[PATCH 03/25] conf: domain: Introduce virDomainDiskDefParseSource

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Add a helper function which will parse the source portion of a <disk>.

The idea is to replace *virDomainDiskDefParse with
VIR_DOMAIN_DEF_PARSE_DISK_SOURCE with the new helper in the future.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
 src/conf/domain_conf.c   | 30 ++++++++++++++++++++++++++++++
 src/conf/domain_conf.h   |  3 +++
 src/libvirt_private.syms |  1 +
 3 files changed, 34 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 6795f0b3be..57cad6ffde 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -9704,6 +9704,21 @@ virDomainDiskDefParseXML(virDomainXMLOption *xmlopt,
 }


+static virStorageSource *
+virDomainDiskDefParseSourceXML(virDomainXMLOption *xmlopt,
+                               xmlNodePtr node,
+                               xmlXPathContextPtr ctxt,
+                               unsigned int flags)
+{
+    g_autoptr(virDomainDiskDef) diskdef = NULL;
+
+    if (!(diskdef = virDomainDiskDefParseXML(xmlopt, node, ctxt,
+                                             flags | VIR_DOMAIN_DEF_PARSE_DISK_SOURCE)))
+        return NULL;
+
+    return g_steal_pointer(&diskdef->src);
+}
+

 /**
  * virDomainParseMemory:
@@ -16445,6 +16460,21 @@ virDomainDiskDefParse(const char *xmlStr,
 }


+virStorageSource *
+virDomainDiskDefParseSource(const char *xmlStr,
+                            virDomainXMLOption *xmlopt,
+                            unsigned int flags)
+{
+    g_autoptr(xmlDoc) xml = NULL;
+    g_autoptr(xmlXPathContext) ctxt = NULL;
+
+    if (!(xml = virXMLParseStringCtxtRoot(xmlStr, _("(disk_definition)"), "disk", &ctxt)))
+        return NULL;
+
+    return virDomainDiskDefParseSourceXML(xmlopt, ctxt->node, ctxt, flags);
+}
+
+
 static const char *
 virDomainChrTargetTypeToString(int deviceType,
                                int targetType)
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 99ab2a96d9..83b9288941 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -3406,6 +3406,9 @@ virDomainDeviceDef *virDomainDeviceDefParse(const char *xmlStr,
 virDomainDiskDef *virDomainDiskDefParse(const char *xmlStr,
                                         virDomainXMLOption *xmlopt,
                                         unsigned int flags);
+virStorageSource *virDomainDiskDefParseSource(const char *xmlStr,
+                                              virDomainXMLOption *xmlopt,
+                                              unsigned int flags);
 virDomainDef *virDomainDefParseString(const char *xmlStr,
                                       virDomainXMLOption *xmlopt,
                                       void *parseOpaque,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 0fcbf546a6..fe3b443171 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -371,6 +371,7 @@ virDomainDiskDefCheckDuplicateInfo;
 virDomainDiskDefFree;
 virDomainDiskDefNew;
 virDomainDiskDefParse;
+virDomainDiskDefParseSource;
 virDomainDiskDetectZeroesTypeFromString;
 virDomainDiskDetectZeroesTypeToString;
 virDomainDiskDeviceTypeToString;
-- 
2.30.2




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