tools/perf/util/counts.c

   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
   9 struct 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
  37 void 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
  46 void 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
  53 void evsel__reset_counts(struct evsel *evsel)
  54 {
  55         perf_counts__reset(evsel->counts);
  56 }
  57
  58 int 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
  64 void evsel__free_counts(struct evsel *evsel)
  65 {
  66         perf_counts__delete(evsel->counts);
  67         evsel->counts = NULL;
  68 }