[libvirt PATCH v2 11/20] cpu: Add virCPUDataNewCopy

[Tim Wiederhake <twiederh@xxxxxxxxxx>]

Signed-off-by: Tim Wiederhake <twiederh@xxxxxxxxxx>
---
 src/cpu/cpu.c            | 21 +++++++++++++++++++++
 src/cpu/cpu.h            |  7 +++++++
 src/libvirt_private.syms |  1 +
 3 files changed, 29 insertions(+)

diff --git a/src/cpu/cpu.c b/src/cpu/cpu.c
index 0c1c7902f0..b5669246b4 100644
--- a/src/cpu/cpu.c
+++ b/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:
  *
diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
index 7ecb0d6921..d3e5ca79f2 100644
--- a/src/cpu/cpu.h
+++ b/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);
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index 3b6645b4a8..665db255a6 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -1462,6 +1462,7 @@ virCPUDataFormat;
 virCPUDataFree;
 virCPUDataIsIdentical;
 virCPUDataNew;
+virCPUDataNewCopy;
 virCPUDataParse;
 virCPUDataParseNode;
 virCPUExpandFeatures;
-- 
2.31.1