[libvirt] [PATCH v2 1/7] conf: Introduce virCPUDefCheckFeatures
This API can be used to check whether a CPU definition contains features
matching a given filter.
Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com>
---
src/conf/cpu_conf.c | 33 +++++++++++++++++++++++++++++++++
src/conf/cpu_conf.h | 6 ++++++
src/libvirt_private.syms | 1 +
3 files changed, 40 insertions(+)
diff --git a/src/conf/cpu_conf.c b/src/conf/cpu_conf.c
index 675d214c50..7d16a05283 100644
--- a/src/conf/cpu_conf.c
+++ b/src/conf/cpu_conf.c
@@ -930,6 +930,39 @@ virCPUDefFilterFeatures(virCPUDefPtr cpu,
}
+/**
+ * virCPUDefCheckFeatures:
+ *
+ * Check CPU features for which @filter reports true and store them in a NULL
+ * terminated list returned via @features.
+ *
+ * Returns the number of features matching @filter or -1 on error.
+ */
+int
+virCPUDefCheckFeatures(virCPUDefPtr cpu,
+ virCPUDefFeatureFilter filter,
+ void *opaque,
+ char ***features)
+{
+ VIR_AUTOSTRINGLIST list = NULL;
+ size_t n = 0;
+ size_t i;
+
+ *features = NULL;
+
+ for (i = 0; i < cpu->nfeatures; i++) {
+ if (filter(cpu->features[i].name, opaque)) {
+ if (virStringListAdd(&list, cpu->features[i].name) < 0)
+ return -1;
+ n++;
+ }
+ }
+
+ VIR_STEAL_PTR(*features, list);
+ return n;
+}
+
+
bool
virCPUDefIsEqual(virCPUDefPtr src,
virCPUDefPtr dst,
diff --git a/src/conf/cpu_conf.h b/src/conf/cpu_conf.h
index 906ef5368e..19ce816ec2 100644
--- a/src/conf/cpu_conf.h
+++ b/src/conf/cpu_conf.h
@@ -224,6 +224,12 @@ virCPUDefFilterFeatures(virCPUDefPtr cpu,
virCPUDefFeatureFilter filter,
void *opaque);
+int
+virCPUDefCheckFeatures(virCPUDefPtr cpu,
+ virCPUDefFeatureFilter filter,
+ void *opaque,
+ char ***features);
+
virCPUDefPtr *
virCPUDefListParse(const char **xmlCPUs,
unsigned int ncpus,
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index ab2e4bc6fe..90a6d10666 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -73,6 +73,7 @@ virCapabilitiesSetNetPrefix;
virCPUCacheModeTypeFromString;
virCPUCacheModeTypeToString;
virCPUDefAddFeature;
+virCPUDefCheckFeatures;
virCPUDefCopy;
virCPUDefCopyModel;
virCPUDefCopyModelFilter;
--
2.22.0