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[libvirt] [libvirt-glib] gconfig: API for SPICE image compression options



From: "Zeeshan Ali (Khattak)" <zeeshanak gnome org>

This patch adds API to set/get image compression options on
domain/graphics[ type='spice'] nodes.

Also included are simple tests for this API.
---
 libvirt-gconfig/Makefile.am                        |   2 +
 .../libvirt-gconfig-domain-graphics-spice-image.c  | 139 +++++++++++++++++++++
 .../libvirt-gconfig-domain-graphics-spice-image.h  |  86 +++++++++++++
 .../libvirt-gconfig-domain-graphics-spice.c        |  34 +++++
 .../libvirt-gconfig-domain-graphics-spice.h        |   7 ++
 libvirt-gconfig/libvirt-gconfig.h                  |   1 +
 libvirt-gconfig/libvirt-gconfig.sym                |  14 +++
 libvirt-gconfig/tests/test-domain-create.c         |  14 +++
 8 files changed, 297 insertions(+)
 create mode 100644 libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.c
 create mode 100644 libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.h

diff --git a/libvirt-gconfig/Makefile.am b/libvirt-gconfig/Makefile.am
index 6b3b2cb..7158bbd 100644
--- a/libvirt-gconfig/Makefile.am
+++ b/libvirt-gconfig/Makefile.am
@@ -41,6 +41,7 @@ GCONFIG_HEADER_FILES = \
 			libvirt-gconfig-domain-graphics.h \
 			libvirt-gconfig-domain-graphics-sdl.h \
 			libvirt-gconfig-domain-graphics-spice.h \
+			libvirt-gconfig-domain-graphics-spice-image.h \
 			libvirt-gconfig-domain-graphics-vnc.h \
 			libvirt-gconfig-domain-input.h \
 			libvirt-gconfig-domain-interface.h \
@@ -118,6 +119,7 @@ GCONFIG_SOURCE_FILES = \
 			libvirt-gconfig-domain-graphics.c \
 			libvirt-gconfig-domain-graphics-sdl.c \
 			libvirt-gconfig-domain-graphics-spice.c \
+			libvirt-gconfig-domain-graphics-spice-image.c \
 			libvirt-gconfig-domain-graphics-vnc.c \
 			libvirt-gconfig-domain-input.c \
 			libvirt-gconfig-domain-interface.c \
diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.c b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.c
new file mode 100644
index 0000000..e4a964a
--- /dev/null
+++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.c
@@ -0,0 +1,139 @@
+/*
+ * libvirt-gconfig-domain-graphics-spice-image.c: libvirt domain SPICE image compression configuration
+ *
+ * Copyright (C) 2013 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
+ *
+ * Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
+ */
+
+#include <config.h>
+#include <string.h>
+
+#include "libvirt-gconfig/libvirt-gconfig.h"
+#include "libvirt-gconfig/libvirt-gconfig-private.h"
+
+#define GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_GET_PRIVATE(obj)                         \
+        (G_TYPE_INSTANCE_GET_PRIVATE((obj), GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE, GVirConfigDomainGraphicsSpiceImagePrivate))
+
+struct _GVirConfigDomainGraphicsSpiceImagePrivate
+{
+    gboolean unused;
+};
+
+G_DEFINE_TYPE(GVirConfigDomainGraphicsSpiceImage, gvir_config_domain_graphics_spice_image, GVIR_CONFIG_TYPE_OBJECT);
+
+
+static void gvir_config_domain_graphics_spice_image_class_init(GVirConfigDomainGraphicsSpiceImageClass *klass)
+{
+    g_type_class_add_private(klass, sizeof(GVirConfigDomainGraphicsSpiceImagePrivate));
+}
+
+
+static void gvir_config_domain_graphics_spice_image_init(GVirConfigDomainGraphicsSpiceImage *image)
+{
+    g_debug("Init GVirConfigDomainGraphicsSpiceImage=%p", image);
+
+    image->priv = GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_GET_PRIVATE(image);
+}
+
+
+GVirConfigDomainGraphicsSpiceImage *gvir_config_domain_graphics_spice_image_new(void)
+{
+    GVirConfigObject *object;
+
+    object = gvir_config_object_new(GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE,
+                                    "image", NULL);
+    return GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE(object);
+}
+
+GVirConfigDomainGraphicsSpiceImage *
+gvir_config_domain_graphics_spice_image_new_from_xml(const gchar *xml,
+                                                     GError **error)
+{
+    GVirConfigObject *object;
+
+    object = gvir_config_object_new_from_xml
+                        (GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE,
+                         "image", NULL, xml, error);
+    return GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE(object);
+}
+
+void gvir_config_domain_graphics_spice_image_set_compression
+    (GVirConfigDomainGraphicsSpiceImage *image,
+     GVirConfigDomainGraphicsSpiceImageCompression compression)
+{
+    const char *str;
+    char *value;
+    guint8 i;
+
+    g_return_if_fail(GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE_IMAGE(image));
+
+    str = gvir_config_genum_get_nick(GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION,
+                                     compression);
+    g_return_if_fail(str != NULL);
+
+    value = g_strdup(str);
+    /* glib-mkenum replaces '_' by default '-' in enum nicks and in this case
+     * we don't want that as libvirt use '_' rather than '-' for SPICE image
+     * compression attribute (unlike other attributes).
+     */
+    for (i = 0; i < strlen(str); i++) {
+        if (value[i] == '-')
+            value[i] = '_';
+    }
+
+    gvir_config_object_set_attribute(GVIR_CONFIG_OBJECT(image),
+                                     "compression", value,
+                                     NULL);
+    g_free(value);
+}
+
+int
+gvir_config_domain_graphics_spice_image_get_compression
+                        (GVirConfigDomainGraphicsSpiceImage *image)
+{
+    const char *str;
+    char *str_value;
+    int value;
+    guint8 i;
+
+    g_return_val_if_fail(GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE_IMAGE(image),
+                         GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_OFF);
+
+    str = gvir_config_object_get_attribute(GVIR_CONFIG_OBJECT(image),
+                                           NULL,
+                                           "compression");
+    if (str == NULL)
+        return GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_AUTO_GLZ;
+
+    str_value = g_strdup(str);
+    /* See comment in gvir_config_domain_graphics_spice_image_set_compression()
+     * for why we are doing this.
+     */
+    for (i = 0; i < strlen(str); i++) {
+        if (str_value[i] == '_')
+            str_value[i] = '-';
+    }
+
+    value = gvir_config_genum_get_value
+        (GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION,
+         str_value,
+         GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_OFF);
+    g_free(str_value);
+
+    return value;
+}
diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.h b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.h
new file mode 100644
index 0000000..6a28d1f
--- /dev/null
+++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.h
@@ -0,0 +1,86 @@
+/*
+ * libvirt-gconfig-domain-graphics-spice-image.h: libvirt domain SPICE image compression configuration
+ *
+ * Copyright (C) 2013 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
+ *
+ * Author: Zeeshan Ali (Khattak) <zeeshanak gnome org>
+ */
+
+#if !defined(__LIBVIRT_GCONFIG_H__) && !defined(LIBVIRT_GCONFIG_BUILD)
+#error "Only <libvirt-gconfig/libvirt-gconfig.h> can be included directly."
+#endif
+
+#ifndef __LIBVIRT_GCONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_H__
+#define __LIBVIRT_GCONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_H__
+
+#include <libvirt-gconfig/libvirt-gconfig-domain-timer.h>
+
+G_BEGIN_DECLS
+
+#define GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE            (gvir_config_domain_graphics_spice_image_get_type ())
+#define GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE, GVirConfigDomainGraphicsSpiceImage))
+#define GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE, GVirConfigDomainGraphicsSpiceImageClass))
+#define GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE_IMAGE(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE))
+#define GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE))
+#define GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE, GVirConfigDomainGraphicsSpiceImageClass))
+
+typedef struct _GVirConfigDomainGraphicsSpiceImage GVirConfigDomainGraphicsSpiceImage;
+typedef struct _GVirConfigDomainGraphicsSpiceImagePrivate GVirConfigDomainGraphicsSpiceImagePrivate;
+typedef struct _GVirConfigDomainGraphicsSpiceImageClass GVirConfigDomainGraphicsSpiceImageClass;
+
+struct _GVirConfigDomainGraphicsSpiceImage
+{
+    GVirConfigObject parent;
+
+    GVirConfigDomainGraphicsSpiceImagePrivate *priv;
+
+    /* Do not add fields to this struct */
+};
+
+struct _GVirConfigDomainGraphicsSpiceImageClass
+{
+    GVirConfigObjectClass parent_class;
+
+    gpointer padding[20];
+};
+
+typedef enum {
+    GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_AUTO_GLZ,
+    GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_AUTO_LZ,
+    GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_QUIC,
+    GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_GLZ,
+    GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_LZ,
+    GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_OFF
+} GVirConfigDomainGraphicsSpiceImageCompression;
+
+GType gvir_config_domain_graphics_spice_image_get_type(void);
+
+GVirConfigDomainGraphicsSpiceImage *
+gvir_config_domain_graphics_spice_image_new(void);
+GVirConfigDomainGraphicsSpiceImage *
+gvir_config_domain_graphics_spice_image_new_from_xml(const gchar *xml,
+                                                     GError **error);
+void gvir_config_domain_graphics_spice_image_set_compression
+                        (GVirConfigDomainGraphicsSpiceImage *image,
+                         GVirConfigDomainGraphicsSpiceImageCompression compression);
+int
+gvir_config_domain_graphics_spice_image_get_compression
+                        (GVirConfigDomainGraphicsSpiceImage *image);
+
+G_END_DECLS
+
+#endif /* __LIBVIRT_GCONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_H__ */
diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c
index d090a3a..f9e13e5 100644
--- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c
+++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.c
@@ -122,3 +122,37 @@ void gvir_config_domain_graphics_spice_set_tls_port(GVirConfigDomainGraphicsSpic
                                                "tlsPort", G_TYPE_INT, port,
                                                NULL);
 }
+
+/**
+ * gvir_config_domain_graphics_spice_get_image:
+ * @graphics: a #GVirConfigDomainGraphicsSpice
+ *
+ * Gets the image compression configuration of @graphics
+ *
+ * Returns: (transfer full): A #GVirConfigDomainGraphicsSpiceImage. The returned
+ * object should be unreffed with g_object_unref() when no longer needed.
+ */
+GVirConfigDomainGraphicsSpiceImage *
+gvir_config_domain_graphics_spice_get_image(GVirConfigDomainGraphicsSpice *graphics)
+{
+    GVirConfigObject *object;
+
+    g_return_val_if_fail(GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE(graphics), NULL);
+
+    object = gvir_config_object_get_child_with_type(GVIR_CONFIG_OBJECT(graphics),
+                                                    "image",
+                                                    GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE_IMAGE);
+
+    return GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE(object);
+}
+
+void gvir_config_domain_graphics_spice_set_image(GVirConfigDomainGraphicsSpice *graphics,
+                                                 GVirConfigDomainGraphicsSpiceImage *image)
+{
+    g_return_if_fail(GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE(graphics));
+    g_return_if_fail(GVIR_CONFIG_IS_DOMAIN_GRAPHICS_SPICE_IMAGE(image));
+
+    gvir_config_object_attach_replace(GVIR_CONFIG_OBJECT(graphics),
+                                      "image",
+                                      GVIR_CONFIG_OBJECT(image));
+}
diff --git a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.h b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.h
index c82615b..7b1596d 100644
--- a/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.h
+++ b/libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.h
@@ -27,6 +27,8 @@
 #ifndef __LIBVIRT_GCONFIG_DOMAIN_GRAPHICS_SPICE_H__
 #define __LIBVIRT_GCONFIG_DOMAIN_GRAPHICS_SPICE_H__
 
+#include "libvirt-gconfig-domain-graphics-spice-image.h"
+
 G_BEGIN_DECLS
 
 #define GVIR_CONFIG_TYPE_DOMAIN_GRAPHICS_SPICE            (gvir_config_domain_graphics_spice_get_type ())
@@ -75,6 +77,11 @@ void gvir_config_domain_graphics_spice_set_port(GVirConfigDomainGraphicsSpice *g
 void gvir_config_domain_graphics_spice_set_tls_port(GVirConfigDomainGraphicsSpice *graphics,
                                                     int port);
 
+GVirConfigDomainGraphicsSpiceImage *
+gvir_config_domain_graphics_spice_get_image(GVirConfigDomainGraphicsSpice *graphics);
+void gvir_config_domain_graphics_spice_set_image(GVirConfigDomainGraphicsSpice *graphics,
+                                                 GVirConfigDomainGraphicsSpiceImage *image);
+
 G_END_DECLS
 
 #endif /* __LIBVIRT_GCONFIG_DOMAIN_GRAPHICS_SPICE_H__ */
diff --git a/libvirt-gconfig/libvirt-gconfig.h b/libvirt-gconfig/libvirt-gconfig.h
index 9feaba2..df9399b 100644
--- a/libvirt-gconfig/libvirt-gconfig.h
+++ b/libvirt-gconfig/libvirt-gconfig.h
@@ -58,6 +58,7 @@
 #include <libvirt-gconfig/libvirt-gconfig-domain-graphics.h>
 #include <libvirt-gconfig/libvirt-gconfig-domain-graphics-sdl.h>
 #include <libvirt-gconfig/libvirt-gconfig-domain-graphics-spice.h>
+#include <libvirt-gconfig/libvirt-gconfig-domain-graphics-spice-image.h>
 #include <libvirt-gconfig/libvirt-gconfig-domain-graphics-vnc.h>
 #include <libvirt-gconfig/libvirt-gconfig-domain-input.h>
 #include <libvirt-gconfig/libvirt-gconfig-domain-interface.h>
diff --git a/libvirt-gconfig/libvirt-gconfig.sym b/libvirt-gconfig/libvirt-gconfig.sym
index d9cff90..a9d8066 100644
--- a/libvirt-gconfig/libvirt-gconfig.sym
+++ b/libvirt-gconfig/libvirt-gconfig.sym
@@ -504,4 +504,18 @@ LIBVIRT_GCONFIG_0.1.5 {
 	gvir_config_domain_smartcard_passthrough_set_source;
 } LIBVIRT_GCONFIG_0.1.4;
 
+LIBVIRT_GCONFIG_0.1.6 {
+  global:
+	gvir_config_domain_graphics_spice_get_image;
+	gvir_config_domain_graphics_spice_set_image;
+
+	gvir_config_domain_graphics_spice_image_get_type;
+	gvir_config_domain_graphics_spice_image_compression_get_type;
+
+	gvir_config_domain_graphics_spice_image_new;
+	gvir_config_domain_graphics_spice_image_new_from_xml;
+	gvir_config_domain_graphics_spice_image_set_compression;
+	gvir_config_domain_graphics_spice_image_get_compression;
+} LIBVIRT_GCONFIG_0.1.5;
+
 # .... define new API here using predicted next version number ....
diff --git a/libvirt-gconfig/tests/test-domain-create.c b/libvirt-gconfig/tests/test-domain-create.c
index 4c94b2a..d8466c8 100644
--- a/libvirt-gconfig/tests/test-domain-create.c
+++ b/libvirt-gconfig/tests/test-domain-create.c
@@ -288,6 +288,20 @@ int main(int argc, char **argv)
     graphics = gvir_config_domain_graphics_spice_new();
     gvir_config_domain_graphics_spice_set_port(graphics, 1234);
     g_assert(gvir_config_domain_graphics_spice_get_port(graphics) == 1234);
+
+    /* SPICE image compression configuration */
+    GVirConfigDomainGraphicsSpiceImage *image;
+
+    image = gvir_config_domain_graphics_spice_image_new();
+    gvir_config_domain_graphics_spice_image_set_compression
+        (image, GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_AUTO_GLZ);
+    gvir_config_domain_graphics_spice_set_image(graphics, image);
+    g_object_unref(G_OBJECT(image));
+    image = gvir_config_domain_graphics_spice_get_image(graphics);
+    g_assert(gvir_config_domain_graphics_spice_image_get_compression(image) ==
+             GVIR_CONFIG_DOMAIN_GRAPHICS_SPICE_IMAGE_COMPRESSION_AUTO_GLZ);
+    g_object_unref(G_OBJECT(image));
+
     devices = g_list_append(devices, GVIR_CONFIG_DOMAIN_DEVICE(graphics));
 
     /* video node */
-- 
1.8.1.4


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