perf ui: Introduce generic ui_progress helper

Make ui_progress functions generic so that UI frontend code will add its
callbacks.

Signed-off-by: Namhyung Kim <namhyung@kernel.org>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1352813436-14173-2-git-send-email-namhyung@kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

tools/perf/Makefile

@@ -423,6 +423,7 @@ LIB_OBJS += $(OUTPUT)util/vdso.o
 LIB_OBJS += $(OUTPUT)util/stat.o
 
 LIB_OBJS += $(OUTPUT)ui/helpline.o
+LIB_OBJS += $(OUTPUT)ui/progress.o
 LIB_OBJS += $(OUTPUT)ui/hist.o
 LIB_OBJS += $(OUTPUT)ui/stdio/hist.o
 

tools/perf/ui/gtk/util.c

@@ -111,14 +111,3 @@ struct perf_error_ops perf_gtk_eops = {
 	.warning	= perf_gtk__warning_statusbar,
 #endif
 };
-
-/*
- * FIXME: Functions below should be implemented properly.
- *        For now, just add stubs for NO_NEWT=1 build.
- */
-#ifndef NEWT_SUPPORT
-void ui_progress__update(u64 curr __maybe_unused, u64 total __maybe_unused,
-			 const char *title __maybe_unused)
-{
-}
-#endif

tools/perf/ui/progress.c

@@ -0,0 +1,20 @@
+#include "../cache.h"
+#include "progress.h"
+
+static void nop_progress_update(u64 curr __maybe_unused,
+				u64 total __maybe_unused,
+				const char *title __maybe_unused)
+{
+}
+
+static struct ui_progress default_progress_fns =
+{
+	.update		= nop_progress_update,
+};
+
+struct ui_progress *progress_fns = &default_progress_fns;
+
+void ui_progress__update(u64 curr, u64 total, const char *title)
+{
+	return progress_fns->update(curr, total, title);
+}

tools/perf/ui/progress.h

@@ -3,6 +3,14 @@
 
 #include <../types.h>
 
+struct ui_progress {
+	void (*update)(u64, u64, const char *);
+};
+
+extern struct ui_progress *progress_fns;
+
+void ui_progress__init(void);
+
 void ui_progress__update(u64 curr, u64 total, const char *title);
 
 #endif

tools/perf/ui/tui/progress.c

@@ -4,7 +4,7 @@
 #include "../ui.h"
 #include "../browser.h"
 
-void ui_progress__update(u64 curr, u64 total, const char *title)
+static void tui_progress__update(u64 curr, u64 total, const char *title)
 {
 	int bar, y;
 	/*
@@ -30,3 +30,13 @@ void ui_progress__update(u64 curr, u64 total, const char *title)
 	SLsmg_refresh();
 	pthread_mutex_unlock(&ui__lock);
 }
+
+static struct ui_progress tui_progress_fns =
+{
+	.update		= tui_progress__update,
+};
+
+void ui_progress__init(void)
+{
+	progress_fns = &tui_progress_fns;
+}

tools/perf/ui/tui/setup.c

@@ -118,6 +118,7 @@ int ui__init(void)
 	newtSetSuspendCallback(newt_suspend, NULL);
 	ui_helpline__init();
 	ui_browser__init();
+	ui_progress__init();
 
 	signal(SIGSEGV, ui__signal);
 	signal(SIGFPE, ui__signal);