perf ui/tui: Reuse generic __hpp__fmt() code

The __hpp__color_fmt used in the TUI code can be replace by the generic
code with small change in print_fn callback.  And it also needs to move
callback function to the generic __hpp__fmt().

No functional changes intended.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1393809254-4480-5-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

4 files changed, 63 insertions, 91 deletions

diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index b720b92eba6e..7ec871af3f6f 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -587,95 +587,52 @@ struct hpp_arg {
         bool current_entry;
 };
 
-static int __hpp__color_callchain(struct hpp_arg *arg)
+static int __hpp__overhead_callback(struct perf_hpp *hpp, bool front)
 {
-        if (!symbol_conf.use_callchain)
-                return 0;
-
-        slsmg_printf("%c ", arg->folded_sign);
-        return 2;
-}
-
-static int __hpp__color_fmt(struct perf_hpp *hpp, struct hist_entry *he,
-                            u64 (*get_field)(struct hist_entry *),
-                            int (*callchain_cb)(struct hpp_arg *))
-{
-        int ret = 0;
-        double percent = 0.0;
-        struct hists *hists = he->hists;
         struct hpp_arg *arg = hpp->ptr;
 
-        if (hists->stats.total_period)
-                percent = 100.0 * get_field(he) / hists->stats.total_period;
-
-        ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
-
-        if (callchain_cb)
-                ret += callchain_cb(arg);
-
-        ret += scnprintf(hpp->buf, hpp->size, "%6.2f%%", percent);
-        slsmg_printf("%s", hpp->buf);
-
-        if (symbol_conf.event_group) {
-                int prev_idx, idx_delta;
-                struct perf_evsel *evsel = hists_to_evsel(hists);
-                struct hist_entry *pair;
-                int nr_members = evsel->nr_members;
-
-                if (nr_members <= 1)
-                        goto out;
+        if (arg->current_entry && arg->b->navkeypressed)
+                ui_browser__set_color(arg->b, HE_COLORSET_SELECTED);
+        else
+                ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);
 
-                prev_idx = perf_evsel__group_idx(evsel);
+        if (front) {
+                if (!symbol_conf.use_callchain)
+                        return 0;
 
-                list_for_each_entry(pair, &he->pairs.head, pairs.node) {
-                        u64 period = get_field(pair);
-                        u64 total = pair->hists->stats.total_period;
+                slsmg_printf("%c ", arg->folded_sign);
+                return 2;
+        }
 
-                        if (!total)
-                                continue;
+        return 0;
+}
 
-                        evsel = hists_to_evsel(pair->hists);
-                        idx_delta = perf_evsel__group_idx(evsel) - prev_idx - 1;
+static int __hpp__color_callback(struct perf_hpp *hpp, bool front __maybe_unused)
+{
+        struct hpp_arg *arg = hpp->ptr;
 
-                        while (idx_delta--) {
-                                /*
-                                 * zero-fill group members in the middle which
-                                 * have no sample
-                                 */
-                                ui_browser__set_percent_color(arg->b, 0.0,
-                                                        arg->current_entry);
-                                ret += scnprintf(hpp->buf, hpp->size,
-                                                 " %6.2f%%", 0.0);
-                                slsmg_printf("%s", hpp->buf);
-                        }
+        if (!arg->current_entry || !arg->b->navkeypressed)
+                ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);
+        return 0;
+}
 
-                        percent = 100.0 * period / total;
-                        ui_browser__set_percent_color(arg->b, percent,
-                                                      arg->current_entry);
-                        ret += scnprintf(hpp->buf, hpp->size,
-                                         " %6.2f%%", percent);
-                        slsmg_printf("%s", hpp->buf);
+static int __hpp__slsmg_color_printf(struct perf_hpp *hpp, const char *fmt, ...)
+{
+        struct hpp_arg *arg = hpp->ptr;
+        int ret;
+        va_list args;
+        double percent;
 
-                        prev_idx = perf_evsel__group_idx(evsel);
-                }
+        va_start(args, fmt);
+        percent = va_arg(args, double);
+        va_end(args);
 
-                idx_delta = nr_members - prev_idx - 1;
+        ui_browser__set_percent_color(arg->b, percent, arg->current_entry);
 
-                while (idx_delta--) {
-                        /*
-                         * zero-fill group members at last which have no sample
-                         */
-                        ui_browser__set_percent_color(arg->b, 0.0,
-                                                      arg->current_entry);
-                        ret += scnprintf(hpp->buf, hpp->size,
-                                         " %6.2f%%", 0.0);
-                        slsmg_printf("%s", hpp->buf);
-                }
-        }
-out:
-        if (!arg->current_entry || !arg->b->navkeypressed)
-                ui_browser__set_color(arg->b, HE_COLORSET_NORMAL);
+        ret = scnprintf(hpp->buf, hpp->size, fmt, percent);
+        slsmg_printf("%s", hpp->buf);
 
+        advance_hpp(hpp, ret);
         return ret;
 }
 
@@ -690,14 +647,15 @@ hist_browser__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,\
                                 struct perf_hpp *hpp,                   \
                                 struct hist_entry *he)                  \
 {                                                                       \
-        return __hpp__color_fmt(hpp, he, __hpp_get_##_field, _cb);      \
+        return __hpp__fmt(hpp, he, __hpp_get_##_field, _cb, " %6.2f%%", \
+                          __hpp__slsmg_color_printf, true);             \
 }
 
-__HPP_COLOR_PERCENT_FN(overhead, period, __hpp__color_callchain)
-__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys, NULL)
-__HPP_COLOR_PERCENT_FN(overhead_us, period_us, NULL)
-__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys, NULL)
-__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us, NULL)
+__HPP_COLOR_PERCENT_FN(overhead, period, __hpp__overhead_callback)
+__HPP_COLOR_PERCENT_FN(overhead_sys, period_sys, __hpp__color_callback)
+__HPP_COLOR_PERCENT_FN(overhead_us, period_us, __hpp__color_callback)
+__HPP_COLOR_PERCENT_FN(overhead_guest_sys, period_guest_sys, __hpp__color_callback)
+__HPP_COLOR_PERCENT_FN(overhead_guest_us, period_guest_us, __hpp__color_callback)
 
 #undef __HPP_COLOR_PERCENT_FN
 
diff --git a/tools/perf/ui/gtk/hists.c b/tools/perf/ui/gtk/hists.c
index 430fd555b161..7912dab6e5fb 100644
--- a/tools/perf/ui/gtk/hists.c
+++ b/tools/perf/ui/gtk/hists.c
@@ -43,7 +43,7 @@ static int perf_gtk__hpp_color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,
                                        struct perf_hpp *hpp,                    \
                                        struct hist_entry *he)                   \
 {                                                                               \
-        return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",                 \
+        return __hpp__fmt(hpp, he, he_get_##_field, NULL, " %6.2f%%",           \
                           __percent_color_snprintf, true);                      \
 }
 
diff --git a/tools/perf/ui/hist.c b/tools/perf/ui/hist.c
index 0c427e5d37c7..ac39313a3f0c 100644
--- a/tools/perf/ui/hist.c
+++ b/tools/perf/ui/hist.c
@@ -16,15 +16,20 @@
 })
 
 int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
-               u64 (*get_field)(struct hist_entry *),
+               hpp_field_fn get_field, hpp_callback_fn callback,
                const char *fmt, hpp_snprint_fn print_fn, bool fmt_percent)
 {
-        int ret;
+        int ret = 0;
         struct hists *hists = he->hists;
         struct perf_evsel *evsel = hists_to_evsel(hists);
         char *buf = hpp->buf;
         size_t size = hpp->size;
 
+        if (callback) {
+                ret = callback(hpp, true);
+                advance_hpp(hpp, ret);
+        }
+
         if (fmt_percent) {
                 double percent = 0.0;
 
@@ -32,9 +37,9 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
                         percent = 100.0 * get_field(he) /
                                   hists->stats.total_period;
 
-                ret = hpp__call_print_fn(hpp, print_fn, fmt, percent);
+                ret += hpp__call_print_fn(hpp, print_fn, fmt, percent);
         } else
-                ret = hpp__call_print_fn(hpp, print_fn, fmt, get_field(he));
+                ret += hpp__call_print_fn(hpp, print_fn, fmt, get_field(he));
 
         if (perf_evsel__is_group_event(evsel)) {
                 int prev_idx, idx_delta;
@@ -94,6 +99,13 @@ int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
                 }
         }
 
+        if (callback) {
+                int __ret = callback(hpp, false);
+
+                advance_hpp(hpp, __ret);
+                ret += __ret;
+        }
+
         /*
          * Restore original buf and size as it's where caller expects
          * the result will be saved.
@@ -169,7 +181,7 @@ static u64 he_get_##_field(struct hist_entry *he)				\
 static int hpp__color_##_type(struct perf_hpp_fmt *fmt __maybe_unused,          \
                               struct perf_hpp *hpp, struct hist_entry *he)      \
 {                                                                               \
-        return __hpp__fmt(hpp, he, he_get_##_field, " %6.2f%%",                 \
+        return __hpp__fmt(hpp, he, he_get_##_field, NULL, " %6.2f%%",           \
                           hpp_color_scnprintf, true);                           \
 }
 
@@ -178,7 +190,7 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,		\
                               struct perf_hpp *hpp, struct hist_entry *he)      \
 {                                                                               \
         const char *fmt = symbol_conf.field_sep ? " %.2f" : " %6.2f%%";         \
-        return __hpp__fmt(hpp, he, he_get_##_field, fmt,                        \
+        return __hpp__fmt(hpp, he, he_get_##_field, NULL, fmt,                  \
                           hpp_entry_scnprintf, true);                           \
 }
 
@@ -192,7 +204,7 @@ static int hpp__entry_##_type(struct perf_hpp_fmt *_fmt __maybe_unused,		\
                               struct perf_hpp *hpp, struct hist_entry *he)      \
 {                                                                               \
         const char *fmt = symbol_conf.field_sep ? " %"PRIu64 : " %11"PRIu64;    \
-        return __hpp__fmt(hpp, he, he_get_raw_##_field, fmt,                    \
+        return __hpp__fmt(hpp, he, he_get_raw_##_field, NULL, fmt,              \
                           hpp_entry_scnprintf, false);                          \
 }
 
diff --git a/tools/perf/util/hist.h b/tools/perf/util/hist.h
index d51ed9898229..9e1cada45bb8 100644
--- a/tools/perf/util/hist.h
+++ b/tools/perf/util/hist.h
@@ -166,10 +166,12 @@ void perf_hpp__init(void);
 void perf_hpp__column_register(struct perf_hpp_fmt *format);
 void perf_hpp__column_enable(unsigned col);
 
+typedef u64 (*hpp_field_fn)(struct hist_entry *he);
+typedef int (*hpp_callback_fn)(struct perf_hpp *hpp, bool front);
 typedef int (*hpp_snprint_fn)(struct perf_hpp *hpp, const char *fmt, ...);
 
 int __hpp__fmt(struct perf_hpp *hpp, struct hist_entry *he,
-               u64 (*get_field)(struct hist_entry *),
+               hpp_field_fn get_field, hpp_callback_fn callback,
                const char *fmt, hpp_snprint_fn print_fn, bool fmt_percent);
 
 static inline void advance_hpp(struct perf_hpp *hpp, int inc)