perf tools: Introduce struct hist_browser_timer

Currently various hist browser functions receive 3 arguments for
refreshing histogram but only used from a few places.  Also it's only
for perf top command so that it can be NULL for other (and probably
most) cases.  Pack them into a struct in order to reduce number of those
unused arguments.

This is a mechanical change and does not intend a functional change.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Tested-by: David Ahern <dsahern@gmail.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Irina Tirdea <irina.tirdea@gmail.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1351835406-15208-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

3 files changed, 32 insertions, 42 deletions

diff --git a/tools/perf/ui/browsers/annotate.c b/tools/perf/ui/browsers/annotate.c
index 28f8aab73aee..3eff17f703f3 100644
--- a/tools/perf/ui/browsers/annotate.c
+++ b/tools/perf/ui/browsers/annotate.c
@@ -386,9 +386,8 @@ static void annotate_browser__init_asm_mode(struct annotate_browser *browser)
         browser->b.nr_entries = browser->nr_asm_entries;
 }
 
-static bool annotate_browser__callq(struct annotate_browser *browser,
-                                    int evidx, void (*timer)(void *arg),
-                                    void *arg, int delay_secs)
+static bool annotate_browser__callq(struct annotate_browser *browser, int evidx,
+                                    struct hist_browser_timer *hbt)
 {
         struct map_symbol *ms = browser->b.priv;
         struct disasm_line *dl = browser->selection;
@@ -418,7 +417,7 @@ static bool annotate_browser__callq(struct annotate_browser *browser,
         }
 
         pthread_mutex_unlock(&notes->lock);
-        symbol__tui_annotate(target, ms->map, evidx, timer, arg, delay_secs);
+        symbol__tui_annotate(target, ms->map, evidx, hbt);
         ui_browser__show_title(&browser->b, sym->name);
         return true;
 }
@@ -602,13 +601,13 @@ static void annotate_browser__update_addr_width(struct annotate_browser *browser
 }
 
 static int annotate_browser__run(struct annotate_browser *browser, int evidx,
-                                 void(*timer)(void *arg),
-                                 void *arg, int delay_secs)
+                                 struct hist_browser_timer *hbt)
 {
         struct rb_node *nd = NULL;
         struct map_symbol *ms = browser->b.priv;
         struct symbol *sym = ms->sym;
         const char *help = "Press 'h' for help on key bindings";
+        int delay_secs = hbt ? hbt->refresh : 0;
         int key;
 
         if (ui_browser__show(&browser->b, sym->name, help) < 0)
@@ -639,8 +638,8 @@ static int annotate_browser__run(struct annotate_browser *browser, int evidx,
 
                 switch (key) {
                 case K_TIMER:
-                        if (timer != NULL)
-                                timer(arg);
+                        if (hbt)
+                                hbt->timer(hbt->arg);
 
                         if (delay_secs != 0)
                                 symbol__annotate_decay_histogram(sym, evidx);
@@ -740,7 +739,7 @@ show_help:
                                         goto show_sup_ins;
                                 goto out;
                         } else if (!(annotate_browser__jump(browser) ||
-                                     annotate_browser__callq(browser, evidx, timer, arg, delay_secs))) {
+                                     annotate_browser__callq(browser, evidx, hbt))) {
 show_sup_ins:
                                 ui_helpline__puts("Actions are only available for 'callq', 'retq' & jump instructions.");
                         }
@@ -763,10 +762,9 @@ out:
 }
 
 int hist_entry__tui_annotate(struct hist_entry *he, int evidx,
-                             void(*timer)(void *arg), void *arg, int delay_secs)
+                             struct hist_browser_timer *hbt)
 {
-        return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx,
-                                    timer, arg, delay_secs);
+        return symbol__tui_annotate(he->ms.sym, he->ms.map, evidx, hbt);
 }
 
 static void annotate_browser__mark_jump_targets(struct annotate_browser *browser,
@@ -816,8 +814,7 @@ static inline int width_jumps(int n)
 }
 
 int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
-                         void(*timer)(void *arg), void *arg,
-                         int delay_secs)
+                         struct hist_browser_timer *hbt)
 {
         struct disasm_line *pos, *n;
         struct annotation *notes;
@@ -899,7 +896,7 @@ int symbol__tui_annotate(struct symbol *sym, struct map *map, int evidx,
 
         annotate_browser__update_addr_width(&browser);
 
-        ret = annotate_browser__run(&browser, evidx, timer, arg, delay_secs);
+        ret = annotate_browser__run(&browser, evidx, hbt);
         list_for_each_entry_safe(pos, n, &notes->src->source, node) {
                 list_del(&pos->node);
                 disasm_line__free(pos);
diff --git a/tools/perf/ui/browsers/hists.c b/tools/perf/ui/browsers/hists.c
index 082078ae9a6b..c7d32edb8057 100644
--- a/tools/perf/ui/browsers/hists.c
+++ b/tools/perf/ui/browsers/hists.c
@@ -310,10 +310,11 @@ static void ui_browser__warn_lost_events(struct ui_browser *browser)
 }
 
 static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
-                             void(*timer)(void *arg), void *arg, int delay_secs)
+                             struct hist_browser_timer *hbt)
 {
         int key;
         char title[160];
+        int delay_secs = hbt ? hbt->refresh : 0;
 
         browser->b.entries = &browser->hists->entries;
         browser->b.nr_entries = browser->hists->nr_entries;
@@ -330,7 +331,7 @@ static int hist_browser__run(struct hist_browser *browser, const char *ev_name,
 
                 switch (key) {
                 case K_TIMER:
-                        timer(arg);
+                        hbt->timer(hbt->arg);
                         ui_browser__update_nr_entries(&browser->b, browser->hists->nr_entries);
 
                         if (browser->hists->stats.nr_lost_warned !=
@@ -1136,8 +1137,7 @@ static inline bool is_report_browser(void *timer)
 static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
                                     const char *helpline, const char *ev_name,
                                     bool left_exits,
-                                    void(*timer)(void *arg), void *arg,
-                                    int delay_secs)
+                                    struct hist_browser_timer *hbt)
 {
         struct hists *hists = &evsel->hists;
         struct hist_browser *browser = hist_browser__new(hists);
@@ -1148,6 +1148,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
         int key = -1;
         char buf[64];
         char script_opt[64];
+        int delay_secs = hbt ? hbt->refresh : 0;
 
         if (browser == NULL)
                 return -1;
@@ -1170,7 +1171,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
 
                 nr_options = 0;
 
-                key = hist_browser__run(browser, ev_name, timer, arg, delay_secs);
+                key = hist_browser__run(browser, ev_name, hbt);
 
                 if (browser->he_selection != NULL) {
                         thread = hist_browser__selected_thread(browser);
@@ -1220,7 +1221,7 @@ static int perf_evsel__hists_browse(struct perf_evsel *evsel, int nr_events,
                         }
                         continue;
                 case 'r':
-                        if (is_report_browser(timer))
+                        if (is_report_browser(hbt))
                                 goto do_scripts;
                         continue;
                 case K_F1:
@@ -1388,8 +1389,7 @@ do_annotate:
                          * Don't let this be freed, say, by hists__decay_entry.
                          */
                         he->used = true;
-                        err = hist_entry__tui_annotate(he, evsel->idx,
-                                                       timer, arg, delay_secs);
+                        err = hist_entry__tui_annotate(he, evsel->idx, hbt);
                         he->used = false;
                         /*
                          * offer option to annotate the other branch source or target
@@ -1512,11 +1512,12 @@ static void perf_evsel_menu__write(struct ui_browser *browser,
 
 static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
                                 int nr_events, const char *help,
-                                void(*timer)(void *arg), void *arg, int delay_secs)
+                                struct hist_browser_timer *hbt)
 {
         struct perf_evlist *evlist = menu->b.priv;
         struct perf_evsel *pos;
         const char *ev_name, *title = "Available samples";
+        int delay_secs = hbt ? hbt->refresh : 0;
         int key;
 
         if (ui_browser__show(&menu->b, title,
@@ -1528,7 +1529,7 @@ static int perf_evsel_menu__run(struct perf_evsel_menu *menu,
 
                 switch (key) {
                 case K_TIMER:
-                        timer(arg);
+                        hbt->timer(hbt->arg);
 
                         if (!menu->lost_events_warned && menu->lost_events) {
                                 ui_browser__warn_lost_events(&menu->b);
@@ -1546,12 +1547,11 @@ browse_hists:
                          * Give the calling tool a chance to populate the non
                          * default evsel resorted hists tree.
                          */
-                        if (timer)
-                                timer(arg);
+                        if (hbt)
+                                hbt->timer(hbt->arg);
                         ev_name = perf_evsel__name(pos);
                         key = perf_evsel__hists_browse(pos, nr_events, help,
-                                                       ev_name, true, timer,
-                                                       arg, delay_secs);
+                                                       ev_name, true, hbt);
                         ui_browser__show_title(&menu->b, title);
                         switch (key) {
                         case K_TAB:
@@ -1599,8 +1599,7 @@ out:
 
 static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
                                            const char *help,
-                                           void(*timer)(void *arg), void *arg,
-                                           int delay_secs)
+                                           struct hist_browser_timer *hbt)
 {
         struct perf_evsel *pos;
         struct perf_evsel_menu menu = {
@@ -1624,23 +1623,19 @@ static int __perf_evlist__tui_browse_hists(struct perf_evlist *evlist,
                         menu.b.width = line_len;
         }
 
-        return perf_evsel_menu__run(&menu, evlist->nr_entries, help, timer,
-                                    arg, delay_secs);
+        return perf_evsel_menu__run(&menu, evlist->nr_entries, help, hbt);
 }
 
 int perf_evlist__tui_browse_hists(struct perf_evlist *evlist, const char *help,
-                                  void(*timer)(void *arg), void *arg,
-                                  int delay_secs)
+                                  struct hist_browser_timer *hbt)
 {
         if (evlist->nr_entries == 1) {
                 struct perf_evsel *first = list_entry(evlist->entries.next,
                                                       struct perf_evsel, node);
                 const char *ev_name = perf_evsel__name(first);
                 return perf_evsel__hists_browse(first, evlist->nr_entries, help,
-                                                ev_name, false, timer, arg,
-                                                delay_secs);
+                                                ev_name, false, hbt);
         }
 
-        return __perf_evlist__tui_browse_hists(evlist, help,
-                                               timer, arg, delay_secs);
+        return __perf_evlist__tui_browse_hists(evlist, help, hbt);
 }
diff --git a/tools/perf/ui/gtk/browser.c b/tools/perf/ui/gtk/browser.c
index 4125c6284114..253b6219a39e 100644
--- a/tools/perf/ui/gtk/browser.c
+++ b/tools/perf/ui/gtk/browser.c
@@ -237,9 +237,7 @@ static GtkWidget *perf_gtk__setup_statusbar(void)
 
 int perf_evlist__gtk_browse_hists(struct perf_evlist *evlist,
                                   const char *help,
-                                  void (*timer) (void *arg)__maybe_unused,
-                                  void *arg __maybe_unused,
-                                  int delay_secs __maybe_unused)
+                                  struct hist_browser_timer *hbt __maybe_unused)
 {
         struct perf_evsel *pos;
         GtkWidget *vbox;