LXR linux/tools/perf/util/iostat.h

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/*
   3 * perf iostat
   4 *
   5 * Copyright (C) 2020, Intel Corporation
   6 *
   7 * Authors: Alexander Antonov <alexander.antonov@linux.intel.com>
   8 */
   9
  10#ifndef _IOSTAT_H
  11#define _IOSTAT_H
  12
  13#include <subcmd/parse-options.h>
  14#include "util/stat.h"
  15#include "util/parse-events.h"
  16#include "util/evlist.h"
  17
  18struct option;
  19struct perf_stat_config;
  20struct evlist;
  21struct timespec;
  22
  23enum iostat_mode_t {
  24        IOSTAT_NONE             = -1,
  25        IOSTAT_RUN              = 0,
  26        IOSTAT_LIST             = 1
  27};
  28
  29extern enum iostat_mode_t iostat_mode;
  30
  31typedef void (*iostat_print_counter_t)(struct perf_stat_config *, struct evsel *, char *);
  32
  33int iostat_prepare(struct evlist *evlist, struct perf_stat_config *config);
  34int iostat_parse(const struct option *opt, const char *str,
  35                 int unset __maybe_unused);
  36void iostat_list(struct evlist *evlist, struct perf_stat_config *config);
  37void iostat_release(struct evlist *evlist);
  38void iostat_prefix(struct evlist *evlist, struct perf_stat_config *config,
  39                   char *prefix, struct timespec *ts);
  40void iostat_print_header_prefix(struct perf_stat_config *config);
  41void iostat_print_metric(struct perf_stat_config *config, struct evsel *evsel,
  42                         struct perf_stat_output_ctx *out);
  43void iostat_print_counters(struct evlist *evlist,
  44                           struct perf_stat_config *config, struct timespec *ts,
  45                           char *prefix, iostat_print_counter_t print_cnt_cb);
  46
  47#endif /* _IOSTAT_H */
  48