kernel/tools/perf/util/counts.c

   1 #include <stdlib.h>
   2 #include "evsel.h"
   3 #include "counts.h"
   4
   5 struct perf_counts *perf_counts__new(int ncpus, int nthreads)
   6 {
   7         struct perf_counts *counts = zalloc(sizeof(*counts));
   8
   9         if (counts) {
  10                 struct xyarray *values;
  11
  12                 values = xyarray__new(ncpus, nthreads, sizeof(struct perf_counts_values));
  13                 if (!values) {
  14                         free(counts);
  15                         return NULL;
  16                 }
  17
  18                 counts->values = values;
  19         }
  20
  21         return counts;
  22 }
  23
  24 void perf_counts__delete(struct perf_counts *counts)
  25 {
  26         if (counts) {
  27                 xyarray__delete(counts->values);
  28                 free(counts);
  29         }
  30 }
  31
  32 static void perf_counts__reset(struct perf_counts *counts)
  33 {
  34         xyarray__reset(counts->values);
  35 }
  36
  37 void perf_evsel__reset_counts(struct perf_evsel *evsel)
  38 {
  39         perf_counts__reset(evsel->counts);
  40 }
  41
  42 int perf_evsel__alloc_counts(struct perf_evsel *evsel, int ncpus, int nthreads)
  43 {
  44         evsel->counts = perf_counts__new(ncpus, nthreads);
  45         return evsel->counts != NULL ? 0 : -ENOMEM;
  46 }
  47
  48 void perf_evsel__free_counts(struct perf_evsel *evsel)
  49 {
  50         perf_counts__delete(evsel->counts);
  51         evsel->counts = NULL;
  52 }