[Xen-devel] Re: [PATCH RESEND V8 4/7] libxl: Introduce libxl__realloc.

[Ian Campbell <Ian.Campbell@xxxxxxxxxxxxx>]

On Wed, 2011-09-21 at 13:59 +0100, Anthony PERARD wrote:
> Signed-off-by: Anthony PERARD <anthony.perard@xxxxxxxxxx>

Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>

> ---
>  tools/libxl/libxl_internal.c |   24 ++++++++++++++++++++++++
>  tools/libxl/libxl_internal.h |    1 +
>  2 files changed, 25 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/libxl/libxl_internal.c b/tools/libxl/libxl_internal.c
> index e259278..c4d54f9 100644
> --- a/tools/libxl/libxl_internal.c
> +++ b/tools/libxl/libxl_internal.c
> @@ -102,6 +102,30 @@ void *libxl__calloc(libxl__gc *gc, size_t nmemb, size_t 
> size)
>      return ptr;
>  }
>  
> +void *libxl__realloc(libxl__gc *gc, void *ptr, size_t new_size)
> +{
> +    void *new_ptr = realloc(ptr, new_size);
> +    int i = 0;
> +
> +    if (new_ptr == NULL && new_size != 0) {
> +        return NULL;
> +    }
> +
> +    if (ptr == NULL) {
> +        libxl__ptr_add(gc, new_ptr);
> +    } else if (new_ptr != ptr) {
> +        for (i = 0; i < gc->alloc_maxsize; i++) {
> +            if (gc->alloc_ptrs[i] == ptr) {
> +                gc->alloc_ptrs[i] = new_ptr;
> +                break;
> +            }
> +        }
> +    }
> +
> +
> +    return new_ptr;
> +}
> +
>  char *libxl__sprintf(libxl__gc *gc, const char *fmt, ...)
>  {
>      char *s;
> diff --git a/tools/libxl/libxl_internal.h b/tools/libxl/libxl_internal.h
> index 739e45e..5d270bb 100644
> --- a/tools/libxl/libxl_internal.h
> +++ b/tools/libxl/libxl_internal.h
> @@ -145,6 +145,7 @@ _hidden int libxl__ptr_add(libxl__gc *gc, void *ptr);
>  _hidden void libxl__free_all(libxl__gc *gc);
>  _hidden void *libxl__zalloc(libxl__gc *gc, int bytes);
>  _hidden void *libxl__calloc(libxl__gc *gc, size_t nmemb, size_t size);
> +_hidden void *libxl__realloc(libxl__gc *gc, void *ptr, size_t new_size);
>  _hidden char *libxl__sprintf(libxl__gc *gc, const char *fmt, ...) 
> PRINTF_ATTRIBUTE(2, 3);
>  _hidden char *libxl__strdup(libxl__gc *gc, const char *c);
>  _hidden char *libxl__dirname(libxl__gc *gc, const char *s);



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