[PATCH 3/5] perf tools tui: Display multiple header lines

Jiri Olsa
2016-08-07T15:29:13Z

Display multiple header lines in TUI browser, if it's
configured within struct perf_hpp_list::nr_header_lines.

Link: http://lkml.kernel.org/n/tip-g41e9c3nrex4vz9vfn7wbb1w@git.kernel.org
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
---
tools/perf/ui/browsers/hists.c | 25 +++++++++++++++++--------
1 file changed, 17 insertions(+), 8 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 303ed62a8f53..4a7aac8ed5ee 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -1502,7 +1502,9 @@ static int advance_hpp_check(struct perf_hpp *hpp, int inc)
return hpp->size <= 0;
}

-static int hists_browser__scnprintf_headers(struct hist_browser *browser, char *buf, size_t size)
+static int
+hists_browser__scnprintf_headers(struct hist_browser *browser, char *buf,
+ size_t size, int line)
{
struct hists *hists = browser->hists;
struct perf_hpp dummy_hpp = {
@@ -1523,7 +1525,7 @@ static int hists_browser__scnprintf_headers(struct hist_browser *browser, char *
if (perf_hpp__should_skip(fmt, hists) || column++ < browser->b.horiz_scroll)
continue;

- ret = fmt->header(fmt, &dummy_hpp, hists, 0);
+ ret = fmt->header(fmt, &dummy_hpp, hists, line);
if (advance_hpp_check(&dummy_hpp, ret))
break;

@@ -1628,14 +1630,21 @@ static void hists_browser__hierarchy_headers(struct hist_browser *browser)

static void hists_browser__headers(struct hist_browser *browser)
{
- char headers[1024];
+ struct hists *hists = browser->hists;
+ struct perf_hpp_list *hpp_list = hists->hpp_list;

- hists_browser__scnprintf_headers(browser, headers,
- sizeof(headers));
+ int line;

- ui_browser__gotorc(&browser->b, 0, 0);
- ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
- ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
+ for (line = 0; line < hpp_list->nr_header_lines; line++) {
+ char headers[1024];
+
+ hists_browser__scnprintf_headers(browser, headers,
+ sizeof(headers), line);
+
+ ui_browser__gotorc(&browser->b, line, 0);
+ ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
+ ui_browser__write_nstring(&browser->b, headers, browser->b.width + 1);
+ }
}

static void hist_browser__show_headers(struct hist_browser *browser)
--
2.4.11