[PATCH v6 19/25] perf hists browser: Support collapsing/expanding whole entries in hierarchy

Namhyung Kim
2016-02-16T14:11:16Z

The 'C' and 'E' keys are to collapse/expand all hist entries. Update
nr_hierarchy_entries properly in this case.

Acked-by: Pekka Enberg <penberg@kernel.org>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/ui/browsers/hists.c | 58 ++++++++++++++++++++++++++++++++++--------
1 file changed, 48 insertions(+), 10 deletions(-)

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index de1d6f0df8a7..857b9beb0aab 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -484,13 +484,38 @@ static int callchain__set_folding(struct rb_root *chain, bool unfold)
return n;
}

-static void hist_entry__set_folding(struct hist_entry *he, bool unfold)
+static int hierarchy_set_folding(struct hist_browser *hb, struct hist_entry *he,
+ bool unfold __maybe_unused)
+{
+ float percent;
+ struct rb_node *nd;
+ struct hist_entry *child;
+ int n = 0;
+
+ for (nd = rb_first(&he->hroot_out); nd; nd = rb_next(nd)) {
+ child = rb_entry(nd, struct hist_entry, rb_node);
+ percent = hist_entry__get_percent_limit(child);
+ if (!child->filtered && percent >= hb->min_pcnt)
+ n++;
+ }
+
+ return n;
+}
+
+static void hist_entry__set_folding(struct hist_entry *he,
+ struct hist_browser *hb, bool unfold)
{
hist_entry__init_have_children(he);
he->unfolded = unfold ? he->has_children : false;

if (he->has_children) {
- int n = callchain__set_folding(&he->sorted_chain, unfold);
+ int n;
+
+ if (he->leaf)
+ n = callchain__set_folding(&he->sorted_chain, unfold);
+ else
+ n = hierarchy_set_folding(hb, he, unfold);
+
he->nr_rows = unfold ? n : 0;
} else
he->nr_rows = 0;
@@ -500,19 +525,32 @@ static void
__hist_browser__set_folding(struct hist_browser *browser, bool unfold)
{
struct rb_node *nd;
- struct hists *hists = browser->hists;
+ struct hist_entry *he;
+ double percent;

- for (nd = rb_first(&hists->entries);
- (nd = hists__filter_entries(nd, browser->min_pcnt)) != NULL;
- nd = rb_next(nd)) {
- struct hist_entry *he = rb_entry(nd, struct hist_entry, rb_node);
- hist_entry__set_folding(he, unfold);
- browser->nr_callchain_rows += he->nr_rows;
+ nd = rb_first(&browser->hists->entries);
+ while (nd) {
+ he = rb_entry(nd, struct hist_entry, rb_node);
+
+ /* set folding state even if it's currently folded */
+ nd = __rb_hierarchy_next(nd, HMD_FORCE_CHILD);
+
+ hist_entry__set_folding(he, browser, unfold);
+
+ percent = hist_entry__get_percent_limit(he);
+ if (he->filtered || percent < browser->min_pcnt)
+ continue;
+
+ if (!he->depth || unfold)
+ browser->nr_hierarchy_entries++;
+ if (he->leaf)
+ browser->nr_callchain_rows += he->nr_rows;
}
}

static void hist_browser__set_folding(struct hist_browser *browser, bool unfold)
{
+ browser->nr_hierarchy_entries = 0;
browser->nr_callchain_rows = 0;
__hist_browser__set_folding(browser, unfold);

@@ -2131,7 +2169,7 @@ static void hist_browser__update_percent_limit(struct hist_browser *hb,

/* force to re-evaluate folding state of callchains */
he->init_have_children = false;
- hist_entry__set_folding(he, false);
+ hist_entry__set_folding(he, hb, false);

nd = rb_next(nd);
}
--
2.7.1