openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

perf hists browser: Add support for showing columns header 

Open up space to show a one-line header text whenever 'H' is pressed,
hide it on another key press.

Follow up patch will format this line from the set of headers used.

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: Jiri Olsa <jolsa@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-m894d6qk30h3qofw4k8neq4q@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Arnaldo Carvalho de Melo 2014-06-14 15:44:52 +02:00 committed by Arnaldo Carvalho de Melo
parent 357cfff1c2
commit 025bf7ea0a
1 changed files with 40 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

42
tools/perf/ui/browsers/hists.c
View File

@ -26,6 +26,7 @@ struct hist_browser {
struct map_symbol *selection;
int print_seq;
bool show_dso;
bool show_headers;
float min_pcnt;
u64 nr_non_filtered_entries;
u64 nr_callchain_rows;
@ -56,6 +57,21 @@ static u32 hist_browser__nr_entries(struct hist_browser *hb)
return nr_entries + hb->nr_callchain_rows;
}
static void hist_browser__update_rows(struct hist_browser *hb)
{
struct ui_browser *browser = &hb->b;
u16 header_offset = hb->show_headers ? 1 : 0, index_row;
browser->rows = browser->height - header_offset;
/*
* Verify if we were at the last line and that line isn't
* visibe because we now show the header line(s).
*/
index_row = browser->index - browser->top_idx;
if (index_row >= browser->rows)
browser->index -= index_row - browser->rows + 1;
}
static void hist_browser__refresh_dimensions(struct ui_browser *browser)
{
struct hist_browser *hb = container_of(browser, struct hist_browser, b);
@ -69,11 +85,14 @@ static void hist_browser__refresh_dimensions(struct ui_browser *browser)
* changeset.
*/
ui_browser__refresh_dimensions(browser);
hist_browser__update_rows(hb);
}
static void hist_browser__gotorc(struct hist_browser *browser, int row, int column)
{
ui_browser__gotorc(&browser->b, row, column);
u16 header_offset = browser->show_headers ? 1 : 0;
ui_browser__gotorc(&browser->b, row + header_offset, column);
}
static void hist_browser__reset(struct hist_browser *browser)
@ -421,6 +440,10 @@ static int hist_browser__run(struct hist_browser *browser,
/* Expand the whole world. */
hist_browser__set_folding(browser, true);
break;
case 'H':
browser->show_headers = !browser->show_headers;
hist_browser__update_rows(browser);
break;
case K_ENTER:
if (hist_browser__toggle_fold(browser))
break;
@ -799,6 +822,13 @@ static int hist_browser__show_entry(struct hist_browser *browser,
return printed;
}
static void hist_browser__show_headers(struct hist_browser *browser)
{
ui_browser__gotorc(&browser->b, 0, 0);
ui_browser__set_color(&browser->b, HE_COLORSET_ROOT);
slsmg_write_nstring(" ", browser->b.width + 1);
}
static void ui_browser__hists_init_top(struct ui_browser *browser)
{
if (browser->top == NULL) {
@ -812,9 +842,15 @@ static void ui_browser__hists_init_top(struct ui_browser *browser)
static unsigned int hist_browser__refresh(struct ui_browser *browser)
{
unsigned row = 0;
u16 header_offset = 0;
struct rb_node *nd;
struct hist_browser *hb = container_of(browser, struct hist_browser, b);
if (hb->show_headers) {
hist_browser__show_headers(hb);
header_offset = 1;
}
ui_browser__hists_init_top(browser);
for (nd = browser->top; nd; nd = rb_next(nd)) {
@ -833,7 +869,7 @@ static unsigned int hist_browser__refresh(struct ui_browser *browser)
break;
}
return row;
return row + header_offset;
}
static struct rb_node *hists__filter_entries(struct rb_node *nd,
@ -1205,6 +1241,7 @@ 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;
}
return browser;
@ -1434,6 +1471,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
"d Zoom into current DSO\n" \
"E Expand all callchains\n" \
"F Toggle percentage of filtered entries\n" \
"H Display column headers\n" \
/* help messages are sorted by lexical order of the hotkey */
const char report_help[] = HIST_BROWSER_HELP_COMMON