On Mon, Jan 26, 2015 at 06:38:23PM +0800, Wang Nan wrote:
> Introduce a priv field to 'struct format_field' for futher expansion.
> 
> (In https://lkml.org/lkml/2015/1/21/383 , Jiri Olsa gives a suggestion
>  about changing lib traceevent to solve a bug of perf-convert-to-ctf,
>  which is related to duplicated field names. I think his suggestion
>  should be something like this patch. )

Hi Steven,
any feedback on this one?

thanks,
jirka

> 
> Signed-off-by: Wang Nan <[email protected]>
> ---
>  tools/lib/traceevent/event-parse.c | 2 ++
>  tools/lib/traceevent/event-parse.h | 2 ++
>  2 files changed, 4 insertions(+)
> 
> diff --git a/tools/lib/traceevent/event-parse.c 
> b/tools/lib/traceevent/event-parse.c
> index cf3a44b..5f76003 100644
> --- a/tools/lib/traceevent/event-parse.c
> +++ b/tools/lib/traceevent/event-parse.c
> @@ -5909,6 +5909,8 @@ static void free_format_fields(struct format_field 
> *field)
>               free(field->type);
>               free(field->name);
>               free(field);
> +             if (field->destroy_priv)
> +                     field->destroy_priv(field);
>               field = next;
>       }
>  }
> diff --git a/tools/lib/traceevent/event-parse.h 
> b/tools/lib/traceevent/event-parse.h
> index 7a3873f..928d801 100644
> --- a/tools/lib/traceevent/event-parse.h
> +++ b/tools/lib/traceevent/event-parse.h
> @@ -190,6 +190,8 @@ struct format_field {
>       unsigned int            arraylen;
>       unsigned int            elementsize;
>       unsigned long           flags;
> +     void                    *priv;
> +     void                    (*destroy_priv)(struct format_field *);
>  };
>  
>  struct format {
> -- 
> 1.8.4
> 
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