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Commit 81a888fe authored by Jiri Olsa's avatar Jiri Olsa Committed by Arnaldo Carvalho de Melo
Browse files

perf hists browser: Display columns header text on 'H' press 



Displaying columns header text whenever 'H' is pressed,
and hiding it on on another press.

Signed-off-by: default avatarJiri Olsa <jolsa@kernel.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Corey Ashford <cjashfor@linux.vnet.ibm.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-w9pcqpum5erza2a05ysvollz@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent 025bf7ea

tools/perf/ui/browsers/hists.c

+45 −2
Original line number Original line Diff line number Diff line
@@ -822,11 +822,54 @@ static int hist_browser__show_entry(struct hist_browser *browser, 
	return printed;

	return printed;

}

}





static int advance_hpp_check(struct perf_hpp *hpp, int inc)

{

	advance_hpp(hpp, inc);

	return hpp->size <= 0;

}



static int hists__scnprintf_headers(char *buf, size_t size, struct hists *hists)

{

	struct perf_hpp dummy_hpp = {

		.buf    = buf,

		.size   = size,

	};

	struct perf_hpp_fmt *fmt;

	size_t ret = 0;



	if (symbol_conf.use_callchain) {

		ret = scnprintf(buf, size, "  ");

		if (advance_hpp_check(&dummy_hpp, ret))

			return ret;

	}



	perf_hpp__for_each_format(fmt) {

		if (perf_hpp__should_skip(fmt))

			continue;



		/* We need to add the length of the columns header. */

		perf_hpp__reset_width(fmt, hists);



		ret = fmt->header(fmt, &dummy_hpp, hists_to_evsel(hists));

		if (advance_hpp_check(&dummy_hpp, ret))

			break;



		ret = scnprintf(dummy_hpp.buf, dummy_hpp.size, "  ");

		if (advance_hpp_check(&dummy_hpp, ret))

			break;

	}



	return ret;

}



static void hist_browser__show_headers(struct hist_browser *browser)

static void hist_browser__show_headers(struct hist_browser *browser)

{

{

	char headers[1024];



	hists__scnprintf_headers(headers, sizeof(headers), browser->hists);

	ui_browser__gotorc(&browser->b, 0, 0);

	ui_browser__gotorc(&browser->b, 0, 0);

	ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);

	ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);

	slsmg_write_nstring(" ", browser->b.width + 1);

	slsmg_write_nstring(headers, browser->b.width + 1);

}

}





static void ui_browser__hists_init_top(struct ui_browser *browser)

static void ui_browser__hists_init_top(struct ui_browser *browser)
@@ -1241,7 +1284,7 @@ static struct hist_browser *hist_browser__new(struct hists *hists) 
		browser->b.refresh_dimensions = hist_browser__refresh_dimensions;

		browser->b.refresh_dimensions = hist_browser__refresh_dimensions;

		browser->b.seek = ui_browser__hists_seek;

		browser->b.seek = ui_browser__hists_seek;

		browser->b.use_navkeypressed = true;

		browser->b.use_navkeypressed = true;

		browser->show_headers = false;

		browser->show_headers = true;

	}

	}





	return browser;

	return browser;