linux-kernel - Re: [PATCH v6 RESEND 4/7] perf config: Use combined {fore,back}ground colors value instead of each two color

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Date:	Mon, 8 Aug 2016 15:58:24 -0300
From:	Arnaldo Carvalho de Melo <acme@...nel.org>
To:	Taeung Song <treeze.taeung@...il.com>
Cc:	linux-kernel@...r.kernel.org, Jiri Olsa <jolsa@...nel.org>,
	Namhyung Kim <namhyung@...nel.org>,
	Ingo Molnar <mingo@...nel.org>,
	Peter Zijlstra <peterz@...radead.org>,
	Masami Hiramatsu <mhiramat@...nel.org>,
	Wang Nan <wangnan0@...wei.com>
Subject: Re: [PATCH v6 RESEND 4/7] perf config: Use combined
 {fore,back}ground colors value instead of each two color

Em Tue, Aug 02, 2016 at 06:20:46PM +0900, Taeung Song escreveu:
> To easily set default config values into actual variables for 'colors' config,
> it would be better that actual variables for each 'colors' config
> also have only one value like 'default_config_item' type.
> 
> If we use combined {fore,back}ground colors values in ui_browser_colorset,
> it smoothly work to initialize default config values for 'colors' config
> by 'colors_config_items' array that contains default values for it at util/config.c.
> because both actual variable and config item of 'colors_config_items'
> are equal in the number of values (as just one).
> 
> Cc: Namhyung Kim <namhyung@...nel.org>
> Cc: Jiri Olsa <jolsa@...nel.org>
> Cc: Masami Hiramatsu <mhiramat@...nel.org>
> Cc: Wang Nan <wangnan0@...wei.com>
> Signed-off-by: Taeung Song <treeze.taeung@...il.com>
> ---
>  tools/perf/ui/browser.c | 53 +++++++++++++++++++++++--------------------------
>  1 file changed, 25 insertions(+), 28 deletions(-)
> 
> diff --git a/tools/perf/ui/browser.c b/tools/perf/ui/browser.c
> index 3eb3edb..31e2028 100644
> --- a/tools/perf/ui/browser.c
> +++ b/tools/perf/ui/browser.c
> @@ -503,61 +503,53 @@ unsigned int ui_browser__list_head_refresh(struct ui_browser *browser)
>  }
>  
>  static struct ui_browser_colorset {
> -	const char *name, *fg, *bg;
> +	const char *name, *colors;
>  	int colorset;
>  } ui_browser__colorsets[] = {
>  	{
>  		.colorset = HE_COLORSET_TOP,
>  		.name	  = "top",
> -		.fg	  = "red",
> -		.bg	  = "default",
> +		.colors	  = "red, default",
>  	},
>  	{
>  		.colorset = HE_COLORSET_MEDIUM,
>  		.name	  = "medium",
> -		.fg	  = "green",
> -		.bg	  = "default",
> +		.colors	  = "green, default",
>  	},
>  	{
>  		.colorset = HE_COLORSET_NORMAL,
>  		.name	  = "normal",
> -		.fg	  = "default",
> -		.bg	  = "default",
> +		.colors	  = "default, default",
>  	},
>  	{
>  		.colorset = HE_COLORSET_SELECTED,
>  		.name	  = "selected",
> -		.fg	  = "black",
> -		.bg	  = "yellow",
> +		.colors	  = "black, yellow",
>  	},
>  	{
>  		.colorset = HE_COLORSET_JUMP_ARROWS,
>  		.name	  = "jump_arrows",
> -		.fg	  = "blue",
> -		.bg	  = "default",
> +		.colors	  = "blue, default",
>  	},
>  	{
>  		.colorset = HE_COLORSET_ADDR,
>  		.name	  = "addr",
> -		.fg	  = "magenta",
> -		.bg	  = "default",
> +		.colors	  = "magenta, default",
>  	},
>  	{
>  		.colorset = HE_COLORSET_ROOT,
>  		.name	  = "root",
> -		.fg	  = "white",
> -		.bg	  = "blue",
> +		.colors	  = "white, blue",
>  	},
>  	{
>  		.name = NULL,
>  	}
>  };
>  
> -
>  static int ui_browser__color_config(const char *var, const char *value,
>  				    void *data __maybe_unused)
>  {
> -	char *fg = NULL, *bg;
> +	char *colors;
>  	int i;
>  
>  	/* same dir for all commands */
> @@ -570,22 +562,18 @@ static int ui_browser__color_config(const char *var, const char *value,
>  		if (strcmp(ui_browser__colorsets[i].name, name) != 0)
>  			continue;
>  
> -		fg = strdup(value);
> -		if (fg == NULL)
> -			break;
> +		if (strstr(value, ",") == NULL)
> +			return -1;
>  
> -		bg = strchr(fg, ',');
> -		if (bg == NULL)
> +		colors = strdup(value);
> +		if (colors == NULL)
>  			break;
> +		ui_browser__colorsets[i].colors = colors;
>  
> -		*bg = '\0';
> -		while (isspace(*++bg));
> -		ui_browser__colorsets[i].bg = bg;
> -		ui_browser__colorsets[i].fg = fg;
>  		return 0;
>  	}
>  
> -	free(fg);
> +	free(colors);
>  	return -1;
>  }
>  
> @@ -743,8 +731,17 @@ void ui_browser__init(void)
>  	perf_config(ui_browser__color_config, NULL);
>  
>  	while (ui_browser__colorsets[i].name) {
> +		char *colors, *fg, *bg;
>  		struct ui_browser_colorset *c = &ui_browser__colorsets[i++];
> -		sltt_set_color(c->colorset, c->name, c->fg, c->bg);
> +
> +		colors = strdup(c->colors);
> +		if (fg == NULL)

Huh? At this point fb is not even initialized

> +			break;
> +		fg = strtok(colors, ",");
> +		bg = strtok(NULL, ",");
> +		bg = ltrim(bg);
> +		sltt_set_color(c->colorset, c->name, fg, bg);
> +		free(colors);
>  	}
>  
>  	annotate_browser__init();
> -- 
> 2.5.0