[PATCH 08/15] util: virstoragefile: Add data structure for storing storage source slices

[Peter Krempa <pkrempa@xxxxxxxxxx>]

Introduce virStorageSourceSlice which will store the 'offset' and 'size'
of a virStorageSource and declare it as 'sliceStorage' and 'sliceFormat'
attributes of a virStorageSource.

Signed-off-by: Peter Krempa <pkrempa@xxxxxxxxxx>
---
 src/util/virstoragefile.c | 18 ++++++++++++++++++
 src/util/virstoragefile.h | 12 ++++++++++++
 2 files changed, 30 insertions(+)

diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 7ffb2cdcf4..30d5a2fe67 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -2248,6 +2248,18 @@ virStorageSourcePoolDefCopy(const virStorageSourcePoolDef *src)
 }


+static virStorageSourceSlicePtr
+virStorageSourceSliceCopy(const virStorageSourceSlice *src)
+{
+    virStorageSourceSlicePtr ret = g_new0(virStorageSourceSlice, 1);
+
+    ret->offset = src->offset;
+    ret->size = src->size;
+
+    return ret;
+}
+
+
 /**
  * virStorageSourcePtr:
  *
@@ -2302,6 +2314,9 @@ virStorageSourceCopy(const virStorageSource *src,
     def->tlsAlias = g_strdup(src->tlsAlias);
     def->tlsCertdir = g_strdup(src->tlsCertdir);

+    def->sliceFormat = virStorageSourceSliceCopy(src->sliceFormat);
+    def->sliceStorage = virStorageSourceSliceCopy(src->sliceStorage);
+
     if (src->nhosts) {
         if (!(def->hosts = virStorageNetHostDefCopy(src->nhosts, src->hosts)))
             return NULL;
@@ -2581,6 +2596,9 @@ virStorageSourceClear(virStorageSourcePtr def)
     VIR_FREE(def->timestamps);
     VIR_FREE(def->externalDataStoreRaw);

+    VIR_FREE(def->sliceFormat);
+    VIR_FREE(def->sliceStorage);
+
     virObjectUnref(def->externalDataStore);
     def->externalDataStore = NULL;

diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index 39e50a989d..a6b474ec51 100644
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -242,6 +242,15 @@ struct _virStorageSourceNVMeDef {
     /* Don't forget to update virStorageSourceNVMeDefCopy */
 };

+
+typedef struct _virStorageSourceSlice virStorageSourceSlice;
+typedef virStorageSourceSlice *virStorageSourceSlicePtr;
+struct _virStorageSourceSlice {
+    unsigned long long offset;
+    unsigned long long size;
+};
+
+
 typedef struct _virStorageDriverData virStorageDriverData;
 typedef virStorageDriverData *virStorageDriverDataPtr;

@@ -286,6 +295,9 @@ struct _virStorageSource {
     bool nocow;
     bool sparse;

+    virStorageSourceSlicePtr sliceFormat;
+    virStorageSourceSlicePtr sliceStorage;
+
     virStoragePermsPtr perms;
     virStorageTimestampsPtr timestamps;
     unsigned long long capacity; /* in bytes, 0 if unknown */
-- 
2.24.1