On Thu, Oct 29, 2015 at 14:43:08 +0100, Matthias Gatto wrote:
> Create virStorageSourceGetBackingStore function in
> preparation for quorum:
> Actually, if we want to get a backing store inside a virStorageSource
> we have to do it manually(src->backingStore = backingStore).
> The problem is that with a quorum, a virStorageSource
> can contain multiple backing stores, and src->backingStore can
> be treated as a virStorageSourcePtr or a virStorageSourcePtrPtr.
>
> Due to these reason, we need to simplify the manipulation of
> virStorageSource, and create a function to get the asked
> backingStore in a virStorageSource
>
> For now, this function only return the backingStore field
>
> Signed-off-by: Matthias Gatto <matthias.gatto@xxxxxxxxxxxx>
> ---
> src/libvirt_private.syms | 1 +
> src/util/virstoragefile.c | 8 ++++++++
> src/util/virstoragefile.h | 3 +++
> 3 files changed, 12 insertions(+)
>
...
> diff --git a/src/util/virstoragefile.c b/src/util/virstoragefile.c
> index 2aa1d90..3fad323 100644
> --- a/src/util/virstoragefile.c
> +++ b/src/util/virstoragefile.c
> @@ -1809,6 +1809,14 @@ virStorageSourcePoolDefCopy(const virStorageSourcePoolDef *src)
> }
>
>
> +virStorageSourcePtr
> +virStorageSourceGetBackingStore(const virStorageSource *src,
> + size_t pos ATTRIBUTE_UNUSED)
> +{
This should return NULL in cases when 'pos' is out of range.
> + return src->backingStore;
> +}
Peter
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