInterface=%p", self);
+
+ self->priv = GVIR_DOMAIN_INTERFACE_GET_PRIVATE(self);
+}
+
+static GVirDomainInterfaceStats *
+gvir_domain_interface_stats_copy(GVirDomainInterfaceStats *stats)
+{
+ return g_slice_dup(GVirDomainInterfaceStats, stats);
+}
Do we really need to use GSlice here? I consider GSlice as something to use
when you want to make many allocations of same-size objects, will we
allocate many of these stats objects?
+
+
+static void
+gvir_domain_interface_stats_free(GVirDomainInterfaceStats *stats)
+{
+ g_slice_free(GVirDomainInterfaceStats, stats);
+}
+
+
+GType gvir_domain_interface_stats_get_type(void)
+{
+ static GType stats_type = 0;
+
+ if (G_UNLIKELY(stats_type == 0))
+ stats_type = g_boxed_type_register_static
+ ("GVirDomainInterfaceStats",
+ (GBoxedCopyFunc)gvir_domain_interface_stats_copy,
+ (GBoxedFreeFunc)gvir_domain_interface_stats_free);
+
+ return stats_type;
+}
+
+/**
+ * gvir_domain_interface_get_stats:
+ * @self: the domain interface
+ * @err: an error
+ *
+ * This function returns network interface 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
+ **/
+GVirDomainInterfaceStats *gvir_domain_interface_get_stats(GVirDomainInterface *self,
GError **err)
+{
+ GVirDomainInterfaceStats *ret;
+ virDomainInterfaceStatsStruct stats;
+ GVirDomainInterfacePrivate *priv;
+ virDomainPtr handle;
+
+ g_return_val_if_fail(GVIR_IS_DOMAIN_INTERFACE(self), NULL);
+
+ priv = self->priv;
+ handle = gvir_domain_device_get_domain_handle(GVIR_DOMAIN_DEVICE(self));
+
+ if (virDomainInterfaceStats(handle, priv->path, &stats, sizeof (stats)) <
0) {
+ if (err)
+ *err = gvir_error_new_literal(GVIR_DOMAIN_INTERFACE_ERROR,
+ 0,
+ "Unable to get domain interface
stats");
+ goto end;
+ }
+
+ ret = g_slice_new(GVirDomainInterfaceStats);
+ ret->rx_bytes = stats.rx_bytes;
+ ret->rx_packets = stats.rx_packets;
+ ret->rx_errs = stats.rx_errs;
+ ret->rx_drop = stats.rx_drop;
+ ret->tx_bytes = stats.tx_bytes;
+ ret->tx_packets = stats.tx_packets;
+ ret->tx_errs = stats.tx_errs;
+ ret->tx_drop = stats.tx_drop;
+
+end:
+ virDomainFree(handle);
+ return ret;
+}
diff --git a/libvirt-gobject/libvirt-gobject-domain-interface.h
b/libvirt-gobject/libvirt-gobject-domain-interface.h
new file mode 100644
index 0000000..5541f91
--- /dev/null
+++ b/libvirt-gobject/libvirt-gobject-domain-interface.h
@@ -0,0 +1,81 @@
+/*
+ * libvirt-gobject-domain-interface.h: libvirt gobject integration
+ *
+ * Copyright (C) 2011 Red Hat
+ *
+ * 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
+ *
+ * Author: Marc-André Lureau <marcandre.lureau(a)redhat.com>
+ */
+
+#if !defined(__LIBVIRT_GOBJECT_H__) && !defined(LIBVIRT_GOBJECT_BUILD)
+#error "Only <libvirt-gobject/libvirt-gobject.h> can be included
directly."
+#endif
+
+#ifndef __LIBVIRT_GOBJECT_DOMAIN_INTERFACE_H__
+#define __LIBVIRT_GOBJECT_DOMAIN_INTERFACE_H__
+
+G_BEGIN_DECLS
+
+#define GVIR_TYPE_DOMAIN_INTERFACE (gvir_domain_interface_get_type ())
+#define GVIR_DOMAIN_INTERFACE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),
GVIR_TYPE_DOMAIN_INTERFACE, GVirDomainInterface))
+#define GVIR_DOMAIN_INTERFACE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass),
GVIR_TYPE_DOMAIN_INTERFACE, GVirDomainInterfaceClass))
+#define GVIR_IS_DOMAIN_INTERFACE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj),
GVIR_TYPE_DOMAIN_INTERFACE))
+#define GVIR_IS_DOMAIN_INTERFACE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),
GVIR_TYPE_DOMAIN_INTERFACE))
+#define GVIR_DOMAIN_INTERFACE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),
GVIR_TYPE_DOMAIN_INTERFACE, GVirDomainInterfaceClass))
+
+#define GVIR_TYPE_DOMAIN_INTERFACE_STATS (gvir_domain_interface_stats_get_type())
+
+typedef struct _GVirDomainInterfaceStats GVirDomainInterfaceStats;
+struct _GVirDomainInterfaceStats
+{
+ gint64 rx_bytes;
+ gint64 rx_packets;
+ gint64 rx_errs;
+ gint64 rx_drop;
+ gint64 tx_bytes;
+ gint64 tx_packets;
+ gint64 tx_errs;
+ gint64 tx_drop;
+};
2 questions about this:
* should we use more explicit names (which probably means longer ones)?
* how do we handle ABI compatibility the day we need to add fields to this
struct?
+
+typedef struct _GVirDomainInterface GVirDomainInterface;
+typedef struct _GVirDomainInterfacePrivate GVirDomainInterfacePrivate;
+typedef struct _GVirDomainInterfaceClass GVirDomainInterfaceClass;
+
+struct _GVirDomainInterface
+{
+ GVirDomainDevice parent;
+
+ GVirDomainInterfacePrivate *priv;
+
+ /* Do not add fields to this struct */
+};
+
+struct _GVirDomainInterfaceClass
+{
+ GVirDomainDeviceClass parent_class;
+
+ gpointer padding[20];
+};
+
+GType gvir_domain_interface_get_type(void);
+GType gvir_domain_interface_stats_get_type(void);
+
+GVirDomainInterfaceStats *gvir_domain_interface_get_stats(GVirDomainInterface *self,
GError **err);
+
+G_END_DECLS
+
+#endif /* __LIBVIRT_GOBJECT_DOMAIN_INTERFACE_H__ */
diff --git a/libvirt-gobject/libvirt-gobject.h b/libvirt-gobject/libvirt-gobject.h
index 3bec2c9..6038036 100644
--- a/libvirt-gobject/libvirt-gobject.h
+++ b/libvirt-gobject/libvirt-gobject.h
@@ -31,6 +31,7 @@
#include <libvirt-gobject/libvirt-gobject-enums.h>
#include <libvirt-gobject/libvirt-gobject-stream.h>
#include <libvirt-gobject/libvirt-gobject-domain-device.h>
+#include <libvirt-gobject/libvirt-gobject-domain-interface.h>
#include <libvirt-gobject/libvirt-gobject-domain-snapshot.h>
#include <libvirt-gobject/libvirt-gobject-domain.h>
#include <libvirt-gobject/libvirt-gobject-interface.h>
diff --git a/libvirt-gobject/libvirt-gobject.sym b/libvirt-gobject/libvirt-gobject.sym
index da03001..9118b11 100644
--- a/libvirt-gobject/libvirt-gobject.sym
+++ b/libvirt-gobject/libvirt-gobject.sym
@@ -31,6 +31,10 @@ LIBVIRT_GOBJECT_0.0.1 {
gvir_domain_device_get_type;
+ gvir_domain_interface_get_type;
+ gvir_domain_interface_stats_get_type;
+ gvir_domain_interface_get_stats;
+
gvir_domain_get_type;
gvir_domain_handle_get_type;
gvir_domain_info_get_type;
--
1.7.7
--
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