cpu: Add virCPUDataNewCopy

Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>

src/cpu/cpu.c

@@ -294,6 +294,27 @@ virCPUDataNew(virArch arch)
 }
 
 
+/**
+ * virCPUDataNewCopy:
+ *
+ * Returns a copy of @data or NULL on error.
+ */
+virCPUData *
+virCPUDataNewCopy(virCPUData *data)
+{
+    struct cpuArchDriver *driver;
+
+    VIR_DEBUG("data=%p", data);
+
+    if (!data)
+        return NULL;
+
+    if ((driver = cpuGetSubDriver(data->arch)) && driver->dataCopyNew)
+        return driver->dataCopyNew(data);
+
+    return NULL;
+}
+
 /**
  * virCPUDataFree:
  *

src/cpu/cpu.h

@@ -62,6 +62,9 @@ typedef int
                      virCPUData **forbidden,
                      virCPUData **vendor);
 
+typedef virCPUData *
+(*cpuArchDataCopyNew)(virCPUData *data);
+
 typedef void
 (*cpuArchDataFree)  (virCPUData *data);
 
@@ -134,6 +137,7 @@ struct cpuArchDriver {
     virCPUArchCompare   compare;
     cpuArchDecode       decode;
     cpuArchEncode       encode;
+    cpuArchDataCopyNew  dataCopyNew;
     cpuArchDataFree     dataFree;
     virCPUArchGetHost   getHost;
     virCPUArchBaseline baseline;
@@ -188,6 +192,9 @@ cpuEncode   (virArch arch,
 virCPUData *
 virCPUDataNew(virArch arch);
 
+virCPUData *
+virCPUDataNewCopy(virCPUData *data);
+
 void
 virCPUDataFree(virCPUData *data);
 G_DEFINE_AUTOPTR_CLEANUP_FUNC(virCPUData, virCPUDataFree);

src/libvirt_private.syms

@@ -1464,6 +1464,7 @@ virCPUDataFormat;
 virCPUDataFree;
 virCPUDataIsIdentical;
 virCPUDataNew;
+virCPUDataNewCopy;
 virCPUDataParse;
 virCPUDataParseNode;
 virCPUExpandFeatures;