Re: [Xen-devel] [PATCH 04 of 11] libxl: expand the libxl_{cpu, node}map API a bit

[George Dunlap <george.dunlap@xxxxxxxxxxxxx>]

On 31/05/12 13:11, Dario Faggioli wrote:
> By adding copying and *_is_full/*_is_empty facilities.
>
> Signed-off-by: Dario Faggioli<dario.faggioli@xxxxxxxxxx>
>
> diff --git a/tools/libxl/libxl_utils.c b/tools/libxl/libxl_utils.c
> --- a/tools/libxl/libxl_utils.c
> +++ b/tools/libxl/libxl_utils.c
> @@ -505,6 +505,35 @@ static int libxl_map_alloc(libxl_ctx *ct
>       return 0;
>   }
>
> +static void libxl_map_copy(struct libxl_map *dptr,
> +                           const struct libxl_map *sptr)
> +{
> +    int sz;
> +
> +    sz = dptr->size = sptr->size;
> +    memcpy(dptr->map, sptr->map, sz * sizeof(*dptr->map));
> +}
> +
> +int libxl_map_is_full(struct libxl_map *map)
> +{
> +    int i;
> +
> +    for (i = 0; i<  map->size; i++)
> +        if (map->map[i] != (uint8_t)-1)
> +            return -1;
> +    return 0;
> +}
Why are you returning -1 and 0 for false and true, rather than 0 and 1?  
None of the other libxl "_is_" functions (e.g., libxl_is_stubom()) do that.
 -George

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