[libvirt] [libvirt-glib 01/23] Add helpers in libvirt-gconfig-helpers.[ch]
Christophe Fergeau
cfergeau at redhat.com
Fri Oct 7 09:40:46 UTC 2011
These helper functions will be useful later on.
---
examples/Makefile.am | 1 +
libvirt-gconfig/Makefile.am | 3 +
libvirt-gconfig/libvirt-gconfig-helpers.c | 179 +++++++++++++++++++++++++++++
libvirt-gconfig/libvirt-gconfig-helpers.h | 48 ++++++++
libvirt-gconfig/libvirt-gconfig-object.c | 52 ---------
libvirt-gconfig/libvirt-gconfig.h | 2 +
libvirt-gconfig/libvirt-gconfig.sym | 1 +
libvirt-gobject/Makefile.am | 2 +
8 files changed, 236 insertions(+), 52 deletions(-)
create mode 100644 libvirt-gconfig/libvirt-gconfig-helpers.c
create mode 100644 libvirt-gconfig/libvirt-gconfig-helpers.h
diff --git a/examples/Makefile.am b/examples/Makefile.am
index 0964597..d88c0e1 100644
--- a/examples/Makefile.am
+++ b/examples/Makefile.am
@@ -19,6 +19,7 @@ conn_test_CFLAGS = \
$(WARN_CFLAGS) \
$(GLIB2_CFLAGS) \
$(LIBVIRT_CFLAGS) \
+ $(LIBXML2_CFLAGS) \
-I$(top_srcdir)
conn_test_SOURCES = \
conn-test.c
diff --git a/libvirt-gconfig/Makefile.am b/libvirt-gconfig/Makefile.am
index 180d5ee..634ad5a 100644
--- a/libvirt-gconfig/Makefile.am
+++ b/libvirt-gconfig/Makefile.am
@@ -9,6 +9,7 @@ GCONFIG_HEADER_FILES = \
libvirt-gconfig-capabilities.h \
libvirt-gconfig-domain.h \
libvirt-gconfig-domain-snapshot.h \
+ libvirt-gconfig-helpers.h \
libvirt-gconfig-interface.h \
libvirt-gconfig-network.h \
libvirt-gconfig-network-filter.h \
@@ -21,6 +22,7 @@ GCONFIG_SOURCE_FILES = \
libvirt-gconfig-capabilities.c \
libvirt-gconfig-domain.c \
libvirt-gconfig-domain-snapshot.c \
+ libvirt-gconfig-helpers.c \
libvirt-gconfig-interface.c \
libvirt-gconfig-network.c \
libvirt-gconfig-network-filter.c \
@@ -70,6 +72,7 @@ LibvirtGConfig-1.0.gir: libvirt-gconfig-1.0.la $(G_IR_SCANNER) Makefile.am
--output $@ \
-I$(top_srcdir) \
-I$(top_builddir) \
+ $(LIBXML2_CFLAGS) \
--verbose \
--pkg=gobject-2.0 \
--c-include="libvirt-gconfig/libvirt-gconfig.h" \
diff --git a/libvirt-gconfig/libvirt-gconfig-helpers.c b/libvirt-gconfig/libvirt-gconfig-helpers.c
new file mode 100644
index 0000000..2fbfa9e
--- /dev/null
+++ b/libvirt-gconfig/libvirt-gconfig-helpers.c
@@ -0,0 +1,179 @@
+/*
+ * libvirt-gconfig-helpers.c: various GVirConfig helpers
+ *
+ * Copyright (C) 2010, 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
+ *
+ * Authors: Daniel P. Berrange <berrange at redhat.com>
+ * Christophe Fergeau <cfergeau at gmail.com>
+ */
+
+#include <config.h>
+
+#include <string.h>
+
+#include <libxml/xmlerror.h>
+
+#include "libvirt-gconfig/libvirt-gconfig.h"
+
+GQuark
+gvir_config_object_error_quark(void)
+{
+ return g_quark_from_static_string("gvir-config-object");
+}
+
+static GError *gvir_xml_error_new_literal(GQuark domain,
+ gint code,
+ const gchar *message)
+{
+ xmlErrorPtr xerr = xmlGetLastError();
+
+ if (!xerr)
+ return NULL;
+
+ if (message)
+ return g_error_new(domain,
+ code,
+ "%s: %s",
+ message,
+ xerr->message);
+ else
+ return g_error_new(domain,
+ code,
+ "%s",
+ xerr->message);
+}
+
+
+GError *gvir_xml_error_new(GQuark domain,
+ gint code,
+ const gchar *format,
+ ...)
+{
+ GError *err;
+ va_list args;
+ gchar *message;
+
+ va_start(args, format);
+ message = g_strdup_vprintf(format, args);
+ va_end(args);
+
+ err = gvir_xml_error_new_literal(domain, code, message);
+
+ g_free(message);
+
+ return err;
+}
+
+xmlNodePtr
+gvir_config_xml_parse(const char *xml, const char *root_node, GError **err)
+{
+ xmlDocPtr doc;
+
+ if (!xml) {
+ *err = g_error_new(GVIR_CONFIG_OBJECT_ERROR,
+ 0,
+ "%s",
+ "No XML document to parse");
+ return NULL;
+ }
+
+ doc = xmlParseMemory(xml, strlen(xml));
+ if (!doc) {
+ *err = gvir_xml_error_new(GVIR_CONFIG_OBJECT_ERROR,
+ 0,
+ "%s",
+ "Unable to parse configuration");
+ return NULL;
+ }
+ if ((!doc->children) || (strcmp((char *)doc->children->name, root_node) != 0)) {
+ *err = g_error_new(GVIR_CONFIG_OBJECT_ERROR,
+ 0,
+ "XML data has no '%s' node",
+ root_node);
+ xmlFreeDoc(doc);
+ return NULL;
+ }
+
+ return doc->children;
+}
+
+
+/*
+ * gvir_config_xml_get_element, gvir_config_xml_get_child_element_content
+ * and gvir_config_xml_get_child_element_content_glib are:
+ *
+ * Copyright (C) 2006, 2007 OpenedHand Ltd.
+ *
+ * Author: Jorn Baayen <jorn at openedhand.com>
+ */
+xmlNode *
+gvir_config_xml_get_element (xmlNode *node, ...)
+{
+ va_list var_args;
+
+ va_start (var_args, node);
+
+ while (TRUE) {
+ const char *arg;
+
+ arg = va_arg (var_args, const char *);
+ if (!arg)
+ break;
+
+ for (node = node->children; node; node = node->next)
+ if (!g_strcmp0 (arg, (char *) node->name))
+ break;
+
+ if (!node)
+ break;
+ }
+
+ va_end (var_args);
+
+ return node;
+}
+
+xmlChar *
+gvir_config_xml_get_child_element_content (xmlNode *node,
+ const char *child_name)
+{
+ xmlNode *child_node;
+
+ child_node = gvir_config_xml_get_element (node, child_name, NULL);
+ if (!child_node)
+ return NULL;
+
+ return xmlNodeGetContent (child_node);
+}
+
+char *
+gvir_config_xml_get_child_element_content_glib (xmlNode *node,
+ const char *child_name)
+{
+ xmlChar *content;
+ char *copy;
+
+ content = gvir_config_xml_get_child_element_content (node, child_name);
+ if (!content)
+ return NULL;
+
+ copy = g_strdup ((char *) content);
+
+ xmlFree (content);
+
+ return copy;
+}
diff --git a/libvirt-gconfig/libvirt-gconfig-helpers.h b/libvirt-gconfig/libvirt-gconfig-helpers.h
new file mode 100644
index 0000000..1bdf2d0
--- /dev/null
+++ b/libvirt-gconfig/libvirt-gconfig-helpers.h
@@ -0,0 +1,48 @@
+/*
+ * libvirt-gconfig-helpers.h: various GVirConfig helpers
+ *
+ * Copyright (C) 2010, 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
+ *
+ * Authors: Daniel P. Berrange <berrange at redhat.com>
+ * Christophe Fergeau <cfergeau at gmail.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_HELPERS_H__
+#define __LIBVIRT_GCONFIG_HELPERS_H__
+
+G_BEGIN_DECLS
+
+GQuark gvir_config_object_error_quark(void);
+#define GVIR_CONFIG_OBJECT_ERROR gvir_config_object_error_quark()
+
+GError *gvir_xml_error_new(GQuark domain, gint code,
+ const gchar *format, ...);
+xmlNodePtr gvir_config_xml_parse(const char *xml,
+ const char *root_node,
+ GError **err);
+xmlNode * gvir_config_xml_get_element (xmlNode *node, ...);
+xmlChar * gvir_config_xml_get_child_element_content (xmlNode *node,
+ const char *child_name);
+char *gvir_config_xml_get_child_element_content_glib (xmlNode *node,
+ const char *child_name);
+G_END_DECLS
+
+#endif /* __LIBVIRT_GCONFIG_HELPERS_H__ */
diff --git a/libvirt-gconfig/libvirt-gconfig-object.c b/libvirt-gconfig/libvirt-gconfig-object.c
index 95b147f..4a58323 100644
--- a/libvirt-gconfig/libvirt-gconfig-object.c
+++ b/libvirt-gconfig/libvirt-gconfig-object.c
@@ -55,58 +55,6 @@ enum {
};
-#define GVIR_CONFIG_OBJECT_ERROR gvir_config_object_error_quark()
-
-
-static GQuark
-gvir_config_object_error_quark(void)
-{
- return g_quark_from_static_string("gvir-config-object");
-}
-
-static GError *gvir_xml_error_new_literal(GQuark domain,
- gint code,
- const gchar *message)
-{
- xmlErrorPtr xerr = xmlGetLastError();
-
- if (!xerr)
- return NULL;
-
- if (message)
- return g_error_new(domain,
- code,
- "%s: %s",
- message,
- xerr->message);
- else
- return g_error_new(domain,
- code,
- "%s",
- xerr->message);
-}
-
-
-static GError *gvir_xml_error_new(GQuark domain,
- gint code,
- const gchar *format,
- ...)
-{
- GError *err;
- va_list args;
- gchar *message;
-
- va_start(args, format);
- message = g_strdup_vprintf(format, args);
- va_end(args);
-
- err = gvir_xml_error_new_literal(domain, code, message);
-
- g_free(message);
-
- return err;
-}
-
static void gvir_xml_generic_error_nop(void *userData G_GNUC_UNUSED,
const char *msg G_GNUC_UNUSED,
...)
diff --git a/libvirt-gconfig/libvirt-gconfig.h b/libvirt-gconfig/libvirt-gconfig.h
index c561804..fdc78a4 100644
--- a/libvirt-gconfig/libvirt-gconfig.h
+++ b/libvirt-gconfig/libvirt-gconfig.h
@@ -24,7 +24,9 @@
#define __LIBVIRT_GCONFIG_H__
#include <glib-object.h>
+#include <libxml/tree.h>
+#include <libvirt-gconfig/libvirt-gconfig-helpers.h>
#include <libvirt-gconfig/libvirt-gconfig-object.h>
#include <libvirt-gconfig/libvirt-gconfig-capabilities.h>
#include <libvirt-gconfig/libvirt-gconfig-domain.h>
diff --git a/libvirt-gconfig/libvirt-gconfig.sym b/libvirt-gconfig/libvirt-gconfig.sym
index 2d09c37..24407c3 100644
--- a/libvirt-gconfig/libvirt-gconfig.sym
+++ b/libvirt-gconfig/libvirt-gconfig.sym
@@ -22,6 +22,7 @@ LIBVIRT_GOBJECT_0.0.1 {
gvir_config_node_device_new;
gvir_config_object_get_type;
+ gvir_config_object_error_quark;
gvir_config_object_new;
gvir_config_object_get_doc;
gvir_config_object_get_schema;
diff --git a/libvirt-gobject/Makefile.am b/libvirt-gobject/Makefile.am
index 7013675..b482aa5 100644
--- a/libvirt-gobject/Makefile.am
+++ b/libvirt-gobject/Makefile.am
@@ -51,6 +51,7 @@ libvirt_gobject_1_0_la_CFLAGS = \
$(LIBVIRT_CFLAGS) \
$(GOBJECT2_CFLAGS) \
$(GIO2_CFLAGS) \
+ $(LIBXML2_CFLAGS) \
$(WARN_CFLAGS)
libvirt_gobject_1_0_la_LIBADD = \
$(LIBVIRT_LIBS) \
@@ -116,6 +117,7 @@ LibvirtGObject-1.0.gir: libvirt-gobject-1.0.la $(G_IR_SCANNER) Makefile.am
--output $@ \
-I$(top_srcdir) \
-I$(top_builddir) \
+ $(LIBXML2_CFLAGS) \
--verbose \
--pkg=gobject-2.0 \
--pkg=gthread-2.0 \
--
1.7.6.4
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