[libvirt] [PATCH 05/12] util: storage: Allow checking whether virStorageFileCreate is supported
Add virStorageFileSupportsCreate which allows silent check whether
virStorageFileCreate is implemented.
Signed-off-by: Peter Krempa <pkrempa(a)redhat.com>
---
src/libvirt_private.syms | 1 +
src/util/virstoragefile.c | 20 ++++++++++++++++++++
src/util/virstoragefile.h | 1 +
3 files changed, 22 insertions(+)
diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms
index cae8febf8d..b86868e954 100644
--- a/src/libvirt_private.syms
+++ b/src/libvirt_private.syms
@@ -2995,6 +2995,7 @@ virStorageFileReportBrokenChain;
virStorageFileResize;
virStorageFileStat;
virStorageFileSupportsAccess;
+virStorageFileSupportsCreate;
virStorageFileSupportsSecurityDriver;
virStorageFileUnlink;
virStorageIsFile;
diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
index 5882d470de..ba56f452e9 100644
--- a/src/util/virstoragefile.c
+++ b/src/util/virstoragefile.c
@@ -4505,6 +4505,26 @@ virStorageFileSupportsAccess(const virStorageSource *src)
}
+/**
+ * virStorageFileSupportsCreate:
+ * @src: a storage file structure
+ *
+ * Check if the storage driver supports creating storage described by @src
+ * via virStorageFileCreate.
+ */
+int
+virStorageFileSupportsCreate(const virStorageSource *src)
+{
+ virStorageFileBackendPtr backend;
+ int rv;
+
+ if ((rv = virStorageFileGetBackendForSupportCheck(src, &backend)) < 1)
+ return rv;
+
+ return backend->storageFileCreate ? 1 : 0;
+}
+
+
void
virStorageFileDeinit(virStorageSourcePtr src)
{
diff --git a/src/util/virstoragefile.h b/src/util/virstoragefile.h
index 38ba901858..2882bacf3e 100644
--- a/src/util/virstoragefile.h
+++ b/src/util/virstoragefile.h
@@ -532,6 +532,7 @@ int virStorageFileChown(const virStorageSource *src, uid_t uid, gid_t
gid);
int virStorageFileSupportsSecurityDriver(const virStorageSource *src);
int virStorageFileSupportsAccess(const virStorageSource *src);
+int virStorageFileSupportsCreate(const virStorageSource *src);
int virStorageFileGetMetadata(virStorageSourcePtr src,
uid_t uid, gid_t gid,
--
2.21.0