Commit-ID: 81a888fea2cfd727052926e95510c11981d9b1c2
Gitweb: http://git.kernel.org/tip/81a888fea2cfd727052926e95510c11981d9b1c2
Author: Jiri Olsa <jolsa@xxxxxxxxxx>
AuthorDate: Sat, 14 Jun 2014 15:44:52 +0200
Committer: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
CommitDate: Mon, 7 Jul 2014 12:36:55 -0300
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: Jiri Olsa <jolsa@xxxxxxxxxx>
Cc: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
Cc: Corey Ashford <cjashfor@xxxxxxxxxxxxxxxxxx>
Cc: David Ahern <dsahern@xxxxxxxxx>
Cc: Frederic Weisbecker <fweisbec@xxxxxxxxx>
Cc: Ingo Molnar <mingo@xxxxxxxxxx>
Cc: Namhyung Kim <namhyung@xxxxxxxxxx>
Cc: Paul Mackerras <paulus@xxxxxxxxx>
Cc: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
Link: http://lkml.kernel.org/n/tip-w9pcqpum5erza2a05ysvollz@xxxxxxxxxxxxxx
Signed-off-by: Arnaldo Carvalho de Melo <acme@xxxxxxxxxx>
---
tools/perf/ui/browsers/hists.c | 47 ++++++++++++++++++++++++++++++++++++++++--
1 file changed, 45 insertions(+), 2 deletions(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 2be71bf..5fa2e18 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -822,11 +822,54 @@ static int hist_browser__show_entry(struct hist_browser *browser,
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)
{
+ char headers[1024];
+
+ hists__scnprintf_headers(headers, sizeof(headers), browser->hists);
ui_browser__gotorc(&browser->b, 0, 0);
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)
@@ -1241,7 +1284,7 @@ static struct hist_browser *hist_browser__new(struct hists *hists)
browser->b.refresh_dimensions = hist_browser__refresh_dimensions;
browser->b.seek = ui_browser__hists_seek;
browser->b.use_navkeypressed = true;
- browser->show_headers = false;
+ browser->show_headers = true;
}
return browser;
--
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