linux-kernel - Re: [PATCH 2/9] perf, tools, stat: Abstract stat metrics printing

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Date:	Fri, 4 Sep 2015 11:00:30 +0200
From:	Jiri Olsa <jolsa@...hat.com>
To:	Andi Kleen <andi@...stfloor.org>
Cc:	acme@...nel.org, jolsa@...nel.org, linux-kernel@...r.kernel.org,
	Andi Kleen <ak@...ux.intel.com>
Subject: Re: [PATCH 2/9] perf, tools, stat: Abstract stat metrics printing

On Wed, Sep 02, 2015 at 04:35:47PM -0700, Andi Kleen wrote:

SNIP

> diff --git a/tools/perf/util/stat.h b/tools/perf/util/stat.h
> index 62448c8..bb07e46 100644
> --- a/tools/perf/util/stat.h
> +++ b/tools/perf/util/stat.h
> @@ -67,11 +67,21 @@ void perf_stat_evsel_id_init(struct perf_evsel *evsel);
>  
>  extern struct stats walltime_nsecs_stats;
>  
> +typedef void (*print_metric_t)(void *ctx, const char *color, const char *unit,
> +			       const char *fmt, double val);
> +
>  void perf_stat__reset_shadow_stats(void);
>  void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
>  				    int cpu);
> -void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
> -				   double avg, int cpu, enum aggr_mode aggr);
> +struct perf_stat_output_ctx {
> +	void *ctx;
> +	print_metric_t print_metric;
> +	void (*new_line)(void *ctx);

please add typedef for new_line as well

jirka
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