LXR linux/tools/perf/ui/progress.c

   1// SPDX-License-Identifier: GPL-2.0
   2#include <linux/kernel.h>
   3#include "../cache.h"
   4#include "progress.h"
   5
   6static void null_progress__update(struct ui_progress *p __maybe_unused)
   7{
   8}
   9
  10static struct ui_progress_ops null_progress__ops =
  11{
  12        .update = null_progress__update,
  13};
  14
  15struct ui_progress_ops *ui_progress__ops = &null_progress__ops;
  16
  17void ui_progress__update(struct ui_progress *p, u64 adv)
  18{
  19        u64 last = p->curr;
  20
  21        p->curr += adv;
  22
  23        if (p->curr >= p->next) {
  24                u64 nr = DIV_ROUND_UP(p->curr - last, p->step);
  25
  26                p->next += nr * p->step;
  27                ui_progress__ops->update(p);
  28        }
  29}
  30
  31void ui_progress__init(struct ui_progress *p, u64 total, const char *title)
  32{
  33        p->curr = 0;
  34        p->next = p->step = total / 16 ?: 1;
  35        p->total = total;
  36        p->title = title;
  37
  38}
  39
  40void ui_progress__finish(void)
  41{
  42        if (ui_progress__ops->finish)
  43                ui_progress__ops->finish();
  44}
  45