linux/tools/perf/util/counts.c
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   1// SPDX-License-Identifier: GPL-2.0
   2#include <errno.h>
   3#include <stdlib.h>
   4#include <string.h>
   5#include "evsel.h"
   6#include "counts.h"
   7#include <linux/zalloc.h>
   8
   9struct perf_counts *perf_counts__new(int ncpus, int nthreads)
  10{
  11        struct perf_counts *counts = zalloc(sizeof(*counts));
  12
  13        if (counts) {
  14                struct xyarray *values;
  15
  16                values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
  17                if (!values) {
  18                        free(counts);
  19                        return NULL;
  20                }
  21
  22                counts->values = values;
  23
  24                values = xyarray__new(ncpus, nthreads, sizeof(bool));
  25                if (!values) {
  26                        xyarray__delete(counts->values);
  27                        free(counts);
  28                        return NULL;
  29                }
  30
  31                counts->loaded = values;
  32        }
  33
  34        return counts;
  35}
  36
  37void perf_counts__delete(struct perf_counts *counts)
  38{
  39        if (counts) {
  40                xyarray__delete(counts->loaded);
  41                xyarray__delete(counts->values);
  42                free(counts);
  43        }
  44}
  45
  46void perf_counts__reset(struct perf_counts *counts)
  47{
  48        xyarray__reset(counts->loaded);
  49        xyarray__reset(counts->values);
  50        memset(&counts->aggr, 0, sizeof(struct perf_counts_values));
  51}
  52
  53void evsel__reset_counts(struct evsel *evsel)
  54{
  55        perf_counts__reset(evsel->counts);
  56}
  57
  58int evsel__alloc_counts(struct evsel *evsel, int ncpus, int nthreads)
  59{
  60        evsel->counts = perf_counts__new(ncpus, nthreads);
  61        return evsel->counts != NULL ? 0 : -ENOMEM;
  62}
  63
  64void evsel__free_counts(struct evsel *evsel)
  65{
  66        perf_counts__delete(evsel->counts);
  67        evsel->counts = NULL;
  68}
  69