[libvirt] [PATCH 3/5] storage: add new function virStorageBackendConvertImage
virStorageBackendConvertImage can be used to convert image from one
format to another.
---
src/storage/storage_backend.c | 22 ++++++++++++++++++++++
src/storage/storage_backend.h | 5 +++++
2 files changed, 27 insertions(+)
diff --git a/src/storage/storage_backend.c b/src/storage/storage_backend.c
index efb5ce5..8fe5b8b 100644
--- a/src/storage/storage_backend.c
+++ b/src/storage/storage_backend.c
@@ -2194,3 +2194,25 @@ virStorageBackendFindGlusterPoolSources(const char *host
ATTRIBUTE_UNUSED,
return 0;
}
#endif /* #ifdef GLUSTER_CLI */
+
+int virStorageBackendConvertImage(const char* inputPath, virStorageFileFormat
inputFormat,
+ const char* path, virStorageFileFormat format,
+ uid_t uid, gid_t gid, mode_t mode)
+{
+ const char* inFmt = NULL;
+ const char* outFmt = NULL;
+ char* tool = NULL;
+ virCommandPtr cmd = NULL;
+ int ret = -1;
+
+ if (virStorageBackendFindQemuImgTool(&tool) < 0 ||
+ (inFmt = virStorageFileFormatTypeToString(inputFormat)) == NULL ||
+ (outFmt = virStorageFileFormatTypeToString(format)) == NULL)
+ return -1;
+
+ cmd = virCommandNewArgList(tool, "convert", "-f", inFmt,
"-O", outFmt,
+ inputPath, path, NULL);
+ ret = virStorageBackendCreateExec(cmd, path, uid, gid, mode);
+ virCommandFree(cmd);
+ return ret;
+}
diff --git a/src/storage/storage_backend.h b/src/storage/storage_backend.h
index 96b5f39..8e6b2d7 100644
--- a/src/storage/storage_backend.h
+++ b/src/storage/storage_backend.h
@@ -214,6 +214,11 @@ virStorageBackendCreateQemuImgCmdFromVol(virConnectPtr conn,
const char *create_tool,
int imgformat);
+int virStorageBackendConvertImage(const char* inputPath,
+ virStorageFileFormat inputFormat,
+ const char* path,
+ virStorageFileFormat format,
+ uid_t uid, gid_t gid, mode_t mode);
/* ------- virStorageFile backends ------------ */
typedef struct _virStorageFileBackend virStorageFileBackend;
typedef virStorageFileBackend *virStorageFileBackendPtr;
--
1.8.3.1