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 */ 48