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[libvirt] [PATCH 2/3] Helper function for making a deep-copy of virCPUDefPtr



---
 src/conf/cpu_conf.c      |   37 +++++++++++++++++++++++++++++++++++++
 src/conf/cpu_conf.h      |    3 +++
 src/libvirt_private.syms |    1 +
 3 files changed, 41 insertions(+), 0 deletions(-)

diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c
index 612e376..cf91930 100644
--- a/src/conf/cpu_conf.c
+++ b/src/conf/cpu_conf.c
@@ -67,6 +67,43 @@ virCPUDefFree(virCPUDefPtr def)
 }
 
 
+virCPUDefPtr
+virCPUDefCopy(const virCPUDefPtr cpu)
+{
+    virCPUDefPtr copy;
+    unsigned int i;
+
+    if (!cpu)
+        return NULL;
+
+    if (VIR_ALLOC(copy) < 0
+        || (cpu->arch && !(copy->arch = strdup(cpu->arch)))
+        || (cpu->model && !(copy->model = strdup(cpu->model)))
+        || VIR_ALLOC_N(copy->features, cpu->nfeatures) < 0)
+        goto no_memory;
+
+    copy->type = cpu->type;
+    copy->match = cpu->match;
+    copy->sockets = cpu->sockets;
+    copy->cores = cpu->cores;
+    copy->threads = cpu->threads;
+    copy->nfeatures = cpu->nfeatures;
+
+    for (i = 0; i < copy->nfeatures; i++) {
+        copy->features[i].policy = cpu->features[i].policy;
+        if (!(copy->features[i].name = strdup(cpu->features[i].name)))
+            goto no_memory;
+    }
+
+    return copy;
+
+no_memory:
+    virReportOOMError();
+    virCPUDefFree(copy);
+    return NULL;
+}
+
+
 #ifndef PROXY
 virCPUDefPtr
 virCPUDefParseXML(const xmlNodePtr node,
diff --git a/src/conf/cpu_conf.h b/src/conf/cpu_conf.h
index bb8a844..a30991d 100644
--- a/src/conf/cpu_conf.h
+++ b/src/conf/cpu_conf.h
@@ -83,6 +83,9 @@ struct _virCPUDef {
 void
 virCPUDefFree(virCPUDefPtr def);
 
+virCPUDefPtr
+virCPUDefCopy(const virCPUDefPtr cpu);
+
 # ifndef PROXY
 virCPUDefPtr
 virCPUDefParseXML(const xmlNodePtr node,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 9c16a6d..0ae143c 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -90,6 +90,7 @@ virCPUDefParseXML;
 virCPUDefFormat;
 virCPUDefFormatBuf;
 virCPUDefAddFeature;
+virCPUDefCopy;
 
 
 # datatypes.h
-- 
1.7.0.3


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