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Re: [Xen-devel] [PATCH v2 2/5] libxl: add libxl__xs_path_cleanup



On Tue, 2012-04-17 at 16:51 +0100, Roger Pau Monne wrote:
> Add a function which behaves like "xenstore-rm -t", and which will be used to
> clean xenstore after unplug since we will be no longer executing
> xen-hotplug-cleanup script, that used to do that for us.

Can you put this in libxl_xshelp.c and a prototype in libxl_internal.h,
please. Also it should include a comment in the header describing the
function and what it does.

> 
> Signed-off-by: Roger Pau Monne <roger.pau@xxxxxxxxxx>
> ---
>  tools/libxl/libxl_device.c |   21 +++++++++++++++++++++
>  1 files changed, 21 insertions(+), 0 deletions(-)
> 
> diff --git a/tools/libxl/libxl_device.c b/tools/libxl/libxl_device.c
> index c7e057d..fe4bcc6 100644
> --- a/tools/libxl/libxl_device.c
> +++ b/tools/libxl/libxl_device.c
> @@ -356,6 +356,27 @@ int libxl__device_disk_dev_number(const char *virtpath, 
> int *pdisk,
>      return -1;
>  }
>  
> +static int libxl__xs_path_cleanup(libxl__gc *gc, char *path)
> +{
> +    libxl_ctx *ctx = libxl__gc_owner(gc);
> +    unsigned int nb = 0;
> +    char *last;
> +
> +    if (!path)
> +        return 0;
> +
> +    xs_rm(ctx->xsh, XBT_NULL, path);
> +
> +    for (last = strrchr(path, '/'); last != NULL; last = strrchr(path, '/')) 
> {
> +        *last = '\0';
> +        if (!libxl__xs_directory(gc, XBT_NULL, path, &nb))
> +            continue;
> +        if (nb == 0) {
> +            xs_rm(ctx->xsh, XBT_NULL, path);
> +        }
> +    }
> +    return 0;
> +}
>  
>  typedef struct {
>      libxl__ao *ao;



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