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[Xen-devel] Re: [PATCH, v2]: xl: Check domain existance when doing domain identifier lookups



On Mon, 24 Jan 2011, Gianni Tedesco wrote:
> Only if was_name is true... If they pass a number then we need to check
> explicitly. Perhaps it would be better to put that check in an else {}
> statement though.
> 

Good point.
Apart from the inconsistent code style:

Acked-by: Stefano Stabellini <stefano.stabellini@xxxxxxxxxxxxx>

> 
> --
> xl: Check domain existance when doing domain identifier lookups
> 
> Also fix a mis-formatted error message in xl destroy command.
> 
> Signed-off-by: Gianni Tedesco <gianni.tedesco@xxxxxxxxxx>
> 
> diff -r b59f04eb8978 tools/libxl/xl_cmdimpl.c
> --- a/tools/libxl/xl_cmdimpl.c        Fri Jan 21 18:06:23 2011 +0000
> +++ b/tools/libxl/xl_cmdimpl.c        Mon Jan 24 18:50:32 2011 +0000
> @@ -143,11 +143,24 @@ static int qualifier_to_id(const char *p
>  static int domain_qualifier_to_domid(const char *p, uint32_t *domid_r,
>                                       int *was_name_r)
>  {
> -    int was_name;
> +    int was_name, rc;
>  
>      was_name = qualifier_to_id(p, domid_r);
> -    if (was_name_r) *was_name_r = was_name;
> -    return was_name ? libxl_name_to_domid(&ctx, p, domid_r) : 0;
> +    if (was_name_r)
> +        *was_name_r = was_name;
> +
> +    if ( was_name ) {
> +        rc = libxl_name_to_domid(&ctx, p, domid_r);
> +        if ( rc )
> +            return rc;
> +    }else{
> +        libxl_dominfo dominfo;
> +        rc = libxl_domain_info(&ctx, &dominfo, *domid_r);
> +        if ( rc )
> +            return rc;
> +    }
> +
> +    return 0;
>  }
>  
>  static int cpupool_qualifier_to_cpupoolid(const char *p, uint32_t *poolid_r,
> @@ -2176,7 +2189,7 @@ static void destroy_domain(const char *p
>          exit(-1);
>      }
>      rc = libxl_domain_destroy(&ctx, domid, 0);
> -    if (rc) { fprintf(stderr,"destroy failed (rc=%d)\n.",rc); exit(-1); }
> +    if (rc) { fprintf(stderr,"destroy failed (rc=%d).\n",rc); exit(-1); }
>  }
>  
>  static void shutdown_domain(const char *p, int wait)
> 
> 
> 

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