Reviewed-by: Mark Janes <[email protected]>
Jason Ekstrand <[email protected]> writes:
> This adds functions for splicing one list into another. These have
> more-or-less the same API as the kernel list splicing functions.
> ---
> src/util/list.h | 22 ++++++++++++++++++++++
> 1 file changed, 22 insertions(+)
>
> diff --git a/src/util/list.h b/src/util/list.h
> index b98ce59..d4b4851 100644
> --- a/src/util/list.h
> +++ b/src/util/list.h
> @@ -108,6 +108,28 @@ static inline unsigned list_length(struct list_head
> *list)
> return length;
> }
>
> +static inline void list_splice(struct list_head *src, struct list_head *dst)
> +{
> + if (list_empty(src))
> + return;
> +
> + src->next->prev = dst;
> + src->prev->next = dst->next;
> + dst->next->prev = src->prev;
> + dst->next = src->next;
> +}
> +
> +static inline void list_splicetail(struct list_head *src, struct list_head
> *dst)
> +{
> + if (list_empty(src))
> + return;
> +
> + src->prev->next = dst;
> + src->next->prev = dst->prev;
> + dst->prev->next = src->next;
> + dst->prev = src->prev;
> +}
> +
> static inline void list_validate(struct list_head *list)
> {
> struct list_head *node;
> --
> 2.5.0.400.gff86faf
>
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