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>

1 files changed, 20 insertions, 0 deletions

diff --git a/tools/perf/ui/progress.c b/tools/perf/ui/progress.c
new file mode 100644
index 000000000000..f5e4d1b95c75
--- /dev/null
+++ b/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);
+}