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
  18 struct option;
  19 struct perf_stat_config;
  20 struct evlist;
  21 struct timespec;
  22
  23 enum iostat_mode_t {
  24         IOSTAT_NONE             = -1,
  25         IOSTAT_RUN              = 0,
  26         IOSTAT_LIST             = 1
  27 };
  28
  29 extern enum iostat_mode_t iostat_mode;
  30
  31 typedef void (*iostat_print_counter_t)(struct perf_stat_config *, struct evsel *, char *);
  32
  33 int iostat_prepare(struct evlist *evlist, struct perf_stat_config *config);
  34 int iostat_parse(const struct option *opt, const char *str,
  35                  int unset __maybe_unused);
  36 void iostat_list(struct evlist *evlist, struct perf_stat_config *config);
  37 void iostat_release(struct evlist *evlist);
  38 void iostat_prefix(struct evlist *evlist, struct perf_stat_config *config,
  39                    char *prefix, struct timespec *ts);
  40 void iostat_print_header_prefix(struct perf_stat_config *config);
  41 void iostat_print_metric(struct perf_stat_config *config, struct evsel *evsel,
  42                          struct perf_stat_output_ctx *out);
  43 void 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 */