[PATCH 02/12] conf: Add 'basic' post parse callback

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Add yet another post parse callback, which is executed prior the real
one without @parseOpaque. This is meant to set basics before
@parseOpaque (in case of the qemu driver qemuCaps) can be allocated.

This callback will allow to optimize passing of custom parseOpaque
through the callbacks.
---
 src/conf/domain_conf.c |  9 +++++++++
 src/conf/domain_conf.h | 10 ++++++++++
 2 files changed, 19 insertions(+)

diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 281dc68f0..7c5e6b95a 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -4825,6 +4825,15 @@ virDomainDefPostParse(virDomainDefPtr def,
         .parseOpaque = parseOpaque,
     };

+    /* call the basic post parse callback */
+    if (xmlopt->config.domainPostParseBasicCallback) {
+        ret = xmlopt->config.domainPostParseBasicCallback(def, caps,
+                                                          xmlopt->config.priv);
+
+        if (ret < 0)
+            return ret;
+    }
+
     /* this must be done before the hypervisor-specific callback,
      * in case presence of a controller at a specific index is checked
      */
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index f857f509e..4daf024ea 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2497,6 +2497,15 @@ typedef enum {
 typedef struct _virDomainXMLOption virDomainXMLOption;
 typedef virDomainXMLOption *virDomainXMLOptionPtr;

+
+/* Called after everything else has been parsed, for adjusting basics.
+ * This has similar semantics to virDomainDefPostParseCallback, but no
+ * parseOpaque is used used. This callback is run prior to
+ * virDomainDefPostParseCallback. */
+typedef int (*virDomainDefPostParseBasicCallback)(virDomainDefPtr def,
+                                                  virCapsPtr caps,
+                                                  void *opaque);
+
 /* Called once after everything else has been parsed, for adjusting
  * overall domain defaults.
  * @parseOpaque is opaque data passed by virDomainDefParse* caller,
@@ -2546,6 +2555,7 @@ typedef struct _virDomainDefParserConfig virDomainDefParserConfig;
 typedef virDomainDefParserConfig *virDomainDefParserConfigPtr;
 struct _virDomainDefParserConfig {
     /* driver domain definition callbacks */
+    virDomainDefPostParseBasicCallback domainPostParseBasicCallback;
     virDomainDefPostParseCallback domainPostParseCallback;
     virDomainDeviceDefPostParseCallback devicesPostParseCallback;
     virDomainDefAssignAddressesCallback assignAddressesCallback;
-- 
2.14.0

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