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
   6 static void null_progress__update(struct ui_progress *p __maybe_unused)
   7 {
   8 }
   9
  10 static struct ui_progress_ops null_progress__ops =
  11 {
  12         .update = null_progress__update,
  13 };
  14
  15 struct ui_progress_ops *ui_progress__ops = &null_progress__ops;
  16
  17 void 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
  31 void __ui_progress__init(struct ui_progress *p, u64 total,
  32                          const char *title, bool size)
  33 {
  34         p->curr = 0;
  35         p->next = p->step = total / 16 ?: 1;
  36         p->total = total;
  37         p->title = title;
  38         p->size  = size;
  39
  40         if (ui_progress__ops->init)
  41                 ui_progress__ops->init(p);
  42 }
  43
  44 void ui_progress__finish(void)
  45 {
  46         if (ui_progress__ops->finish)
  47                 ui_progress__ops->finish();
  48 }