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Subject[PATCH 2/5] perf tools: Refactor some functions
Date
From: Namhyung Kim <namhyung.kim@lge.com>

Rename functions for inconsistency and move callchain print function
into hist_entry__fprintf().

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
---
tools/perf/ui/browsers/hists.c | 4 +--
tools/perf/ui/hist.c | 65 +++++++++++++++++++++-------------------
tools/perf/util/hist.h | 4 +--
3 files changed, 38 insertions(+), 35 deletions(-)
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 482f0517b61e..c58f9bb15038 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -576,7 +576,7 @@ static int hist_browser__show_entry(struct hist_browser *browser,
}

if (row_offset == 0) {
- hist_entry__snprintf(entry, s, sizeof(s), browser->hists);
+ hist_entry__sort_snprintf(entry, s, sizeof(s), browser->hists);
percent = (entry->period * 100.0) / browser->hists->stats.total_period;

ui_browser__set_percent_color(&browser->b, percent, current_entry);
@@ -920,7 +920,7 @@ static int hist_browser__fprintf_entry(struct hist_browser *browser,
if (symbol_conf.use_callchain)
folded_sign = hist_entry__folded(he);

- hist_entry__snprintf(he, s, sizeof(s), browser->hists);
+ hist_entry__sort_snprintf(he, s, sizeof(s), browser->hists);
percent = (he->period * 100.0) / browser->hists->stats.total_period;

if (symbol_conf.use_callchain)
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index e87e4f72664c..c0649f5dc9b4 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -262,9 +262,9 @@ static size_t callchain__fprintf_flat(FILE *fp, struct rb_root *self,
return ret;
}

-static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
- u64 total_samples, int left_margin,
- FILE *fp)
+static size_t callchain__fprintf(struct hist_entry *he,
+ u64 total_samples, int left_margin,
+ FILE *fp)
{
switch (callchain_param.mode) {
case CHAIN_GRAPH_REL:
@@ -287,10 +287,10 @@ static size_t hist_entry_callchain__fprintf(struct hist_entry *he,
return 0;
}

-static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
- size_t size, struct hists *pair_hists,
- bool show_displacement, long displacement,
- bool color, u64 total_period)
+static int hist_entry__period_snprintf(struct hist_entry *he, char *s,
+ size_t size, struct hists *pair_hists,
+ bool show_displacement, long displacement,
+ bool color, u64 total_period)
{
u64 period, total, period_sys, period_us, period_guest_sys, period_guest_us;
u64 nr_events;
@@ -400,8 +400,8 @@ static int hist_entry__pcnt_snprintf(struct hist_entry *he, char *s,
return ret;
}

-int hist_entry__snprintf(struct hist_entry *he, char *s, size_t size,
- struct hists *hists)
+int hist_entry__sort_snprintf(struct hist_entry *he, char *s, size_t size,
+ struct hists *hists)
{
const char *sep = symbol_conf.field_sep;
struct sort_entry *se;
@@ -419,25 +419,7 @@ int hist_entry__snprintf(struct hist_entry *he, char *s, size_t size,
return ret;
}

-static int hist_entry__fprintf(struct hist_entry *he, size_t size,
- struct hists *hists, struct hists *pair_hists,
- bool show_displacement, long displacement,
- u64 total_period, FILE *fp)
-{
- char bf[512];
- int ret;
-
- if (size == 0 || size > sizeof(bf))
- size = sizeof(bf);
-
- ret = hist_entry__pcnt_snprintf(he, bf, size, pair_hists,
- show_displacement, displacement,
- true, total_period);
- hist_entry__snprintf(he, bf + ret, size - ret, hists);
- return fprintf(fp, "%s\n", bf);
-}
-
-static size_t hist_entry__fprintf_callchain(struct hist_entry *he,
+static size_t hist_entry__callchain_fprintf(struct hist_entry *he,
struct hists *hists,
u64 total_period, FILE *fp)
{
@@ -450,7 +432,30 @@ static size_t hist_entry__fprintf_callchain(struct hist_entry *he,
left_margin -= thread__comm_len(he->thread);
}

- return hist_entry_callchain__fprintf(he, total_period, left_margin, fp);
+ return callchain__fprintf(he, total_period, left_margin, fp);
+}
+
+static int hist_entry__fprintf(struct hist_entry *he, size_t size,
+ struct hists *hists, struct hists *pair_hists,
+ bool show_displacement, long displacement,
+ u64 total_period, FILE *fp)
+{
+ char bf[512];
+ int ret;
+
+ if (size == 0 || size > sizeof(bf))
+ size = sizeof(bf);
+
+ ret = hist_entry__period_snprintf(he, bf, size, pair_hists,
+ show_displacement, displacement,
+ true, total_period);
+ hist_entry__sort_snprintf(he, bf + ret, size - ret, hists);
+ ret = fprintf(fp, "%s\n", bf);
+
+ if (symbol_conf.use_callchain)
+ ret += hist_entry__callchain_fprintf(he, hists,
+ total_period, fp);
+ return ret;
}

size_t hists__fprintf(struct hists *hists, struct hists *pair,
@@ -604,8 +609,6 @@ print_entries:
ret += hist_entry__fprintf(h, max_cols, hists, pair, show_displacement,
displacement, total_period, fp);

- if (symbol_conf.use_callchain)
- ret += hist_entry__fprintf_callchain(h, hists, total_period, fp);
if (max_rows && ++nr_rows >= max_rows)
goto out;

diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index 69fab7d9abcd..2e650ffb7d23 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -75,8 +75,8 @@ struct hist_entry *__hists__add_entry(struct hists *self,
struct symbol *parent, u64 period);
int64_t hist_entry__cmp(struct hist_entry *left, struct hist_entry *right);
int64_t hist_entry__collapse(struct hist_entry *left, struct hist_entry *right);
-int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
- struct hists *hists);
+int hist_entry__sort_snprintf(struct hist_entry *self, char *bf, size_t size,
+ struct hists *hists);
void hist_entry__free(struct hist_entry *);

struct hist_entry *__hists__add_branch_entry(struct hists *self,
--
1.7.9.2


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